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Merge pull request #583 from mc-server/ChangeToPolarSSL 

Change to polar ssl
master
Mattes D 2014-01-25 13:05:16 -08:00
parent c8be9b5b1a 8f1890e877
commit 437a9c8d1f
217 changed files with 734 additions and 48397 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
.gitmodules vendored
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@ -7,3 +7,6 @@
[submodule "MCServer/Plugins/TransAPI"]
path = MCServer/Plugins/TransAPI
url = https://github.com/bearbin/transapi.git
[submodule "lib/polarssl"]
path = lib/polarssl
url = https://github.com/polarssl/polarssl

14
CMakeLists.txt
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@ -1,4 +1,3 @@
cmake_minimum_required (VERSION 2.6)
# Without this, the MSVC variable isn't defined for MSVC builds ( http://www.cmake.org/pipermail/cmake/2011-November/047130.html )
@ -92,12 +91,6 @@ else()
endif()
# Under clang, we need to disable ASM support in CryptoPP:
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
add_definitions(-DCRYPTOPP_DISABLE_ASM)
endif()
# Under Windows, we need Lua as DLL; on *nix we need it linked statically:
if (WIN32)
add_definitions(-DLUA_BUILD_AS_DLL)
@ -183,7 +176,6 @@ project (MCServer)
# Include all the libraries:
add_subdirectory(lib/inifile/)
add_subdirectory(lib/jsoncpp/)
add_subdirectory(lib/cryptopp/)
add_subdirectory(lib/zlib/)
add_subdirectory(lib/lua/)
add_subdirectory(lib/tolua++/)
@ -192,6 +184,12 @@ add_subdirectory(lib/expat/)
add_subdirectory(lib/luaexpat/)
add_subdirectory(lib/md5/)
# We use EXCLUDE_FROM_ALL so that only the explicit dependencies are used
# (PolarSSL also has test and example programs in their CMakeLists.txt, we don't want those)
add_subdirectory(lib/polarssl/ EXCLUDE_FROM_ALL)
# Remove disabling the maximum warning level:
# clang does not like a command line that reads -Wall -Wextra -w -Wall -Wextra and does not output any warnings
# We do not do that for MSVC since MSVC produces an awful lot of warnings for its own STL headers;

18
Tools/ProtoProxy/CMakeLists.txt
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@ -63,9 +63,11 @@ endif()
# Set include paths to the used libraries:
include_directories("../../lib")
include_directories("../../lib/polarssl/include")
include_directories("../../src")
function(flatten_files arg1)
set(res "")
foreach(f ${${arg1}})
@ -77,11 +79,11 @@ endfunction()
# Include the libraries:
file(GLOB CRYPTOPP_SRC "../../lib/cryptopp/*.cpp")
file(GLOB CRYPTOPP_HDR "../../lib/cryptopp/*.h")
flatten_files(CRYPTOPP_SRC)
flatten_files(CRYPTOPP_HDR)
source_group("CryptoPP" FILES ${CRYPTOPP_SRC} ${CRYPTOPP_HDR})
file(GLOB POLARSSL_SRC "../../lib/polarssl/library/*.c")
file(GLOB POLARSSL_HDR "../../lib/polarssl/include/polarssl/*.h")
flatten_files(POLARSSL_SRC)
flatten_files(POLARSSL_HDR)
source_group("PolarSSL" FILES ${POLARSSL_SRC} ${POLARSSL_HDR})
file(GLOB ZLIB_SRC "../../lib/zlib/*.c")
file(GLOB ZLIB_HDR "../../lib/zlib/*.h")
@ -96,12 +98,14 @@ set(SHARED_SRC
../../src/StringUtils.cpp
../../src/Log.cpp
../../src/MCLogger.cpp
../../src/Crypto.cpp
)
set(SHARED_HDR
../../src/ByteBuffer.h
../../src/StringUtils.h
../../src/Log.h
../../src/MCLogger.h
../../src/Crypto.h
)
set(SHARED_OSS_SRC
../../src/OSSupport/CriticalSection.cpp
@ -145,8 +149,8 @@ add_executable(ProtoProxy
${SHARED_HDR}
${SHARED_OSS_SRC}
${SHARED_OSS_HDR}
${CRYPTOPP_SRC}
${CRYPTOPP_HDR}
${POLARSSL_SRC}
${POLARSSL_HDR}
${ZLIB_SRC}
${ZLIB_HDR}
)

51
Tools/ProtoProxy/Connection.cpp
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@ -378,13 +378,13 @@ bool cConnection::RelayFromServer(void)
}
case csEncryptedUnderstood:
{
m_ServerDecryptor.ProcessData((byte *)Buffer, (byte *)Buffer, res);
m_ServerDecryptor.ProcessData((Byte *)Buffer, (Byte *)Buffer, res);
DataLog(Buffer, res, "Decrypted %d bytes from the SERVER", res);
return DecodeServersPackets(Buffer, res);
}
case csEncryptedUnknown:
{
m_ServerDecryptor.ProcessData((byte *)Buffer, (byte *)Buffer, res);
m_ServerDecryptor.ProcessData((Byte *)Buffer, (Byte *)Buffer, res);
DataLog(Buffer, res, "Decrypted %d bytes from the SERVER", res);
return CLIENTSEND(Buffer, res);
}
@ -423,7 +423,7 @@ bool cConnection::RelayFromClient(void)
case csEncryptedUnknown:
{
DataLog(Buffer, res, "Decrypted %d bytes from the CLIENT", res);
m_ServerEncryptor.ProcessData((byte *)Buffer, (byte *)Buffer, res);
m_ServerEncryptor.ProcessData((Byte *)Buffer, (Byte *)Buffer, res);
return SERVERSEND(Buffer, res);
}
}
@ -473,13 +473,13 @@ bool cConnection::SendData(SOCKET a_Socket, cByteBuffer & a_Data, const char * a
bool cConnection::SendEncryptedData(SOCKET a_Socket, Encryptor & a_Encryptor, const char * a_Data, int a_Size, const char * a_Peer)
bool cConnection::SendEncryptedData(SOCKET a_Socket, cAESCFBEncryptor & a_Encryptor, const char * a_Data, int a_Size, const char * a_Peer)
{
DataLog(a_Data, a_Size, "Encrypting %d bytes to %s", a_Size, a_Peer);
const byte * Data = (const byte *)a_Data;
const Byte * Data = (const Byte *)a_Data;
while (a_Size > 0)
{
byte Buffer[64 KiB];
Byte Buffer[64 KiB];
int NumBytes = (a_Size > sizeof(Buffer)) ? sizeof(Buffer) : a_Size;
a_Encryptor.ProcessData(Buffer, Data, NumBytes);
bool res = SendData(a_Socket, (const char *)Buffer, NumBytes, a_Peer);
@ -497,7 +497,7 @@ bool cConnection::SendEncryptedData(SOCKET a_Socket, Encryptor & a_Encryptor, co
bool cConnection::SendEncryptedData(SOCKET a_Socket, Encryptor & a_Encryptor, cByteBuffer & a_Data, const char * a_Peer)
bool cConnection::SendEncryptedData(SOCKET a_Socket, cAESCFBEncryptor & a_Encryptor, cByteBuffer & a_Data, const char * a_Peer)
{
AString All;
a_Data.ReadAll(All);
@ -2701,7 +2701,7 @@ bool cConnection::ParseMetadata(cByteBuffer & a_Buffer, AString & a_Metadata)
int Length = 0;
switch (Type)
{
case 0: Length = 1; break; // byte
case 0: Length = 1; break; // Byte
case 1: Length = 2; break; // short
case 2: Length = 4; break; // int
case 3: Length = 4; break; // float
@ -2860,37 +2860,26 @@ void cConnection::LogMetadata(const AString & a_Metadata, size_t a_IndentCount)
void cConnection::SendEncryptionKeyResponse(const AString & a_ServerPublicKey, const AString & a_Nonce)
{
// Generate the shared secret and encrypt using the server's public key
byte SharedSecret[16];
byte EncryptedSecret[128];
Byte SharedSecret[16];
Byte EncryptedSecret[128];
memset(SharedSecret, 0, sizeof(SharedSecret)); // Use all zeroes for the initial secret
RSA::PublicKey pk;
CryptoPP::StringSource src(a_ServerPublicKey, true);
ByteQueue bq;
src.TransferTo(bq);
bq.MessageEnd();
pk.Load(bq);
RSAES<PKCS1v15>::Encryptor rsaEncryptor(pk);
RandomPool rng;
time_t CurTime = time(NULL);
rng.Put((const byte *)&CurTime, sizeof(CurTime));
int EncryptedLength = rsaEncryptor.FixedCiphertextLength();
ASSERT(EncryptedLength <= sizeof(EncryptedSecret));
rsaEncryptor.Encrypt(rng, SharedSecret, sizeof(SharedSecret), EncryptedSecret);
m_ServerEncryptor.SetKey(SharedSecret, 16, MakeParameters(Name::IV(), ConstByteArrayParameter(SharedSecret, 16, true))(Name::FeedbackSize(), 1));
m_ServerDecryptor.SetKey(SharedSecret, 16, MakeParameters(Name::IV(), ConstByteArrayParameter(SharedSecret, 16, true))(Name::FeedbackSize(), 1));
m_Server.GetPrivateKey().Encrypt(SharedSecret, sizeof(SharedSecret), EncryptedSecret, sizeof(EncryptedSecret));
m_ServerEncryptor.Init(SharedSecret, SharedSecret);
m_ServerDecryptor.Init(SharedSecret, SharedSecret);
// Encrypt the nonce:
byte EncryptedNonce[128];
rsaEncryptor.Encrypt(rng, (const byte *)(a_Nonce.data()), a_Nonce.size(), EncryptedNonce);
Byte EncryptedNonce[128];
m_Server.GetPrivateKey().Encrypt((const Byte *)a_Nonce.data(), a_Nonce.size(), EncryptedNonce, sizeof(EncryptedNonce));
// Send the packet to the server:
Log("Sending PACKET_ENCRYPTION_KEY_RESPONSE to the SERVER");
cByteBuffer ToServer(1024);
ToServer.WriteByte(0x01); // To server: Encryption key response
ToServer.WriteBEShort(EncryptedLength);
ToServer.WriteBuf(EncryptedSecret, EncryptedLength);
ToServer.WriteBEShort(EncryptedLength);
ToServer.WriteBuf(EncryptedNonce, EncryptedLength);
ToServer.WriteBEShort((short)sizeof(EncryptedSecret));
ToServer.WriteBuf(EncryptedSecret, sizeof(EncryptedSecret));
ToServer.WriteBEShort((short)sizeof(EncryptedNonce));
ToServer.WriteBuf(EncryptedNonce, sizeof(EncryptedNonce));
SERVERSEND(ToServer);
m_ServerState = csEncryptedUnderstood;
m_IsServerEncrypted = true;

10
Tools/ProtoProxy/Connection.h
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@ -62,14 +62,12 @@ public:
void LogFlush(void);
protected:
typedef CFB_Mode<AES>::Encryption Encryptor;
typedef CFB_Mode<AES>::Decryption Decryptor;
cByteBuffer m_ClientBuffer;
cByteBuffer m_ServerBuffer;
Decryptor m_ServerDecryptor;
Encryptor m_ServerEncryptor;
cAESCFBDecryptor m_ServerDecryptor;
cAESCFBEncryptor m_ServerEncryptor;
AString m_ServerEncryptionBuffer; // Buffer for the data to be sent to the server once encryption is established
@ -111,10 +109,10 @@ protected:
bool SendData(SOCKET a_Socket, cByteBuffer & a_Data, const char * a_Peer);
/// Sends data to the specfied socket, after encrypting it using a_Encryptor. If sending fails, prints a fail message using a_Peer and returns false
bool SendEncryptedData(SOCKET a_Socket, Encryptor & a_Encryptor, const char * a_Data, int a_Size, const char * a_Peer);
bool SendEncryptedData(SOCKET a_Socket, cAESCFBEncryptor & a_Encryptor, const char * a_Data, int a_Size, const char * a_Peer);
/// Sends data to the specfied socket, after encrypting it using a_Encryptor. If sending fails, prints a fail message using a_Peer and returns false
bool SendEncryptedData(SOCKET a_Socket, Encryptor & a_Encryptor, cByteBuffer & a_Data, const char * a_Peer);
bool SendEncryptedData(SOCKET a_Socket, cAESCFBEncryptor & a_Encryptor, cByteBuffer & a_Data, const char * a_Peer);
/// Decodes packets coming from the client, sends appropriate counterparts to the server; returns false if the connection is to be dropped
bool DecodeClientsPackets(const char * a_Data, int a_Size);

8
Tools/ProtoProxy/Globals.h
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@ -74,6 +74,8 @@ typedef unsigned long long UInt64;
typedef unsigned int UInt32;
typedef unsigned short UInt16;
typedef unsigned char Byte;
@ -223,12 +225,8 @@ public:
#include "cryptopp/randpool.h"
#include "cryptopp/aes.h"
#include "cryptopp/rsa.h"
#include "cryptopp/modes.h"
#include "../../src/Crypto.h"
using namespace CryptoPP;

8
Tools/ProtoProxy/Server.cpp
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@ -34,12 +34,8 @@ int cServer::Init(short a_ListenPort, short a_ConnectPort)
#endif // _WIN32
printf("Generating protocol encryption keypair...\n");
time_t CurTime = time(NULL);
RandomPool rng;
rng.Put((const byte *)&CurTime, sizeof(CurTime));
m_PrivateKey.GenerateRandomWithKeySize(rng, 1024);
RSA::PublicKey pk(m_PrivateKey);
m_PublicKey = pk;
m_PrivateKey.Generate();
m_PublicKeyDER = m_PrivateKey.GetPubKeyDER();
m_ListenSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
sockaddr_in local;

8
Tools/ProtoProxy/Server.h
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@ -17,8 +17,8 @@
class cServer
{
SOCKET m_ListenSocket;
RSA::PrivateKey m_PrivateKey;
RSA::PublicKey m_PublicKey;
cRSAPrivateKey m_PrivateKey;
AString m_PublicKeyDER;
short m_ConnectPort;
public:
@ -27,8 +27,8 @@ public:
int Init(short a_ListenPort, short a_ConnectPort);
void Run(void);
RSA::PrivateKey & GetPrivateKey(void) { return m_PrivateKey; }
RSA::PublicKey & GetPublicKey (void) { return m_PublicKey; }
cRSAPrivateKey & GetPrivateKey(void) { return m_PrivateKey; }
const AString & GetPublicKeyDER (void) { return m_PublicKeyDER; }
short GetConnectPort(void) const { return m_ConnectPort; }
} ;

14
lib/cryptopp/CMakeLists.txt
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@ -1,14 +0,0 @@
cmake_minimum_required (VERSION 2.6)
project (cryptopp)
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DCRYPTOPP_DISABLE_ASM")
endif()
include_directories ("${PROJECT_SOURCE_DIR}/../../src/")
file(GLOB cryptopp_SRC
"*.cpp"
)
add_library(cryptopp ${cryptopp_SRC})

1634
lib/cryptopp/Doxyfile
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File diff suppressed because it is too large Load Diff

51
lib/cryptopp/License.txt
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@ -1,51 +0,0 @@
Compilation Copyright (c) 1995-2013 by Wei Dai. All rights reserved.
This copyright applies only to this software distribution package
as a compilation, and does not imply a copyright on any particular
file in the package.
All individual files in this compilation are placed in the public domain by
Wei Dai and other contributors.
I would like to thank the following authors for placing their works into
the public domain:
Joan Daemen - 3way.cpp
Leonard Janke - cast.cpp, seal.cpp
Steve Reid - cast.cpp
Phil Karn - des.cpp
Andrew M. Kuchling - md2.cpp, md4.cpp
Colin Plumb - md5.cpp
Seal Woods - rc6.cpp
Chris Morgan - rijndael.cpp
Paulo Baretto - rijndael.cpp, skipjack.cpp, square.cpp
Richard De Moliner - safer.cpp
Matthew Skala - twofish.cpp
Kevin Springle - camellia.cpp, shacal2.cpp, ttmac.cpp, whrlpool.cpp, ripemd.cpp
Ronny Van Keer - sha3.cpp
The Crypto++ Library (as a compilation) is currently licensed under the Boost
Software License 1.0 (http://www.boost.org/users/license.html).
Boost Software License - Version 1.0 - August 17th, 2003
Permission is hereby granted, free of charge, to any person or organization
obtaining a copy of the software and accompanying documentation covered by
this license (the "Software") to use, reproduce, display, distribute,
execute, and transmit the Software, and to prepare derivative works of the
Software, and to permit third-parties to whom the Software is furnished to
do so, all subject to the following:
The copyright notices in the Software and this entire statement, including
the above license grant, this restriction and the following disclaimer,
must be included in all copies of the Software, in whole or in part, and
all derivative works of the Software, unless such copies or derivative
works are solely in the form of machine-executable object code generated by
a source language processor.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

452
lib/cryptopp/Readme.txt
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@ -1,452 +0,0 @@
Crypto++: a C++ Class Library of Cryptographic Schemes
Version 5.6.2 - 2/20/2013
Crypto++ Library is a free C++ class library of cryptographic schemes.
Currently the library contains the following algorithms:
algorithm type name
authenticated encryption schemes GCM, CCM, EAX
high speed stream ciphers Panama, Sosemanuk, Salsa20, XSalsa20
AES and AES candidates AES (Rijndael), RC6, MARS, Twofish, Serpent,
CAST-256
IDEA, Triple-DES (DES-EDE2 and DES-EDE3),
other block ciphers Camellia, SEED, RC5, Blowfish, TEA, XTEA,
Skipjack, SHACAL-2
block cipher modes of operation ECB, CBC, CBC ciphertext stealing (CTS),
CFB, OFB, counter mode (CTR)
message authentication codes VMAC, HMAC, GMAC, CMAC, CBC-MAC, DMAC,
Two-Track-MAC
SHA-1, SHA-2 (SHA-224, SHA-256, SHA-384, and
hash functions SHA-512), SHA-3, Tiger, WHIRLPOOL, RIPEMD-128,
RIPEMD-256, RIPEMD-160, RIPEMD-320
RSA, DSA, ElGamal, Nyberg-Rueppel (NR),
public-key cryptography Rabin-Williams (RW), LUC, LUCELG,
DLIES (variants of DHAES), ESIGN
padding schemes for public-key PKCS#1 v2.0, OAEP, PSS, PSSR, IEEE P1363
systems EMSA2 and EMSA5
Diffie-Hellman (DH), Unified Diffie-Hellman
key agreement schemes (DH2), Menezes-Qu-Vanstone (MQV), LUCDIF,
XTR-DH
elliptic curve cryptography ECDSA, ECNR, ECIES, ECDH, ECMQV
insecure or obsolescent MD2, MD4, MD5, Panama Hash, DES, ARC4, SEAL
algorithms retained for backwards 3.0, WAKE-OFB, DESX (DES-XEX3), RC2,
compatibility and historical SAFER, 3-WAY, GOST, SHARK, CAST-128, Square
value
Other features include:
* pseudo random number generators (PRNG): ANSI X9.17 appendix C, RandomPool
* password based key derivation functions: PBKDF1 and PBKDF2 from PKCS #5,
PBKDF from PKCS #12 appendix B
* Shamir's secret sharing scheme and Rabin's information dispersal algorithm
(IDA)
* fast multi-precision integer (bignum) and polynomial operations
* finite field arithmetics, including GF(p) and GF(2^n)
* prime number generation and verification
* useful non-cryptographic algorithms
+ DEFLATE (RFC 1951) compression/decompression with gzip (RFC 1952) and
zlib (RFC 1950) format support
+ hex, base-32, and base-64 coding/decoding
+ 32-bit CRC and Adler32 checksum
* class wrappers for these operating system features (optional):
+ high resolution timers on Windows, Unix, and Mac OS
+ Berkeley and Windows style sockets
+ Windows named pipes
+ /dev/random, /dev/urandom, /dev/srandom
+ Microsoft's CryptGenRandom on Windows
* A high level interface for most of the above, using a filter/pipeline
metaphor
* benchmarks and validation testing
* x86, x86-64 (x64), MMX, and SSE2 assembly code for the most commonly used
algorithms, with run-time CPU feature detection and code selection
* some versions are available in FIPS 140-2 validated form
You are welcome to use it for any purpose without paying me, but see
License.txt for the fine print.
The following compilers are supported for this release. Please visit
http://www.cryptopp.com the most up to date build instructions and porting notes.
* MSVC 6.0 - 2010
* GCC 3.3 - 4.5
* C++Builder 2010
* Intel C++ Compiler 9 - 11.1
* Sun Studio 12u1, Express 11/08, Express 06/10
*** Important Usage Notes ***
1. If a constructor for A takes a pointer to an object B (except primitive
types such as int and char), then A owns B and will delete B at A's
destruction. If a constructor for A takes a reference to an object B,
then the caller retains ownership of B and should not destroy it until
A no longer needs it.
2. Crypto++ is thread safe at the class level. This means you can use
Crypto++ safely in a multithreaded application, but you must provide
synchronization when multiple threads access a common Crypto++ object.
*** MSVC-Specific Information ***
On Windows, Crypto++ can be compiled into 3 forms: a static library
including all algorithms, a DLL with only FIPS Approved algorithms, and
a static library with only algorithms not in the DLL.
(FIPS Approved means Approved according to the FIPS 140-2 standard.)
The DLL may be used by itself, or it may be used together with the second
form of the static library. MSVC project files are included to build
all three forms, and sample applications using each of the three forms
are also included.
To compile Crypto++ with MSVC, open the "cryptest.dsw" (for MSVC 6 and MSVC .NET
2003) or "cryptest.sln" (for MSVC 2005 - 2010) workspace file and build one or
more of the following projects:
cryptopp - This builds the DLL. Please note that if you wish to use Crypto++
as a FIPS validated module, you must use a pre-built DLL that has undergone
the FIPS validation process instead of building your own.
dlltest - This builds a sample application that only uses the DLL.
cryptest Non-DLL-Import Configuration - This builds the full static library
along with a full test driver.
cryptest DLL-Import Configuration - This builds a static library containing
only algorithms not in the DLL, along with a full test driver that uses
both the DLL and the static library.
To use the Crypto++ DLL in your application, #include "dll.h" before including
any other Crypto++ header files, and place the DLL in the same directory as
your .exe file. dll.h includes the line #pragma comment(lib, "cryptopp")
so you don't have to explicitly list the import library in your project
settings. To use a static library form of Crypto++, make the "cryptlib"
project a dependency of your application project, or specify it as
an additional library to link with in your project settings.
In either case you should check the compiler options to
make sure that the library and your application are using the same C++
run-time libraries and calling conventions.
*** DLL Memory Management ***
Because it's possible for the Crypto++ DLL to delete objects allocated
by the calling application, they must use the same C++ memory heap. Three
methods are provided to achieve this.
1. The calling application can tell Crypto++ what heap to use. This method
is required when the calling application uses a non-standard heap.
2. Crypto++ can tell the calling application what heap to use. This method
is required when the calling application uses a statically linked C++ Run
Time Library. (Method 1 does not work in this case because the Crypto++ DLL
is initialized before the calling application's heap is initialized.)
3. Crypto++ can automatically use the heap provided by the calling application's
dynamically linked C++ Run Time Library. The calling application must
make sure that the dynamically linked C++ Run Time Library is initialized
before Crypto++ is loaded. (At this time it is not clear if it is possible
to control the order in which DLLs are initialized on Windows 9x machines,
so it might be best to avoid using this method.)
When Crypto++ attaches to a new process, it searches all modules loaded
into the process space for exported functions "GetNewAndDeleteForCryptoPP"
and "SetNewAndDeleteFromCryptoPP". If one of these functions is found,
Crypto++ uses methods 1 or 2, respectively, by calling the function.
Otherwise, method 3 is used.
*** GCC-Specific Information ***
A makefile is included for you to compile Crypto++ with GCC. Make sure
you are using GNU Make and GNU ld. The make process will produce two files,
libcryptopp.a and cryptest.exe. Run "cryptest.exe v" for the validation
suite.
*** Documentation and Support ***
Crypto++ is documented through inline comments in header files, which are
processed through Doxygen to produce an HTML reference manual. You can find
a link to the manual from http://www.cryptopp.com. Also at that site is
the Crypto++ FAQ, which you should browse through before attempting to
use this library, because it will likely answer many of questions that
may come up.
If you run into any problems, please try the Crypto++ mailing list.
The subscription information and the list archive are available on
http://www.cryptopp.com. You can also email me directly by visiting
http://www.weidai.com, but you will probably get a faster response through
the mailing list.
*** History ***
1.0 - First public release. Withdrawn at the request of RSA DSI.
- included Blowfish, BBS, DES, DH, Diamond, DSA, ElGamal, IDEA,
MD5, RC4, RC5, RSA, SHA, WAKE, secret sharing, DEFLATE compression
- had a serious bug in the RSA key generation code.
1.1 - Removed RSA, RC4, RC5
- Disabled calls to RSAREF's non-public functions
- Minor bugs fixed
2.0 - a completely new, faster multiprecision integer class
- added MD5-MAC, HAVAL, 3-WAY, TEA, SAFER, LUC, Rabin, BlumGoldwasser,
elliptic curve algorithms
- added the Lucas strong probable primality test
- ElGamal encryption and signature schemes modified to avoid weaknesses
- Diamond changed to Diamond2 because of key schedule weakness
- fixed bug in WAKE key setup
- SHS class renamed to SHA
- lots of miscellaneous optimizations
2.1 - added Tiger, HMAC, GOST, RIPE-MD160, LUCELG, LUCDIF, XOR-MAC,
OAEP, PSSR, SHARK
- added precomputation to DH, ElGamal, DSA, and elliptic curve algorithms
- added back RC5 and a new RSA
- optimizations in elliptic curves over GF(p)
- changed Rabin to use OAEP and PSSR
- changed many classes to allow copy constructors to work correctly
- improved exception generation and handling
2.2 - added SEAL, CAST-128, Square
- fixed bug in HAVAL (padding problem)
- fixed bug in triple-DES (decryption order was reversed)
- fixed bug in RC5 (couldn't handle key length not a multiple of 4)
- changed HMAC to conform to RFC-2104 (which is not compatible
with the original HMAC)
- changed secret sharing and information dispersal to use GF(2^32)
instead of GF(65521)
- removed zero knowledge prover/verifier for graph isomorphism
- removed several utility classes in favor of the C++ standard library
2.3 - ported to EGCS
- fixed incomplete workaround of min/max conflict in MSVC
3.0 - placed all names into the "CryptoPP" namespace
- added MD2, RC2, RC6, MARS, RW, DH2, MQV, ECDHC, CBC-CTS
- added abstract base classes PK_SimpleKeyAgreementDomain and
PK_AuthenticatedKeyAgreementDomain
- changed DH and LUCDIF to implement the PK_SimpleKeyAgreementDomain
interface and to perform domain parameter and key validation
- changed interfaces of PK_Signer and PK_Verifier to sign and verify
messages instead of message digests
- changed OAEP to conform to PKCS#1 v2.0
- changed benchmark code to produce HTML tables as output
- changed PSSR to track IEEE P1363a
- renamed ElGamalSignature to NR and changed it to track IEEE P1363
- renamed ECKEP to ECMQVC and changed it to track IEEE P1363
- renamed several other classes for clarity
- removed support for calling RSAREF
- removed option to compile old SHA (SHA-0)
- removed option not to throw exceptions
3.1 - added ARC4, Rijndael, Twofish, Serpent, CBC-MAC, DMAC
- added interface for querying supported key lengths of symmetric ciphers
and MACs
- added sample code for RSA signature and verification
- changed CBC-CTS to be compatible with RFC 2040
- updated SEAL to version 3.0 of the cipher specification
- optimized multiprecision squaring and elliptic curves over GF(p)
- fixed bug in MARS key setup
- fixed bug with attaching objects to Deflator
3.2 - added DES-XEX3, ECDSA, DefaultEncryptorWithMAC
- renamed DES-EDE to DES-EDE2 and TripleDES to DES-EDE3
- optimized ARC4
- generalized DSA to allow keys longer than 1024 bits
- fixed bugs in GF2N and ModularArithmetic that can cause calculation errors
- fixed crashing bug in Inflator when given invalid inputs
- fixed endian bug in Serpent
- fixed padding bug in Tiger
4.0 - added Skipjack, CAST-256, Panama, SHA-2 (SHA-256, SHA-384, and SHA-512),
and XTR-DH
- added a faster variant of Rabin's Information Dispersal Algorithm (IDA)
- added class wrappers for these operating system features:
- high resolution timers on Windows, Unix, and MacOS
- Berkeley and Windows style sockets
- Windows named pipes
- /dev/random and /dev/urandom on Linux and FreeBSD
- Microsoft's CryptGenRandom on Windows
- added support for SEC 1 elliptic curve key format and compressed points
- added support for X.509 public key format (subjectPublicKeyInfo) for
RSA, DSA, and elliptic curve schemes
- added support for DER and OpenPGP signature format for DSA
- added support for ZLIB compressed data format (RFC 1950)
- changed elliptic curve encryption to use ECIES (as defined in SEC 1)
- changed MARS key schedule to reflect the latest specification
- changed BufferedTransformation interface to support multiple channels
and messages
- changed CAST and SHA-1 implementations to use public domain source code
- fixed bug in StringSource
- optmized multi-precision integer code for better performance
4.1 - added more support for the recommended elliptic curve parameters in SEC 2
- added Panama MAC, MARC4
- added IV stealing feature to CTS mode
- added support for PKCS #8 private key format for RSA, DSA, and elliptic
curve schemes
- changed Deflate, MD5, Rijndael, and Twofish to use public domain code
- fixed a bug with flushing compressed streams
- fixed a bug with decompressing stored blocks
- fixed a bug with EC point decompression using non-trinomial basis
- fixed a bug in NetworkSource::GeneralPump()
- fixed a performance issue with EC over GF(p) decryption
- fixed syntax to allow GCC to compile without -fpermissive
- relaxed some restrictions in the license
4.2 - added support for longer HMAC keys
- added MD4 (which is not secure so use for compatibility purposes only)
- added compatibility fixes/workarounds for STLport 4.5, GCC 3.0.2,
and MSVC 7.0
- changed MD2 to use public domain code
- fixed a bug with decompressing multiple messages with the same object
- fixed a bug in CBC-MAC with MACing multiple messages with the same object
- fixed a bug in RC5 and RC6 with zero-length keys
- fixed a bug in Adler32 where incorrect checksum may be generated
5.0 - added ESIGN, DLIES, WAKE-OFB, PBKDF1 and PBKDF2 from PKCS #5
- added key validation for encryption and signature public/private keys
- renamed StreamCipher interface to SymmetricCipher, which is now implemented
by both stream ciphers and block cipher modes including ECB and CBC
- added keying interfaces to support resetting of keys and IVs without
having to destroy and recreate objects
- changed filter interface to support non-blocking input/output
- changed SocketSource and SocketSink to use overlapped I/O on Microsoft Windows
- grouped related classes inside structs to help templates, for example
AESEncryption and AESDecryption are now AES::Encryption and AES::Decryption
- where possible, typedefs have been added to improve backwards
compatibility when the CRYPTOPP_MAINTAIN_BACKWARDS_COMPATIBILITY macro is defined
- changed Serpent, HAVAL and IDEA to use public domain code
- implemented SSE2 optimizations for Integer operations
- fixed a bug in HMAC::TruncatedFinal()
- fixed SKIPJACK byte ordering following NIST clarification dated 5/9/02
5.01 - added known answer test for X9.17 RNG in FIPS 140 power-up self test
- submitted to NIST/CSE, but not publicly released
5.02 - changed EDC test to MAC integrity check using HMAC/SHA1
- improved performance of integrity check
- added blinding to defend against RSA timing attack
5.03 - created DLL version of Crypto++ for FIPS 140-2 validation
- fixed vulnerabilities in GetNextIV for CTR and OFB modes
5.0.4 - Removed DES, SHA-256, SHA-384, SHA-512 from DLL
5.1 - added PSS padding and changed PSSR to track IEEE P1363a draft standard
- added blinding for RSA and Rabin to defend against timing attacks
on decryption operations
- changed signing and decryption APIs to support the above
- changed WaitObjectContainer to allow waiting for more than 64
objects at a time on Win32 platforms
- fixed a bug in CBC and ECB modes with processing non-aligned data
- fixed standard conformance bugs in DLIES (DHAES mode) and RW/EMSA2
signature scheme (these fixes are not backwards compatible)
- fixed a number of compiler warnings, minor bugs, and portability problems
- removed Sapphire
5.2 - merged in changes for 5.01 - 5.0.4
- added support for using encoding parameters and key derivation parameters
with public key encryption (implemented by OAEP and DL/ECIES)
- added Camellia, SHACAL-2, Two-Track-MAC, Whirlpool, RIPEMD-320,
RIPEMD-128, RIPEMD-256, Base-32 coding, FIPS variant of CFB mode
- added ThreadUserTimer for timing thread CPU usage
- added option for password-based key derivation functions
to iterate until a mimimum elapsed thread CPU time is reached
- added option (on by default) for DEFLATE compression to detect
uncompressible files and process them more quickly
- improved compatibility and performance on 64-bit platforms,
including Alpha, IA-64, x86-64, PPC64, Sparc64, and MIPS64
- fixed ONE_AND_ZEROS_PADDING to use 0x80 instead 0x01 as padding.
- fixed encoding/decoding of PKCS #8 privateKeyInfo to properly
handle optional attributes
5.2.1 - fixed bug in the "dlltest" DLL testing program
- fixed compiling with STLport using VC .NET
- fixed compiling with -fPIC using GCC
- fixed compiling with -msse2 on systems without memalign()
- fixed inability to instantiate PanamaMAC
- fixed problems with inline documentation
5.2.2 - added SHA-224
- put SHA-256, SHA-384, SHA-512, RSASSA-PSS into DLL
5.2.3 - fixed issues with FIPS algorithm test vectors
- put RSASSA-ISO into DLL
5.3 - ported to MSVC 2005 with support for x86-64
- added defense against AES timing attacks, and more AES test vectors
- changed StaticAlgorithmName() of Rijndael to "AES", CTR to "CTR"
5.4 - added Salsa20
- updated Whirlpool to version 3.0
- ported to GCC 4.1, Sun C++ 5.8, and Borland C++Builder 2006
5.5 - added VMAC and Sosemanuk (with x86-64 and SSE2 assembly)
- improved speed of integer arithmetic, AES, SHA-512, Tiger, Salsa20,
Whirlpool, and PANAMA cipher using assembly (x86-64, MMX, SSE2)
- optimized Camellia and added defense against timing attacks
- updated benchmarks code to show cycles per byte and to time key/IV setup
- started using OpenMP for increased multi-core speed
- enabled GCC optimization flags by default in GNUmakefile
- added blinding and computational error checking for RW signing
- changed RandomPool, X917RNG, GetNextIV, DSA/NR/ECDSA/ECNR to reduce
the risk of reusing random numbers and IVs after virtual machine state
rollback
- changed default FIPS mode RNG from AutoSeededX917RNG<DES_EDE3> to
AutoSeededX917RNG<AES>
- fixed PANAMA cipher interface to accept 256-bit key and 256-bit IV
- moved MD2, MD4, MD5, PanamaHash, ARC4, WAKE_CFB into the namespace "Weak"
- removed HAVAL, MD5-MAC, XMAC
5.5.1 - fixed VMAC validation failure on 32-bit big-endian machines
5.5.2 - ported x64 assembly language code for AES, Salsa20, Sosemanuk, and Panama
to MSVC 2005 (using MASM since MSVC doesn't support inline assembly on x64)
- fixed Salsa20 initialization crash on non-SSE2 machines
- fixed Whirlpool crash on Pentium 2 machines
- fixed possible branch prediction analysis (BPA) vulnerability in
MontgomeryReduce(), which may affect security of RSA, RW, LUC
- fixed link error with MSVC 2003 when using "debug DLL" form of runtime library
- fixed crash in SSE2_Add on P4 machines when compiled with
MSVC 6.0 SP5 with Processor Pack
- ported to MSVC 2008, GCC 4.2, Sun CC 5.9, Intel C++ Compiler 10.0,
and Borland C++Builder 2007
5.6.0 - added AuthenticatedSymmetricCipher interface class and Filter wrappers
- added CCM, GCM (with SSE2 assembly), EAX, CMAC, XSalsa20, and SEED
- added support for variable length IVs
- added OIDs for Brainpool elliptic curve parameters
- improved AES and SHA-256 speed on x86 and x64
- changed BlockTransformation interface to no longer assume data alignment
- fixed incorrect VMAC computation on message lengths
that are >64 mod 128 (x86 assembly version is not affected)
- fixed compiler error in vmac.cpp on x86 with GCC -fPIC
- fixed run-time validation error on x86-64 with GCC 4.3.2 -O2
- fixed HashFilter bug when putMessage=true
- fixed AES-CTR data alignment bug that causes incorrect encryption on ARM
- removed WORD64_AVAILABLE; compiler support for 64-bit int is now required
- ported to GCC 4.3, C++Builder 2009, Sun CC 5.10, Intel C++ Compiler 11
5.6.1 - added support for AES-NI and CLMUL instruction sets in AES and GMAC/GCM
- removed WAKE-CFB
- fixed several bugs in the SHA-256 x86/x64 assembly code:
* incorrect hash on non-SSE2 x86 machines on non-aligned input
* incorrect hash on x86 machines when input crosses 0x80000000
* incorrect hash on x64 when compiled with GCC with optimizations enabled
- fixed bugs in AES x86 and x64 assembly causing crashes in some MSVC build configurations
- switched to a public domain implementation of MARS
- ported to MSVC 2010, GCC 4.5.1, Sun Studio 12u1, C++Builder 2010, Intel C++ Compiler 11.1
- renamed the MSVC DLL project to "cryptopp" for compatibility with MSVC 2010
5.6.2 - changed license to Boost Software License 1.0
- added SHA-3 (Keccak)
- updated DSA to FIPS 186-3 (see DSA2 class)
- fixed Blowfish minimum keylength to be 4 bytes (32 bits)
- fixed Salsa validation failure when compiling with GCC 4.6
- fixed infinite recursion when on x64, assembly disabled, and no AESNI
- ported to MSVC 2012, GCC 4.7, Clang 3.2, Solaris Studio 12.3, Intel C++ Compiler 13.0
Written by Wei Dai

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// adler32.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#include "adler32.h"
NAMESPACE_BEGIN(CryptoPP)
void Adler32::Update(const byte *input, size_t length)
{
const unsigned long BASE = 65521;
unsigned long s1 = m_s1;
unsigned long s2 = m_s2;
if (length % 8 != 0)
{
do
{
s1 += *input++;
s2 += s1;
length--;
} while (length % 8 != 0);
if (s1 >= BASE)
s1 -= BASE;
s2 %= BASE;
}
while (length > 0)
{
s1 += input[0]; s2 += s1;
s1 += input[1]; s2 += s1;
s1 += input[2]; s2 += s1;
s1 += input[3]; s2 += s1;
s1 += input[4]; s2 += s1;
s1 += input[5]; s2 += s1;
s1 += input[6]; s2 += s1;
s1 += input[7]; s2 += s1;
length -= 8;
input += 8;
if (s1 >= BASE)
s1 -= BASE;
if (length % 0x8000 == 0)
s2 %= BASE;
}
assert(s1 < BASE);
assert(s2 < BASE);
m_s1 = (word16)s1;
m_s2 = (word16)s2;
}
void Adler32::TruncatedFinal(byte *hash, size_t size)
{
ThrowIfInvalidTruncatedSize(size);
switch (size)
{
default:
hash[3] = byte(m_s1);
case 3:
hash[2] = byte(m_s1 >> 8);
case 2:
hash[1] = byte(m_s2);
case 1:
hash[0] = byte(m_s2 >> 8);
case 0:
;
}
Reset();
}
NAMESPACE_END

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#ifndef CRYPTOPP_ADLER32_H
#define CRYPTOPP_ADLER32_H
#include "cryptlib.h"
NAMESPACE_BEGIN(CryptoPP)
//! ADLER-32 checksum calculations
class Adler32 : public HashTransformation
{
public:
CRYPTOPP_CONSTANT(DIGESTSIZE = 4)
Adler32() {Reset();}
void Update(const byte *input, size_t length);
void TruncatedFinal(byte *hash, size_t size);
unsigned int DigestSize() const {return DIGESTSIZE;}
static const char * StaticAlgorithmName() {return "Adler32";}
std::string AlgorithmName() const {return StaticAlgorithmName();}
private:
void Reset() {m_s1 = 1; m_s2 = 0;}
word16 m_s1, m_s2;
};
NAMESPACE_END
#endif

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#ifndef CRYPTOPP_AES_H
#define CRYPTOPP_AES_H
#include "rijndael.h"
NAMESPACE_BEGIN(CryptoPP)
//! <a href="http://www.cryptolounge.org/wiki/AES">AES</a> winner, announced on 10/2/2000
DOCUMENTED_TYPEDEF(Rijndael, AES);
typedef RijndaelEncryption AESEncryption;
typedef RijndaelDecryption AESDecryption;
NAMESPACE_END
#endif

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// algebra.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#ifndef CRYPTOPP_ALGEBRA_CPP // SunCC workaround: compiler could cause this file to be included twice
#define CRYPTOPP_ALGEBRA_CPP
#include "algebra.h"
#include "integer.h"
#include <vector>
NAMESPACE_BEGIN(CryptoPP)
template <class T> const T& AbstractGroup<T>::Double(const Element &a) const
{
return this->Add(a, a);
}
template <class T> const T& AbstractGroup<T>::Subtract(const Element &a, const Element &b) const
{
// make copy of a in case Inverse() overwrites it
Element a1(a);
return this->Add(a1, Inverse(b));
}
template <class T> T& AbstractGroup<T>::Accumulate(Element &a, const Element &b) const
{
return a = this->Add(a, b);
}
template <class T> T& AbstractGroup<T>::Reduce(Element &a, const Element &b) const
{
return a = this->Subtract(a, b);
}
template <class T> const T& AbstractRing<T>::Square(const Element &a) const
{
return this->Multiply(a, a);
}
template <class T> const T& AbstractRing<T>::Divide(const Element &a, const Element &b) const
{
// make copy of a in case MultiplicativeInverse() overwrites it
Element a1(a);
return this->Multiply(a1, this->MultiplicativeInverse(b));
}
template <class T> const T& AbstractEuclideanDomain<T>::Mod(const Element &a, const Element &b) const
{
Element q;
this->DivisionAlgorithm(result, q, a, b);
return result;
}
template <class T> const T& AbstractEuclideanDomain<T>::Gcd(const Element &a, const Element &b) const
{
Element g[3]={b, a};
unsigned int i0=0, i1=1, i2=2;
while (!this->Equal(g[i1], this->Identity()))
{
g[i2] = this->Mod(g[i0], g[i1]);
unsigned int t = i0; i0 = i1; i1 = i2; i2 = t;
}
return result = g[i0];
}
template <class T> const typename QuotientRing<T>::Element& QuotientRing<T>::MultiplicativeInverse(const Element &a) const
{
Element g[3]={m_modulus, a};
Element v[3]={m_domain.Identity(), m_domain.MultiplicativeIdentity()};
Element y;
unsigned int i0=0, i1=1, i2=2;
while (!this->Equal(g[i1], this->Identity()))
{
// y = g[i0] / g[i1];
// g[i2] = g[i0] % g[i1];
m_domain.DivisionAlgorithm(g[i2], y, g[i0], g[i1]);
// v[i2] = v[i0] - (v[i1] * y);
v[i2] = m_domain.Subtract(v[i0], m_domain.Multiply(v[i1], y));
unsigned int t = i0; i0 = i1; i1 = i2; i2 = t;
}
return m_domain.IsUnit(g[i0]) ? m_domain.Divide(v[i0], g[i0]) : m_domain.Identity();
}
template <class T> T AbstractGroup<T>::ScalarMultiply(const Element &base, const Integer &exponent) const
{
Element result;
this->SimultaneousMultiply(&result, base, &exponent, 1);
return result;
}
template <class T> T AbstractGroup<T>::CascadeScalarMultiply(const Element &x, const Integer &e1, const Element &y, const Integer &e2) const
{
const unsigned expLen = STDMAX(e1.BitCount(), e2.BitCount());
if (expLen==0)
return this->Identity();
const unsigned w = (expLen <= 46 ? 1 : (expLen <= 260 ? 2 : 3));
const unsigned tableSize = 1<<w;
std::vector<Element> powerTable(tableSize << w);
powerTable[1] = x;
powerTable[tableSize] = y;
if (w==1)
powerTable[3] = this->Add(x,y);
else
{
powerTable[2] = this->Double(x);
powerTable[2*tableSize] = this->Double(y);
unsigned i, j;
for (i=3; i<tableSize; i+=2)
powerTable[i] = Add(powerTable[i-2], powerTable[2]);
for (i=1; i<tableSize; i+=2)
for (j=i+tableSize; j<(tableSize<<w); j+=tableSize)
powerTable[j] = Add(powerTable[j-tableSize], y);
for (i=3*tableSize; i<(tableSize<<w); i+=2*tableSize)
powerTable[i] = Add(powerTable[i-2*tableSize], powerTable[2*tableSize]);
for (i=tableSize; i<(tableSize<<w); i+=2*tableSize)
for (j=i+2; j<i+tableSize; j+=2)
powerTable[j] = Add(powerTable[j-1], x);
}
Element result;
unsigned power1 = 0, power2 = 0, prevPosition = expLen-1;
bool firstTime = true;
for (int i = expLen-1; i>=0; i--)
{
power1 = 2*power1 + e1.GetBit(i);
power2 = 2*power2 + e2.GetBit(i);
if (i==0 || 2*power1 >= tableSize || 2*power2 >= tableSize)
{
unsigned squaresBefore = prevPosition-i;
unsigned squaresAfter = 0;
prevPosition = i;
while ((power1 || power2) && power1%2 == 0 && power2%2==0)
{
power1 /= 2;
power2 /= 2;
squaresBefore--;
squaresAfter++;
}
if (firstTime)
{
result = powerTable[(power2<<w) + power1];
firstTime = false;
}
else
{
while (squaresBefore--)
result = this->Double(result);
if (power1 || power2)
Accumulate(result, powerTable[(power2<<w) + power1]);
}
while (squaresAfter--)
result = this->Double(result);
power1 = power2 = 0;
}
}
return result;
}
template <class Element, class Iterator> Element GeneralCascadeMultiplication(const AbstractGroup<Element> &group, Iterator begin, Iterator end)
{
if (end-begin == 1)
return group.ScalarMultiply(begin->base, begin->exponent);
else if (end-begin == 2)
return group.CascadeScalarMultiply(begin->base, begin->exponent, (begin+1)->base, (begin+1)->exponent);
else
{
Integer q, t;
Iterator last = end;
--last;
std::make_heap(begin, end);
std::pop_heap(begin, end);
while (!!begin->exponent)
{
// last->exponent is largest exponent, begin->exponent is next largest
t = last->exponent;
Integer::Divide(last->exponent, q, t, begin->exponent);
if (q == Integer::One())
group.Accumulate(begin->base, last->base); // avoid overhead of ScalarMultiply()
else
group.Accumulate(begin->base, group.ScalarMultiply(last->base, q));
std::push_heap(begin, end);
std::pop_heap(begin, end);
}
return group.ScalarMultiply(last->base, last->exponent);
}
}
struct WindowSlider
{
WindowSlider(const Integer &expIn, bool fastNegate, unsigned int windowSizeIn=0)
: exp(expIn), windowModulus(Integer::One()), windowSize(windowSizeIn), windowBegin(0), fastNegate(fastNegate), firstTime(true), finished(false)
{
if (windowSize == 0)
{
unsigned int expLen = exp.BitCount();
windowSize = expLen <= 17 ? 1 : (expLen <= 24 ? 2 : (expLen <= 70 ? 3 : (expLen <= 197 ? 4 : (expLen <= 539 ? 5 : (expLen <= 1434 ? 6 : 7)))));
}
windowModulus <<= windowSize;
}
void FindNextWindow()
{
unsigned int expLen = exp.WordCount() * WORD_BITS;
unsigned int skipCount = firstTime ? 0 : windowSize;
firstTime = false;
while (!exp.GetBit(skipCount))
{
if (skipCount >= expLen)
{
finished = true;
return;
}
skipCount++;
}
exp >>= skipCount;
windowBegin += skipCount;
expWindow = word32(exp % (word(1) << windowSize));
if (fastNegate && exp.GetBit(windowSize))
{
negateNext = true;
expWindow = (word32(1) << windowSize) - expWindow;
exp += windowModulus;
}
else
negateNext = false;
}
Integer exp, windowModulus;
unsigned int windowSize, windowBegin;
word32 expWindow;
bool fastNegate, negateNext, firstTime, finished;
};
template <class T>
void AbstractGroup<T>::SimultaneousMultiply(T *results, const T &base, const Integer *expBegin, unsigned int expCount) const
{
std::vector<std::vector<Element> > buckets(expCount);
std::vector<WindowSlider> exponents;
exponents.reserve(expCount);
unsigned int i;
for (i=0; i<expCount; i++)
{
assert(expBegin->NotNegative());
exponents.push_back(WindowSlider(*expBegin++, InversionIsFast(), 0));
exponents[i].FindNextWindow();
buckets[i].resize(1<<(exponents[i].windowSize-1), Identity());
}
unsigned int expBitPosition = 0;
Element g = base;
bool notDone = true;
while (notDone)
{
notDone = false;
for (i=0; i<expCount; i++)
{
if (!exponents[i].finished && expBitPosition == exponents[i].windowBegin)
{
Element &bucket = buckets[i][exponents[i].expWindow/2];
if (exponents[i].negateNext)
Accumulate(bucket, Inverse(g));
else
Accumulate(bucket, g);
exponents[i].FindNextWindow();
}
notDone = notDone || !exponents[i].finished;
}
if (notDone)
{
g = Double(g);
expBitPosition++;
}
}
for (i=0; i<expCount; i++)
{
Element &r = *results++;
r = buckets[i][buckets[i].size()-1];
if (buckets[i].size() > 1)
{
for (int j = (int)buckets[i].size()-2; j >= 1; j--)
{
Accumulate(buckets[i][j], buckets[i][j+1]);
Accumulate(r, buckets[i][j]);
}
Accumulate(buckets[i][0], buckets[i][1]);
r = Add(Double(r), buckets[i][0]);
}
}
}
template <class T> T AbstractRing<T>::Exponentiate(const Element &base, const Integer &exponent) const
{
Element result;
SimultaneousExponentiate(&result, base, &exponent, 1);
return result;
}
template <class T> T AbstractRing<T>::CascadeExponentiate(const Element &x, const Integer &e1, const Element &y, const Integer &e2) const
{
return MultiplicativeGroup().AbstractGroup<T>::CascadeScalarMultiply(x, e1, y, e2);
}
template <class Element, class Iterator> Element GeneralCascadeExponentiation(const AbstractRing<Element> &ring, Iterator begin, Iterator end)
{
return GeneralCascadeMultiplication<Element>(ring.MultiplicativeGroup(), begin, end);
}
template <class T>
void AbstractRing<T>::SimultaneousExponentiate(T *results, const T &base, const Integer *exponents, unsigned int expCount) const
{
MultiplicativeGroup().AbstractGroup<T>::SimultaneousMultiply(results, base, exponents, expCount);
}
NAMESPACE_END
#endif

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#ifndef CRYPTOPP_ALGEBRA_H
#define CRYPTOPP_ALGEBRA_H
#include "config.h"
NAMESPACE_BEGIN(CryptoPP)
class Integer;
// "const Element&" returned by member functions are references
// to internal data members. Since each object may have only
// one such data member for holding results, the following code
// will produce incorrect results:
// abcd = group.Add(group.Add(a,b), group.Add(c,d));
// But this should be fine:
// abcd = group.Add(a, group.Add(b, group.Add(c,d));
//! Abstract Group
template <class T> class CRYPTOPP_NO_VTABLE AbstractGroup
{
public:
typedef T Element;
virtual ~AbstractGroup() {}
virtual bool Equal(const Element &a, const Element &b) const =0;
virtual const Element& Identity() const =0;
virtual const Element& Add(const Element &a, const Element &b) const =0;
virtual const Element& Inverse(const Element &a) const =0;
virtual bool InversionIsFast() const {return false;}
virtual const Element& Double(const Element &a) const;
virtual const Element& Subtract(const Element &a, const Element &b) const;
virtual Element& Accumulate(Element &a, const Element &b) const;
virtual Element& Reduce(Element &a, const Element &b) const;
virtual Element ScalarMultiply(const Element &a, const Integer &e) const;
virtual Element CascadeScalarMultiply(const Element &x, const Integer &e1, const Element &y, const Integer &e2) const;
virtual void SimultaneousMultiply(Element *results, const Element &base, const Integer *exponents, unsigned int exponentsCount) const;
};
//! Abstract Ring
template <class T> class CRYPTOPP_NO_VTABLE AbstractRing : public AbstractGroup<T>
{
public:
typedef T Element;
AbstractRing() {m_mg.m_pRing = this;}
AbstractRing(const AbstractRing &source) {m_mg.m_pRing = this;}
AbstractRing& operator=(const AbstractRing &source) {return *this;}
virtual bool IsUnit(const Element &a) const =0;
virtual const Element& MultiplicativeIdentity() const =0;
virtual const Element& Multiply(const Element &a, const Element &b) const =0;
virtual const Element& MultiplicativeInverse(const Element &a) const =0;
virtual const Element& Square(const Element &a) const;
virtual const Element& Divide(const Element &a, const Element &b) const;
virtual Element Exponentiate(const Element &a, const Integer &e) const;
virtual Element CascadeExponentiate(const Element &x, const Integer &e1, const Element &y, const Integer &e2) const;
virtual void SimultaneousExponentiate(Element *results, const Element &base, const Integer *exponents, unsigned int exponentsCount) const;
virtual const AbstractGroup<T>& MultiplicativeGroup() const
{return m_mg;}
private:
class MultiplicativeGroupT : public AbstractGroup<T>
{
public:
const AbstractRing<T>& GetRing() const
{return *m_pRing;}
bool Equal(const Element &a, const Element &b) const
{return GetRing().Equal(a, b);}
const Element& Identity() const
{return GetRing().MultiplicativeIdentity();}
const Element& Add(const Element &a, const Element &b) const
{return GetRing().Multiply(a, b);}
Element& Accumulate(Element &a, const Element &b) const
{return a = GetRing().Multiply(a, b);}
const Element& Inverse(const Element &a) const
{return GetRing().MultiplicativeInverse(a);}
const Element& Subtract(const Element &a, const Element &b) const
{return GetRing().Divide(a, b);}
Element& Reduce(Element &a, const Element &b) const
{return a = GetRing().Divide(a, b);}
const Element& Double(const Element &a) const
{return GetRing().Square(a);}
Element ScalarMultiply(const Element &a, const Integer &e) const
{return GetRing().Exponentiate(a, e);}
Element CascadeScalarMultiply(const Element &x, const Integer &e1, const Element &y, const Integer &e2) const
{return GetRing().CascadeExponentiate(x, e1, y, e2);}
void SimultaneousMultiply(Element *results, const Element &base, const Integer *exponents, unsigned int exponentsCount) const
{GetRing().SimultaneousExponentiate(results, base, exponents, exponentsCount);}
const AbstractRing<T> *m_pRing;
};
MultiplicativeGroupT m_mg;
};
// ********************************************************
//! Base and Exponent
template <class T, class E = Integer>
struct BaseAndExponent
{
public:
BaseAndExponent() {}
BaseAndExponent(const T &base, const E &exponent) : base(base), exponent(exponent) {}
bool operator<(const BaseAndExponent<T, E> &rhs) const {return exponent < rhs.exponent;}
T base;
E exponent;
};
// VC60 workaround: incomplete member template support
template <class Element, class Iterator>
Element GeneralCascadeMultiplication(const AbstractGroup<Element> &group, Iterator begin, Iterator end);
template <class Element, class Iterator>
Element GeneralCascadeExponentiation(const AbstractRing<Element> &ring, Iterator begin, Iterator end);
// ********************************************************
//! Abstract Euclidean Domain
template <class T> class CRYPTOPP_NO_VTABLE AbstractEuclideanDomain : public AbstractRing<T>
{
public:
typedef T Element;
virtual void DivisionAlgorithm(Element &r, Element &q, const Element &a, const Element &d) const =0;
virtual const Element& Mod(const Element &a, const Element &b) const =0;
virtual const Element& Gcd(const Element &a, const Element &b) const;
protected:
mutable Element result;
};
// ********************************************************
//! EuclideanDomainOf
template <class T> class EuclideanDomainOf : public AbstractEuclideanDomain<T>
{
public:
typedef T Element;
EuclideanDomainOf() {}
bool Equal(const Element &a, const Element &b) const
{return a==b;}
const Element& Identity() const
{return Element::Zero();}
const Element& Add(const Element &a, const Element &b) const
{return result = a+b;}
Element& Accumulate(Element &a, const Element &b) const
{return a+=b;}
const Element& Inverse(const Element &a) const
{return result = -a;}
const Element& Subtract(const Element &a, const Element &b) const
{return result = a-b;}
Element& Reduce(Element &a, const Element &b) const
{return a-=b;}
const Element& Double(const Element &a) const
{return result = a.Doubled();}
const Element& MultiplicativeIdentity() const
{return Element::One();}
const Element& Multiply(const Element &a, const Element &b) const
{return result = a*b;}
const Element& Square(const Element &a) const
{return result = a.Squared();}
bool IsUnit(const Element &a) const
{return a.IsUnit();}
const Element& MultiplicativeInverse(const Element &a) const
{return result = a.MultiplicativeInverse();}
const Element& Divide(const Element &a, const Element &b) const
{return result = a/b;}
const Element& Mod(const Element &a, const Element &b) const
{return result = a%b;}
void DivisionAlgorithm(Element &r, Element &q, const Element &a, const Element &d) const
{Element::Divide(r, q, a, d);}
bool operator==(const EuclideanDomainOf<T> &rhs) const
{return true;}
private:
mutable Element result;
};
//! Quotient Ring
template <class T> class QuotientRing : public AbstractRing<typename T::Element>
{
public:
typedef T EuclideanDomain;
typedef typename T::Element Element;
QuotientRing(const EuclideanDomain &domain, const Element &modulus)
: m_domain(domain), m_modulus(modulus) {}
const EuclideanDomain & GetDomain() const
{return m_domain;}
const Element& GetModulus() const
{return m_modulus;}
bool Equal(const Element &a, const Element &b) const
{return m_domain.Equal(m_domain.Mod(m_domain.Subtract(a, b), m_modulus), m_domain.Identity());}
const Element& Identity() const
{return m_domain.Identity();}
const Element& Add(const Element &a, const Element &b) const
{return m_domain.Add(a, b);}
Element& Accumulate(Element &a, const Element &b) const
{return m_domain.Accumulate(a, b);}
const Element& Inverse(const Element &a) const
{return m_domain.Inverse(a);}
const Element& Subtract(const Element &a, const Element &b) const
{return m_domain.Subtract(a, b);}
Element& Reduce(Element &a, const Element &b) const
{return m_domain.Reduce(a, b);}
const Element& Double(const Element &a) const
{return m_domain.Double(a);}
bool IsUnit(const Element &a) const
{return m_domain.IsUnit(m_domain.Gcd(a, m_modulus));}
const Element& MultiplicativeIdentity() const
{return m_domain.MultiplicativeIdentity();}
const Element& Multiply(const Element &a, const Element &b) const
{return m_domain.Mod(m_domain.Multiply(a, b), m_modulus);}
const Element& Square(const Element &a) const
{return m_domain.Mod(m_domain.Square(a), m_modulus);}
const Element& MultiplicativeInverse(const Element &a) const;
bool operator==(const QuotientRing<T> &rhs) const
{return m_domain == rhs.m_domain && m_modulus == rhs.m_modulus;}
protected:
EuclideanDomain m_domain;
Element m_modulus;
};
NAMESPACE_END
#ifdef CRYPTOPP_MANUALLY_INSTANTIATE_TEMPLATES
#include "algebra.cpp"
#endif
#endif

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// algparam.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "algparam.h"
NAMESPACE_BEGIN(CryptoPP)
PAssignIntToInteger g_pAssignIntToInteger = NULL;
bool CombinedNameValuePairs::GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const
{
if (strcmp(name, "ValueNames") == 0)
return m_pairs1.GetVoidValue(name, valueType, pValue) && m_pairs2.GetVoidValue(name, valueType, pValue);
else
return m_pairs1.GetVoidValue(name, valueType, pValue) || m_pairs2.GetVoidValue(name, valueType, pValue);
}
void AlgorithmParametersBase::operator=(const AlgorithmParametersBase& rhs)
{
assert(false);
}
bool AlgorithmParametersBase::GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const
{
if (strcmp(name, "ValueNames") == 0)
{
NameValuePairs::ThrowIfTypeMismatch(name, typeid(std::string), valueType);
if (m_next.get())
m_next->GetVoidValue(name, valueType, pValue);
(*reinterpret_cast<std::string *>(pValue) += m_name) += ";";
return true;
}
else if (strcmp(name, m_name) == 0)
{
AssignValue(name, valueType, pValue);
m_used = true;
return true;
}
else if (m_next.get())
return m_next->GetVoidValue(name, valueType, pValue);
else
return false;
}
AlgorithmParameters::AlgorithmParameters()
: m_defaultThrowIfNotUsed(true)
{
}
AlgorithmParameters::AlgorithmParameters(const AlgorithmParameters &x)
: m_defaultThrowIfNotUsed(x.m_defaultThrowIfNotUsed)
{
m_next.reset(const_cast<AlgorithmParameters &>(x).m_next.release());
}
AlgorithmParameters & AlgorithmParameters::operator=(const AlgorithmParameters &x)
{
m_next.reset(const_cast<AlgorithmParameters &>(x).m_next.release());
return *this;
}
bool AlgorithmParameters::GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const
{
if (m_next.get())
return m_next->GetVoidValue(name, valueType, pValue);
else
return false;
}
NAMESPACE_END
#endif

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#ifndef CRYPTOPP_ALGPARAM_H
#define CRYPTOPP_ALGPARAM_H
#include "cryptlib.h"
#include "smartptr.h"
#include "secblock.h"
NAMESPACE_BEGIN(CryptoPP)
//! used to pass byte array input as part of a NameValuePairs object
/*! the deepCopy option is used when the NameValuePairs object can't
keep a copy of the data available */
class ConstByteArrayParameter
{
public:
ConstByteArrayParameter(const char *data = NULL, bool deepCopy = false)
{
Assign((const byte *)data, data ? strlen(data) : 0, deepCopy);
}
ConstByteArrayParameter(const byte *data, size_t size, bool deepCopy = false)
{
Assign(data, size, deepCopy);
}
template <class T> ConstByteArrayParameter(const T &string, bool deepCopy = false)
{
CRYPTOPP_COMPILE_ASSERT(sizeof(CPP_TYPENAME T::value_type) == 1);
Assign((const byte *)string.data(), string.size(), deepCopy);
}
void Assign(const byte *data, size_t size, bool deepCopy)
{
if (deepCopy)
m_block.Assign(data, size);
else
{
m_data = data;
m_size = size;
}
m_deepCopy = deepCopy;
}
const byte *begin() const {return m_deepCopy ? m_block.begin() : m_data;}
const byte *end() const {return m_deepCopy ? m_block.end() : m_data + m_size;}
size_t size() const {return m_deepCopy ? m_block.size() : m_size;}
private:
bool m_deepCopy;
const byte *m_data;
size_t m_size;
SecByteBlock m_block;
};
class ByteArrayParameter
{
public:
ByteArrayParameter(byte *data = NULL, unsigned int size = 0)
: m_data(data), m_size(size) {}
ByteArrayParameter(SecByteBlock &block)
: m_data(block.begin()), m_size(block.size()) {}
byte *begin() const {return m_data;}
byte *end() const {return m_data + m_size;}
size_t size() const {return m_size;}
private:
byte *m_data;
size_t m_size;
};
class CRYPTOPP_DLL CombinedNameValuePairs : public NameValuePairs
{
public:
CombinedNameValuePairs(const NameValuePairs &pairs1, const NameValuePairs &pairs2)
: m_pairs1(pairs1), m_pairs2(pairs2) {}
bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const;
private:
const NameValuePairs &m_pairs1, &m_pairs2;
};
template <class T, class BASE>
class GetValueHelperClass
{
public:
GetValueHelperClass(const T *pObject, const char *name, const std::type_info &valueType, void *pValue, const NameValuePairs *searchFirst)
: m_pObject(pObject), m_name(name), m_valueType(&valueType), m_pValue(pValue), m_found(false), m_getValueNames(false)
{
if (strcmp(m_name, "ValueNames") == 0)
{
m_found = m_getValueNames = true;
NameValuePairs::ThrowIfTypeMismatch(m_name, typeid(std::string), *m_valueType);
if (searchFirst)
searchFirst->GetVoidValue(m_name, valueType, pValue);
if (typeid(T) != typeid(BASE))
pObject->BASE::GetVoidValue(m_name, valueType, pValue);
((*reinterpret_cast<std::string *>(m_pValue) += "ThisPointer:") += typeid(T).name()) += ';';
}
if (!m_found && strncmp(m_name, "ThisPointer:", 12) == 0 && strcmp(m_name+12, typeid(T).name()) == 0)
{
NameValuePairs::ThrowIfTypeMismatch(m_name, typeid(T *), *m_valueType);
*reinterpret_cast<const T **>(pValue) = pObject;
m_found = true;
return;
}
if (!m_found && searchFirst)
m_found = searchFirst->GetVoidValue(m_name, valueType, pValue);
if (!m_found && typeid(T) != typeid(BASE))
m_found = pObject->BASE::GetVoidValue(m_name, valueType, pValue);
}
operator bool() const {return m_found;}
template <class R>
GetValueHelperClass<T,BASE> & operator()(const char *name, const R & (T::*pm)() const)
{
if (m_getValueNames)
(*reinterpret_cast<std::string *>(m_pValue) += name) += ";";
if (!m_found && strcmp(name, m_name) == 0)
{
NameValuePairs::ThrowIfTypeMismatch(name, typeid(R), *m_valueType);
*reinterpret_cast<R *>(m_pValue) = (m_pObject->*pm)();
m_found = true;
}
return *this;
}
GetValueHelperClass<T,BASE> &Assignable()
{
#ifndef __INTEL_COMPILER // ICL 9.1 workaround: Intel compiler copies the vTable pointer for some reason
if (m_getValueNames)
((*reinterpret_cast<std::string *>(m_pValue) += "ThisObject:") += typeid(T).name()) += ';';
if (!m_found && strncmp(m_name, "ThisObject:", 11) == 0 && strcmp(m_name+11, typeid(T).name()) == 0)
{
NameValuePairs::ThrowIfTypeMismatch(m_name, typeid(T), *m_valueType);
*reinterpret_cast<T *>(m_pValue) = *m_pObject;
m_found = true;
}
#endif
return *this;
}
private:
const T *m_pObject;
const char *m_name;
const std::type_info *m_valueType;
void *m_pValue;
bool m_found, m_getValueNames;
};
template <class BASE, class T>
GetValueHelperClass<T, BASE> GetValueHelper(const T *pObject, const char *name, const std::type_info &valueType, void *pValue, const NameValuePairs *searchFirst=NULL, BASE *dummy=NULL)
{
return GetValueHelperClass<T, BASE>(pObject, name, valueType, pValue, searchFirst);
}
template <class T>
GetValueHelperClass<T, T> GetValueHelper(const T *pObject, const char *name, const std::type_info &valueType, void *pValue, const NameValuePairs *searchFirst=NULL)
{
return GetValueHelperClass<T, T>(pObject, name, valueType, pValue, searchFirst);
}
// ********************************************************
template <class R>
R Hack_DefaultValueFromConstReferenceType(const R &)
{
return R();
}
template <class R>
bool Hack_GetValueIntoConstReference(const NameValuePairs &source, const char *name, const R &value)
{
return source.GetValue(name, const_cast<R &>(value));
}
template <class T, class BASE>
class AssignFromHelperClass
{
public:
AssignFromHelperClass(T *pObject, const NameValuePairs &source)
: m_pObject(pObject), m_source(source), m_done(false)
{
if (source.GetThisObject(*pObject))
m_done = true;
else if (typeid(BASE) != typeid(T))
pObject->BASE::AssignFrom(source);
}
template <class R>
AssignFromHelperClass & operator()(const char *name, void (T::*pm)(R)) // VC60 workaround: "const R &" here causes compiler error
{
if (!m_done)
{
R value = Hack_DefaultValueFromConstReferenceType(reinterpret_cast<R>(*(int *)NULL));
if (!Hack_GetValueIntoConstReference(m_source, name, value))
throw InvalidArgument(std::string(typeid(T).name()) + ": Missing required parameter '" + name + "'");
(m_pObject->*pm)(value);
}
return *this;
}
template <class R, class S>
AssignFromHelperClass & operator()(const char *name1, const char *name2, void (T::*pm)(R, S)) // VC60 workaround: "const R &" here causes compiler error
{
if (!m_done)
{
R value1 = Hack_DefaultValueFromConstReferenceType(reinterpret_cast<R>(*(int *)NULL));
if (!Hack_GetValueIntoConstReference(m_source, name1, value1))
throw InvalidArgument(std::string(typeid(T).name()) + ": Missing required parameter '" + name1 + "'");
S value2 = Hack_DefaultValueFromConstReferenceType(reinterpret_cast<S>(*(int *)NULL));
if (!Hack_GetValueIntoConstReference(m_source, name2, value2))
throw InvalidArgument(std::string(typeid(T).name()) + ": Missing required parameter '" + name2 + "'");
(m_pObject->*pm)(value1, value2);
}
return *this;
}
private:
T *m_pObject;
const NameValuePairs &m_source;
bool m_done;
};
template <class BASE, class T>
AssignFromHelperClass<T, BASE> AssignFromHelper(T *pObject, const NameValuePairs &source, BASE *dummy=NULL)
{
return AssignFromHelperClass<T, BASE>(pObject, source);
}
template <class T>
AssignFromHelperClass<T, T> AssignFromHelper(T *pObject, const NameValuePairs &source)
{
return AssignFromHelperClass<T, T>(pObject, source);
}
// ********************************************************
// to allow the linker to discard Integer code if not needed.
typedef bool (CRYPTOPP_API * PAssignIntToInteger)(const std::type_info &valueType, void *pInteger, const void *pInt);
CRYPTOPP_DLL extern PAssignIntToInteger g_pAssignIntToInteger;
CRYPTOPP_DLL const std::type_info & CRYPTOPP_API IntegerTypeId();
class CRYPTOPP_DLL AlgorithmParametersBase
{
public:
class ParameterNotUsed : public Exception
{
public:
ParameterNotUsed(const char *name) : Exception(OTHER_ERROR, std::string("AlgorithmParametersBase: parameter \"") + name + "\" not used") {}
};
// this is actually a move, not a copy
AlgorithmParametersBase(const AlgorithmParametersBase &x)
: m_name(x.m_name), m_throwIfNotUsed(x.m_throwIfNotUsed), m_used(x.m_used)
{
m_next.reset(const_cast<AlgorithmParametersBase &>(x).m_next.release());
x.m_used = true;
}
AlgorithmParametersBase(const char *name, bool throwIfNotUsed)
: m_name(name), m_throwIfNotUsed(throwIfNotUsed), m_used(false) {}
virtual ~AlgorithmParametersBase()
{
#ifdef CRYPTOPP_UNCAUGHT_EXCEPTION_AVAILABLE
if (!std::uncaught_exception())
#else
try
#endif
{
if (m_throwIfNotUsed && !m_used)
throw ParameterNotUsed(m_name);
}
#ifndef CRYPTOPP_UNCAUGHT_EXCEPTION_AVAILABLE
catch(...)
{
}
#endif
}
bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const;
protected:
friend class AlgorithmParameters;
void operator=(const AlgorithmParametersBase& rhs); // assignment not allowed, declare this for VC60
virtual void AssignValue(const char *name, const std::type_info &valueType, void *pValue) const =0;
virtual void MoveInto(void *p) const =0; // not really const
const char *m_name;
bool m_throwIfNotUsed;
mutable bool m_used;
member_ptr<AlgorithmParametersBase> m_next;
};
template <class T>
class AlgorithmParametersTemplate : public AlgorithmParametersBase
{
public:
AlgorithmParametersTemplate(const char *name, const T &value, bool throwIfNotUsed)
: AlgorithmParametersBase(name, throwIfNotUsed), m_value(value)
{
}
void AssignValue(const char *name, const std::type_info &valueType, void *pValue) const
{
// special case for retrieving an Integer parameter when an int was passed in
if (!(g_pAssignIntToInteger != NULL && typeid(T) == typeid(int) && g_pAssignIntToInteger(valueType, pValue, &m_value)))
{
NameValuePairs::ThrowIfTypeMismatch(name, typeid(T), valueType);
*reinterpret_cast<T *>(pValue) = m_value;
}
}
void MoveInto(void *buffer) const
{
AlgorithmParametersTemplate<T>* p = new(buffer) AlgorithmParametersTemplate<T>(*this);
}
protected:
T m_value;
};
CRYPTOPP_DLL_TEMPLATE_CLASS AlgorithmParametersTemplate<bool>;
CRYPTOPP_DLL_TEMPLATE_CLASS AlgorithmParametersTemplate<int>;
CRYPTOPP_DLL_TEMPLATE_CLASS AlgorithmParametersTemplate<ConstByteArrayParameter>;
class CRYPTOPP_DLL AlgorithmParameters : public NameValuePairs
{
public:
AlgorithmParameters();
#ifdef __BORLANDC__
template <class T>
AlgorithmParameters(const char *name, const T &value, bool throwIfNotUsed=true)
: m_next(new AlgorithmParametersTemplate<T>(name, value, throwIfNotUsed))
, m_defaultThrowIfNotUsed(throwIfNotUsed)
{
}
#endif
AlgorithmParameters(const AlgorithmParameters &x);
AlgorithmParameters & operator=(const AlgorithmParameters &x);
template <class T>
AlgorithmParameters & operator()(const char *name, const T &value, bool throwIfNotUsed)
{
member_ptr<AlgorithmParametersBase> p(new AlgorithmParametersTemplate<T>(name, value, throwIfNotUsed));
p->m_next.reset(m_next.release());
m_next.reset(p.release());
m_defaultThrowIfNotUsed = throwIfNotUsed;
return *this;
}
template <class T>
AlgorithmParameters & operator()(const char *name, const T &value)
{
return operator()(name, value, m_defaultThrowIfNotUsed);
}
bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const;
protected:
member_ptr<AlgorithmParametersBase> m_next;
bool m_defaultThrowIfNotUsed;
};
//! Create an object that implements NameValuePairs for passing parameters
/*! \param throwIfNotUsed if true, the object will throw an exception if the value is not accessed
\note throwIfNotUsed is ignored if using a compiler that does not support std::uncaught_exception(),
such as MSVC 7.0 and earlier.
\note A NameValuePairs object containing an arbitrary number of name value pairs may be constructed by
repeatedly using operator() on the object returned by MakeParameters, for example:
AlgorithmParameters parameters = MakeParameters(name1, value1)(name2, value2)(name3, value3);
*/
#ifdef __BORLANDC__
typedef AlgorithmParameters MakeParameters;
#else
template <class T>
AlgorithmParameters MakeParameters(const char *name, const T &value, bool throwIfNotUsed = true)
{
return AlgorithmParameters()(name, value, throwIfNotUsed);
}
#endif
#define CRYPTOPP_GET_FUNCTION_ENTRY(name) (Name::name(), &ThisClass::Get##name)
#define CRYPTOPP_SET_FUNCTION_ENTRY(name) (Name::name(), &ThisClass::Set##name)
#define CRYPTOPP_SET_FUNCTION_ENTRY2(name1, name2) (Name::name1(), Name::name2(), &ThisClass::Set##name1##And##name2)
NAMESPACE_END
#endif

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#ifndef CRYPTOPP_ARGNAMES_H
#define CRYPTOPP_ARGNAMES_H
#include "cryptlib.h"
NAMESPACE_BEGIN(CryptoPP)
DOCUMENTED_NAMESPACE_BEGIN(Name)
#define CRYPTOPP_DEFINE_NAME_STRING(name) inline const char *name() {return #name;}
CRYPTOPP_DEFINE_NAME_STRING(ValueNames) //!< string, a list of value names with a semicolon (';') after each name
CRYPTOPP_DEFINE_NAME_STRING(Version) //!< int
CRYPTOPP_DEFINE_NAME_STRING(Seed) //!< ConstByteArrayParameter
CRYPTOPP_DEFINE_NAME_STRING(Key) //!< ConstByteArrayParameter
CRYPTOPP_DEFINE_NAME_STRING(IV) //!< ConstByteArrayParameter, also accepts const byte * for backwards compatibility
CRYPTOPP_DEFINE_NAME_STRING(StolenIV) //!< byte *
CRYPTOPP_DEFINE_NAME_STRING(Rounds) //!< int
CRYPTOPP_DEFINE_NAME_STRING(FeedbackSize) //!< int
CRYPTOPP_DEFINE_NAME_STRING(WordSize) //!< int, in bytes
CRYPTOPP_DEFINE_NAME_STRING(BlockSize) //!< int, in bytes
CRYPTOPP_DEFINE_NAME_STRING(EffectiveKeyLength) //!< int, in bits
CRYPTOPP_DEFINE_NAME_STRING(KeySize) //!< int, in bits
CRYPTOPP_DEFINE_NAME_STRING(ModulusSize) //!< int, in bits
CRYPTOPP_DEFINE_NAME_STRING(SubgroupOrderSize) //!< int, in bits
CRYPTOPP_DEFINE_NAME_STRING(PrivateExponentSize)//!< int, in bits
CRYPTOPP_DEFINE_NAME_STRING(Modulus) //!< Integer
CRYPTOPP_DEFINE_NAME_STRING(PublicExponent) //!< Integer
CRYPTOPP_DEFINE_NAME_STRING(PrivateExponent) //!< Integer
CRYPTOPP_DEFINE_NAME_STRING(PublicElement) //!< Integer
CRYPTOPP_DEFINE_NAME_STRING(SubgroupOrder) //!< Integer
CRYPTOPP_DEFINE_NAME_STRING(Cofactor) //!< Integer
CRYPTOPP_DEFINE_NAME_STRING(SubgroupGenerator) //!< Integer, ECP::Point, or EC2N::Point
CRYPTOPP_DEFINE_NAME_STRING(Curve) //!< ECP or EC2N
CRYPTOPP_DEFINE_NAME_STRING(GroupOID) //!< OID
CRYPTOPP_DEFINE_NAME_STRING(PointerToPrimeSelector) //!< const PrimeSelector *
CRYPTOPP_DEFINE_NAME_STRING(Prime1) //!< Integer
CRYPTOPP_DEFINE_NAME_STRING(Prime2) //!< Integer
CRYPTOPP_DEFINE_NAME_STRING(ModPrime1PrivateExponent) //!< Integer
CRYPTOPP_DEFINE_NAME_STRING(ModPrime2PrivateExponent) //!< Integer
CRYPTOPP_DEFINE_NAME_STRING(MultiplicativeInverseOfPrime2ModPrime1) //!< Integer
CRYPTOPP_DEFINE_NAME_STRING(QuadraticResidueModPrime1) //!< Integer
CRYPTOPP_DEFINE_NAME_STRING(QuadraticResidueModPrime2) //!< Integer
CRYPTOPP_DEFINE_NAME_STRING(PutMessage) //!< bool
CRYPTOPP_DEFINE_NAME_STRING(TruncatedDigestSize) //!< int
CRYPTOPP_DEFINE_NAME_STRING(BlockPaddingScheme) //!< StreamTransformationFilter::BlockPaddingScheme
CRYPTOPP_DEFINE_NAME_STRING(HashVerificationFilterFlags) //!< word32
CRYPTOPP_DEFINE_NAME_STRING(AuthenticatedDecryptionFilterFlags) //!< word32
CRYPTOPP_DEFINE_NAME_STRING(SignatureVerificationFilterFlags) //!< word32
CRYPTOPP_DEFINE_NAME_STRING(InputBuffer) //!< ConstByteArrayParameter
CRYPTOPP_DEFINE_NAME_STRING(OutputBuffer) //!< ByteArrayParameter
CRYPTOPP_DEFINE_NAME_STRING(InputFileName) //!< const char *
CRYPTOPP_DEFINE_NAME_STRING(InputFileNameWide) //!< const wchar_t *
CRYPTOPP_DEFINE_NAME_STRING(InputStreamPointer) //!< std::istream *
CRYPTOPP_DEFINE_NAME_STRING(InputBinaryMode) //!< bool
CRYPTOPP_DEFINE_NAME_STRING(OutputFileName) //!< const char *
CRYPTOPP_DEFINE_NAME_STRING(OutputFileNameWide) //!< const wchar_t *
CRYPTOPP_DEFINE_NAME_STRING(OutputStreamPointer) //!< std::ostream *
CRYPTOPP_DEFINE_NAME_STRING(OutputBinaryMode) //!< bool
CRYPTOPP_DEFINE_NAME_STRING(EncodingParameters) //!< ConstByteArrayParameter
CRYPTOPP_DEFINE_NAME_STRING(KeyDerivationParameters) //!< ConstByteArrayParameter
CRYPTOPP_DEFINE_NAME_STRING(Separator) //< ConstByteArrayParameter
CRYPTOPP_DEFINE_NAME_STRING(Terminator) //< ConstByteArrayParameter
CRYPTOPP_DEFINE_NAME_STRING(Uppercase) //< bool
CRYPTOPP_DEFINE_NAME_STRING(GroupSize) //< int
CRYPTOPP_DEFINE_NAME_STRING(Pad) //< bool
CRYPTOPP_DEFINE_NAME_STRING(PaddingByte) //< byte
CRYPTOPP_DEFINE_NAME_STRING(Log2Base) //< int
CRYPTOPP_DEFINE_NAME_STRING(EncodingLookupArray) //< const byte *
CRYPTOPP_DEFINE_NAME_STRING(DecodingLookupArray) //< const byte *
CRYPTOPP_DEFINE_NAME_STRING(InsertLineBreaks) //< bool
CRYPTOPP_DEFINE_NAME_STRING(MaxLineLength) //< int
CRYPTOPP_DEFINE_NAME_STRING(DigestSize) //!< int, in bytes
CRYPTOPP_DEFINE_NAME_STRING(L1KeyLength) //!< int, in bytes
CRYPTOPP_DEFINE_NAME_STRING(TableSize) //!< int, in bytes
DOCUMENTED_NAMESPACE_END
NAMESPACE_END
#endif

597
lib/cryptopp/asn.cpp
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@ -1,597 +0,0 @@
// asn.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "asn.h"
#include <iomanip>
#include <time.h>
NAMESPACE_BEGIN(CryptoPP)
USING_NAMESPACE(std)
/// DER Length
size_t DERLengthEncode(BufferedTransformation &bt, lword length)
{
size_t i=0;
if (length <= 0x7f)
{
bt.Put(byte(length));
i++;
}
else
{
bt.Put(byte(BytePrecision(length) | 0x80));
i++;
for (int j=BytePrecision(length); j; --j)
{
bt.Put(byte(length >> (j-1)*8));
i++;
}
}
return i;
}
bool BERLengthDecode(BufferedTransformation &bt, lword &length, bool &definiteLength)
{
byte b;
if (!bt.Get(b))
return false;
if (!(b & 0x80))
{
definiteLength = true;
length = b;
}
else
{
unsigned int lengthBytes = b & 0x7f;
if (lengthBytes == 0)
{
definiteLength = false;
return true;
}
definiteLength = true;
length = 0;
while (lengthBytes--)
{
if (length >> (8*(sizeof(length)-1)))
BERDecodeError(); // length about to overflow
if (!bt.Get(b))
return false;
length = (length << 8) | b;
}
}
return true;
}
bool BERLengthDecode(BufferedTransformation &bt, size_t &length)
{
lword lw;
bool definiteLength;
if (!BERLengthDecode(bt, lw, definiteLength))
BERDecodeError();
if (!SafeConvert(lw, length))
BERDecodeError();
return definiteLength;
}
void DEREncodeNull(BufferedTransformation &out)
{
out.Put(TAG_NULL);
out.Put(0);
}
void BERDecodeNull(BufferedTransformation &in)
{
byte b;
if (!in.Get(b) || b != TAG_NULL)
BERDecodeError();
size_t length;
if (!BERLengthDecode(in, length) || length != 0)
BERDecodeError();
}
/// ASN Strings
size_t DEREncodeOctetString(BufferedTransformation &bt, const byte *str, size_t strLen)
{
bt.Put(OCTET_STRING);
size_t lengthBytes = DERLengthEncode(bt, strLen);
bt.Put(str, strLen);
return 1+lengthBytes+strLen;
}
size_t DEREncodeOctetString(BufferedTransformation &bt, const SecByteBlock &str)
{
return DEREncodeOctetString(bt, str.begin(), str.size());
}
size_t BERDecodeOctetString(BufferedTransformation &bt, SecByteBlock &str)
{
byte b;
if (!bt.Get(b) || b != OCTET_STRING)
BERDecodeError();
size_t bc;
if (!BERLengthDecode(bt, bc))
BERDecodeError();
str.resize(bc);
if (bc != bt.Get(str, bc))
BERDecodeError();
return bc;
}
size_t BERDecodeOctetString(BufferedTransformation &bt, BufferedTransformation &str)
{
byte b;
if (!bt.Get(b) || b != OCTET_STRING)
BERDecodeError();
size_t bc;
if (!BERLengthDecode(bt, bc))
BERDecodeError();
bt.TransferTo(str, bc);
return bc;
}
size_t DEREncodeTextString(BufferedTransformation &bt, const std::string &str, byte asnTag)
{
bt.Put(asnTag);
size_t lengthBytes = DERLengthEncode(bt, str.size());
bt.Put((const byte *)str.data(), str.size());
return 1+lengthBytes+str.size();
}
size_t BERDecodeTextString(BufferedTransformation &bt, std::string &str, byte asnTag)
{
byte b;
if (!bt.Get(b) || b != asnTag)
BERDecodeError();
size_t bc;
if (!BERLengthDecode(bt, bc))
BERDecodeError();
SecByteBlock temp(bc);
if (bc != bt.Get(temp, bc))
BERDecodeError();
str.assign((char *)temp.begin(), bc);
return bc;
}
/// ASN BitString
size_t DEREncodeBitString(BufferedTransformation &bt, const byte *str, size_t strLen, unsigned int unusedBits)
{
bt.Put(BIT_STRING);
size_t lengthBytes = DERLengthEncode(bt, strLen+1);
bt.Put((byte)unusedBits);
bt.Put(str, strLen);
return 2+lengthBytes+strLen;
}
size_t BERDecodeBitString(BufferedTransformation &bt, SecByteBlock &str, unsigned int &unusedBits)
{
byte b;
if (!bt.Get(b) || b != BIT_STRING)
BERDecodeError();
size_t bc;
if (!BERLengthDecode(bt, bc))
BERDecodeError();
byte unused;
if (!bt.Get(unused))
BERDecodeError();
unusedBits = unused;
str.resize(bc-1);
if ((bc-1) != bt.Get(str, bc-1))
BERDecodeError();
return bc-1;
}
void DERReencode(BufferedTransformation &source, BufferedTransformation &dest)
{
byte tag;
source.Peek(tag);
BERGeneralDecoder decoder(source, tag);
DERGeneralEncoder encoder(dest, tag);
if (decoder.IsDefiniteLength())
decoder.TransferTo(encoder, decoder.RemainingLength());
else
{
while (!decoder.EndReached())
DERReencode(decoder, encoder);
}
decoder.MessageEnd();
encoder.MessageEnd();
}
void OID::EncodeValue(BufferedTransformation &bt, word32 v)
{
for (unsigned int i=RoundUpToMultipleOf(STDMAX(7U,BitPrecision(v)), 7U)-7; i != 0; i-=7)
bt.Put((byte)(0x80 | ((v >> i) & 0x7f)));
bt.Put((byte)(v & 0x7f));
}
size_t OID::DecodeValue(BufferedTransformation &bt, word32 &v)
{
byte b;
size_t i=0;
v = 0;
while (true)
{
if (!bt.Get(b))
BERDecodeError();
i++;
if (v >> (8*sizeof(v)-7)) // v about to overflow
BERDecodeError();
v <<= 7;
v += b & 0x7f;
if (!(b & 0x80))
return i;
}
}
void OID::DEREncode(BufferedTransformation &bt) const
{
assert(m_values.size() >= 2);
ByteQueue temp;
temp.Put(byte(m_values[0] * 40 + m_values[1]));
for (size_t i=2; i<m_values.size(); i++)
EncodeValue(temp, m_values[i]);
bt.Put(OBJECT_IDENTIFIER);
DERLengthEncode(bt, temp.CurrentSize());
temp.TransferTo(bt);
}
void OID::BERDecode(BufferedTransformation &bt)
{
byte b;
if (!bt.Get(b) || b != OBJECT_IDENTIFIER)
BERDecodeError();
size_t length;
if (!BERLengthDecode(bt, length) || length < 1)
BERDecodeError();
if (!bt.Get(b))
BERDecodeError();
length--;
m_values.resize(2);
m_values[0] = b / 40;
m_values[1] = b % 40;
while (length > 0)
{
word32 v;
size_t valueLen = DecodeValue(bt, v);
if (valueLen > length)
BERDecodeError();
m_values.push_back(v);
length -= valueLen;
}
}
void OID::BERDecodeAndCheck(BufferedTransformation &bt) const
{
OID oid(bt);
if (*this != oid)
BERDecodeError();
}
inline BufferedTransformation & EncodedObjectFilter::CurrentTarget()
{
if (m_flags & PUT_OBJECTS)
return *AttachedTransformation();
else
return TheBitBucket();
}
void EncodedObjectFilter::Put(const byte *inString, size_t length)
{
if (m_nCurrentObject == m_nObjects)
{
AttachedTransformation()->Put(inString, length);
return;
}
LazyPutter lazyPutter(m_queue, inString, length);
while (m_queue.AnyRetrievable())
{
switch (m_state)
{
case IDENTIFIER:
if (!m_queue.Get(m_id))
return;
m_queue.TransferTo(CurrentTarget(), 1);
m_state = LENGTH; // fall through
case LENGTH:
{
byte b;
if (m_level > 0 && m_id == 0 && m_queue.Peek(b) && b == 0)
{
m_queue.TransferTo(CurrentTarget(), 1);
m_level--;
m_state = IDENTIFIER;
break;
}
ByteQueue::Walker walker(m_queue);
bool definiteLength;
if (!BERLengthDecode(walker, m_lengthRemaining, definiteLength))
return;
m_queue.TransferTo(CurrentTarget(), walker.GetCurrentPosition());
if (!((m_id & CONSTRUCTED) || definiteLength))
BERDecodeError();
if (!definiteLength)
{
if (!(m_id & CONSTRUCTED))
BERDecodeError();
m_level++;
m_state = IDENTIFIER;
break;
}
m_state = BODY; // fall through
}
case BODY:
m_lengthRemaining -= m_queue.TransferTo(CurrentTarget(), m_lengthRemaining);
if (m_lengthRemaining == 0)
m_state = IDENTIFIER;
}
if (m_state == IDENTIFIER && m_level == 0)
{
// just finished processing a level 0 object
++m_nCurrentObject;
if (m_flags & PUT_MESSANGE_END_AFTER_EACH_OBJECT)
AttachedTransformation()->MessageEnd();
if (m_nCurrentObject == m_nObjects)
{
if (m_flags & PUT_MESSANGE_END_AFTER_ALL_OBJECTS)
AttachedTransformation()->MessageEnd();
if (m_flags & PUT_MESSANGE_SERIES_END_AFTER_ALL_OBJECTS)
AttachedTransformation()->MessageSeriesEnd();
m_queue.TransferAllTo(*AttachedTransformation());
return;
}
}
}
}
BERGeneralDecoder::BERGeneralDecoder(BufferedTransformation &inQueue, byte asnTag)
: m_inQueue(inQueue), m_finished(false)
{
Init(asnTag);
}
BERGeneralDecoder::BERGeneralDecoder(BERGeneralDecoder &inQueue, byte asnTag)
: m_inQueue(inQueue), m_finished(false)
{
Init(asnTag);
}
void BERGeneralDecoder::Init(byte asnTag)
{
byte b;
if (!m_inQueue.Get(b) || b != asnTag)
BERDecodeError();
if (!BERLengthDecode(m_inQueue, m_length, m_definiteLength))
BERDecodeError();
if (!m_definiteLength && !(asnTag & CONSTRUCTED))
BERDecodeError(); // cannot be primitive and have indefinite length
}
BERGeneralDecoder::~BERGeneralDecoder()
{
try // avoid throwing in constructor
{
if (!m_finished)
MessageEnd();
}
catch (...)
{
}
}
bool BERGeneralDecoder::EndReached() const
{
if (m_definiteLength)
return m_length == 0;
else
{ // check end-of-content octets
word16 i;
return (m_inQueue.PeekWord16(i)==2 && i==0);
}
}
byte BERGeneralDecoder::PeekByte() const
{
byte b;
if (!Peek(b))
BERDecodeError();
return b;
}
void BERGeneralDecoder::CheckByte(byte check)
{
byte b;
if (!Get(b) || b != check)
BERDecodeError();
}
void BERGeneralDecoder::MessageEnd()
{
m_finished = true;
if (m_definiteLength)
{
if (m_length != 0)
BERDecodeError();
}
else
{ // remove end-of-content octets
word16 i;
if (m_inQueue.GetWord16(i) != 2 || i != 0)
BERDecodeError();
}
}
size_t BERGeneralDecoder::TransferTo2(BufferedTransformation &target, lword &transferBytes, const std::string &channel, bool blocking)
{
if (m_definiteLength && transferBytes > m_length)
transferBytes = m_length;
size_t blockedBytes = m_inQueue.TransferTo2(target, transferBytes, channel, blocking);
ReduceLength(transferBytes);
return blockedBytes;
}
size_t BERGeneralDecoder::CopyRangeTo2(BufferedTransformation &target, lword &begin, lword end, const std::string &channel, bool blocking) const
{
if (m_definiteLength)
end = STDMIN(m_length, end);
return m_inQueue.CopyRangeTo2(target, begin, end, channel, blocking);
}
lword BERGeneralDecoder::ReduceLength(lword delta)
{
if (m_definiteLength)
{
if (m_length < delta)
BERDecodeError();
m_length -= delta;
}
return delta;
}
DERGeneralEncoder::DERGeneralEncoder(BufferedTransformation &outQueue, byte asnTag)
: m_outQueue(outQueue), m_finished(false), m_asnTag(asnTag)
{
}
DERGeneralEncoder::DERGeneralEncoder(DERGeneralEncoder &outQueue, byte asnTag)
: m_outQueue(outQueue), m_finished(false), m_asnTag(asnTag)
{
}
DERGeneralEncoder::~DERGeneralEncoder()
{
try // avoid throwing in constructor
{
if (!m_finished)
MessageEnd();
}
catch (...)
{
}
}
void DERGeneralEncoder::MessageEnd()
{
m_finished = true;
lword length = CurrentSize();
m_outQueue.Put(m_asnTag);
DERLengthEncode(m_outQueue, length);
TransferTo(m_outQueue);
}
// *************************************************************
void X509PublicKey::BERDecode(BufferedTransformation &bt)
{
BERSequenceDecoder subjectPublicKeyInfo(bt);
BERSequenceDecoder algorithm(subjectPublicKeyInfo);
GetAlgorithmID().BERDecodeAndCheck(algorithm);
bool parametersPresent = algorithm.EndReached() ? false : BERDecodeAlgorithmParameters(algorithm);
algorithm.MessageEnd();
BERGeneralDecoder subjectPublicKey(subjectPublicKeyInfo, BIT_STRING);
subjectPublicKey.CheckByte(0); // unused bits
BERDecodePublicKey(subjectPublicKey, parametersPresent, (size_t)subjectPublicKey.RemainingLength());
subjectPublicKey.MessageEnd();
subjectPublicKeyInfo.MessageEnd();
}
void X509PublicKey::DEREncode(BufferedTransformation &bt) const
{
DERSequenceEncoder subjectPublicKeyInfo(bt);
DERSequenceEncoder algorithm(subjectPublicKeyInfo);
GetAlgorithmID().DEREncode(algorithm);
DEREncodeAlgorithmParameters(algorithm);
algorithm.MessageEnd();
DERGeneralEncoder subjectPublicKey(subjectPublicKeyInfo, BIT_STRING);
subjectPublicKey.Put(0); // unused bits
DEREncodePublicKey(subjectPublicKey);
subjectPublicKey.MessageEnd();
subjectPublicKeyInfo.MessageEnd();
}
void PKCS8PrivateKey::BERDecode(BufferedTransformation &bt)
{
BERSequenceDecoder privateKeyInfo(bt);
word32 version;
BERDecodeUnsigned<word32>(privateKeyInfo, version, INTEGER, 0, 0); // check version
BERSequenceDecoder algorithm(privateKeyInfo);
GetAlgorithmID().BERDecodeAndCheck(algorithm);
bool parametersPresent = algorithm.EndReached() ? false : BERDecodeAlgorithmParameters(algorithm);
algorithm.MessageEnd();
BERGeneralDecoder octetString(privateKeyInfo, OCTET_STRING);
BERDecodePrivateKey(octetString, parametersPresent, (size_t)privateKeyInfo.RemainingLength());
octetString.MessageEnd();
if (!privateKeyInfo.EndReached())
BERDecodeOptionalAttributes(privateKeyInfo);
privateKeyInfo.MessageEnd();
}
void PKCS8PrivateKey::DEREncode(BufferedTransformation &bt) const
{
DERSequenceEncoder privateKeyInfo(bt);
DEREncodeUnsigned<word32>(privateKeyInfo, 0); // version
DERSequenceEncoder algorithm(privateKeyInfo);
GetAlgorithmID().DEREncode(algorithm);
DEREncodeAlgorithmParameters(algorithm);
algorithm.MessageEnd();
DERGeneralEncoder octetString(privateKeyInfo, OCTET_STRING);
DEREncodePrivateKey(octetString);
octetString.MessageEnd();
DEREncodeOptionalAttributes(privateKeyInfo);
privateKeyInfo.MessageEnd();
}
void PKCS8PrivateKey::BERDecodeOptionalAttributes(BufferedTransformation &bt)
{
DERReencode(bt, m_optionalAttributes);
}
void PKCS8PrivateKey::DEREncodeOptionalAttributes(BufferedTransformation &bt) const
{
m_optionalAttributes.CopyTo(bt);
}
NAMESPACE_END
#endif

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#ifndef CRYPTOPP_ASN_H
#define CRYPTOPP_ASN_H
#include "filters.h"
#include "queue.h"
#include <vector>
NAMESPACE_BEGIN(CryptoPP)
// these tags and flags are not complete
enum ASNTag
{
BOOLEAN = 0x01,
INTEGER = 0x02,
BIT_STRING = 0x03,
OCTET_STRING = 0x04,
TAG_NULL = 0x05,
OBJECT_IDENTIFIER = 0x06,
OBJECT_DESCRIPTOR = 0x07,
EXTERNAL = 0x08,
REAL = 0x09,
ENUMERATED = 0x0a,
UTF8_STRING = 0x0c,
SEQUENCE = 0x10,
SET = 0x11,
NUMERIC_STRING = 0x12,
PRINTABLE_STRING = 0x13,
T61_STRING = 0x14,
VIDEOTEXT_STRING = 0x15,
IA5_STRING = 0x16,
UTC_TIME = 0x17,
GENERALIZED_TIME = 0x18,
GRAPHIC_STRING = 0x19,
VISIBLE_STRING = 0x1a,
GENERAL_STRING = 0x1b
};
enum ASNIdFlag
{
UNIVERSAL = 0x00,
// DATA = 0x01,
// HEADER = 0x02,
CONSTRUCTED = 0x20,
APPLICATION = 0x40,
CONTEXT_SPECIFIC = 0x80,
PRIVATE = 0xc0
};
inline void BERDecodeError() {throw BERDecodeErr();}
class CRYPTOPP_DLL UnknownOID : public BERDecodeErr
{
public:
UnknownOID() : BERDecodeErr("BER decode error: unknown object identifier") {}
UnknownOID(const char *err) : BERDecodeErr(err) {}
};
// unsigned int DERLengthEncode(unsigned int length, byte *output=0);
CRYPTOPP_DLL size_t CRYPTOPP_API DERLengthEncode(BufferedTransformation &out, lword length);
// returns false if indefinite length
CRYPTOPP_DLL bool CRYPTOPP_API BERLengthDecode(BufferedTransformation &in, size_t &length);
CRYPTOPP_DLL void CRYPTOPP_API DEREncodeNull(BufferedTransformation &out);
CRYPTOPP_DLL void CRYPTOPP_API BERDecodeNull(BufferedTransformation &in);
CRYPTOPP_DLL size_t CRYPTOPP_API DEREncodeOctetString(BufferedTransformation &out, const byte *str, size_t strLen);
CRYPTOPP_DLL size_t CRYPTOPP_API DEREncodeOctetString(BufferedTransformation &out, const SecByteBlock &str);
CRYPTOPP_DLL size_t CRYPTOPP_API BERDecodeOctetString(BufferedTransformation &in, SecByteBlock &str);
CRYPTOPP_DLL size_t CRYPTOPP_API BERDecodeOctetString(BufferedTransformation &in, BufferedTransformation &str);
// for UTF8_STRING, PRINTABLE_STRING, and IA5_STRING
CRYPTOPP_DLL size_t CRYPTOPP_API DEREncodeTextString(BufferedTransformation &out, const std::string &str, byte asnTag);
CRYPTOPP_DLL size_t CRYPTOPP_API BERDecodeTextString(BufferedTransformation &in, std::string &str, byte asnTag);
CRYPTOPP_DLL size_t CRYPTOPP_API DEREncodeBitString(BufferedTransformation &out, const byte *str, size_t strLen, unsigned int unusedBits=0);
CRYPTOPP_DLL size_t CRYPTOPP_API BERDecodeBitString(BufferedTransformation &in, SecByteBlock &str, unsigned int &unusedBits);
// BER decode from source and DER reencode into dest
CRYPTOPP_DLL void CRYPTOPP_API DERReencode(BufferedTransformation &source, BufferedTransformation &dest);
//! Object Identifier
class CRYPTOPP_DLL OID
{
public:
OID() {}
OID(word32 v) : m_values(1, v) {}
OID(BufferedTransformation &bt) {BERDecode(bt);}
inline OID & operator+=(word32 rhs) {m_values.push_back(rhs); return *this;}
void DEREncode(BufferedTransformation &bt) const;
void BERDecode(BufferedTransformation &bt);
// throw BERDecodeErr() if decoded value doesn't equal this OID
void BERDecodeAndCheck(BufferedTransformation &bt) const;
std::vector<word32> m_values;
private:
static void EncodeValue(BufferedTransformation &bt, word32 v);
static size_t DecodeValue(BufferedTransformation &bt, word32 &v);
};
class EncodedObjectFilter : public Filter
{
public:
enum Flag {PUT_OBJECTS=1, PUT_MESSANGE_END_AFTER_EACH_OBJECT=2, PUT_MESSANGE_END_AFTER_ALL_OBJECTS=4, PUT_MESSANGE_SERIES_END_AFTER_ALL_OBJECTS=8};
EncodedObjectFilter(BufferedTransformation *attachment = NULL, unsigned int nObjects = 1, word32 flags = 0);
void Put(const byte *inString, size_t length);
unsigned int GetNumberOfCompletedObjects() const {return m_nCurrentObject;}
unsigned long GetPositionOfObject(unsigned int i) const {return m_positions[i];}
private:
BufferedTransformation & CurrentTarget();
word32 m_flags;
unsigned int m_nObjects, m_nCurrentObject, m_level;
std::vector<unsigned int> m_positions;
ByteQueue m_queue;
enum State {IDENTIFIER, LENGTH, BODY, TAIL, ALL_DONE} m_state;
byte m_id;
lword m_lengthRemaining;
};
//! BER General Decoder
class CRYPTOPP_DLL BERGeneralDecoder : public Store
{
public:
explicit BERGeneralDecoder(BufferedTransformation &inQueue, byte asnTag);
explicit BERGeneralDecoder(BERGeneralDecoder &inQueue, byte asnTag);
~BERGeneralDecoder();
bool IsDefiniteLength() const {return m_definiteLength;}
lword RemainingLength() const {assert(m_definiteLength); return m_length;}
bool EndReached() const;
byte PeekByte() const;
void CheckByte(byte b);
size_t TransferTo2(BufferedTransformation &target, lword &transferBytes, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true);
size_t CopyRangeTo2(BufferedTransformation &target, lword &begin, lword end=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true) const;
// call this to denote end of sequence
void MessageEnd();
protected:
BufferedTransformation &m_inQueue;
bool m_finished, m_definiteLength;
lword m_length;
private:
void Init(byte asnTag);
void StoreInitialize(const NameValuePairs &parameters) {assert(false);}
lword ReduceLength(lword delta);
};
//! DER General Encoder
class CRYPTOPP_DLL DERGeneralEncoder : public ByteQueue
{
public:
explicit DERGeneralEncoder(BufferedTransformation &outQueue, byte asnTag = SEQUENCE | CONSTRUCTED);
explicit DERGeneralEncoder(DERGeneralEncoder &outQueue, byte asnTag = SEQUENCE | CONSTRUCTED);
~DERGeneralEncoder();
// call this to denote end of sequence
void MessageEnd();
private:
BufferedTransformation &m_outQueue;
bool m_finished;
byte m_asnTag;
};
//! BER Sequence Decoder
class CRYPTOPP_DLL BERSequenceDecoder : public BERGeneralDecoder
{
public:
explicit BERSequenceDecoder(BufferedTransformation &inQueue, byte asnTag = SEQUENCE | CONSTRUCTED)
: BERGeneralDecoder(inQueue, asnTag) {}
explicit BERSequenceDecoder(BERSequenceDecoder &inQueue, byte asnTag = SEQUENCE | CONSTRUCTED)
: BERGeneralDecoder(inQueue, asnTag) {}
};
//! DER Sequence Encoder
class CRYPTOPP_DLL DERSequenceEncoder : public DERGeneralEncoder
{
public:
explicit DERSequenceEncoder(BufferedTransformation &outQueue, byte asnTag = SEQUENCE | CONSTRUCTED)
: DERGeneralEncoder(outQueue, asnTag) {}
explicit DERSequenceEncoder(DERSequenceEncoder &outQueue, byte asnTag = SEQUENCE | CONSTRUCTED)
: DERGeneralEncoder(outQueue, asnTag) {}
};
//! BER Set Decoder
class CRYPTOPP_DLL BERSetDecoder : public BERGeneralDecoder
{
public:
explicit BERSetDecoder(BufferedTransformation &inQueue, byte asnTag = SET | CONSTRUCTED)
: BERGeneralDecoder(inQueue, asnTag) {}
explicit BERSetDecoder(BERSetDecoder &inQueue, byte asnTag = SET | CONSTRUCTED)
: BERGeneralDecoder(inQueue, asnTag) {}
};
//! DER Set Encoder
class CRYPTOPP_DLL DERSetEncoder : public DERGeneralEncoder
{
public:
explicit DERSetEncoder(BufferedTransformation &outQueue, byte asnTag = SET | CONSTRUCTED)
: DERGeneralEncoder(outQueue, asnTag) {}
explicit DERSetEncoder(DERSetEncoder &outQueue, byte asnTag = SET | CONSTRUCTED)
: DERGeneralEncoder(outQueue, asnTag) {}
};
template <class T>
class ASNOptional : public member_ptr<T>
{
public:
void BERDecode(BERSequenceDecoder &seqDecoder, byte tag, byte mask = ~CONSTRUCTED)
{
byte b;
if (seqDecoder.Peek(b) && (b & mask) == tag)
reset(new T(seqDecoder));
}
void DEREncode(BufferedTransformation &out)
{
if (this->get() != NULL)
this->get()->DEREncode(out);
}
};
//! _
template <class BASE>
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE ASN1CryptoMaterial : public ASN1Object, public BASE
{
public:
void Save(BufferedTransformation &bt) const
{BEREncode(bt);}
void Load(BufferedTransformation &bt)
{BERDecode(bt);}
};
//! encodes/decodes subjectPublicKeyInfo
class CRYPTOPP_DLL X509PublicKey : public ASN1CryptoMaterial<PublicKey>
{
public:
void BERDecode(BufferedTransformation &bt);
void DEREncode(BufferedTransformation &bt) const;
virtual OID GetAlgorithmID() const =0;
virtual bool BERDecodeAlgorithmParameters(BufferedTransformation &bt)
{BERDecodeNull(bt); return false;}
virtual bool DEREncodeAlgorithmParameters(BufferedTransformation &bt) const
{DEREncodeNull(bt); return false;} // see RFC 2459, section 7.3.1
//! decode subjectPublicKey part of subjectPublicKeyInfo, without the BIT STRING header
virtual void BERDecodePublicKey(BufferedTransformation &bt, bool parametersPresent, size_t size) =0;
//! encode subjectPublicKey part of subjectPublicKeyInfo, without the BIT STRING header
virtual void DEREncodePublicKey(BufferedTransformation &bt) const =0;
};
//! encodes/decodes privateKeyInfo
class CRYPTOPP_DLL PKCS8PrivateKey : public ASN1CryptoMaterial<PrivateKey>
{
public:
void BERDecode(BufferedTransformation &bt);
void DEREncode(BufferedTransformation &bt) const;
virtual OID GetAlgorithmID() const =0;
virtual bool BERDecodeAlgorithmParameters(BufferedTransformation &bt)
{BERDecodeNull(bt); return false;}
virtual bool DEREncodeAlgorithmParameters(BufferedTransformation &bt) const
{DEREncodeNull(bt); return false;} // see RFC 2459, section 7.3.1
//! decode privateKey part of privateKeyInfo, without the OCTET STRING header
virtual void BERDecodePrivateKey(BufferedTransformation &bt, bool parametersPresent, size_t size) =0;
//! encode privateKey part of privateKeyInfo, without the OCTET STRING header
virtual void DEREncodePrivateKey(BufferedTransformation &bt) const =0;
//! decode optional attributes including context-specific tag
/*! /note default implementation stores attributes to be output in DEREncodeOptionalAttributes */
virtual void BERDecodeOptionalAttributes(BufferedTransformation &bt);
//! encode optional attributes including context-specific tag
virtual void DEREncodeOptionalAttributes(BufferedTransformation &bt) const;
protected:
ByteQueue m_optionalAttributes;
};
// ********************************************************
//! DER Encode Unsigned
/*! for INTEGER, BOOLEAN, and ENUM */
template <class T>
size_t DEREncodeUnsigned(BufferedTransformation &out, T w, byte asnTag = INTEGER)
{
byte buf[sizeof(w)+1];
unsigned int bc;
if (asnTag == BOOLEAN)
{
buf[sizeof(w)] = w ? 0xff : 0;
bc = 1;
}
else
{
buf[0] = 0;
for (unsigned int i=0; i<sizeof(w); i++)
buf[i+1] = byte(w >> (sizeof(w)-1-i)*8);
bc = sizeof(w);
while (bc > 1 && buf[sizeof(w)+1-bc] == 0)
--bc;
if (buf[sizeof(w)+1-bc] & 0x80)
++bc;
}
out.Put(asnTag);
size_t lengthBytes = DERLengthEncode(out, bc);
out.Put(buf+sizeof(w)+1-bc, bc);
return 1+lengthBytes+bc;
}
//! BER Decode Unsigned
// VC60 workaround: std::numeric_limits<T>::max conflicts with MFC max macro
// CW41 workaround: std::numeric_limits<T>::max causes a template error
template <class T>
void BERDecodeUnsigned(BufferedTransformation &in, T &w, byte asnTag = INTEGER,
T minValue = 0, T maxValue = 0xffffffff)
{
byte b;
if (!in.Get(b) || b != asnTag)
BERDecodeError();
size_t bc;
BERLengthDecode(in, bc);
SecByteBlock buf(bc);
if (bc != in.Get(buf, bc))
BERDecodeError();
const byte *ptr = buf;
while (bc > sizeof(w) && *ptr == 0)
{
bc--;
ptr++;
}
if (bc > sizeof(w))
BERDecodeError();
w = 0;
for (unsigned int i=0; i<bc; i++)
w = (w << 8) | ptr[i];
if (w < minValue || w > maxValue)
BERDecodeError();
}
inline bool operator==(const ::CryptoPP::OID &lhs, const ::CryptoPP::OID &rhs)
{return lhs.m_values == rhs.m_values;}
inline bool operator!=(const ::CryptoPP::OID &lhs, const ::CryptoPP::OID &rhs)
{return lhs.m_values != rhs.m_values;}
inline bool operator<(const ::CryptoPP::OID &lhs, const ::CryptoPP::OID &rhs)
{return std::lexicographical_compare(lhs.m_values.begin(), lhs.m_values.end(), rhs.m_values.begin(), rhs.m_values.end());}
inline ::CryptoPP::OID operator+(const ::CryptoPP::OID &lhs, unsigned long rhs)
{return ::CryptoPP::OID(lhs)+=rhs;}
NAMESPACE_END
#endif

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// authenc.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "authenc.h"
NAMESPACE_BEGIN(CryptoPP)
void AuthenticatedSymmetricCipherBase::AuthenticateData(const byte *input, size_t len)
{
unsigned int blockSize = AuthenticationBlockSize();
unsigned int &num = m_bufferedDataLength;
byte* data = m_buffer.begin();
if (num != 0) // process left over data
{
if (num+len >= blockSize)
{
memcpy(data+num, input, blockSize-num);
AuthenticateBlocks(data, blockSize);
input += (blockSize-num);
len -= (blockSize-num);
num = 0;
// drop through and do the rest
}
else
{
memcpy(data+num, input, len);
num += (unsigned int)len;
return;
}
}
// now process the input data in blocks of blockSize bytes and save the leftovers to m_data
if (len >= blockSize)
{
size_t leftOver = AuthenticateBlocks(input, len);
input += (len - leftOver);
len = leftOver;
}
memcpy(data, input, len);
num = (unsigned int)len;
}
void AuthenticatedSymmetricCipherBase::SetKey(const byte *userKey, size_t keylength, const NameValuePairs &params)
{
m_bufferedDataLength = 0;
m_state = State_Start;
SetKeyWithoutResync(userKey, keylength, params);
m_state = State_KeySet;
size_t length;
const byte *iv = GetIVAndThrowIfInvalid(params, length);
if (iv)
Resynchronize(iv, (int)length);
}
void AuthenticatedSymmetricCipherBase::Resynchronize(const byte *iv, int length)
{
if (m_state < State_KeySet)
throw BadState(AlgorithmName(), "Resynchronize", "key is set");
m_bufferedDataLength = 0;
m_totalHeaderLength = m_totalMessageLength = m_totalFooterLength = 0;
m_state = State_KeySet;
Resync(iv, this->ThrowIfInvalidIVLength(length));
m_state = State_IVSet;
}
void AuthenticatedSymmetricCipherBase::Update(const byte *input, size_t length)
{
if (length == 0)
return;
switch (m_state)
{
case State_Start:
case State_KeySet:
throw BadState(AlgorithmName(), "Update", "setting key and IV");
case State_IVSet:
AuthenticateData(input, length);
m_totalHeaderLength += length;
break;
case State_AuthUntransformed:
case State_AuthTransformed:
AuthenticateLastConfidentialBlock();
m_bufferedDataLength = 0;
m_state = State_AuthFooter;
// fall through
case State_AuthFooter:
AuthenticateData(input, length);
m_totalFooterLength += length;
break;
default:
assert(false);
}
}
void AuthenticatedSymmetricCipherBase::ProcessData(byte *outString, const byte *inString, size_t length)
{
m_totalMessageLength += length;
if (m_state >= State_IVSet && m_totalMessageLength > MaxMessageLength())
throw InvalidArgument(AlgorithmName() + ": message length exceeds maximum");
reswitch:
switch (m_state)
{
case State_Start:
case State_KeySet:
throw BadState(AlgorithmName(), "ProcessData", "setting key and IV");
case State_AuthFooter:
throw BadState(AlgorithmName(), "ProcessData was called after footer input has started");
case State_IVSet:
AuthenticateLastHeaderBlock();
m_bufferedDataLength = 0;
m_state = AuthenticationIsOnPlaintext()==IsForwardTransformation() ? State_AuthUntransformed : State_AuthTransformed;
goto reswitch;
case State_AuthUntransformed:
AuthenticateData(inString, length);
AccessSymmetricCipher().ProcessData(outString, inString, length);
break;
case State_AuthTransformed:
AccessSymmetricCipher().ProcessData(outString, inString, length);
AuthenticateData(outString, length);
break;
default:
assert(false);
}
}
void AuthenticatedSymmetricCipherBase::TruncatedFinal(byte *mac, size_t macSize)
{
if (m_totalHeaderLength > MaxHeaderLength())
throw InvalidArgument(AlgorithmName() + ": header length of " + IntToString(m_totalHeaderLength) + " exceeds the maximum of " + IntToString(MaxHeaderLength()));
if (m_totalFooterLength > MaxFooterLength())
{
if (MaxFooterLength() == 0)
throw InvalidArgument(AlgorithmName() + ": additional authenticated data (AAD) cannot be input after data to be encrypted or decrypted");
else
throw InvalidArgument(AlgorithmName() + ": footer length of " + IntToString(m_totalFooterLength) + " exceeds the maximum of " + IntToString(MaxFooterLength()));
}
switch (m_state)
{
case State_Start:
case State_KeySet:
throw BadState(AlgorithmName(), "TruncatedFinal", "setting key and IV");
case State_IVSet:
AuthenticateLastHeaderBlock();
m_bufferedDataLength = 0;
// fall through
case State_AuthUntransformed:
case State_AuthTransformed:
AuthenticateLastConfidentialBlock();
m_bufferedDataLength = 0;
// fall through
case State_AuthFooter:
AuthenticateLastFooterBlock(mac, macSize);
m_bufferedDataLength = 0;
break;
default:
assert(false);
}
m_state = State_KeySet;
}
NAMESPACE_END
#endif

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#ifndef CRYPTOPP_AUTHENC_H
#define CRYPTOPP_AUTHENC_H
#include "cryptlib.h"
#include "secblock.h"
NAMESPACE_BEGIN(CryptoPP)
//! .
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE AuthenticatedSymmetricCipherBase : public AuthenticatedSymmetricCipher
{
public:
AuthenticatedSymmetricCipherBase() : m_state(State_Start) {}
bool IsRandomAccess() const {return false;}
bool IsSelfInverting() const {return true;}
void UncheckedSetKey(const byte *,unsigned int,const CryptoPP::NameValuePairs &) {assert(false);}
void SetKey(const byte *userKey, size_t keylength, const NameValuePairs &params);
void Restart() {if (m_state > State_KeySet) m_state = State_KeySet;}
void Resynchronize(const byte *iv, int length=-1);
void Update(const byte *input, size_t length);
void ProcessData(byte *outString, const byte *inString, size_t length);
void TruncatedFinal(byte *mac, size_t macSize);
protected:
void AuthenticateData(const byte *data, size_t len);
const SymmetricCipher & GetSymmetricCipher() const {return const_cast<AuthenticatedSymmetricCipherBase *>(this)->AccessSymmetricCipher();};
virtual SymmetricCipher & AccessSymmetricCipher() =0;
virtual bool AuthenticationIsOnPlaintext() const =0;
virtual unsigned int AuthenticationBlockSize() const =0;
virtual void SetKeyWithoutResync(const byte *userKey, size_t keylength, const NameValuePairs &params) =0;
virtual void Resync(const byte *iv, size_t len) =0;
virtual size_t AuthenticateBlocks(const byte *data, size_t len) =0;
virtual void AuthenticateLastHeaderBlock() =0;
virtual void AuthenticateLastConfidentialBlock() {}
virtual void AuthenticateLastFooterBlock(byte *mac, size_t macSize) =0;
enum State {State_Start, State_KeySet, State_IVSet, State_AuthUntransformed, State_AuthTransformed, State_AuthFooter};
State m_state;
unsigned int m_bufferedDataLength;
lword m_totalHeaderLength, m_totalMessageLength, m_totalFooterLength;
AlignedSecByteBlock m_buffer;
};
NAMESPACE_END
#endif

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// base32.cpp - written and placed in the public domain by Frank Palazzolo, based on hex.cpp by Wei Dai
#include "pch.h"
#include "base32.h"
NAMESPACE_BEGIN(CryptoPP)
static const byte s_vecUpper[] = "ABCDEFGHIJKMNPQRSTUVWXYZ23456789";
static const byte s_vecLower[] = "abcdefghijkmnpqrstuvwxyz23456789";
void Base32Encoder::IsolatedInitialize(const NameValuePairs &parameters)
{
bool uppercase = parameters.GetValueWithDefault(Name::Uppercase(), true);
m_filter->Initialize(CombinedNameValuePairs(
parameters,
MakeParameters(Name::EncodingLookupArray(), uppercase ? &s_vecUpper[0] : &s_vecLower[0], false)(Name::Log2Base(), 5, true)));
}
void Base32Decoder::IsolatedInitialize(const NameValuePairs &parameters)
{
BaseN_Decoder::Initialize(CombinedNameValuePairs(
parameters,
MakeParameters(Name::DecodingLookupArray(), GetDefaultDecodingLookupArray(), false)(Name::Log2Base(), 5, true)));
}
const int *Base32Decoder::GetDefaultDecodingLookupArray()
{
static volatile bool s_initialized = false;
static int s_array[256];
if (!s_initialized)
{
InitializeDecodingLookupArray(s_array, s_vecUpper, 32, true);
s_initialized = true;
}
return s_array;
}
NAMESPACE_END

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lib/cryptopp/base32.h
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#ifndef CRYPTOPP_BASE32_H
#define CRYPTOPP_BASE32_H
#include "basecode.h"
NAMESPACE_BEGIN(CryptoPP)
//! Converts given data to base 32, the default code is based on draft-ietf-idn-dude-02.txt
/*! To specify alternative code, call Initialize() with EncodingLookupArray parameter. */
class Base32Encoder : public SimpleProxyFilter
{
public:
Base32Encoder(BufferedTransformation *attachment = NULL, bool uppercase = true, int outputGroupSize = 0, const std::string &separator = ":", const std::string &terminator = "")
: SimpleProxyFilter(new BaseN_Encoder(new Grouper), attachment)
{
IsolatedInitialize(MakeParameters(Name::Uppercase(), uppercase)(Name::GroupSize(), outputGroupSize)(Name::Separator(), ConstByteArrayParameter(separator)));
}
void IsolatedInitialize(const NameValuePairs &parameters);
};
//! Decode base 32 data back to bytes, the default code is based on draft-ietf-idn-dude-02.txt
/*! To specify alternative code, call Initialize() with DecodingLookupArray parameter. */
class Base32Decoder : public BaseN_Decoder
{
public:
Base32Decoder(BufferedTransformation *attachment = NULL)
: BaseN_Decoder(GetDefaultDecodingLookupArray(), 5, attachment) {}
void IsolatedInitialize(const NameValuePairs &parameters);
private:
static const int * CRYPTOPP_API GetDefaultDecodingLookupArray();
};
NAMESPACE_END
#endif

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lib/cryptopp/base64.cpp
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// base64.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#include "base64.h"
NAMESPACE_BEGIN(CryptoPP)
static const byte s_vec[] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
static const byte s_padding = '=';
void Base64Encoder::IsolatedInitialize(const NameValuePairs &parameters)
{
bool insertLineBreaks = parameters.GetValueWithDefault(Name::InsertLineBreaks(), true);
int maxLineLength = parameters.GetIntValueWithDefault(Name::MaxLineLength(), 72);
const char *lineBreak = insertLineBreaks ? "\n" : "";
m_filter->Initialize(CombinedNameValuePairs(
parameters,
MakeParameters(Name::EncodingLookupArray(), &s_vec[0], false)
(Name::PaddingByte(), s_padding)
(Name::GroupSize(), insertLineBreaks ? maxLineLength : 0)
(Name::Separator(), ConstByteArrayParameter(lineBreak))
(Name::Terminator(), ConstByteArrayParameter(lineBreak))
(Name::Log2Base(), 6, true)));
}
const int *Base64Decoder::GetDecodingLookupArray()
{
static volatile bool s_initialized = false;
static int s_array[256];
if (!s_initialized)
{
InitializeDecodingLookupArray(s_array, s_vec, 64, false);
s_initialized = true;
}
return s_array;
}
NAMESPACE_END

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lib/cryptopp/base64.h
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#ifndef CRYPTOPP_BASE64_H
#define CRYPTOPP_BASE64_H
#include "basecode.h"
NAMESPACE_BEGIN(CryptoPP)
//! Base64 Encoder Class
class Base64Encoder : public SimpleProxyFilter
{
public:
Base64Encoder(BufferedTransformation *attachment = NULL, bool insertLineBreaks = true, int maxLineLength = 72)
: SimpleProxyFilter(new BaseN_Encoder(new Grouper), attachment)
{
IsolatedInitialize(MakeParameters(Name::InsertLineBreaks(), insertLineBreaks)(Name::MaxLineLength(), maxLineLength));
}
void IsolatedInitialize(const NameValuePairs &parameters);
};
//! Base64 Decoder Class
class Base64Decoder : public BaseN_Decoder
{
public:
Base64Decoder(BufferedTransformation *attachment = NULL)
: BaseN_Decoder(GetDecodingLookupArray(), 6, attachment) {}
void IsolatedInitialize(const NameValuePairs &parameters) {}
private:
static const int * CRYPTOPP_API GetDecodingLookupArray();
};
NAMESPACE_END
#endif

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// basecode.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "basecode.h"
#include "fltrimpl.h"
#include <ctype.h>
NAMESPACE_BEGIN(CryptoPP)
void BaseN_Encoder::IsolatedInitialize(const NameValuePairs &parameters)
{
parameters.GetRequiredParameter("BaseN_Encoder", Name::EncodingLookupArray(), m_alphabet);
parameters.GetRequiredIntParameter("BaseN_Encoder", Name::Log2Base(), m_bitsPerChar);
if (m_bitsPerChar <= 0 || m_bitsPerChar >= 8)
throw InvalidArgument("BaseN_Encoder: Log2Base must be between 1 and 7 inclusive");
byte padding;
bool pad;
if (parameters.GetValue(Name::PaddingByte(), padding))
pad = parameters.GetValueWithDefault(Name::Pad(), true);
else
pad = false;
m_padding = pad ? padding : -1;
m_bytePos = m_bitPos = 0;
int i = 8;
while (i%m_bitsPerChar != 0)
i += 8;
m_outputBlockSize = i/m_bitsPerChar;
m_outBuf.New(m_outputBlockSize);
}
size_t BaseN_Encoder::Put2(const byte *begin, size_t length, int messageEnd, bool blocking)
{
FILTER_BEGIN;
while (m_inputPosition < length)
{
if (m_bytePos == 0)
memset(m_outBuf, 0, m_outputBlockSize);
{
unsigned int b = begin[m_inputPosition++], bitsLeftInSource = 8;
while (true)
{
assert(m_bitPos < m_bitsPerChar);
unsigned int bitsLeftInTarget = m_bitsPerChar-m_bitPos;
m_outBuf[m_bytePos] |= b >> (8-bitsLeftInTarget);
if (bitsLeftInSource >= bitsLeftInTarget)
{
m_bitPos = 0;
++m_bytePos;
bitsLeftInSource -= bitsLeftInTarget;
if (bitsLeftInSource == 0)
break;
b <<= bitsLeftInTarget;
b &= 0xff;
}
else
{
m_bitPos += bitsLeftInSource;
break;
}
}
}
assert(m_bytePos <= m_outputBlockSize);
if (m_bytePos == m_outputBlockSize)
{
int i;
for (i=0; i<m_bytePos; i++)
{
assert(m_outBuf[i] < (1 << m_bitsPerChar));
m_outBuf[i] = m_alphabet[m_outBuf[i]];
}
FILTER_OUTPUT(1, m_outBuf, m_outputBlockSize, 0);
m_bytePos = m_bitPos = 0;
}
}
if (messageEnd)
{
if (m_bitPos > 0)
++m_bytePos;
int i;
for (i=0; i<m_bytePos; i++)
m_outBuf[i] = m_alphabet[m_outBuf[i]];
if (m_padding != -1 && m_bytePos > 0)
{
memset(m_outBuf+m_bytePos, m_padding, m_outputBlockSize-m_bytePos);
m_bytePos = m_outputBlockSize;
}
FILTER_OUTPUT(2, m_outBuf, m_bytePos, messageEnd);
m_bytePos = m_bitPos = 0;
}
FILTER_END_NO_MESSAGE_END;
}
void BaseN_Decoder::IsolatedInitialize(const NameValuePairs &parameters)
{
parameters.GetRequiredParameter("BaseN_Decoder", Name::DecodingLookupArray(), m_lookup);
parameters.GetRequiredIntParameter("BaseN_Decoder", Name::Log2Base(), m_bitsPerChar);
if (m_bitsPerChar <= 0 || m_bitsPerChar >= 8)
throw InvalidArgument("BaseN_Decoder: Log2Base must be between 1 and 7 inclusive");
m_bytePos = m_bitPos = 0;
int i = m_bitsPerChar;
while (i%8 != 0)
i += m_bitsPerChar;
m_outputBlockSize = i/8;
m_outBuf.New(m_outputBlockSize);
}
size_t BaseN_Decoder::Put2(const byte *begin, size_t length, int messageEnd, bool blocking)
{
FILTER_BEGIN;
while (m_inputPosition < length)
{
unsigned int value;
value = m_lookup[begin[m_inputPosition++]];
if (value >= 256)
continue;
if (m_bytePos == 0 && m_bitPos == 0)
memset(m_outBuf, 0, m_outputBlockSize);
{
int newBitPos = m_bitPos + m_bitsPerChar;
if (newBitPos <= 8)
m_outBuf[m_bytePos] |= value << (8-newBitPos);
else
{
m_outBuf[m_bytePos] |= value >> (newBitPos-8);
m_outBuf[m_bytePos+1] |= value << (16-newBitPos);
}
m_bitPos = newBitPos;
while (m_bitPos >= 8)
{
m_bitPos -= 8;
++m_bytePos;
}
}
if (m_bytePos == m_outputBlockSize)
{
FILTER_OUTPUT(1, m_outBuf, m_outputBlockSize, 0);
m_bytePos = m_bitPos = 0;
}
}
if (messageEnd)
{
FILTER_OUTPUT(2, m_outBuf, m_bytePos, messageEnd);
m_bytePos = m_bitPos = 0;
}
FILTER_END_NO_MESSAGE_END;
}
void BaseN_Decoder::InitializeDecodingLookupArray(int *lookup, const byte *alphabet, unsigned int base, bool caseInsensitive)
{
std::fill(lookup, lookup+256, -1);
for (unsigned int i=0; i<base; i++)
{
if (caseInsensitive && isalpha(alphabet[i]))
{
assert(lookup[toupper(alphabet[i])] == -1);
lookup[toupper(alphabet[i])] = i;
assert(lookup[tolower(alphabet[i])] == -1);
lookup[tolower(alphabet[i])] = i;
}
else
{
assert(lookup[alphabet[i]] == -1);
lookup[alphabet[i]] = i;
}
}
}
void Grouper::IsolatedInitialize(const NameValuePairs &parameters)
{
m_groupSize = parameters.GetIntValueWithDefault(Name::GroupSize(), 0);
ConstByteArrayParameter separator, terminator;
if (m_groupSize)
parameters.GetRequiredParameter("Grouper", Name::Separator(), separator);
else
parameters.GetValue(Name::Separator(), separator);
parameters.GetValue(Name::Terminator(), terminator);
m_separator.Assign(separator.begin(), separator.size());
m_terminator.Assign(terminator.begin(), terminator.size());
m_counter = 0;
}
size_t Grouper::Put2(const byte *begin, size_t length, int messageEnd, bool blocking)
{
FILTER_BEGIN;
if (m_groupSize)
{
while (m_inputPosition < length)
{
if (m_counter == m_groupSize)
{
FILTER_OUTPUT(1, m_separator, m_separator.size(), 0);
m_counter = 0;
}
size_t len;
FILTER_OUTPUT2(2, len = STDMIN(length-m_inputPosition, m_groupSize-m_counter),
begin+m_inputPosition, len, 0);
m_inputPosition += len;
m_counter += len;
}
}
else
FILTER_OUTPUT(3, begin, length, 0);
if (messageEnd)
{
FILTER_OUTPUT(4, m_terminator, m_terminator.size(), messageEnd);
m_counter = 0;
}
FILTER_END_NO_MESSAGE_END
}
NAMESPACE_END
#endif

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lib/cryptopp/basecode.h
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#ifndef CRYPTOPP_BASECODE_H
#define CRYPTOPP_BASECODE_H
#include "filters.h"
#include "algparam.h"
#include "argnames.h"
NAMESPACE_BEGIN(CryptoPP)
//! base n encoder, where n is a power of 2
class CRYPTOPP_DLL BaseN_Encoder : public Unflushable<Filter>
{
public:
BaseN_Encoder(BufferedTransformation *attachment=NULL)
{Detach(attachment);}
BaseN_Encoder(const byte *alphabet, int log2base, BufferedTransformation *attachment=NULL, int padding=-1)
{
Detach(attachment);
IsolatedInitialize(MakeParameters(Name::EncodingLookupArray(), alphabet)
(Name::Log2Base(), log2base)
(Name::Pad(), padding != -1)
(Name::PaddingByte(), byte(padding)));
}
void IsolatedInitialize(const NameValuePairs &parameters);
size_t Put2(const byte *begin, size_t length, int messageEnd, bool blocking);
private:
const byte *m_alphabet;
int m_padding, m_bitsPerChar, m_outputBlockSize;
int m_bytePos, m_bitPos;
SecByteBlock m_outBuf;
};
//! base n decoder, where n is a power of 2
class CRYPTOPP_DLL BaseN_Decoder : public Unflushable<Filter>
{
public:
BaseN_Decoder(BufferedTransformation *attachment=NULL)
{Detach(attachment);}
BaseN_Decoder(const int *lookup, int log2base, BufferedTransformation *attachment=NULL)
{
Detach(attachment);
IsolatedInitialize(MakeParameters(Name::DecodingLookupArray(), lookup)(Name::Log2Base(), log2base));
}
void IsolatedInitialize(const NameValuePairs &parameters);
size_t Put2(const byte *begin, size_t length, int messageEnd, bool blocking);
static void CRYPTOPP_API InitializeDecodingLookupArray(int *lookup, const byte *alphabet, unsigned int base, bool caseInsensitive);
private:
const int *m_lookup;
int m_padding, m_bitsPerChar, m_outputBlockSize;
int m_bytePos, m_bitPos;
SecByteBlock m_outBuf;
};
//! filter that breaks input stream into groups of fixed size
class CRYPTOPP_DLL Grouper : public Bufferless<Filter>
{
public:
Grouper(BufferedTransformation *attachment=NULL)
{Detach(attachment);}
Grouper(int groupSize, const std::string &separator, const std::string &terminator, BufferedTransformation *attachment=NULL)
{
Detach(attachment);
IsolatedInitialize(MakeParameters(Name::GroupSize(), groupSize)
(Name::Separator(), ConstByteArrayParameter(separator))
(Name::Terminator(), ConstByteArrayParameter(terminator)));
}
void IsolatedInitialize(const NameValuePairs &parameters);
size_t Put2(const byte *begin, size_t length, int messageEnd, bool blocking);
private:
SecByteBlock m_separator, m_terminator;
size_t m_groupSize, m_counter;
};
NAMESPACE_END
#endif

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#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "cbcmac.h"
NAMESPACE_BEGIN(CryptoPP)
void CBC_MAC_Base::UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs &params)
{
AccessCipher().SetKey(key, length, params);
m_reg.CleanNew(AccessCipher().BlockSize());
m_counter = 0;
}
void CBC_MAC_Base::Update(const byte *input, size_t length)
{
unsigned int blockSize = AccessCipher().BlockSize();
while (m_counter && length)
{
m_reg[m_counter++] ^= *input++;
if (m_counter == blockSize)
ProcessBuf();
length--;
}
if (length >= blockSize)
{
size_t leftOver = AccessCipher().AdvancedProcessBlocks(m_reg, input, m_reg, length, BlockTransformation::BT_DontIncrementInOutPointers|BlockTransformation::BT_XorInput);
input += (length - leftOver);
length = leftOver;
}
while (length--)
{
m_reg[m_counter++] ^= *input++;
if (m_counter == blockSize)
ProcessBuf();
}
}
void CBC_MAC_Base::TruncatedFinal(byte *mac, size_t size)
{
ThrowIfInvalidTruncatedSize(size);
if (m_counter)
ProcessBuf();
memcpy(mac, m_reg, size);
memset(m_reg, 0, AccessCipher().BlockSize());
}
void CBC_MAC_Base::ProcessBuf()
{
AccessCipher().ProcessBlock(m_reg);
m_counter = 0;
}
NAMESPACE_END
#endif

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#ifndef CRYPTOPP_CBCMAC_H
#define CRYPTOPP_CBCMAC_H
#include "seckey.h"
#include "secblock.h"
NAMESPACE_BEGIN(CryptoPP)
//! _
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE CBC_MAC_Base : public MessageAuthenticationCode
{
public:
CBC_MAC_Base() {}
void UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs &params);
void Update(const byte *input, size_t length);
void TruncatedFinal(byte *mac, size_t size);
unsigned int DigestSize() const {return const_cast<CBC_MAC_Base*>(this)->AccessCipher().BlockSize();}
protected:
virtual BlockCipher & AccessCipher() =0;
private:
void ProcessBuf();
SecByteBlock m_reg;
unsigned int m_counter;
};
//! <a href="http://www.weidai.com/scan-mirror/mac.html#CBC-MAC">CBC-MAC</a>
/*! Compatible with FIPS 113. T should be a class derived from BlockCipherDocumentation.
Secure only for fixed length messages. For variable length messages use CMAC or DMAC.
*/
template <class T>
class CBC_MAC : public MessageAuthenticationCodeImpl<CBC_MAC_Base, CBC_MAC<T> >, public SameKeyLengthAs<T>
{
public:
CBC_MAC() {}
CBC_MAC(const byte *key, size_t length=SameKeyLengthAs<T>::DEFAULT_KEYLENGTH)
{this->SetKey(key, length);}
static std::string StaticAlgorithmName() {return std::string("CBC-MAC(") + T::StaticAlgorithmName() + ")";}
private:
BlockCipher & AccessCipher() {return m_cipher;}
typename T::Encryption m_cipher;
};
NAMESPACE_END
#endif

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// ccm.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "ccm.h"
NAMESPACE_BEGIN(CryptoPP)
void CCM_Base::SetKeyWithoutResync(const byte *userKey, size_t keylength, const NameValuePairs &params)
{
BlockCipher &blockCipher = AccessBlockCipher();
blockCipher.SetKey(userKey, keylength, params);
if (blockCipher.BlockSize() != REQUIRED_BLOCKSIZE)
throw InvalidArgument(AlgorithmName() + ": block size of underlying block cipher is not 16");
m_digestSize = params.GetIntValueWithDefault(Name::DigestSize(), DefaultDigestSize());
if (m_digestSize % 2 > 0 || m_digestSize < 4 || m_digestSize > 16)
throw InvalidArgument(AlgorithmName() + ": DigestSize must be 4, 6, 8, 10, 12, 14, or 16");
m_buffer.Grow(2*REQUIRED_BLOCKSIZE);
m_L = 8;
}
void CCM_Base::Resync(const byte *iv, size_t len)
{
BlockCipher &cipher = AccessBlockCipher();
m_L = REQUIRED_BLOCKSIZE-1-(int)len;
assert(m_L >= 2);
if (m_L > 8)
m_L = 8;
m_buffer[0] = byte(m_L-1); // flag
memcpy(m_buffer+1, iv, len);
memset(m_buffer+1+len, 0, REQUIRED_BLOCKSIZE-1-len);
if (m_state >= State_IVSet)
m_ctr.Resynchronize(m_buffer, REQUIRED_BLOCKSIZE);
else
m_ctr.SetCipherWithIV(cipher, m_buffer);
m_ctr.Seek(REQUIRED_BLOCKSIZE);
m_aadLength = 0;
m_messageLength = 0;
}
void CCM_Base::UncheckedSpecifyDataLengths(lword headerLength, lword messageLength, lword footerLength)
{
if (m_state != State_IVSet)
throw BadState(AlgorithmName(), "SpecifyDataLengths", "or after State_IVSet");
m_aadLength = headerLength;
m_messageLength = messageLength;
byte *cbcBuffer = CBC_Buffer();
const BlockCipher &cipher = GetBlockCipher();
cbcBuffer[0] = byte(64*(headerLength>0) + 8*((m_digestSize-2)/2) + (m_L-1)); // flag
PutWord<word64>(true, BIG_ENDIAN_ORDER, cbcBuffer+REQUIRED_BLOCKSIZE-8, m_messageLength);
memcpy(cbcBuffer+1, m_buffer+1, REQUIRED_BLOCKSIZE-1-m_L);
cipher.ProcessBlock(cbcBuffer);
if (headerLength>0)
{
assert(m_bufferedDataLength == 0);
if (headerLength < ((1<<16) - (1<<8)))
{
PutWord<word16>(true, BIG_ENDIAN_ORDER, m_buffer, (word16)headerLength);
m_bufferedDataLength = 2;
}
else if (headerLength < (W64LIT(1)<<32))
{
m_buffer[0] = 0xff;
m_buffer[1] = 0xfe;
PutWord<word32>(false, BIG_ENDIAN_ORDER, m_buffer+2, (word32)headerLength);
m_bufferedDataLength = 6;
}
else
{
m_buffer[0] = 0xff;
m_buffer[1] = 0xff;
PutWord<word64>(false, BIG_ENDIAN_ORDER, m_buffer+2, headerLength);
m_bufferedDataLength = 10;
}
}
}
size_t CCM_Base::AuthenticateBlocks(const byte *data, size_t len)
{
byte *cbcBuffer = CBC_Buffer();
const BlockCipher &cipher = GetBlockCipher();
return cipher.AdvancedProcessBlocks(cbcBuffer, data, cbcBuffer, len, BlockTransformation::BT_DontIncrementInOutPointers|BlockTransformation::BT_XorInput);
}
void CCM_Base::AuthenticateLastHeaderBlock()
{
byte *cbcBuffer = CBC_Buffer();
const BlockCipher &cipher = GetBlockCipher();
if (m_aadLength != m_totalHeaderLength)
throw InvalidArgument(AlgorithmName() + ": header length doesn't match that given in SpecifyDataLengths");
if (m_bufferedDataLength > 0)
{
xorbuf(cbcBuffer, m_buffer, m_bufferedDataLength);
cipher.ProcessBlock(cbcBuffer);
m_bufferedDataLength = 0;
}
}
void CCM_Base::AuthenticateLastConfidentialBlock()
{
byte *cbcBuffer = CBC_Buffer();
const BlockCipher &cipher = GetBlockCipher();
if (m_messageLength != m_totalMessageLength)
throw InvalidArgument(AlgorithmName() + ": message length doesn't match that given in SpecifyDataLengths");
if (m_bufferedDataLength > 0)
{
xorbuf(cbcBuffer, m_buffer, m_bufferedDataLength);
cipher.ProcessBlock(cbcBuffer);
m_bufferedDataLength = 0;
}
}
void CCM_Base::AuthenticateLastFooterBlock(byte *mac, size_t macSize)
{
m_ctr.Seek(0);
m_ctr.ProcessData(mac, CBC_Buffer(), macSize);
}
NAMESPACE_END
#endif

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#ifndef CRYPTOPP_CCM_H
#define CRYPTOPP_CCM_H
#include "authenc.h"
#include "modes.h"
NAMESPACE_BEGIN(CryptoPP)
//! .
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE CCM_Base : public AuthenticatedSymmetricCipherBase
{
public:
CCM_Base()
: m_digestSize(0), m_L(0) {}
// AuthenticatedSymmetricCipher
std::string AlgorithmName() const
{return GetBlockCipher().AlgorithmName() + std::string("/CCM");}
size_t MinKeyLength() const
{return GetBlockCipher().MinKeyLength();}
size_t MaxKeyLength() const
{return GetBlockCipher().MaxKeyLength();}
size_t DefaultKeyLength() const
{return GetBlockCipher().DefaultKeyLength();}
size_t GetValidKeyLength(size_t n) const
{return GetBlockCipher().GetValidKeyLength(n);}
bool IsValidKeyLength(size_t n) const
{return GetBlockCipher().IsValidKeyLength(n);}
unsigned int OptimalDataAlignment() const
{return GetBlockCipher().OptimalDataAlignment();}
IV_Requirement IVRequirement() const
{return UNIQUE_IV;}
unsigned int IVSize() const
{return 8;}
unsigned int MinIVLength() const
{return 7;}
unsigned int MaxIVLength() const
{return 13;}
unsigned int DigestSize() const
{return m_digestSize;}
lword MaxHeaderLength() const
{return W64LIT(0)-1;}
lword MaxMessageLength() const
{return m_L<8 ? (W64LIT(1)<<(8*m_L))-1 : W64LIT(0)-1;}
bool NeedsPrespecifiedDataLengths() const
{return true;}
void UncheckedSpecifyDataLengths(lword headerLength, lword messageLength, lword footerLength);
protected:
// AuthenticatedSymmetricCipherBase
bool AuthenticationIsOnPlaintext() const
{return true;}
unsigned int AuthenticationBlockSize() const
{return GetBlockCipher().BlockSize();}
void SetKeyWithoutResync(const byte *userKey, size_t keylength, const NameValuePairs &params);
void Resync(const byte *iv, size_t len);
size_t AuthenticateBlocks(const byte *data, size_t len);
void AuthenticateLastHeaderBlock();
void AuthenticateLastConfidentialBlock();
void AuthenticateLastFooterBlock(byte *mac, size_t macSize);
SymmetricCipher & AccessSymmetricCipher() {return m_ctr;}
virtual BlockCipher & AccessBlockCipher() =0;
virtual int DefaultDigestSize() const =0;
const BlockCipher & GetBlockCipher() const {return const_cast<CCM_Base *>(this)->AccessBlockCipher();};
byte *CBC_Buffer() {return m_buffer+REQUIRED_BLOCKSIZE;}
enum {REQUIRED_BLOCKSIZE = 16};
int m_digestSize, m_L;
word64 m_messageLength, m_aadLength;
CTR_Mode_ExternalCipher::Encryption m_ctr;
};
//! .
template <class T_BlockCipher, int T_DefaultDigestSize, bool T_IsEncryption>
class CCM_Final : public CCM_Base
{
public:
static std::string StaticAlgorithmName()
{return T_BlockCipher::StaticAlgorithmName() + std::string("/CCM");}
bool IsForwardTransformation() const
{return T_IsEncryption;}
private:
BlockCipher & AccessBlockCipher() {return m_cipher;}
int DefaultDigestSize() const {return T_DefaultDigestSize;}
typename T_BlockCipher::Encryption m_cipher;
};
/// <a href="http://www.cryptolounge.org/wiki/CCM">CCM</a>
template <class T_BlockCipher, int T_DefaultDigestSize = 16>
struct CCM : public AuthenticatedSymmetricCipherDocumentation
{
typedef CCM_Final<T_BlockCipher, T_DefaultDigestSize, true> Encryption;
typedef CCM_Final<T_BlockCipher, T_DefaultDigestSize, false> Decryption;
};
NAMESPACE_END
#endif

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// channels.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "channels.h"
NAMESPACE_BEGIN(CryptoPP)
USING_NAMESPACE(std)
#if 0
void MessageSwitch::AddDefaultRoute(BufferedTransformation &destination, const std::string &channel)
{
m_defaultRoutes.push_back(Route(&destination, channel));
}
void MessageSwitch::AddRoute(unsigned int begin, unsigned int end, BufferedTransformation &destination, const std::string &channel)
{
RangeRoute route(begin, end, Route(&destination, channel));
RouteList::iterator it = upper_bound(m_routes.begin(), m_routes.end(), route);
m_routes.insert(it, route);
}
/*
class MessageRouteIterator
{
public:
typedef MessageSwitch::RouteList::const_iterator RouteIterator;
typedef MessageSwitch::DefaultRouteList::const_iterator DefaultIterator;
bool m_useDefault;
RouteIterator m_itRouteCurrent, m_itRouteEnd;
DefaultIterator m_itDefaultCurrent, m_itDefaultEnd;
MessageRouteIterator(MessageSwitch &ms, const std::string &channel)
: m_channel(channel)
{
pair<MapIterator, MapIterator> range = cs.m_routeMap.equal_range(channel);
if (range.first == range.second)
{
m_useDefault = true;
m_itListCurrent = cs.m_defaultRoutes.begin();
m_itListEnd = cs.m_defaultRoutes.end();
}
else
{
m_useDefault = false;
m_itMapCurrent = range.first;
m_itMapEnd = range.second;
}
}
bool End() const
{
return m_useDefault ? m_itListCurrent == m_itListEnd : m_itMapCurrent == m_itMapEnd;
}
void Next()
{
if (m_useDefault)
++m_itListCurrent;
else
++m_itMapCurrent;
}
BufferedTransformation & Destination()
{
return m_useDefault ? *m_itListCurrent->first : *m_itMapCurrent->second.first;
}
const std::string & Message()
{
if (m_useDefault)
return m_itListCurrent->second.get() ? *m_itListCurrent->second.get() : m_channel;
else
return m_itMapCurrent->second.second;
}
};
void MessageSwitch::Put(byte inByte);
void MessageSwitch::Put(const byte *inString, unsigned int length);
void MessageSwitch::Flush(bool completeFlush, int propagation=-1);
void MessageSwitch::MessageEnd(int propagation=-1);
void MessageSwitch::PutMessageEnd(const byte *inString, unsigned int length, int propagation=-1);
void MessageSwitch::MessageSeriesEnd(int propagation=-1);
*/
#endif
//
// ChannelRouteIterator
//////////////////////////
void ChannelRouteIterator::Reset(const std::string &channel)
{
m_channel = channel;
pair<MapIterator, MapIterator> range = m_cs.m_routeMap.equal_range(channel);
if (range.first == range.second)
{
m_useDefault = true;
m_itListCurrent = m_cs.m_defaultRoutes.begin();
m_itListEnd = m_cs.m_defaultRoutes.end();
}
else
{
m_useDefault = false;
m_itMapCurrent = range.first;
m_itMapEnd = range.second;
}
}
bool ChannelRouteIterator::End() const
{
return m_useDefault ? m_itListCurrent == m_itListEnd : m_itMapCurrent == m_itMapEnd;
}
void ChannelRouteIterator::Next()
{
if (m_useDefault)
++m_itListCurrent;
else
++m_itMapCurrent;
}
BufferedTransformation & ChannelRouteIterator::Destination()
{
return m_useDefault ? *m_itListCurrent->first : *m_itMapCurrent->second.first;
}
const std::string & ChannelRouteIterator::Channel()
{
if (m_useDefault)
return m_itListCurrent->second.get() ? *m_itListCurrent->second.get() : m_channel;
else
return m_itMapCurrent->second.second;
}
//
// ChannelSwitch
///////////////////
size_t ChannelSwitch::ChannelPut2(const std::string &channel, const byte *begin, size_t length, int messageEnd, bool blocking)
{
if (m_blocked)
{
m_blocked = false;
goto WasBlocked;
}
m_it.Reset(channel);
while (!m_it.End())
{
WasBlocked:
if (m_it.Destination().ChannelPut2(m_it.Channel(), begin, length, messageEnd, blocking))
{
m_blocked = true;
return 1;
}
m_it.Next();
}
return 0;
}
void ChannelSwitch::IsolatedInitialize(const NameValuePairs &parameters/* =g_nullNameValuePairs */)
{
m_routeMap.clear();
m_defaultRoutes.clear();
m_blocked = false;
}
bool ChannelSwitch::ChannelFlush(const std::string &channel, bool completeFlush, int propagation, bool blocking)
{
if (m_blocked)
{
m_blocked = false;
goto WasBlocked;
}
m_it.Reset(channel);
while (!m_it.End())
{
WasBlocked:
if (m_it.Destination().ChannelFlush(m_it.Channel(), completeFlush, propagation, blocking))
{
m_blocked = true;
return true;
}
m_it.Next();
}
return false;
}
bool ChannelSwitch::ChannelMessageSeriesEnd(const std::string &channel, int propagation, bool blocking)
{
if (m_blocked)
{
m_blocked = false;
goto WasBlocked;
}
m_it.Reset(channel);
while (!m_it.End())
{
WasBlocked:
if (m_it.Destination().ChannelMessageSeriesEnd(m_it.Channel(), propagation))
{
m_blocked = true;
return true;
}
m_it.Next();
}
return false;
}
byte * ChannelSwitch::ChannelCreatePutSpace(const std::string &channel, size_t &size)
{
m_it.Reset(channel);
if (!m_it.End())
{
BufferedTransformation &target = m_it.Destination();
const std::string &channel = m_it.Channel();
m_it.Next();
if (m_it.End()) // there is only one target channel
return target.ChannelCreatePutSpace(channel, size);
}
size = 0;
return NULL;
}
size_t ChannelSwitch::ChannelPutModifiable2(const std::string &channel, byte *inString, size_t length, int messageEnd, bool blocking)
{
ChannelRouteIterator it(*this);
it.Reset(channel);
if (!it.End())
{
BufferedTransformation &target = it.Destination();
const std::string &targetChannel = it.Channel();
it.Next();
if (it.End()) // there is only one target channel
return target.ChannelPutModifiable2(targetChannel, inString, length, messageEnd, blocking);
}
return ChannelPut2(channel, inString, length, messageEnd, blocking);
}
void ChannelSwitch::AddDefaultRoute(BufferedTransformation &destination)
{
m_defaultRoutes.push_back(DefaultRoute(&destination, value_ptr<std::string>(NULL)));
}
void ChannelSwitch::RemoveDefaultRoute(BufferedTransformation &destination)
{
for (DefaultRouteList::iterator it = m_defaultRoutes.begin(); it != m_defaultRoutes.end(); ++it)
if (it->first == &destination && !it->second.get())
{
m_defaultRoutes.erase(it);
break;
}
}
void ChannelSwitch::AddDefaultRoute(BufferedTransformation &destination, const std::string &outChannel)
{
m_defaultRoutes.push_back(DefaultRoute(&destination, outChannel));
}
void ChannelSwitch::RemoveDefaultRoute(BufferedTransformation &destination, const std::string &outChannel)
{
for (DefaultRouteList::iterator it = m_defaultRoutes.begin(); it != m_defaultRoutes.end(); ++it)
if (it->first == &destination && (it->second.get() && *it->second == outChannel))
{
m_defaultRoutes.erase(it);
break;
}
}
void ChannelSwitch::AddRoute(const std::string &inChannel, BufferedTransformation &destination, const std::string &outChannel)
{
m_routeMap.insert(RouteMap::value_type(inChannel, Route(&destination, outChannel)));
}
void ChannelSwitch::RemoveRoute(const std::string &inChannel, BufferedTransformation &destination, const std::string &outChannel)
{
typedef ChannelSwitch::RouteMap::iterator MapIterator;
pair<MapIterator, MapIterator> range = m_routeMap.equal_range(inChannel);
for (MapIterator it = range.first; it != range.second; ++it)
if (it->second.first == &destination && it->second.second == outChannel)
{
m_routeMap.erase(it);
break;
}
}
NAMESPACE_END
#endif

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#ifndef CRYPTOPP_CHANNELS_H
#define CRYPTOPP_CHANNELS_H
#include "simple.h"
#include "smartptr.h"
#include <map>
#include <list>
NAMESPACE_BEGIN(CryptoPP)
#if 0
//! Route input on default channel to different and/or multiple channels based on message sequence number
class MessageSwitch : public Sink
{
public:
void AddDefaultRoute(BufferedTransformation &destination, const std::string &channel);
void AddRoute(unsigned int begin, unsigned int end, BufferedTransformation &destination, const std::string &channel);
void Put(byte inByte);
void Put(const byte *inString, unsigned int length);
void Flush(bool completeFlush, int propagation=-1);
void MessageEnd(int propagation=-1);
void PutMessageEnd(const byte *inString, unsigned int length, int propagation=-1);
void MessageSeriesEnd(int propagation=-1);
private:
typedef std::pair<BufferedTransformation *, std::string> Route;
struct RangeRoute
{
RangeRoute(unsigned int begin, unsigned int end, const Route &route)
: begin(begin), end(end), route(route) {}
bool operator<(const RangeRoute &rhs) const {return begin < rhs.begin;}
unsigned int begin, end;
Route route;
};
typedef std::list<RangeRoute> RouteList;
typedef std::list<Route> DefaultRouteList;
RouteList m_routes;
DefaultRouteList m_defaultRoutes;
unsigned int m_nCurrentMessage;
};
#endif
class ChannelSwitchTypedefs
{
public:
typedef std::pair<BufferedTransformation *, std::string> Route;
typedef std::multimap<std::string, Route> RouteMap;
typedef std::pair<BufferedTransformation *, value_ptr<std::string> > DefaultRoute;
typedef std::list<DefaultRoute> DefaultRouteList;
// SunCC workaround: can't use const_iterator here
typedef RouteMap::iterator MapIterator;
typedef DefaultRouteList::iterator ListIterator;
};
class ChannelSwitch;
class ChannelRouteIterator : public ChannelSwitchTypedefs
{
public:
ChannelSwitch& m_cs;
std::string m_channel;
bool m_useDefault;
MapIterator m_itMapCurrent, m_itMapEnd;
ListIterator m_itListCurrent, m_itListEnd;
ChannelRouteIterator(ChannelSwitch &cs) : m_cs(cs) {}
void Reset(const std::string &channel);
bool End() const;
void Next();
BufferedTransformation & Destination();
const std::string & Channel();
};
//! Route input to different and/or multiple channels based on channel ID
class CRYPTOPP_DLL ChannelSwitch : public Multichannel<Sink>, public ChannelSwitchTypedefs
{
public:
ChannelSwitch() : m_it(*this), m_blocked(false) {}
ChannelSwitch(BufferedTransformation &destination) : m_it(*this), m_blocked(false)
{
AddDefaultRoute(destination);
}
ChannelSwitch(BufferedTransformation &destination, const std::string &outChannel) : m_it(*this), m_blocked(false)
{
AddDefaultRoute(destination, outChannel);
}
void IsolatedInitialize(const NameValuePairs &parameters=g_nullNameValuePairs);
size_t ChannelPut2(const std::string &channel, const byte *begin, size_t length, int messageEnd, bool blocking);
size_t ChannelPutModifiable2(const std::string &channel, byte *begin, size_t length, int messageEnd, bool blocking);
bool ChannelFlush(const std::string &channel, bool completeFlush, int propagation=-1, bool blocking=true);
bool ChannelMessageSeriesEnd(const std::string &channel, int propagation=-1, bool blocking=true);
byte * ChannelCreatePutSpace(const std::string &channel, size_t &size);
void AddDefaultRoute(BufferedTransformation &destination);
void RemoveDefaultRoute(BufferedTransformation &destination);
void AddDefaultRoute(BufferedTransformation &destination, const std::string &outChannel);
void RemoveDefaultRoute(BufferedTransformation &destination, const std::string &outChannel);
void AddRoute(const std::string &inChannel, BufferedTransformation &destination, const std::string &outChannel);
void RemoveRoute(const std::string &inChannel, BufferedTransformation &destination, const std::string &outChannel);
private:
RouteMap m_routeMap;
DefaultRouteList m_defaultRoutes;
ChannelRouteIterator m_it;
bool m_blocked;
friend class ChannelRouteIterator;
};
NAMESPACE_END
#endif

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// cmac.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "cmac.h"
NAMESPACE_BEGIN(CryptoPP)
static void MulU(byte *k, unsigned int length)
{
byte carry = 0;
for (int i=length-1; i>=1; i-=2)
{
byte carry2 = k[i] >> 7;
k[i] += k[i] + carry;
carry = k[i-1] >> 7;
k[i-1] += k[i-1] + carry2;
}
if (carry)
{
switch (length)
{
case 8:
k[7] ^= 0x1b;
break;
case 16:
k[15] ^= 0x87;
break;
case 32:
k[30] ^= 4;
k[31] ^= 0x23;
break;
default:
throw InvalidArgument("CMAC: " + IntToString(length) + " is not a supported cipher block size");
}
}
}
void CMAC_Base::UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs &params)
{
BlockCipher &cipher = AccessCipher();
unsigned int blockSize = cipher.BlockSize();
cipher.SetKey(key, length, params);
m_reg.CleanNew(3*blockSize);
m_counter = 0;
cipher.ProcessBlock(m_reg, m_reg+blockSize);
MulU(m_reg+blockSize, blockSize);
memcpy(m_reg+2*blockSize, m_reg+blockSize, blockSize);
MulU(m_reg+2*blockSize, blockSize);
}
void CMAC_Base::Update(const byte *input, size_t length)
{
if (!length)
return;
BlockCipher &cipher = AccessCipher();
unsigned int blockSize = cipher.BlockSize();
if (m_counter > 0)
{
unsigned int len = UnsignedMin(blockSize - m_counter, length);
xorbuf(m_reg+m_counter, input, len);
length -= len;
input += len;
m_counter += len;
if (m_counter == blockSize && length > 0)
{
cipher.ProcessBlock(m_reg);
m_counter = 0;
}
}
if (length > blockSize)
{
assert(m_counter == 0);
size_t leftOver = 1 + cipher.AdvancedProcessBlocks(m_reg, input, m_reg, length-1, BlockTransformation::BT_DontIncrementInOutPointers|BlockTransformation::BT_XorInput);
input += (length - leftOver);
length = leftOver;
}
if (length > 0)
{
assert(m_counter + length <= blockSize);
xorbuf(m_reg+m_counter, input, length);
m_counter += (unsigned int)length;
}
assert(m_counter > 0);
}
void CMAC_Base::TruncatedFinal(byte *mac, size_t size)
{
ThrowIfInvalidTruncatedSize(size);
BlockCipher &cipher = AccessCipher();
unsigned int blockSize = cipher.BlockSize();
if (m_counter < blockSize)
{
m_reg[m_counter] ^= 0x80;
cipher.AdvancedProcessBlocks(m_reg, m_reg+2*blockSize, m_reg, blockSize, BlockTransformation::BT_DontIncrementInOutPointers|BlockTransformation::BT_XorInput);
}
else
cipher.AdvancedProcessBlocks(m_reg, m_reg+blockSize, m_reg, blockSize, BlockTransformation::BT_DontIncrementInOutPointers|BlockTransformation::BT_XorInput);
memcpy(mac, m_reg, size);
m_counter = 0;
memset(m_reg, 0, blockSize);
}
NAMESPACE_END
#endif

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#ifndef CRYPTOPP_CMAC_H
#define CRYPTOPP_CMAC_H
#include "seckey.h"
#include "secblock.h"
NAMESPACE_BEGIN(CryptoPP)
//! _
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE CMAC_Base : public MessageAuthenticationCode
{
public:
CMAC_Base() {}
void UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs &params);
void Update(const byte *input, size_t length);
void TruncatedFinal(byte *mac, size_t size);
unsigned int DigestSize() const {return GetCipher().BlockSize();}
unsigned int OptimalBlockSize() const {return GetCipher().BlockSize();}
unsigned int OptimalDataAlignment() const {return GetCipher().OptimalDataAlignment();}
protected:
friend class EAX_Base;
const BlockCipher & GetCipher() const {return const_cast<CMAC_Base*>(this)->AccessCipher();}
virtual BlockCipher & AccessCipher() =0;
void ProcessBuf();
SecByteBlock m_reg;
unsigned int m_counter;
};
/// <a href="http://www.cryptolounge.org/wiki/CMAC">CMAC</a>
/*! Template parameter T should be a class derived from BlockCipherDocumentation, for example AES, with a block size of 8, 16, or 32 */
template <class T>
class CMAC : public MessageAuthenticationCodeImpl<CMAC_Base, CMAC<T> >, public SameKeyLengthAs<T>
{
public:
CMAC() {}
CMAC(const byte *key, size_t length=SameKeyLengthAs<T>::DEFAULT_KEYLENGTH)
{this->SetKey(key, length);}
static std::string StaticAlgorithmName() {return std::string("CMAC(") + T::StaticAlgorithmName() + ")";}
private:
BlockCipher & AccessCipher() {return m_cipher;}
typename T::Encryption m_cipher;
};
NAMESPACE_END
#endif

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lib/cryptopp/config.h
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#ifndef CRYPTOPP_CONFIG_H
#define CRYPTOPP_CONFIG_H
// ***************** Important Settings ********************
// define this if running on a big-endian CPU
#if !defined(IS_LITTLE_ENDIAN) && (defined(__BIG_ENDIAN__) || defined(__sparc) || defined(__sparc__) || defined(__hppa__) || defined(__MIPSEB__) || defined(__ARMEB__) || (defined(__MWERKS__) && !defined(__INTEL__)))
# define IS_BIG_ENDIAN
#endif
// define this if running on a little-endian CPU
// big endian will be assumed if IS_LITTLE_ENDIAN is not defined
#ifndef IS_BIG_ENDIAN
# define IS_LITTLE_ENDIAN
#endif
// define this if you want to disable all OS-dependent features,
// such as sockets and OS-provided random number generators
#define NO_OS_DEPENDENCE
// Define this to use features provided by Microsoft's CryptoAPI.
// Currently the only feature used is random number generation.
// This macro will be ignored if NO_OS_DEPENDENCE is defined.
// #define USE_MS_CRYPTOAPI
// Define this to 1 to enforce the requirement in FIPS 186-2 Change Notice 1 that only 1024 bit moduli be used
#ifndef DSA_1024_BIT_MODULUS_ONLY
# define DSA_1024_BIT_MODULUS_ONLY 1
#endif
// ***************** Less Important Settings ***************
// define this to retain (as much as possible) old deprecated function and class names
// #define CRYPTOPP_MAINTAIN_BACKWARDS_COMPATIBILITY
#define GZIP_OS_CODE 0
// Try this if your CPU has 256K internal cache or a slow multiply instruction
// and you want a (possibly) faster IDEA implementation using log tables
// #define IDEA_LARGECACHE
// Define this if, for the linear congruential RNG, you want to use
// the original constants as specified in S.K. Park and K.W. Miller's
// CACM paper.
// #define LCRNG_ORIGINAL_NUMBERS
// choose which style of sockets to wrap (mostly useful for cygwin which has both)
#define PREFER_BERKELEY_STYLE_SOCKETS
// #define PREFER_WINDOWS_STYLE_SOCKETS
// set the name of Rijndael cipher, was "Rijndael" before version 5.3
#define CRYPTOPP_RIJNDAEL_NAME "AES"
// ***************** Important Settings Again ********************
// But the defaults should be ok.
// namespace support is now required
#ifdef NO_NAMESPACE
# error namespace support is now required
#endif
// Define this to workaround a Microsoft CryptoAPI bug where
// each call to CryptAcquireContext causes a 100 KB memory leak.
// Defining this will cause Crypto++ to make only one call to CryptAcquireContext.
#define WORKAROUND_MS_BUG_Q258000
#ifdef CRYPTOPP_DOXYGEN_PROCESSING
// Avoid putting "CryptoPP::" in front of everything in Doxygen output
# define CryptoPP
# define NAMESPACE_BEGIN(x)
# define NAMESPACE_END
// Get Doxygen to generate better documentation for these typedefs
# define DOCUMENTED_TYPEDEF(x, y) class y : public x {};
#else
# define NAMESPACE_BEGIN(x) namespace x {
# define NAMESPACE_END }
# define DOCUMENTED_TYPEDEF(x, y) typedef x y;
#endif
#define ANONYMOUS_NAMESPACE_BEGIN namespace {
#define USING_NAMESPACE(x) using namespace x;
#define DOCUMENTED_NAMESPACE_BEGIN(x) namespace x {
#define DOCUMENTED_NAMESPACE_END }
// What is the type of the third parameter to bind?
// For Unix, the new standard is ::socklen_t (typically unsigned int), and the old standard is int.
// Unfortunately there is no way to tell whether or not socklen_t is defined.
// To work around this, TYPE_OF_SOCKLEN_T is a macro so that you can change it from the makefile.
#ifndef TYPE_OF_SOCKLEN_T
# if defined(_WIN32) || defined(__CYGWIN__)
# define TYPE_OF_SOCKLEN_T int
# else
# define TYPE_OF_SOCKLEN_T ::socklen_t
# endif
#endif
#if defined(__CYGWIN__) && defined(PREFER_WINDOWS_STYLE_SOCKETS)
# define __USE_W32_SOCKETS
#endif
typedef unsigned char byte; // put in global namespace to avoid ambiguity with other byte typedefs
NAMESPACE_BEGIN(CryptoPP)
typedef unsigned short word16;
typedef unsigned int word32;
#if defined(_MSC_VER) || defined(__BORLANDC__)
typedef unsigned __int64 word64;
#define W64LIT(x) x##ui64
#else
typedef unsigned long long word64;
#define W64LIT(x) x##ULL
#endif
// define large word type, used for file offsets and such
typedef word64 lword;
const lword LWORD_MAX = W64LIT(0xffffffffffffffff);
#ifdef __GNUC__
#define CRYPTOPP_GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
#endif
// define hword, word, and dword. these are used for multiprecision integer arithmetic
// Intel compiler won't have _umul128 until version 10.0. See http://softwarecommunity.intel.com/isn/Community/en-US/forums/thread/30231625.aspx
#if (defined(_MSC_VER) && (!defined(__INTEL_COMPILER) || __INTEL_COMPILER >= 1000) && (defined(_M_X64) || defined(_M_IA64))) || (defined(__DECCXX) && defined(__alpha__)) || (defined(__INTEL_COMPILER) && defined(__x86_64__)) || (defined(__SUNPRO_CC) && defined(__x86_64__))
typedef word32 hword;
typedef word64 word;
#else
#define CRYPTOPP_NATIVE_DWORD_AVAILABLE
#if defined(__alpha__) || defined(__ia64__) || defined(_ARCH_PPC64) || defined(__x86_64__) || defined(__mips64) || defined(__sparc64__)
#if defined(__GNUC__) && !defined(__INTEL_COMPILER) && !(CRYPTOPP_GCC_VERSION == 40001 && defined(__APPLE__)) && CRYPTOPP_GCC_VERSION >= 30400
// GCC 4.0.1 on MacOS X is missing __umodti3 and __udivti3
// mode(TI) division broken on amd64 with GCC earlier than GCC 3.4
typedef word32 hword;
typedef word64 word;
typedef __uint128_t dword;
typedef __uint128_t word128;
#define CRYPTOPP_WORD128_AVAILABLE
#else
// if we're here, it means we're on a 64-bit CPU but we don't have a way to obtain 128-bit multiplication results
typedef word16 hword;
typedef word32 word;
typedef word64 dword;
#endif
#else
// being here means the native register size is probably 32 bits or less
#define CRYPTOPP_BOOL_SLOW_WORD64 1
typedef word16 hword;
typedef word32 word;
typedef word64 dword;
#endif
#endif
#ifndef CRYPTOPP_BOOL_SLOW_WORD64
#define CRYPTOPP_BOOL_SLOW_WORD64 0
#endif
const unsigned int WORD_SIZE = sizeof(word);
const unsigned int WORD_BITS = WORD_SIZE * 8;
NAMESPACE_END
#ifndef CRYPTOPP_L1_CACHE_LINE_SIZE
// This should be a lower bound on the L1 cache line size. It's used for defense against timing attacks.
#if defined(_M_X64) || defined(__x86_64__)
#define CRYPTOPP_L1_CACHE_LINE_SIZE 64
#else
// L1 cache line size is 32 on Pentium III and earlier
#define CRYPTOPP_L1_CACHE_LINE_SIZE 32
#endif
#endif
#if defined(_MSC_VER)
#if _MSC_VER == 1200
#include <malloc.h>
#endif
#if _MSC_VER > 1200 || defined(_mm_free)
#define CRYPTOPP_MSVC6PP_OR_LATER // VC 6 processor pack or later
#else
#define CRYPTOPP_MSVC6_NO_PP // VC 6 without processor pack
#endif
#endif
#ifndef CRYPTOPP_ALIGN_DATA
#if defined(CRYPTOPP_MSVC6PP_OR_LATER)
#define CRYPTOPP_ALIGN_DATA(x) __declspec(align(x))
#elif defined(__GNUC__)
#define CRYPTOPP_ALIGN_DATA(x) __attribute__((aligned(x)))
#else
#define CRYPTOPP_ALIGN_DATA(x)
#endif
#endif
#ifndef CRYPTOPP_SECTION_ALIGN16
#if defined(__GNUC__) && !defined(__APPLE__)
// the alignment attribute doesn't seem to work without this section attribute when -fdata-sections is turned on
#define CRYPTOPP_SECTION_ALIGN16 __attribute__((section ("CryptoPP_Align16")))
#else
#define CRYPTOPP_SECTION_ALIGN16
#endif
#endif
#if defined(_MSC_VER) || defined(__fastcall)
#define CRYPTOPP_FASTCALL __fastcall
#else
#define CRYPTOPP_FASTCALL
#endif
// VC60 workaround: it doesn't allow typename in some places
#if defined(_MSC_VER) && (_MSC_VER < 1300)
#define CPP_TYPENAME
#else
#define CPP_TYPENAME typename
#endif
// VC60 workaround: can't cast unsigned __int64 to float or double
#if defined(_MSC_VER) && !defined(CRYPTOPP_MSVC6PP_OR_LATER)
#define CRYPTOPP_VC6_INT64 (__int64)
#else
#define CRYPTOPP_VC6_INT64
#endif
#ifdef _MSC_VER
#define CRYPTOPP_NO_VTABLE __declspec(novtable)
#else
#define CRYPTOPP_NO_VTABLE
#endif
#ifdef _MSC_VER
// 4231: nonstandard extension used : 'extern' before template explicit instantiation
// 4250: dominance
// 4251: member needs to have dll-interface
// 4275: base needs to have dll-interface
// 4660: explicitly instantiating a class that's already implicitly instantiated
// 4661: no suitable definition provided for explicit template instantiation request
// 4786: identifer was truncated in debug information
// 4355: 'this' : used in base member initializer list
// 4910: '__declspec(dllexport)' and 'extern' are incompatible on an explicit instantiation
# pragma warning(disable: 4231 4250 4251 4275 4660 4661 4786 4355 4910)
#endif
#ifdef __BORLANDC__
// 8037: non-const function called for const object. needed to work around BCB2006 bug
# pragma warn -8037
#endif
#if (defined(_MSC_VER) && _MSC_VER <= 1300) || defined(__MWERKS__) || defined(_STLPORT_VERSION) || defined(ANDROID_NDK)
#define CRYPTOPP_DISABLE_UNCAUGHT_EXCEPTION
#endif
#ifndef CRYPTOPP_DISABLE_UNCAUGHT_EXCEPTION
#define CRYPTOPP_UNCAUGHT_EXCEPTION_AVAILABLE
#endif
#ifdef CRYPTOPP_DISABLE_X86ASM // for backwards compatibility: this macro had both meanings
#define CRYPTOPP_DISABLE_ASM
#define CRYPTOPP_DISABLE_SSE2
#endif
#if !defined(CRYPTOPP_DISABLE_ASM) && ((defined(_MSC_VER) && defined(_M_IX86)) || (defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))))
// C++Builder 2010 does not allow "call label" where label is defined within inline assembly
#define CRYPTOPP_X86_ASM_AVAILABLE
#if !defined(CRYPTOPP_DISABLE_SSE2) && (defined(CRYPTOPP_MSVC6PP_OR_LATER) || CRYPTOPP_GCC_VERSION >= 30300)
#define CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE 1
#else
#define CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE 0
#endif
// SSSE3 was actually introduced in GNU as 2.17, which was released 6/23/2006, but we can't tell what version of binutils is installed.
// GCC 4.1.2 was released on 2/13/2007, so we'll use that as a proxy for the binutils version.
#if !defined(CRYPTOPP_DISABLE_SSSE3) && (_MSC_VER >= 1400 || CRYPTOPP_GCC_VERSION >= 40102)
#define CRYPTOPP_BOOL_SSSE3_ASM_AVAILABLE 1
#else
#define CRYPTOPP_BOOL_SSSE3_ASM_AVAILABLE 0
#endif
#endif
#if !defined(CRYPTOPP_DISABLE_ASM) && defined(_MSC_VER) && defined(_M_X64)
#define CRYPTOPP_X64_MASM_AVAILABLE
#endif
#if !defined(CRYPTOPP_DISABLE_ASM) && defined(__GNUC__) && defined(__x86_64__)
#define CRYPTOPP_X64_ASM_AVAILABLE
#endif
#if !defined(CRYPTOPP_DISABLE_SSE2) && (defined(CRYPTOPP_MSVC6PP_OR_LATER) || defined(__SSE2__))
#define CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE 1
#else
#define CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE 0
#endif
#if !defined(CRYPTOPP_DISABLE_SSSE3) && !defined(CRYPTOPP_DISABLE_AESNI) && CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE && (CRYPTOPP_GCC_VERSION >= 40400 || _MSC_FULL_VER >= 150030729 || __INTEL_COMPILER >= 1110)
#define CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE 1
#else
#define CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE 0
#endif
#if CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE || CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE || defined(CRYPTOPP_X64_MASM_AVAILABLE)
#define CRYPTOPP_BOOL_ALIGN16_ENABLED 1
#else
#define CRYPTOPP_BOOL_ALIGN16_ENABLED 0
#endif
// how to allocate 16-byte aligned memory (for SSE2)
#if defined(CRYPTOPP_MSVC6PP_OR_LATER)
#define CRYPTOPP_MM_MALLOC_AVAILABLE
#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
#define CRYPTOPP_MALLOC_ALIGNMENT_IS_16
#elif defined(__linux__) || defined(__sun__) || defined(__CYGWIN__)
#define CRYPTOPP_MEMALIGN_AVAILABLE
#else
#define CRYPTOPP_NO_ALIGNED_ALLOC
#endif
// how to disable inlining
#if defined(_MSC_VER) && _MSC_VER >= 1300
# define CRYPTOPP_NOINLINE_DOTDOTDOT
# define CRYPTOPP_NOINLINE __declspec(noinline)
#elif defined(__GNUC__)
# define CRYPTOPP_NOINLINE_DOTDOTDOT
# define CRYPTOPP_NOINLINE __attribute__((noinline))
#else
# define CRYPTOPP_NOINLINE_DOTDOTDOT ...
# define CRYPTOPP_NOINLINE
#endif
// how to declare class constants
#if (defined(_MSC_VER) && _MSC_VER <= 1300) || defined(__INTEL_COMPILER)
# define CRYPTOPP_CONSTANT(x) enum {x};
#else
# define CRYPTOPP_CONSTANT(x) static const int x;
#endif
#if defined(_M_X64) || defined(__x86_64__)
#define CRYPTOPP_BOOL_X64 1
#else
#define CRYPTOPP_BOOL_X64 0
#endif
// see http://predef.sourceforge.net/prearch.html
#if defined(_M_IX86) || defined(__i386__) || defined(__i386) || defined(_X86_) || defined(__I86__) || defined(__INTEL__)
#define CRYPTOPP_BOOL_X86 1
#else
#define CRYPTOPP_BOOL_X86 0
#endif
#if CRYPTOPP_BOOL_X64 || CRYPTOPP_BOOL_X86 || defined(__powerpc__)
#define CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS
#endif
#define CRYPTOPP_VERSION 562
// ***************** determine availability of OS features ********************
#ifndef NO_OS_DEPENDENCE
#if defined(_WIN32) || defined(__CYGWIN__)
#define CRYPTOPP_WIN32_AVAILABLE
#endif
#if defined(__unix__) || defined(__MACH__) || defined(__NetBSD__) || defined(__sun)
#define CRYPTOPP_UNIX_AVAILABLE
#endif
#if defined(CRYPTOPP_WIN32_AVAILABLE) || defined(CRYPTOPP_UNIX_AVAILABLE)
# define HIGHRES_TIMER_AVAILABLE
#endif
#ifdef CRYPTOPP_UNIX_AVAILABLE
# define HAS_BERKELEY_STYLE_SOCKETS
#endif
#ifdef CRYPTOPP_WIN32_AVAILABLE
# define HAS_WINDOWS_STYLE_SOCKETS
#endif
#if defined(HIGHRES_TIMER_AVAILABLE) && (defined(HAS_BERKELEY_STYLE_SOCKETS) || defined(HAS_WINDOWS_STYLE_SOCKETS))
# define SOCKETS_AVAILABLE
#endif
#if defined(HAS_WINDOWS_STYLE_SOCKETS) && (!defined(HAS_BERKELEY_STYLE_SOCKETS) || defined(PREFER_WINDOWS_STYLE_SOCKETS))
# define USE_WINDOWS_STYLE_SOCKETS
#else
# define USE_BERKELEY_STYLE_SOCKETS
#endif
#if defined(HIGHRES_TIMER_AVAILABLE) && defined(CRYPTOPP_WIN32_AVAILABLE) && !defined(USE_BERKELEY_STYLE_SOCKETS)
# define WINDOWS_PIPES_AVAILABLE
#endif
#if defined(CRYPTOPP_WIN32_AVAILABLE) && defined(USE_MS_CRYPTOAPI)
# define NONBLOCKING_RNG_AVAILABLE
# define OS_RNG_AVAILABLE
#endif
#if defined(CRYPTOPP_UNIX_AVAILABLE) || defined(CRYPTOPP_DOXYGEN_PROCESSING)
# define NONBLOCKING_RNG_AVAILABLE
# define BLOCKING_RNG_AVAILABLE
# define OS_RNG_AVAILABLE
# define HAS_PTHREADS
# define THREADS_AVAILABLE
#endif
#ifdef CRYPTOPP_WIN32_AVAILABLE
# define HAS_WINTHREADS
# define THREADS_AVAILABLE
#endif
#endif // NO_OS_DEPENDENCE
// ***************** DLL related ********************
#if defined(CRYPTOPP_WIN32_AVAILABLE) && !defined(CRYPTOPP_DOXYGEN_PROCESSING)
#ifdef CRYPTOPP_EXPORTS
#define CRYPTOPP_IS_DLL
#define CRYPTOPP_DLL __declspec(dllexport)
#elif defined(CRYPTOPP_IMPORTS)
#define CRYPTOPP_IS_DLL
#define CRYPTOPP_DLL __declspec(dllimport)
#else
#define CRYPTOPP_DLL
#endif
#define CRYPTOPP_API __cdecl
#else // CRYPTOPP_WIN32_AVAILABLE
#define CRYPTOPP_DLL
#define CRYPTOPP_API
#endif // CRYPTOPP_WIN32_AVAILABLE
#if defined(__MWERKS__)
#define CRYPTOPP_EXTERN_DLL_TEMPLATE_CLASS extern class CRYPTOPP_DLL
#elif defined(__BORLANDC__) || defined(__SUNPRO_CC)
#define CRYPTOPP_EXTERN_DLL_TEMPLATE_CLASS template class CRYPTOPP_DLL
#else
#define CRYPTOPP_EXTERN_DLL_TEMPLATE_CLASS extern template class CRYPTOPP_DLL
#endif
#if defined(CRYPTOPP_MANUALLY_INSTANTIATE_TEMPLATES) && !defined(CRYPTOPP_IMPORTS)
#define CRYPTOPP_DLL_TEMPLATE_CLASS template class CRYPTOPP_DLL
#else
#define CRYPTOPP_DLL_TEMPLATE_CLASS CRYPTOPP_EXTERN_DLL_TEMPLATE_CLASS
#endif
#if defined(__MWERKS__)
#define CRYPTOPP_EXTERN_STATIC_TEMPLATE_CLASS extern class
#elif defined(__BORLANDC__) || defined(__SUNPRO_CC)
#define CRYPTOPP_EXTERN_STATIC_TEMPLATE_CLASS template class
#else
#define CRYPTOPP_EXTERN_STATIC_TEMPLATE_CLASS extern template class
#endif
#if defined(CRYPTOPP_MANUALLY_INSTANTIATE_TEMPLATES) && !defined(CRYPTOPP_EXPORTS)
#define CRYPTOPP_STATIC_TEMPLATE_CLASS template class
#else
#define CRYPTOPP_STATIC_TEMPLATE_CLASS CRYPTOPP_EXTERN_STATIC_TEMPLATE_CLASS
#endif
#endif

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// cpu.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "cpu.h"
#include "misc.h"
#include <algorithm>
#ifndef CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY
#include <signal.h>
#include <setjmp.h>
#endif
#if CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE
#include <emmintrin.h>
#endif
NAMESPACE_BEGIN(CryptoPP)
#ifdef CRYPTOPP_CPUID_AVAILABLE
#if _MSC_VER >= 1400 && CRYPTOPP_BOOL_X64
bool CpuId(word32 input, word32 *output)
{
__cpuid((int *)output, input);
return true;
}
#else
#ifndef CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY
extern "C" {
typedef void (*SigHandler)(int);
static jmp_buf s_jmpNoCPUID;
static void SigIllHandlerCPUID(int)
{
longjmp(s_jmpNoCPUID, 1);
}
static jmp_buf s_jmpNoSSE2;
static void SigIllHandlerSSE2(int)
{
longjmp(s_jmpNoSSE2, 1);
}
}
#endif
bool CpuId(word32 input, word32 *output)
{
#ifdef CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY
__try
{
__asm
{
mov eax, input
cpuid
mov edi, output
mov [edi], eax
mov [edi+4], ebx
mov [edi+8], ecx
mov [edi+12], edx
}
}
__except (1)
{
return false;
}
return true;
#else
SigHandler oldHandler = signal(SIGILL, SigIllHandlerCPUID);
if (oldHandler == SIG_ERR)
return false;
bool result = true;
if (setjmp(s_jmpNoCPUID))
result = false;
else
{
asm
(
// save ebx in case -fPIC is being used
#if CRYPTOPP_BOOL_X86
"push %%ebx; cpuid; mov %%ebx, %%edi; pop %%ebx"
#else
"pushq %%rbx; cpuid; mov %%ebx, %%edi; popq %%rbx"
#endif
: "=a" (output[0]), "=D" (output[1]), "=c" (output[2]), "=d" (output[3])
: "a" (input)
);
}
signal(SIGILL, oldHandler);
return result;
#endif
}
#endif
static bool TrySSE2()
{
#if CRYPTOPP_BOOL_X64
return true;
#elif defined(CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY)
__try
{
#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE
AS2(por xmm0, xmm0) // executing SSE2 instruction
#elif CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE
__m128i x = _mm_setzero_si128();
return _mm_cvtsi128_si32(x) == 0;
#endif
}
__except (1)
{
return false;
}
return true;
#else
SigHandler oldHandler = signal(SIGILL, SigIllHandlerSSE2);
if (oldHandler == SIG_ERR)
return false;
bool result = true;
if (setjmp(s_jmpNoSSE2))
result = false;
else
{
#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE
__asm __volatile ("por %xmm0, %xmm0");
#elif CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE
__m128i x = _mm_setzero_si128();
result = _mm_cvtsi128_si32(x) == 0;
#endif
}
signal(SIGILL, oldHandler);
return result;
#endif
}
bool g_x86DetectionDone = false;
bool g_hasISSE = false, g_hasSSE2 = false, g_hasSSSE3 = false, g_hasMMX = false, g_hasAESNI = false, g_hasCLMUL = false, g_isP4 = false;
word32 g_cacheLineSize = CRYPTOPP_L1_CACHE_LINE_SIZE;
void DetectX86Features()
{
word32 cpuid[4], cpuid1[4];
if (!CpuId(0, cpuid))
return;
if (!CpuId(1, cpuid1))
return;
g_hasMMX = (cpuid1[3] & (1 << 23)) != 0;
if ((cpuid1[3] & (1 << 26)) != 0)
g_hasSSE2 = TrySSE2();
g_hasSSSE3 = g_hasSSE2 && (cpuid1[2] & (1<<9));
g_hasAESNI = g_hasSSE2 && (cpuid1[2] & (1<<25));
g_hasCLMUL = g_hasSSE2 && (cpuid1[2] & (1<<1));
if ((cpuid1[3] & (1 << 25)) != 0)
g_hasISSE = true;
else
{
word32 cpuid2[4];
CpuId(0x080000000, cpuid2);
if (cpuid2[0] >= 0x080000001)
{
CpuId(0x080000001, cpuid2);
g_hasISSE = (cpuid2[3] & (1 << 22)) != 0;
}
}
std::swap(cpuid[2], cpuid[3]);
if (memcmp(cpuid+1, "GenuineIntel", 12) == 0)
{
g_isP4 = ((cpuid1[0] >> 8) & 0xf) == 0xf;
g_cacheLineSize = 8 * GETBYTE(cpuid1[1], 1);
}
else if (memcmp(cpuid+1, "AuthenticAMD", 12) == 0)
{
CpuId(0x80000005, cpuid);
g_cacheLineSize = GETBYTE(cpuid[2], 0);
}
if (!g_cacheLineSize)
g_cacheLineSize = CRYPTOPP_L1_CACHE_LINE_SIZE;
g_x86DetectionDone = true;
}
#endif
NAMESPACE_END
#endif

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@ -1,345 +0,0 @@
#ifndef CRYPTOPP_CPU_H
#define CRYPTOPP_CPU_H
#ifdef CRYPTOPP_GENERATE_X64_MASM
#define CRYPTOPP_X86_ASM_AVAILABLE
#define CRYPTOPP_BOOL_X64 1
#define CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE 1
#define NAMESPACE_END
#else
#include "config.h"
#if CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE
#include <emmintrin.h>
#endif
#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE
#if !defined(__GNUC__) || defined(__SSSE3__) || defined(__INTEL_COMPILER)
#include <tmmintrin.h>
#else
__inline __m128i __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_shuffle_epi8 (__m128i a, __m128i b)
{
asm ("pshufb %1, %0" : "+x"(a) : "xm"(b));
return a;
}
#endif
#if !defined(__GNUC__) || defined(__SSE4_1__) || defined(__INTEL_COMPILER)
#include <smmintrin.h>
#else
__inline int __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_extract_epi32 (__m128i a, const int i)
{
int r;
asm ("pextrd %2, %1, %0" : "=rm"(r) : "x"(a), "i"(i));
return r;
}
__inline __m128i __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_insert_epi32 (__m128i a, int b, const int i)
{
asm ("pinsrd %2, %1, %0" : "+x"(a) : "rm"(b), "i"(i));
return a;
}
#endif
#if !defined(__GNUC__) || (defined(__AES__) && defined(__PCLMUL__)) || defined(__INTEL_COMPILER)
#include <wmmintrin.h>
#else
__inline __m128i __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_clmulepi64_si128 (__m128i a, __m128i b, const int i)
{
asm ("pclmulqdq %2, %1, %0" : "+x"(a) : "xm"(b), "i"(i));
return a;
}
__inline __m128i __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_aeskeygenassist_si128 (__m128i a, const int i)
{
__m128i r;
asm ("aeskeygenassist %2, %1, %0" : "=x"(r) : "xm"(a), "i"(i));
return r;
}
__inline __m128i __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_aesimc_si128 (__m128i a)
{
__m128i r;
asm ("aesimc %1, %0" : "=x"(r) : "xm"(a));
return r;
}
__inline __m128i __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_aesenc_si128 (__m128i a, __m128i b)
{
asm ("aesenc %1, %0" : "+x"(a) : "xm"(b));
return a;
}
__inline __m128i __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_aesenclast_si128 (__m128i a, __m128i b)
{
asm ("aesenclast %1, %0" : "+x"(a) : "xm"(b));
return a;
}
__inline __m128i __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_aesdec_si128 (__m128i a, __m128i b)
{
asm ("aesdec %1, %0" : "+x"(a) : "xm"(b));
return a;
}
__inline __m128i __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_mm_aesdeclast_si128 (__m128i a, __m128i b)
{
asm ("aesdeclast %1, %0" : "+x"(a) : "xm"(b));
return a;
}
#endif
#endif
NAMESPACE_BEGIN(CryptoPP)
#if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X64
#define CRYPTOPP_CPUID_AVAILABLE
// these should not be used directly
extern CRYPTOPP_DLL bool g_x86DetectionDone;
extern CRYPTOPP_DLL bool g_hasSSSE3;
extern CRYPTOPP_DLL bool g_hasAESNI;
extern CRYPTOPP_DLL bool g_hasCLMUL;
extern CRYPTOPP_DLL bool g_isP4;
extern CRYPTOPP_DLL word32 g_cacheLineSize;
CRYPTOPP_DLL void CRYPTOPP_API DetectX86Features();
CRYPTOPP_DLL bool CRYPTOPP_API CpuId(word32 input, word32 *output);
#if CRYPTOPP_BOOL_X64
inline bool HasSSE2() {return true;}
inline bool HasISSE() {return true;}
inline bool HasMMX() {return true;}
#else
extern CRYPTOPP_DLL bool g_hasSSE2;
extern CRYPTOPP_DLL bool g_hasISSE;
extern CRYPTOPP_DLL bool g_hasMMX;
inline bool HasSSE2()
{
if (!g_x86DetectionDone)
DetectX86Features();
return g_hasSSE2;
}
inline bool HasISSE()
{
if (!g_x86DetectionDone)
DetectX86Features();
return g_hasISSE;
}
inline bool HasMMX()
{
if (!g_x86DetectionDone)
DetectX86Features();
return g_hasMMX;
}
#endif
inline bool HasSSSE3()
{
if (!g_x86DetectionDone)
DetectX86Features();
return g_hasSSSE3;
}
inline bool HasAESNI()
{
if (!g_x86DetectionDone)
DetectX86Features();
return g_hasAESNI;
}
inline bool HasCLMUL()
{
if (!g_x86DetectionDone)
DetectX86Features();
return g_hasCLMUL;
}
inline bool IsP4()
{
if (!g_x86DetectionDone)
DetectX86Features();
return g_isP4;
}
inline int GetCacheLineSize()
{
if (!g_x86DetectionDone)
DetectX86Features();
return g_cacheLineSize;
}
#else
inline int GetCacheLineSize()
{
return CRYPTOPP_L1_CACHE_LINE_SIZE;
}
#endif
#endif
#ifdef CRYPTOPP_GENERATE_X64_MASM
#define AS1(x) x*newline*
#define AS2(x, y) x, y*newline*
#define AS3(x, y, z) x, y, z*newline*
#define ASS(x, y, a, b, c, d) x, y, a*64+b*16+c*4+d*newline*
#define ASL(x) label##x:*newline*
#define ASJ(x, y, z) x label##y*newline*
#define ASC(x, y) x label##y*newline*
#define AS_HEX(y) 0##y##h
#elif defined(_MSC_VER) || defined(__BORLANDC__)
#define CRYPTOPP_MS_STYLE_INLINE_ASSEMBLY
#define AS1(x) __asm {x}
#define AS2(x, y) __asm {x, y}
#define AS3(x, y, z) __asm {x, y, z}
#define ASS(x, y, a, b, c, d) __asm {x, y, (a)*64+(b)*16+(c)*4+(d)}
#define ASL(x) __asm {label##x:}
#define ASJ(x, y, z) __asm {x label##y}
#define ASC(x, y) __asm {x label##y}
#define CRYPTOPP_NAKED __declspec(naked)
#define AS_HEX(y) 0x##y
#else
#define CRYPTOPP_GNU_STYLE_INLINE_ASSEMBLY
// define these in two steps to allow arguments to be expanded
#define GNU_AS1(x) #x ";"
#define GNU_AS2(x, y) #x ", " #y ";"
#define GNU_AS3(x, y, z) #x ", " #y ", " #z ";"
#define GNU_ASL(x) "\n" #x ":"
#define GNU_ASJ(x, y, z) #x " " #y #z ";"
#define AS1(x) GNU_AS1(x)
#define AS2(x, y) GNU_AS2(x, y)
#define AS3(x, y, z) GNU_AS3(x, y, z)
#define ASS(x, y, a, b, c, d) #x ", " #y ", " #a "*64+" #b "*16+" #c "*4+" #d ";"
#define ASL(x) GNU_ASL(x)
#define ASJ(x, y, z) GNU_ASJ(x, y, z)
#define ASC(x, y) #x " " #y ";"
#define CRYPTOPP_NAKED
#define AS_HEX(y) 0x##y
#endif
#define IF0(y)
#define IF1(y) y
#ifdef CRYPTOPP_GENERATE_X64_MASM
#define ASM_MOD(x, y) ((x) MOD (y))
#define XMMWORD_PTR XMMWORD PTR
#else
// GNU assembler doesn't seem to have mod operator
#define ASM_MOD(x, y) ((x)-((x)/(y))*(y))
// GAS 2.15 doesn't support XMMWORD PTR. it seems necessary only for MASM
#define XMMWORD_PTR
#endif
#if CRYPTOPP_BOOL_X86
#define AS_REG_1 ecx
#define AS_REG_2 edx
#define AS_REG_3 esi
#define AS_REG_4 edi
#define AS_REG_5 eax
#define AS_REG_6 ebx
#define AS_REG_7 ebp
#define AS_REG_1d ecx
#define AS_REG_2d edx
#define AS_REG_3d esi
#define AS_REG_4d edi
#define AS_REG_5d eax
#define AS_REG_6d ebx
#define AS_REG_7d ebp
#define WORD_SZ 4
#define WORD_REG(x) e##x
#define WORD_PTR DWORD PTR
#define AS_PUSH_IF86(x) AS1(push e##x)
#define AS_POP_IF86(x) AS1(pop e##x)
#define AS_JCXZ jecxz
#elif CRYPTOPP_BOOL_X64
#ifdef CRYPTOPP_GENERATE_X64_MASM
#define AS_REG_1 rcx
#define AS_REG_2 rdx
#define AS_REG_3 r8
#define AS_REG_4 r9
#define AS_REG_5 rax
#define AS_REG_6 r10
#define AS_REG_7 r11
#define AS_REG_1d ecx
#define AS_REG_2d edx
#define AS_REG_3d r8d
#define AS_REG_4d r9d
#define AS_REG_5d eax
#define AS_REG_6d r10d
#define AS_REG_7d r11d
#else
#define AS_REG_1 rdi
#define AS_REG_2 rsi
#define AS_REG_3 rdx
#define AS_REG_4 rcx
#define AS_REG_5 r8
#define AS_REG_6 r9
#define AS_REG_7 r10
#define AS_REG_1d edi
#define AS_REG_2d esi
#define AS_REG_3d edx
#define AS_REG_4d ecx
#define AS_REG_5d r8d
#define AS_REG_6d r9d
#define AS_REG_7d r10d
#endif
#define WORD_SZ 8
#define WORD_REG(x) r##x
#define WORD_PTR QWORD PTR
#define AS_PUSH_IF86(x)
#define AS_POP_IF86(x)
#define AS_JCXZ jrcxz
#endif
// helper macro for stream cipher output
#define AS_XMM_OUTPUT4(labelPrefix, inputPtr, outputPtr, x0, x1, x2, x3, t, p0, p1, p2, p3, increment)\
AS2( test inputPtr, inputPtr)\
ASC( jz, labelPrefix##3)\
AS2( test inputPtr, 15)\
ASC( jnz, labelPrefix##7)\
AS2( pxor xmm##x0, [inputPtr+p0*16])\
AS2( pxor xmm##x1, [inputPtr+p1*16])\
AS2( pxor xmm##x2, [inputPtr+p2*16])\
AS2( pxor xmm##x3, [inputPtr+p3*16])\
AS2( add inputPtr, increment*16)\
ASC( jmp, labelPrefix##3)\
ASL(labelPrefix##7)\
AS2( movdqu xmm##t, [inputPtr+p0*16])\
AS2( pxor xmm##x0, xmm##t)\
AS2( movdqu xmm##t, [inputPtr+p1*16])\
AS2( pxor xmm##x1, xmm##t)\
AS2( movdqu xmm##t, [inputPtr+p2*16])\
AS2( pxor xmm##x2, xmm##t)\
AS2( movdqu xmm##t, [inputPtr+p3*16])\
AS2( pxor xmm##x3, xmm##t)\
AS2( add inputPtr, increment*16)\
ASL(labelPrefix##3)\
AS2( test outputPtr, 15)\
ASC( jnz, labelPrefix##8)\
AS2( movdqa [outputPtr+p0*16], xmm##x0)\
AS2( movdqa [outputPtr+p1*16], xmm##x1)\
AS2( movdqa [outputPtr+p2*16], xmm##x2)\
AS2( movdqa [outputPtr+p3*16], xmm##x3)\
ASC( jmp, labelPrefix##9)\
ASL(labelPrefix##8)\
AS2( movdqu [outputPtr+p0*16], xmm##x0)\
AS2( movdqu [outputPtr+p1*16], xmm##x1)\
AS2( movdqu [outputPtr+p2*16], xmm##x2)\
AS2( movdqu [outputPtr+p3*16], xmm##x3)\
ASL(labelPrefix##9)\
AS2( add outputPtr, increment*16)
NAMESPACE_END
#endif

160
lib/cryptopp/crc.cpp
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@ -1,160 +0,0 @@
// crc.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#include "crc.h"
#include "misc.h"
NAMESPACE_BEGIN(CryptoPP)
/* Table of CRC-32's of all single byte values (made by makecrc.c) */
const word32 CRC32::m_tab[] = {
#ifdef IS_LITTLE_ENDIAN
0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,
0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,
0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,
0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,
0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,
0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,
0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,
0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,
0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,
0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,
0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,
0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,
0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,
0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,
0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,
0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,
0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,
0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,
0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,
0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,
0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,
0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,
0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,
0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,
0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,
0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,
0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,
0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,
0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,
0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,
0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,
0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,
0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,
0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,
0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,
0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,
0x2d02ef8dL
#else
0x00000000L, 0x96300777L, 0x2c610eeeL, 0xba510999L, 0x19c46d07L,
0x8ff46a70L, 0x35a563e9L, 0xa395649eL, 0x3288db0eL, 0xa4b8dc79L,
0x1ee9d5e0L, 0x88d9d297L, 0x2b4cb609L, 0xbd7cb17eL, 0x072db8e7L,
0x911dbf90L, 0x6410b71dL, 0xf220b06aL, 0x4871b9f3L, 0xde41be84L,
0x7dd4da1aL, 0xebe4dd6dL, 0x51b5d4f4L, 0xc785d383L, 0x56986c13L,
0xc0a86b64L, 0x7af962fdL, 0xecc9658aL, 0x4f5c0114L, 0xd96c0663L,
0x633d0ffaL, 0xf50d088dL, 0xc8206e3bL, 0x5e10694cL, 0xe44160d5L,
0x727167a2L, 0xd1e4033cL, 0x47d4044bL, 0xfd850dd2L, 0x6bb50aa5L,
0xfaa8b535L, 0x6c98b242L, 0xd6c9bbdbL, 0x40f9bcacL, 0xe36cd832L,
0x755cdf45L, 0xcf0dd6dcL, 0x593dd1abL, 0xac30d926L, 0x3a00de51L,
0x8051d7c8L, 0x1661d0bfL, 0xb5f4b421L, 0x23c4b356L, 0x9995bacfL,
0x0fa5bdb8L, 0x9eb80228L, 0x0888055fL, 0xb2d90cc6L, 0x24e90bb1L,
0x877c6f2fL, 0x114c6858L, 0xab1d61c1L, 0x3d2d66b6L, 0x9041dc76L,
0x0671db01L, 0xbc20d298L, 0x2a10d5efL, 0x8985b171L, 0x1fb5b606L,
0xa5e4bf9fL, 0x33d4b8e8L, 0xa2c90778L, 0x34f9000fL, 0x8ea80996L,
0x18980ee1L, 0xbb0d6a7fL, 0x2d3d6d08L, 0x976c6491L, 0x015c63e6L,
0xf4516b6bL, 0x62616c1cL, 0xd8306585L, 0x4e0062f2L, 0xed95066cL,
0x7ba5011bL, 0xc1f40882L, 0x57c40ff5L, 0xc6d9b065L, 0x50e9b712L,
0xeab8be8bL, 0x7c88b9fcL, 0xdf1ddd62L, 0x492dda15L, 0xf37cd38cL,
0x654cd4fbL, 0x5861b24dL, 0xce51b53aL, 0x7400bca3L, 0xe230bbd4L,
0x41a5df4aL, 0xd795d83dL, 0x6dc4d1a4L, 0xfbf4d6d3L, 0x6ae96943L,
0xfcd96e34L, 0x468867adL, 0xd0b860daL, 0x732d0444L, 0xe51d0333L,
0x5f4c0aaaL, 0xc97c0dddL, 0x3c710550L, 0xaa410227L, 0x10100bbeL,
0x86200cc9L, 0x25b56857L, 0xb3856f20L, 0x09d466b9L, 0x9fe461ceL,
0x0ef9de5eL, 0x98c9d929L, 0x2298d0b0L, 0xb4a8d7c7L, 0x173db359L,
0x810db42eL, 0x3b5cbdb7L, 0xad6cbac0L, 0x2083b8edL, 0xb6b3bf9aL,
0x0ce2b603L, 0x9ad2b174L, 0x3947d5eaL, 0xaf77d29dL, 0x1526db04L,
0x8316dc73L, 0x120b63e3L, 0x843b6494L, 0x3e6a6d0dL, 0xa85a6a7aL,
0x0bcf0ee4L, 0x9dff0993L, 0x27ae000aL, 0xb19e077dL, 0x44930ff0L,
0xd2a30887L, 0x68f2011eL, 0xfec20669L, 0x5d5762f7L, 0xcb676580L,
0x71366c19L, 0xe7066b6eL, 0x761bd4feL, 0xe02bd389L, 0x5a7ada10L,
0xcc4add67L, 0x6fdfb9f9L, 0xf9efbe8eL, 0x43beb717L, 0xd58eb060L,
0xe8a3d6d6L, 0x7e93d1a1L, 0xc4c2d838L, 0x52f2df4fL, 0xf167bbd1L,
0x6757bca6L, 0xdd06b53fL, 0x4b36b248L, 0xda2b0dd8L, 0x4c1b0aafL,
0xf64a0336L, 0x607a0441L, 0xc3ef60dfL, 0x55df67a8L, 0xef8e6e31L,
0x79be6946L, 0x8cb361cbL, 0x1a8366bcL, 0xa0d26f25L, 0x36e26852L,
0x95770cccL, 0x03470bbbL, 0xb9160222L, 0x2f260555L, 0xbe3bbac5L,
0x280bbdb2L, 0x925ab42bL, 0x046ab35cL, 0xa7ffd7c2L, 0x31cfd0b5L,
0x8b9ed92cL, 0x1daede5bL, 0xb0c2649bL, 0x26f263ecL, 0x9ca36a75L,
0x0a936d02L, 0xa906099cL, 0x3f360eebL, 0x85670772L, 0x13570005L,
0x824abf95L, 0x147ab8e2L, 0xae2bb17bL, 0x381bb60cL, 0x9b8ed292L,
0x0dbed5e5L, 0xb7efdc7cL, 0x21dfdb0bL, 0xd4d2d386L, 0x42e2d4f1L,
0xf8b3dd68L, 0x6e83da1fL, 0xcd16be81L, 0x5b26b9f6L, 0xe177b06fL,
0x7747b718L, 0xe65a0888L, 0x706a0fffL, 0xca3b0666L, 0x5c0b0111L,
0xff9e658fL, 0x69ae62f8L, 0xd3ff6b61L, 0x45cf6c16L, 0x78e20aa0L,
0xeed20dd7L, 0x5483044eL, 0xc2b30339L, 0x612667a7L, 0xf71660d0L,
0x4d476949L, 0xdb776e3eL, 0x4a6ad1aeL, 0xdc5ad6d9L, 0x660bdf40L,
0xf03bd837L, 0x53aebca9L, 0xc59ebbdeL, 0x7fcfb247L, 0xe9ffb530L,
0x1cf2bdbdL, 0x8ac2bacaL, 0x3093b353L, 0xa6a3b424L, 0x0536d0baL,
0x9306d7cdL, 0x2957de54L, 0xbf67d923L, 0x2e7a66b3L, 0xb84a61c4L,
0x021b685dL, 0x942b6f2aL, 0x37be0bb4L, 0xa18e0cc3L, 0x1bdf055aL,
0x8def022dL
#endif
};
CRC32::CRC32()
{
Reset();
}
void CRC32::Update(const byte *s, size_t n)
{
word32 crc = m_crc;
for(; !IsAligned<word32>(s) && n > 0; n--)
crc = m_tab[CRC32_INDEX(crc) ^ *s++] ^ CRC32_SHIFTED(crc);
while (n >= 4)
{
crc ^= *(const word32 *)s;
crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
crc = m_tab[CRC32_INDEX(crc)] ^ CRC32_SHIFTED(crc);
n -= 4;
s += 4;
}
while (n--)
crc = m_tab[CRC32_INDEX(crc) ^ *s++] ^ CRC32_SHIFTED(crc);
m_crc = crc;
}
void CRC32::TruncatedFinal(byte *hash, size_t size)
{
ThrowIfInvalidTruncatedSize(size);
m_crc ^= CRC32_NEGL;
for (size_t i=0; i<size; i++)
hash[i] = GetCrcByte(i);
Reset();
}
NAMESPACE_END

42
lib/cryptopp/crc.h
View File

@ -1,42 +0,0 @@
#ifndef CRYPTOPP_CRC32_H
#define CRYPTOPP_CRC32_H
#include "cryptlib.h"
NAMESPACE_BEGIN(CryptoPP)
const word32 CRC32_NEGL = 0xffffffffL;
#ifdef IS_LITTLE_ENDIAN
#define CRC32_INDEX(c) (c & 0xff)
#define CRC32_SHIFTED(c) (c >> 8)
#else
#define CRC32_INDEX(c) (c >> 24)
#define CRC32_SHIFTED(c) (c << 8)
#endif
//! CRC Checksum Calculation
class CRC32 : public HashTransformation
{
public:
CRYPTOPP_CONSTANT(DIGESTSIZE = 4)
CRC32();
void Update(const byte *input, size_t length);
void TruncatedFinal(byte *hash, size_t size);
unsigned int DigestSize() const {return DIGESTSIZE;}
static const char * StaticAlgorithmName() {return "CRC32";}
std::string AlgorithmName() const {return StaticAlgorithmName();}
void UpdateByte(byte b) {m_crc = m_tab[CRC32_INDEX(m_crc) ^ b] ^ CRC32_SHIFTED(m_crc);}
byte GetCrcByte(size_t i) const {return ((byte *)&(m_crc))[i];}
private:
void Reset() {m_crc = CRC32_NEGL;}
static const word32 m_tab[256];
word32 m_crc;
};
NAMESPACE_END
#endif

828
lib/cryptopp/cryptlib.cpp
View File

@ -1,828 +0,0 @@
// cryptlib.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "cryptlib.h"
#include "misc.h"
#include "filters.h"
#include "algparam.h"
#include "fips140.h"
#include "argnames.h"
#include "fltrimpl.h"
#include "trdlocal.h"
#include "osrng.h"
#include <memory>
NAMESPACE_BEGIN(CryptoPP)
CRYPTOPP_COMPILE_ASSERT(sizeof(byte) == 1);
CRYPTOPP_COMPILE_ASSERT(sizeof(word16) == 2);
CRYPTOPP_COMPILE_ASSERT(sizeof(word32) == 4);
CRYPTOPP_COMPILE_ASSERT(sizeof(word64) == 8);
#ifdef CRYPTOPP_NATIVE_DWORD_AVAILABLE
CRYPTOPP_COMPILE_ASSERT(sizeof(dword) == 2*sizeof(word));
#endif
const std::string DEFAULT_CHANNEL;
const std::string AAD_CHANNEL = "AAD";
const std::string &BufferedTransformation::NULL_CHANNEL = DEFAULT_CHANNEL;
class NullNameValuePairs : public NameValuePairs
{
public:
bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const {return false;}
};
simple_ptr<NullNameValuePairs> s_pNullNameValuePairs(new NullNameValuePairs);
const NameValuePairs &g_nullNameValuePairs = *s_pNullNameValuePairs.m_p;
BufferedTransformation & TheBitBucket()
{
static BitBucket bitBucket;
return bitBucket;
}
Algorithm::Algorithm(bool checkSelfTestStatus)
{
if (checkSelfTestStatus && FIPS_140_2_ComplianceEnabled())
{
if (GetPowerUpSelfTestStatus() == POWER_UP_SELF_TEST_NOT_DONE && !PowerUpSelfTestInProgressOnThisThread())
throw SelfTestFailure("Cryptographic algorithms are disabled before the power-up self tests are performed.");
if (GetPowerUpSelfTestStatus() == POWER_UP_SELF_TEST_FAILED)
throw SelfTestFailure("Cryptographic algorithms are disabled after a power-up self test failed.");
}
}
void SimpleKeyingInterface::SetKey(const byte *key, size_t length, const NameValuePairs &params)
{
this->ThrowIfInvalidKeyLength(length);
this->UncheckedSetKey(key, (unsigned int)length, params);
}
void SimpleKeyingInterface::SetKeyWithRounds(const byte *key, size_t length, int rounds)
{
SetKey(key, length, MakeParameters(Name::Rounds(), rounds));
}
void SimpleKeyingInterface::SetKeyWithIV(const byte *key, size_t length, const byte *iv, size_t ivLength)
{
SetKey(key, length, MakeParameters(Name::IV(), ConstByteArrayParameter(iv, ivLength)));
}
void SimpleKeyingInterface::ThrowIfInvalidKeyLength(size_t length)
{
if (!IsValidKeyLength(length))
throw InvalidKeyLength(GetAlgorithm().AlgorithmName(), length);
}
void SimpleKeyingInterface::ThrowIfResynchronizable()
{
if (IsResynchronizable())
throw InvalidArgument(GetAlgorithm().AlgorithmName() + ": this object requires an IV");
}
void SimpleKeyingInterface::ThrowIfInvalidIV(const byte *iv)
{
if (!iv && IVRequirement() == UNPREDICTABLE_RANDOM_IV)
throw InvalidArgument(GetAlgorithm().AlgorithmName() + ": this object cannot use a null IV");
}
size_t SimpleKeyingInterface::ThrowIfInvalidIVLength(int size)
{
if (size < 0)
return IVSize();
else if ((size_t)size < MinIVLength())
throw InvalidArgument(GetAlgorithm().AlgorithmName() + ": IV length " + IntToString(size) + " is less than the minimum of " + IntToString(MinIVLength()));
else if ((size_t)size > MaxIVLength())
throw InvalidArgument(GetAlgorithm().AlgorithmName() + ": IV length " + IntToString(size) + " exceeds the maximum of " + IntToString(MaxIVLength()));
else
return size;
}
const byte * SimpleKeyingInterface::GetIVAndThrowIfInvalid(const NameValuePairs &params, size_t &size)
{
ConstByteArrayParameter ivWithLength;
const byte *iv;
bool found = false;
try {found = params.GetValue(Name::IV(), ivWithLength);}
catch (const NameValuePairs::ValueTypeMismatch &) {}
if (found)
{
iv = ivWithLength.begin();
ThrowIfInvalidIV(iv);
size = ThrowIfInvalidIVLength((int)ivWithLength.size());
return iv;
}
else if (params.GetValue(Name::IV(), iv))
{
ThrowIfInvalidIV(iv);
size = IVSize();
return iv;
}
else
{
ThrowIfResynchronizable();
size = 0;
return NULL;
}
}
void SimpleKeyingInterface::GetNextIV(RandomNumberGenerator &rng, byte *IV)
{
rng.GenerateBlock(IV, IVSize());
}
size_t BlockTransformation::AdvancedProcessBlocks(const byte *inBlocks, const byte *xorBlocks, byte *outBlocks, size_t length, word32 flags) const
{
size_t blockSize = BlockSize();
size_t inIncrement = (flags & (BT_InBlockIsCounter|BT_DontIncrementInOutPointers)) ? 0 : blockSize;
size_t xorIncrement = xorBlocks ? blockSize : 0;
size_t outIncrement = (flags & BT_DontIncrementInOutPointers) ? 0 : blockSize;
if (flags & BT_ReverseDirection)
{
assert(length % blockSize == 0);
inBlocks += length - blockSize;
xorBlocks += length - blockSize;
outBlocks += length - blockSize;
inIncrement = 0-inIncrement;
xorIncrement = 0-xorIncrement;
outIncrement = 0-outIncrement;
}
while (length >= blockSize)
{
if (flags & BT_XorInput)
{
xorbuf(outBlocks, xorBlocks, inBlocks, blockSize);
ProcessBlock(outBlocks);
}
else
ProcessAndXorBlock(inBlocks, xorBlocks, outBlocks);
if (flags & BT_InBlockIsCounter)
const_cast<byte *>(inBlocks)[blockSize-1]++;
inBlocks += inIncrement;
outBlocks += outIncrement;
xorBlocks += xorIncrement;
length -= blockSize;
}
return length;
}
unsigned int BlockTransformation::OptimalDataAlignment() const
{
return GetAlignmentOf<word32>();
}
unsigned int StreamTransformation::OptimalDataAlignment() const
{
return GetAlignmentOf<word32>();
}
unsigned int HashTransformation::OptimalDataAlignment() const
{
return GetAlignmentOf<word32>();
}
void StreamTransformation::ProcessLastBlock(byte *outString, const byte *inString, size_t length)
{
assert(MinLastBlockSize() == 0); // this function should be overriden otherwise
if (length == MandatoryBlockSize())
ProcessData(outString, inString, length);
else if (length != 0)
throw NotImplemented(AlgorithmName() + ": this object does't support a special last block");
}
void AuthenticatedSymmetricCipher::SpecifyDataLengths(lword headerLength, lword messageLength, lword footerLength)
{
if (headerLength > MaxHeaderLength())
throw InvalidArgument(GetAlgorithm().AlgorithmName() + ": header length " + IntToString(headerLength) + " exceeds the maximum of " + IntToString(MaxHeaderLength()));
if (messageLength > MaxMessageLength())
throw InvalidArgument(GetAlgorithm().AlgorithmName() + ": message length " + IntToString(messageLength) + " exceeds the maximum of " + IntToString(MaxMessageLength()));
if (footerLength > MaxFooterLength())
throw InvalidArgument(GetAlgorithm().AlgorithmName() + ": footer length " + IntToString(footerLength) + " exceeds the maximum of " + IntToString(MaxFooterLength()));
UncheckedSpecifyDataLengths(headerLength, messageLength, footerLength);
}
void AuthenticatedSymmetricCipher::EncryptAndAuthenticate(byte *ciphertext, byte *mac, size_t macSize, const byte *iv, int ivLength, const byte *header, size_t headerLength, const byte *message, size_t messageLength)
{
Resynchronize(iv, ivLength);
SpecifyDataLengths(headerLength, messageLength);
Update(header, headerLength);
ProcessString(ciphertext, message, messageLength);
TruncatedFinal(mac, macSize);
}
bool AuthenticatedSymmetricCipher::DecryptAndVerify(byte *message, const byte *mac, size_t macLength, const byte *iv, int ivLength, const byte *header, size_t headerLength, const byte *ciphertext, size_t ciphertextLength)
{
Resynchronize(iv, ivLength);
SpecifyDataLengths(headerLength, ciphertextLength);
Update(header, headerLength);
ProcessString(message, ciphertext, ciphertextLength);
return TruncatedVerify(mac, macLength);
}
unsigned int RandomNumberGenerator::GenerateBit()
{
return GenerateByte() & 1;
}
byte RandomNumberGenerator::GenerateByte()
{
byte b;
GenerateBlock(&b, 1);
return b;
}
word32 RandomNumberGenerator::GenerateWord32(word32 min, word32 max)
{
word32 range = max-min;
const int maxBits = BitPrecision(range);
word32 value;
do
{
GenerateBlock((byte *)&value, sizeof(value));
value = Crop(value, maxBits);
} while (value > range);
return value+min;
}
void RandomNumberGenerator::GenerateBlock(byte *output, size_t size)
{
ArraySink s(output, size);
GenerateIntoBufferedTransformation(s, DEFAULT_CHANNEL, size);
}
void RandomNumberGenerator::DiscardBytes(size_t n)
{
GenerateIntoBufferedTransformation(TheBitBucket(), DEFAULT_CHANNEL, n);
}
void RandomNumberGenerator::GenerateIntoBufferedTransformation(BufferedTransformation &target, const std::string &channel, lword length)
{
FixedSizeSecBlock<byte, 256> buffer;
while (length)
{
size_t len = UnsignedMin(buffer.size(), length);
GenerateBlock(buffer, len);
target.ChannelPut(channel, buffer, len);
length -= len;
}
}
//! see NullRNG()
class ClassNullRNG : public RandomNumberGenerator
{
public:
std::string AlgorithmName() const {return "NullRNG";}
void GenerateBlock(byte *output, size_t size) {throw NotImplemented("NullRNG: NullRNG should only be passed to functions that don't need to generate random bytes");}
};
RandomNumberGenerator & NullRNG()
{
static ClassNullRNG s_nullRNG;
return s_nullRNG;
}
bool HashTransformation::TruncatedVerify(const byte *digestIn, size_t digestLength)
{
ThrowIfInvalidTruncatedSize(digestLength);
SecByteBlock digest(digestLength);
TruncatedFinal(digest, digestLength);
return VerifyBufsEqual(digest, digestIn, digestLength);
}
void HashTransformation::ThrowIfInvalidTruncatedSize(size_t size) const
{
if (size > DigestSize())
throw InvalidArgument("HashTransformation: can't truncate a " + IntToString(DigestSize()) + " byte digest to " + IntToString(size) + " bytes");
}
unsigned int BufferedTransformation::GetMaxWaitObjectCount() const
{
const BufferedTransformation *t = AttachedTransformation();
return t ? t->GetMaxWaitObjectCount() : 0;
}
void BufferedTransformation::GetWaitObjects(WaitObjectContainer &container, CallStack const& callStack)
{
BufferedTransformation *t = AttachedTransformation();
if (t)
t->GetWaitObjects(container, callStack); // reduce clutter by not adding to stack here
}
void BufferedTransformation::Initialize(const NameValuePairs &parameters, int propagation)
{
assert(!AttachedTransformation());
IsolatedInitialize(parameters);
}
bool BufferedTransformation::Flush(bool hardFlush, int propagation, bool blocking)
{
assert(!AttachedTransformation());
return IsolatedFlush(hardFlush, blocking);
}
bool BufferedTransformation::MessageSeriesEnd(int propagation, bool blocking)
{
assert(!AttachedTransformation());
return IsolatedMessageSeriesEnd(blocking);
}
byte * BufferedTransformation::ChannelCreatePutSpace(const std::string &channel, size_t &size)
{
if (channel.empty())
return CreatePutSpace(size);
else
throw NoChannelSupport(AlgorithmName());
}
size_t BufferedTransformation::ChannelPut2(const std::string &channel, const byte *begin, size_t length, int messageEnd, bool blocking)
{
if (channel.empty())
return Put2(begin, length, messageEnd, blocking);
else
throw NoChannelSupport(AlgorithmName());
}
size_t BufferedTransformation::ChannelPutModifiable2(const std::string &channel, byte *begin, size_t length, int messageEnd, bool blocking)
{
if (channel.empty())
return PutModifiable2(begin, length, messageEnd, blocking);
else
return ChannelPut2(channel, begin, length, messageEnd, blocking);
}
bool BufferedTransformation::ChannelFlush(const std::string &channel, bool completeFlush, int propagation, bool blocking)
{
if (channel.empty())
return Flush(completeFlush, propagation, blocking);
else
throw NoChannelSupport(AlgorithmName());
}
bool BufferedTransformation::ChannelMessageSeriesEnd(const std::string &channel, int propagation, bool blocking)
{
if (channel.empty())
return MessageSeriesEnd(propagation, blocking);
else
throw NoChannelSupport(AlgorithmName());
}
lword BufferedTransformation::MaxRetrievable() const
{
if (AttachedTransformation())
return AttachedTransformation()->MaxRetrievable();
else
return CopyTo(TheBitBucket());
}
bool BufferedTransformation::AnyRetrievable() const
{
if (AttachedTransformation())
return AttachedTransformation()->AnyRetrievable();
else
{
byte b;
return Peek(b) != 0;
}
}
size_t BufferedTransformation::Get(byte &outByte)
{
if (AttachedTransformation())
return AttachedTransformation()->Get(outByte);
else
return Get(&outByte, 1);
}
size_t BufferedTransformation::Get(byte *outString, size_t getMax)
{
if (AttachedTransformation())
return AttachedTransformation()->Get(outString, getMax);
else
{
ArraySink arraySink(outString, getMax);
return (size_t)TransferTo(arraySink, getMax);
}
}
size_t BufferedTransformation::Peek(byte &outByte) const
{
if (AttachedTransformation())
return AttachedTransformation()->Peek(outByte);
else
return Peek(&outByte, 1);
}
size_t BufferedTransformation::Peek(byte *outString, size_t peekMax) const
{
if (AttachedTransformation())
return AttachedTransformation()->Peek(outString, peekMax);
else
{
ArraySink arraySink(outString, peekMax);
return (size_t)CopyTo(arraySink, peekMax);
}
}
lword BufferedTransformation::Skip(lword skipMax)
{
if (AttachedTransformation())
return AttachedTransformation()->Skip(skipMax);
else
return TransferTo(TheBitBucket(), skipMax);
}
lword BufferedTransformation::TotalBytesRetrievable() const
{
if (AttachedTransformation())
return AttachedTransformation()->TotalBytesRetrievable();
else
return MaxRetrievable();
}
unsigned int BufferedTransformation::NumberOfMessages() const
{
if (AttachedTransformation())
return AttachedTransformation()->NumberOfMessages();
else
return CopyMessagesTo(TheBitBucket());
}
bool BufferedTransformation::AnyMessages() const
{
if (AttachedTransformation())
return AttachedTransformation()->AnyMessages();
else
return NumberOfMessages() != 0;
}
bool BufferedTransformation::GetNextMessage()
{
if (AttachedTransformation())
return AttachedTransformation()->GetNextMessage();
else
{
assert(!AnyMessages());
return false;
}
}
unsigned int BufferedTransformation::SkipMessages(unsigned int count)
{
if (AttachedTransformation())
return AttachedTransformation()->SkipMessages(count);
else
return TransferMessagesTo(TheBitBucket(), count);
}
size_t BufferedTransformation::TransferMessagesTo2(BufferedTransformation &target, unsigned int &messageCount, const std::string &channel, bool blocking)
{
if (AttachedTransformation())
return AttachedTransformation()->TransferMessagesTo2(target, messageCount, channel, blocking);
else
{
unsigned int maxMessages = messageCount;
for (messageCount=0; messageCount < maxMessages && AnyMessages(); messageCount++)
{
size_t blockedBytes;
lword transferredBytes;
while (AnyRetrievable())
{
transferredBytes = LWORD_MAX;
blockedBytes = TransferTo2(target, transferredBytes, channel, blocking);
if (blockedBytes > 0)
return blockedBytes;
}
if (target.ChannelMessageEnd(channel, GetAutoSignalPropagation(), blocking))
return 1;
bool result = GetNextMessage();
assert(result);
}
return 0;
}
}
unsigned int BufferedTransformation::CopyMessagesTo(BufferedTransformation &target, unsigned int count, const std::string &channel) const
{
if (AttachedTransformation())
return AttachedTransformation()->CopyMessagesTo(target, count, channel);
else
return 0;
}
void BufferedTransformation::SkipAll()
{
if (AttachedTransformation())
AttachedTransformation()->SkipAll();
else
{
while (SkipMessages()) {}
while (Skip()) {}
}
}
size_t BufferedTransformation::TransferAllTo2(BufferedTransformation &target, const std::string &channel, bool blocking)
{
if (AttachedTransformation())
return AttachedTransformation()->TransferAllTo2(target, channel, blocking);
else
{
assert(!NumberOfMessageSeries());
unsigned int messageCount;
do
{
messageCount = UINT_MAX;
size_t blockedBytes = TransferMessagesTo2(target, messageCount, channel, blocking);
if (blockedBytes)
return blockedBytes;
}
while (messageCount != 0);
lword byteCount;
do
{
byteCount = ULONG_MAX;
size_t blockedBytes = TransferTo2(target, byteCount, channel, blocking);
if (blockedBytes)
return blockedBytes;
}
while (byteCount != 0);
return 0;
}
}
void BufferedTransformation::CopyAllTo(BufferedTransformation &target, const std::string &channel) const
{
if (AttachedTransformation())
AttachedTransformation()->CopyAllTo(target, channel);
else
{
assert(!NumberOfMessageSeries());
while (CopyMessagesTo(target, UINT_MAX, channel)) {}
}
}
void BufferedTransformation::SetRetrievalChannel(const std::string &channel)
{
if (AttachedTransformation())
AttachedTransformation()->SetRetrievalChannel(channel);
}
size_t BufferedTransformation::ChannelPutWord16(const std::string &channel, word16 value, ByteOrder order, bool blocking)
{
PutWord(false, order, m_buf, value);
return ChannelPut(channel, m_buf, 2, blocking);
}
size_t BufferedTransformation::ChannelPutWord32(const std::string &channel, word32 value, ByteOrder order, bool blocking)
{
PutWord(false, order, m_buf, value);
return ChannelPut(channel, m_buf, 4, blocking);
}
size_t BufferedTransformation::PutWord16(word16 value, ByteOrder order, bool blocking)
{
return ChannelPutWord16(DEFAULT_CHANNEL, value, order, blocking);
}
size_t BufferedTransformation::PutWord32(word32 value, ByteOrder order, bool blocking)
{
return ChannelPutWord32(DEFAULT_CHANNEL, value, order, blocking);
}
size_t BufferedTransformation::PeekWord16(word16 &value, ByteOrder order) const
{
byte buf[2] = {0, 0};
size_t len = Peek(buf, 2);
if (order)
value = (buf[0] << 8) | buf[1];
else
value = (buf[1] << 8) | buf[0];
return len;
}
size_t BufferedTransformation::PeekWord32(word32 &value, ByteOrder order) const
{
byte buf[4] = {0, 0, 0, 0};
size_t len = Peek(buf, 4);
if (order)
value = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf [3];
else
value = (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf [0];
return len;
}
size_t BufferedTransformation::GetWord16(word16 &value, ByteOrder order)
{
return (size_t)Skip(PeekWord16(value, order));
}
size_t BufferedTransformation::GetWord32(word32 &value, ByteOrder order)
{
return (size_t)Skip(PeekWord32(value, order));
}
void BufferedTransformation::Attach(BufferedTransformation *newOut)
{
if (AttachedTransformation() && AttachedTransformation()->Attachable())
AttachedTransformation()->Attach(newOut);
else
Detach(newOut);
}
void GeneratableCryptoMaterial::GenerateRandomWithKeySize(RandomNumberGenerator &rng, unsigned int keySize)
{
GenerateRandom(rng, MakeParameters("KeySize", (int)keySize));
}
class PK_DefaultEncryptionFilter : public Unflushable<Filter>
{
public:
PK_DefaultEncryptionFilter(RandomNumberGenerator &rng, const PK_Encryptor &encryptor, BufferedTransformation *attachment, const NameValuePairs &parameters)
: m_rng(rng), m_encryptor(encryptor), m_parameters(parameters)
{
Detach(attachment);
}
size_t Put2(const byte *inString, size_t length, int messageEnd, bool blocking)
{
FILTER_BEGIN;
m_plaintextQueue.Put(inString, length);
if (messageEnd)
{
{
size_t plaintextLength;
if (!SafeConvert(m_plaintextQueue.CurrentSize(), plaintextLength))
throw InvalidArgument("PK_DefaultEncryptionFilter: plaintext too long");
size_t ciphertextLength = m_encryptor.CiphertextLength(plaintextLength);
SecByteBlock plaintext(plaintextLength);
m_plaintextQueue.Get(plaintext, plaintextLength);
m_ciphertext.resize(ciphertextLength);
m_encryptor.Encrypt(m_rng, plaintext, plaintextLength, m_ciphertext, m_parameters);
}
FILTER_OUTPUT(1, m_ciphertext, m_ciphertext.size(), messageEnd);
}
FILTER_END_NO_MESSAGE_END;
}
RandomNumberGenerator &m_rng;
const PK_Encryptor &m_encryptor;
const NameValuePairs &m_parameters;
ByteQueue m_plaintextQueue;
SecByteBlock m_ciphertext;
};
BufferedTransformation * PK_Encryptor::CreateEncryptionFilter(RandomNumberGenerator &rng, BufferedTransformation *attachment, const NameValuePairs &parameters) const
{
return new PK_DefaultEncryptionFilter(rng, *this, attachment, parameters);
}
class PK_DefaultDecryptionFilter : public Unflushable<Filter>
{
public:
PK_DefaultDecryptionFilter(RandomNumberGenerator &rng, const PK_Decryptor &decryptor, BufferedTransformation *attachment, const NameValuePairs &parameters)
: m_rng(rng), m_decryptor(decryptor), m_parameters(parameters)
{
Detach(attachment);
}
size_t Put2(const byte *inString, size_t length, int messageEnd, bool blocking)
{
FILTER_BEGIN;
m_ciphertextQueue.Put(inString, length);
if (messageEnd)
{
{
size_t ciphertextLength;
if (!SafeConvert(m_ciphertextQueue.CurrentSize(), ciphertextLength))
throw InvalidArgument("PK_DefaultDecryptionFilter: ciphertext too long");
size_t maxPlaintextLength = m_decryptor.MaxPlaintextLength(ciphertextLength);
SecByteBlock ciphertext(ciphertextLength);
m_ciphertextQueue.Get(ciphertext, ciphertextLength);
m_plaintext.resize(maxPlaintextLength);
m_result = m_decryptor.Decrypt(m_rng, ciphertext, ciphertextLength, m_plaintext, m_parameters);
if (!m_result.isValidCoding)
throw InvalidCiphertext(m_decryptor.AlgorithmName() + ": invalid ciphertext");
}
FILTER_OUTPUT(1, m_plaintext, m_result.messageLength, messageEnd);
}
FILTER_END_NO_MESSAGE_END;
}
RandomNumberGenerator &m_rng;
const PK_Decryptor &m_decryptor;
const NameValuePairs &m_parameters;
ByteQueue m_ciphertextQueue;
SecByteBlock m_plaintext;
DecodingResult m_result;
};
BufferedTransformation * PK_Decryptor::CreateDecryptionFilter(RandomNumberGenerator &rng, BufferedTransformation *attachment, const NameValuePairs &parameters) const
{
return new PK_DefaultDecryptionFilter(rng, *this, attachment, parameters);
}
size_t PK_Signer::Sign(RandomNumberGenerator &rng, PK_MessageAccumulator *messageAccumulator, byte *signature) const
{
std::auto_ptr<PK_MessageAccumulator> m(messageAccumulator);
return SignAndRestart(rng, *m, signature, false);
}
size_t PK_Signer::SignMessage(RandomNumberGenerator &rng, const byte *message, size_t messageLen, byte *signature) const
{
std::auto_ptr<PK_MessageAccumulator> m(NewSignatureAccumulator(rng));
m->Update(message, messageLen);
return SignAndRestart(rng, *m, signature, false);
}
size_t PK_Signer::SignMessageWithRecovery(RandomNumberGenerator &rng, const byte *recoverableMessage, size_t recoverableMessageLength,
const byte *nonrecoverableMessage, size_t nonrecoverableMessageLength, byte *signature) const
{
std::auto_ptr<PK_MessageAccumulator> m(NewSignatureAccumulator(rng));
InputRecoverableMessage(*m, recoverableMessage, recoverableMessageLength);
m->Update(nonrecoverableMessage, nonrecoverableMessageLength);
return SignAndRestart(rng, *m, signature, false);
}
bool PK_Verifier::Verify(PK_MessageAccumulator *messageAccumulator) const
{
std::auto_ptr<PK_MessageAccumulator> m(messageAccumulator);
return VerifyAndRestart(*m);
}
bool PK_Verifier::VerifyMessage(const byte *message, size_t messageLen, const byte *signature, size_t signatureLength) const
{
std::auto_ptr<PK_MessageAccumulator> m(NewVerificationAccumulator());
InputSignature(*m, signature, signatureLength);
m->Update(message, messageLen);
return VerifyAndRestart(*m);
}
DecodingResult PK_Verifier::Recover(byte *recoveredMessage, PK_MessageAccumulator *messageAccumulator) const
{
std::auto_ptr<PK_MessageAccumulator> m(messageAccumulator);
return RecoverAndRestart(recoveredMessage, *m);
}
DecodingResult PK_Verifier::RecoverMessage(byte *recoveredMessage,
const byte *nonrecoverableMessage, size_t nonrecoverableMessageLength,
const byte *signature, size_t signatureLength) const
{
std::auto_ptr<PK_MessageAccumulator> m(NewVerificationAccumulator());
InputSignature(*m, signature, signatureLength);
m->Update(nonrecoverableMessage, nonrecoverableMessageLength);
return RecoverAndRestart(recoveredMessage, *m);
}
void SimpleKeyAgreementDomain::GenerateKeyPair(RandomNumberGenerator &rng, byte *privateKey, byte *publicKey) const
{
GeneratePrivateKey(rng, privateKey);
GeneratePublicKey(rng, privateKey, publicKey);
}
void AuthenticatedKeyAgreementDomain::GenerateStaticKeyPair(RandomNumberGenerator &rng, byte *privateKey, byte *publicKey) const
{
GenerateStaticPrivateKey(rng, privateKey);
GenerateStaticPublicKey(rng, privateKey, publicKey);
}
void AuthenticatedKeyAgreementDomain::GenerateEphemeralKeyPair(RandomNumberGenerator &rng, byte *privateKey, byte *publicKey) const
{
GenerateEphemeralPrivateKey(rng, privateKey);
GenerateEphemeralPublicKey(rng, privateKey, publicKey);
}
NAMESPACE_END
#endif

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lib/cryptopp/cryptlib.h
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lib/cryptopp/default.cpp
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// default.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#include "default.h"
#include "queue.h"
#include <time.h>
#include <memory>
NAMESPACE_BEGIN(CryptoPP)
static const unsigned int MASH_ITERATIONS = 200;
static const unsigned int SALTLENGTH = 8;
static const unsigned int BLOCKSIZE = Default_BlockCipher::Encryption::BLOCKSIZE;
static const unsigned int KEYLENGTH = Default_BlockCipher::Encryption::DEFAULT_KEYLENGTH;
// The purpose of this function Mash() is to take an arbitrary length input
// string and *deterministicly* produce an arbitrary length output string such
// that (1) it looks random, (2) no information about the input is
// deducible from it, and (3) it contains as much entropy as it can hold, or
// the amount of entropy in the input string, whichever is smaller.
static void Mash(const byte *in, size_t inLen, byte *out, size_t outLen, int iterations)
{
if (BytePrecision(outLen) > 2)
throw InvalidArgument("Mash: output legnth too large");
size_t bufSize = RoundUpToMultipleOf(outLen, (size_t)DefaultHashModule::DIGESTSIZE);
byte b[2];
SecByteBlock buf(bufSize);
SecByteBlock outBuf(bufSize);
DefaultHashModule hash;
unsigned int i;
for(i=0; i<outLen; i+=DefaultHashModule::DIGESTSIZE)
{
b[0] = (byte) (i >> 8);
b[1] = (byte) i;
hash.Update(b, 2);
hash.Update(in, inLen);
hash.Final(outBuf+i);
}
while (iterations-- > 1)
{
memcpy(buf, outBuf, bufSize);
for (i=0; i<bufSize; i+=DefaultHashModule::DIGESTSIZE)
{
b[0] = (byte) (i >> 8);
b[1] = (byte) i;
hash.Update(b, 2);
hash.Update(buf, bufSize);
hash.Final(outBuf+i);
}
}
memcpy(out, outBuf, outLen);
}
static void GenerateKeyIV(const byte *passphrase, size_t passphraseLength, const byte *salt, size_t saltLength, byte *key, byte *IV)
{
SecByteBlock temp(passphraseLength+saltLength);
memcpy(temp, passphrase, passphraseLength);
memcpy(temp+passphraseLength, salt, saltLength);
SecByteBlock keyIV(KEYLENGTH+BLOCKSIZE);
Mash(temp, passphraseLength + saltLength, keyIV, KEYLENGTH+BLOCKSIZE, MASH_ITERATIONS);
memcpy(key, keyIV, KEYLENGTH);
memcpy(IV, keyIV+KEYLENGTH, BLOCKSIZE);
}
// ********************************************************
DefaultEncryptor::DefaultEncryptor(const char *passphrase, BufferedTransformation *attachment)
: ProxyFilter(NULL, 0, 0, attachment), m_passphrase((const byte *)passphrase, strlen(passphrase))
{
}
DefaultEncryptor::DefaultEncryptor(const byte *passphrase, size_t passphraseLength, BufferedTransformation *attachment)
: ProxyFilter(NULL, 0, 0, attachment), m_passphrase(passphrase, passphraseLength)
{
}
void DefaultEncryptor::FirstPut(const byte *)
{
// VC60 workaround: __LINE__ expansion bug
CRYPTOPP_COMPILE_ASSERT_INSTANCE(SALTLENGTH <= DefaultHashModule::DIGESTSIZE, 1);
CRYPTOPP_COMPILE_ASSERT_INSTANCE(BLOCKSIZE <= DefaultHashModule::DIGESTSIZE, 2);
SecByteBlock salt(DefaultHashModule::DIGESTSIZE), keyCheck(DefaultHashModule::DIGESTSIZE);
DefaultHashModule hash;
// use hash(passphrase | time | clock) as salt
hash.Update(m_passphrase, m_passphrase.size());
time_t t=time(0);
hash.Update((byte *)&t, sizeof(t));
clock_t c=clock();
hash.Update((byte *)&c, sizeof(c));
hash.Final(salt);
// use hash(passphrase | salt) as key check
hash.Update(m_passphrase, m_passphrase.size());
hash.Update(salt, SALTLENGTH);
hash.Final(keyCheck);
AttachedTransformation()->Put(salt, SALTLENGTH);
// mash passphrase and salt together into key and IV
SecByteBlock key(KEYLENGTH);
SecByteBlock IV(BLOCKSIZE);
GenerateKeyIV(m_passphrase, m_passphrase.size(), salt, SALTLENGTH, key, IV);
m_cipher.SetKeyWithIV(key, key.size(), IV);
SetFilter(new StreamTransformationFilter(m_cipher));
m_filter->Put(keyCheck, BLOCKSIZE);
}
void DefaultEncryptor::LastPut(const byte *inString, size_t length)
{
m_filter->MessageEnd();
}
// ********************************************************
DefaultDecryptor::DefaultDecryptor(const char *p, BufferedTransformation *attachment, bool throwException)
: ProxyFilter(NULL, SALTLENGTH+BLOCKSIZE, 0, attachment)
, m_state(WAITING_FOR_KEYCHECK)
, m_passphrase((const byte *)p, strlen(p))
, m_throwException(throwException)
{
}
DefaultDecryptor::DefaultDecryptor(const byte *passphrase, size_t passphraseLength, BufferedTransformation *attachment, bool throwException)
: ProxyFilter(NULL, SALTLENGTH+BLOCKSIZE, 0, attachment)
, m_state(WAITING_FOR_KEYCHECK)
, m_passphrase(passphrase, passphraseLength)
, m_throwException(throwException)
{
}
void DefaultDecryptor::FirstPut(const byte *inString)
{
CheckKey(inString, inString+SALTLENGTH);
}
void DefaultDecryptor::LastPut(const byte *inString, size_t length)
{
if (m_filter.get() == NULL)
{
m_state = KEY_BAD;
if (m_throwException)
throw KeyBadErr();
}
else
{
m_filter->MessageEnd();
m_state = WAITING_FOR_KEYCHECK;
}
}
void DefaultDecryptor::CheckKey(const byte *salt, const byte *keyCheck)
{
SecByteBlock check(STDMAX((unsigned int)2*BLOCKSIZE, (unsigned int)DefaultHashModule::DIGESTSIZE));
DefaultHashModule hash;
hash.Update(m_passphrase, m_passphrase.size());
hash.Update(salt, SALTLENGTH);
hash.Final(check);
SecByteBlock key(KEYLENGTH);
SecByteBlock IV(BLOCKSIZE);
GenerateKeyIV(m_passphrase, m_passphrase.size(), salt, SALTLENGTH, key, IV);
m_cipher.SetKeyWithIV(key, key.size(), IV);
std::auto_ptr<StreamTransformationFilter> decryptor(new StreamTransformationFilter(m_cipher));
decryptor->Put(keyCheck, BLOCKSIZE);
decryptor->ForceNextPut();
decryptor->Get(check+BLOCKSIZE, BLOCKSIZE);
SetFilter(decryptor.release());
if (!VerifyBufsEqual(check, check+BLOCKSIZE, BLOCKSIZE))
{
m_state = KEY_BAD;
if (m_throwException)
throw KeyBadErr();
}
else
m_state = KEY_GOOD;
}
// ********************************************************
static DefaultMAC * NewDefaultEncryptorMAC(const byte *passphrase, size_t passphraseLength)
{
size_t macKeyLength = DefaultMAC::StaticGetValidKeyLength(16);
SecByteBlock macKey(macKeyLength);
// since the MAC is encrypted there is no reason to mash the passphrase for many iterations
Mash(passphrase, passphraseLength, macKey, macKeyLength, 1);
return new DefaultMAC(macKey, macKeyLength);
}
DefaultEncryptorWithMAC::DefaultEncryptorWithMAC(const char *passphrase, BufferedTransformation *attachment)
: ProxyFilter(NULL, 0, 0, attachment)
, m_mac(NewDefaultEncryptorMAC((const byte *)passphrase, strlen(passphrase)))
{
SetFilter(new HashFilter(*m_mac, new DefaultEncryptor(passphrase), true));
}
DefaultEncryptorWithMAC::DefaultEncryptorWithMAC(const byte *passphrase, size_t passphraseLength, BufferedTransformation *attachment)
: ProxyFilter(NULL, 0, 0, attachment)
, m_mac(NewDefaultEncryptorMAC(passphrase, passphraseLength))
{
SetFilter(new HashFilter(*m_mac, new DefaultEncryptor(passphrase, passphraseLength), true));
}
void DefaultEncryptorWithMAC::LastPut(const byte *inString, size_t length)
{
m_filter->MessageEnd();
}
// ********************************************************
DefaultDecryptorWithMAC::DefaultDecryptorWithMAC(const char *passphrase, BufferedTransformation *attachment, bool throwException)
: ProxyFilter(NULL, 0, 0, attachment)
, m_mac(NewDefaultEncryptorMAC((const byte *)passphrase, strlen(passphrase)))
, m_throwException(throwException)
{
SetFilter(new DefaultDecryptor(passphrase, m_hashVerifier=new HashVerifier(*m_mac, NULL, HashVerifier::PUT_MESSAGE), throwException));
}
DefaultDecryptorWithMAC::DefaultDecryptorWithMAC(const byte *passphrase, size_t passphraseLength, BufferedTransformation *attachment, bool throwException)
: ProxyFilter(NULL, 0, 0, attachment)
, m_mac(NewDefaultEncryptorMAC(passphrase, passphraseLength))
, m_throwException(throwException)
{
SetFilter(new DefaultDecryptor(passphrase, passphraseLength, m_hashVerifier=new HashVerifier(*m_mac, NULL, HashVerifier::PUT_MESSAGE), throwException));
}
DefaultDecryptor::State DefaultDecryptorWithMAC::CurrentState() const
{
return static_cast<const DefaultDecryptor *>(m_filter.get())->CurrentState();
}
bool DefaultDecryptorWithMAC::CheckLastMAC() const
{
return m_hashVerifier->GetLastResult();
}
void DefaultDecryptorWithMAC::LastPut(const byte *inString, size_t length)
{
m_filter->MessageEnd();
if (m_throwException && !CheckLastMAC())
throw MACBadErr();
}
NAMESPACE_END

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lib/cryptopp/default.h
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#ifndef CRYPTOPP_DEFAULT_H
#define CRYPTOPP_DEFAULT_H
#include "sha.h"
#include "hmac.h"
#include "des.h"
#include "filters.h"
#include "modes.h"
NAMESPACE_BEGIN(CryptoPP)
typedef DES_EDE2 Default_BlockCipher;
typedef SHA DefaultHashModule;
typedef HMAC<DefaultHashModule> DefaultMAC;
//! Password-Based Encryptor using DES-EDE2
class DefaultEncryptor : public ProxyFilter
{
public:
DefaultEncryptor(const char *passphrase, BufferedTransformation *attachment = NULL);
DefaultEncryptor(const byte *passphrase, size_t passphraseLength, BufferedTransformation *attachment = NULL);
protected:
void FirstPut(const byte *);
void LastPut(const byte *inString, size_t length);
private:
SecByteBlock m_passphrase;
CBC_Mode<Default_BlockCipher>::Encryption m_cipher;
};
//! Password-Based Decryptor using DES-EDE2
class DefaultDecryptor : public ProxyFilter
{
public:
DefaultDecryptor(const char *passphrase, BufferedTransformation *attachment = NULL, bool throwException=true);
DefaultDecryptor(const byte *passphrase, size_t passphraseLength, BufferedTransformation *attachment = NULL, bool throwException=true);
class Err : public Exception
{
public:
Err(const std::string &s)
: Exception(DATA_INTEGRITY_CHECK_FAILED, s) {}
};
class KeyBadErr : public Err {public: KeyBadErr() : Err("DefaultDecryptor: cannot decrypt message with this passphrase") {}};
enum State {WAITING_FOR_KEYCHECK, KEY_GOOD, KEY_BAD};
State CurrentState() const {return m_state;}
protected:
void FirstPut(const byte *inString);
void LastPut(const byte *inString, size_t length);
State m_state;
private:
void CheckKey(const byte *salt, const byte *keyCheck);
SecByteBlock m_passphrase;
CBC_Mode<Default_BlockCipher>::Decryption m_cipher;
member_ptr<FilterWithBufferedInput> m_decryptor;
bool m_throwException;
};
//! Password-Based Encryptor using DES-EDE2 and HMAC/SHA-1
class DefaultEncryptorWithMAC : public ProxyFilter
{
public:
DefaultEncryptorWithMAC(const char *passphrase, BufferedTransformation *attachment = NULL);
DefaultEncryptorWithMAC(const byte *passphrase, size_t passphraseLength, BufferedTransformation *attachment = NULL);
protected:
void FirstPut(const byte *inString) {}
void LastPut(const byte *inString, size_t length);
private:
member_ptr<DefaultMAC> m_mac;
};
//! Password-Based Decryptor using DES-EDE2 and HMAC/SHA-1
class DefaultDecryptorWithMAC : public ProxyFilter
{
public:
class MACBadErr : public DefaultDecryptor::Err {public: MACBadErr() : DefaultDecryptor::Err("DefaultDecryptorWithMAC: MAC check failed") {}};
DefaultDecryptorWithMAC(const char *passphrase, BufferedTransformation *attachment = NULL, bool throwException=true);
DefaultDecryptorWithMAC(const byte *passphrase, size_t passphraseLength, BufferedTransformation *attachment = NULL, bool throwException=true);
DefaultDecryptor::State CurrentState() const;
bool CheckLastMAC() const;
protected:
void FirstPut(const byte *inString) {}
void LastPut(const byte *inString, size_t length);
private:
member_ptr<DefaultMAC> m_mac;
HashVerifier *m_hashVerifier;
bool m_throwException;
};
NAMESPACE_END
#endif

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lib/cryptopp/des.cpp
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// des.cpp - modified by Wei Dai from Phil Karn's des.c
// The original code and all modifications are in the public domain.
/*
* This is a major rewrite of my old public domain DES code written
* circa 1987, which in turn borrowed heavily from Jim Gillogly's 1977
* public domain code. I pretty much kept my key scheduling code, but
* the actual encrypt/decrypt routines are taken from from Richard
* Outerbridge's DES code as printed in Schneier's "Applied Cryptography."
*
* This code is in the public domain. I would appreciate bug reports and
* enhancements.
*
* Phil Karn KA9Q, karn@unix.ka9q.ampr.org, August 1994.
*/
#include "pch.h"
#include "misc.h"
#include "des.h"
NAMESPACE_BEGIN(CryptoPP)
typedef BlockGetAndPut<word32, BigEndian> Block;
// Richard Outerbridge's initial permutation algorithm
/*
inline void IPERM(word32 &left, word32 &right)
{
word32 work;
work = ((left >> 4) ^ right) & 0x0f0f0f0f;
right ^= work;
left ^= work << 4;
work = ((left >> 16) ^ right) & 0xffff;
right ^= work;
left ^= work << 16;
work = ((right >> 2) ^ left) & 0x33333333;
left ^= work;
right ^= (work << 2);
work = ((right >> 8) ^ left) & 0xff00ff;
left ^= work;
right ^= (work << 8);
right = rotl(right, 1);
work = (left ^ right) & 0xaaaaaaaa;
left ^= work;
right ^= work;
left = rotl(left, 1);
}
inline void FPERM(word32 &left, word32 &right)
{
word32 work;
right = rotr(right, 1);
work = (left ^ right) & 0xaaaaaaaa;
left ^= work;
right ^= work;
left = rotr(left, 1);
work = ((left >> 8) ^ right) & 0xff00ff;
right ^= work;
left ^= work << 8;
work = ((left >> 2) ^ right) & 0x33333333;
right ^= work;
left ^= work << 2;
work = ((right >> 16) ^ left) & 0xffff;
left ^= work;
right ^= work << 16;
work = ((right >> 4) ^ left) & 0x0f0f0f0f;
left ^= work;
right ^= work << 4;
}
*/
// Wei Dai's modification to Richard Outerbridge's initial permutation
// algorithm, this one is faster if you have access to rotate instructions
// (like in MSVC)
static inline void IPERM(word32 &left, word32 &right)
{
word32 work;
right = rotlFixed(right, 4U);
work = (left ^ right) & 0xf0f0f0f0;
left ^= work;
right = rotrFixed(right^work, 20U);
work = (left ^ right) & 0xffff0000;
left ^= work;
right = rotrFixed(right^work, 18U);
work = (left ^ right) & 0x33333333;
left ^= work;
right = rotrFixed(right^work, 6U);
work = (left ^ right) & 0x00ff00ff;
left ^= work;
right = rotlFixed(right^work, 9U);
work = (left ^ right) & 0xaaaaaaaa;
left = rotlFixed(left^work, 1U);
right ^= work;
}
static inline void FPERM(word32 &left, word32 &right)
{
word32 work;
right = rotrFixed(right, 1U);
work = (left ^ right) & 0xaaaaaaaa;
right ^= work;
left = rotrFixed(left^work, 9U);
work = (left ^ right) & 0x00ff00ff;
right ^= work;
left = rotlFixed(left^work, 6U);
work = (left ^ right) & 0x33333333;
right ^= work;
left = rotlFixed(left^work, 18U);
work = (left ^ right) & 0xffff0000;
right ^= work;
left = rotlFixed(left^work, 20U);
work = (left ^ right) & 0xf0f0f0f0;
right ^= work;
left = rotrFixed(left^work, 4U);
}
void DES::Base::UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &)
{
AssertValidKeyLength(length);
RawSetKey(GetCipherDirection(), userKey);
}
#ifndef CRYPTOPP_IMPORTS
/* Tables defined in the Data Encryption Standard documents
* Three of these tables, the initial permutation, the final
* permutation and the expansion operator, are regular enough that
* for speed, we hard-code them. They're here for reference only.
* Also, the S and P boxes are used by a separate program, gensp.c,
* to build the combined SP box, Spbox[]. They're also here just
* for reference.
*/
#ifdef notdef
/* initial permutation IP */
static byte ip[] = {
58, 50, 42, 34, 26, 18, 10, 2,
60, 52, 44, 36, 28, 20, 12, 4,
62, 54, 46, 38, 30, 22, 14, 6,
64, 56, 48, 40, 32, 24, 16, 8,
57, 49, 41, 33, 25, 17, 9, 1,
59, 51, 43, 35, 27, 19, 11, 3,
61, 53, 45, 37, 29, 21, 13, 5,
63, 55, 47, 39, 31, 23, 15, 7
};
/* final permutation IP^-1 */
static byte fp[] = {
40, 8, 48, 16, 56, 24, 64, 32,
39, 7, 47, 15, 55, 23, 63, 31,
38, 6, 46, 14, 54, 22, 62, 30,
37, 5, 45, 13, 53, 21, 61, 29,
36, 4, 44, 12, 52, 20, 60, 28,
35, 3, 43, 11, 51, 19, 59, 27,
34, 2, 42, 10, 50, 18, 58, 26,
33, 1, 41, 9, 49, 17, 57, 25
};
/* expansion operation matrix */
static byte ei[] = {
32, 1, 2, 3, 4, 5,
4, 5, 6, 7, 8, 9,
8, 9, 10, 11, 12, 13,
12, 13, 14, 15, 16, 17,
16, 17, 18, 19, 20, 21,
20, 21, 22, 23, 24, 25,
24, 25, 26, 27, 28, 29,
28, 29, 30, 31, 32, 1
};
/* The (in)famous S-boxes */
static byte sbox[8][64] = {
/* S1 */
14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7,
0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8,
4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0,
15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13,
/* S2 */
15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10,
3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5,
0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15,
13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9,
/* S3 */
10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8,
13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1,
13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7,
1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12,
/* S4 */
7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15,
13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9,
10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4,
3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14,
/* S5 */
2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9,
14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6,
4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14,
11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3,
/* S6 */
12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11,
10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8,
9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6,
4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13,
/* S7 */
4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1,
13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6,
1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2,
6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12,
/* S8 */
13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7,
1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2,
7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8,
2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11
};
/* 32-bit permutation function P used on the output of the S-boxes */
static byte p32i[] = {
16, 7, 20, 21,
29, 12, 28, 17,
1, 15, 23, 26,
5, 18, 31, 10,
2, 8, 24, 14,
32, 27, 3, 9,
19, 13, 30, 6,
22, 11, 4, 25
};
#endif
/* permuted choice table (key) */
static const byte pc1[] = {
57, 49, 41, 33, 25, 17, 9,
1, 58, 50, 42, 34, 26, 18,
10, 2, 59, 51, 43, 35, 27,
19, 11, 3, 60, 52, 44, 36,
63, 55, 47, 39, 31, 23, 15,
7, 62, 54, 46, 38, 30, 22,
14, 6, 61, 53, 45, 37, 29,
21, 13, 5, 28, 20, 12, 4
};
/* number left rotations of pc1 */
static const byte totrot[] = {
1,2,4,6,8,10,12,14,15,17,19,21,23,25,27,28
};
/* permuted choice key (table) */
static const byte pc2[] = {
14, 17, 11, 24, 1, 5,
3, 28, 15, 6, 21, 10,
23, 19, 12, 4, 26, 8,
16, 7, 27, 20, 13, 2,
41, 52, 31, 37, 47, 55,
30, 40, 51, 45, 33, 48,
44, 49, 39, 56, 34, 53,
46, 42, 50, 36, 29, 32
};
/* End of DES-defined tables */
/* bit 0 is left-most in byte */
static const int bytebit[] = {
0200,0100,040,020,010,04,02,01
};
/* Set key (initialize key schedule array) */
void RawDES::RawSetKey(CipherDir dir, const byte *key)
{
SecByteBlock buffer(56+56+8);
byte *const pc1m=buffer; /* place to modify pc1 into */
byte *const pcr=pc1m+56; /* place to rotate pc1 into */
byte *const ks=pcr+56;
register int i,j,l;
int m;
for (j=0; j<56; j++) { /* convert pc1 to bits of key */
l=pc1[j]-1; /* integer bit location */
m = l & 07; /* find bit */
pc1m[j]=(key[l>>3] & /* find which key byte l is in */
bytebit[m]) /* and which bit of that byte */
? 1 : 0; /* and store 1-bit result */
}
for (i=0; i<16; i++) { /* key chunk for each iteration */
memset(ks,0,8); /* Clear key schedule */
for (j=0; j<56; j++) /* rotate pc1 the right amount */
pcr[j] = pc1m[(l=j+totrot[i])<(j<28? 28 : 56) ? l: l-28];
/* rotate left and right halves independently */
for (j=0; j<48; j++){ /* select bits individually */
/* check bit that goes to ks[j] */
if (pcr[pc2[j]-1]){
/* mask it in if it's there */
l= j % 6;
ks[j/6] |= bytebit[l] >> 2;
}
}
/* Now convert to odd/even interleaved form for use in F */
k[2*i] = ((word32)ks[0] << 24)
| ((word32)ks[2] << 16)
| ((word32)ks[4] << 8)
| ((word32)ks[6]);
k[2*i+1] = ((word32)ks[1] << 24)
| ((word32)ks[3] << 16)
| ((word32)ks[5] << 8)
| ((word32)ks[7]);
}
if (dir==DECRYPTION) // reverse key schedule order
for (i=0; i<16; i+=2)
{
std::swap(k[i], k[32-2-i]);
std::swap(k[i+1], k[32-1-i]);
}
}
void RawDES::RawProcessBlock(word32 &l_, word32 &r_) const
{
word32 l = l_, r = r_;
const word32 *kptr=k;
for (unsigned i=0; i<8; i++)
{
word32 work = rotrFixed(r, 4U) ^ kptr[4*i+0];
l ^= Spbox[6][(work) & 0x3f]
^ Spbox[4][(work >> 8) & 0x3f]
^ Spbox[2][(work >> 16) & 0x3f]
^ Spbox[0][(work >> 24) & 0x3f];
work = r ^ kptr[4*i+1];
l ^= Spbox[7][(work) & 0x3f]
^ Spbox[5][(work >> 8) & 0x3f]
^ Spbox[3][(work >> 16) & 0x3f]
^ Spbox[1][(work >> 24) & 0x3f];
work = rotrFixed(l, 4U) ^ kptr[4*i+2];
r ^= Spbox[6][(work) & 0x3f]
^ Spbox[4][(work >> 8) & 0x3f]
^ Spbox[2][(work >> 16) & 0x3f]
^ Spbox[0][(work >> 24) & 0x3f];
work = l ^ kptr[4*i+3];
r ^= Spbox[7][(work) & 0x3f]
^ Spbox[5][(work >> 8) & 0x3f]
^ Spbox[3][(work >> 16) & 0x3f]
^ Spbox[1][(work >> 24) & 0x3f];
}
l_ = l; r_ = r;
}
void DES_EDE2::Base::UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &)
{
AssertValidKeyLength(length);
m_des1.RawSetKey(GetCipherDirection(), userKey);
m_des2.RawSetKey(ReverseCipherDir(GetCipherDirection()), userKey+8);
}
void DES_EDE2::Base::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
{
word32 l,r;
Block::Get(inBlock)(l)(r);
IPERM(l,r);
m_des1.RawProcessBlock(l, r);
m_des2.RawProcessBlock(r, l);
m_des1.RawProcessBlock(l, r);
FPERM(l,r);
Block::Put(xorBlock, outBlock)(r)(l);
}
void DES_EDE3::Base::UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &)
{
AssertValidKeyLength(length);
m_des1.RawSetKey(GetCipherDirection(), userKey + (IsForwardTransformation() ? 0 : 16));
m_des2.RawSetKey(ReverseCipherDir(GetCipherDirection()), userKey + 8);
m_des3.RawSetKey(GetCipherDirection(), userKey + (IsForwardTransformation() ? 16 : 0));
}
void DES_EDE3::Base::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
{
word32 l,r;
Block::Get(inBlock)(l)(r);
IPERM(l,r);
m_des1.RawProcessBlock(l, r);
m_des2.RawProcessBlock(r, l);
m_des3.RawProcessBlock(l, r);
FPERM(l,r);
Block::Put(xorBlock, outBlock)(r)(l);
}
#endif // #ifndef CRYPTOPP_IMPORTS
static inline bool CheckParity(byte b)
{
unsigned int a = b ^ (b >> 4);
return ((a ^ (a>>1) ^ (a>>2) ^ (a>>3)) & 1) == 1;
}
bool DES::CheckKeyParityBits(const byte *key)
{
for (unsigned int i=0; i<8; i++)
if (!CheckParity(key[i]))
return false;
return true;
}
void DES::CorrectKeyParityBits(byte *key)
{
for (unsigned int i=0; i<8; i++)
if (!CheckParity(key[i]))
key[i] ^= 1;
}
// Encrypt or decrypt a block of data in ECB mode
void DES::Base::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
{
word32 l,r;
Block::Get(inBlock)(l)(r);
IPERM(l,r);
RawProcessBlock(l, r);
FPERM(l,r);
Block::Put(xorBlock, outBlock)(r)(l);
}
void DES_XEX3::Base::UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs &)
{
AssertValidKeyLength(length);
if (!m_des.get())
m_des.reset(new DES::Encryption);
memcpy(m_x1, key + (IsForwardTransformation() ? 0 : 16), BLOCKSIZE);
m_des->RawSetKey(GetCipherDirection(), key + 8);
memcpy(m_x3, key + (IsForwardTransformation() ? 16 : 0), BLOCKSIZE);
}
void DES_XEX3::Base::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
{
xorbuf(outBlock, inBlock, m_x1, BLOCKSIZE);
m_des->ProcessAndXorBlock(outBlock, xorBlock, outBlock);
xorbuf(outBlock, m_x3, BLOCKSIZE);
}
NAMESPACE_END

144
lib/cryptopp/des.h
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@ -1,144 +0,0 @@
#ifndef CRYPTOPP_DES_H
#define CRYPTOPP_DES_H
/** \file
*/
#include "seckey.h"
#include "secblock.h"
NAMESPACE_BEGIN(CryptoPP)
class CRYPTOPP_DLL RawDES
{
public:
void RawSetKey(CipherDir direction, const byte *userKey);
void RawProcessBlock(word32 &l, word32 &r) const;
protected:
static const word32 Spbox[8][64];
FixedSizeSecBlock<word32, 32> k;
};
//! _
struct DES_Info : public FixedBlockSize<8>, public FixedKeyLength<8>
{
// disable DES in DLL version by not exporting this function
static const char * StaticAlgorithmName() {return "DES";}
};
/// <a href="http://www.weidai.com/scan-mirror/cs.html#DES">DES</a>
/*! The DES implementation in Crypto++ ignores the parity bits
(the least significant bits of each byte) in the key. However
you can use CheckKeyParityBits() and CorrectKeyParityBits() to
check or correct the parity bits if you wish. */
class DES : public DES_Info, public BlockCipherDocumentation
{
class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<DES_Info>, public RawDES
{
public:
void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &params);
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
};
public:
//! check DES key parity bits
static bool CheckKeyParityBits(const byte *key);
//! correct DES key parity bits
static void CorrectKeyParityBits(byte *key);
typedef BlockCipherFinal<ENCRYPTION, Base> Encryption;
typedef BlockCipherFinal<DECRYPTION, Base> Decryption;
};
//! _
struct DES_EDE2_Info : public FixedBlockSize<8>, public FixedKeyLength<16>
{
CRYPTOPP_DLL static const char * CRYPTOPP_API StaticAlgorithmName() {return "DES-EDE2";}
};
/// <a href="http://www.weidai.com/scan-mirror/cs.html#DESede">DES-EDE2</a>
class DES_EDE2 : public DES_EDE2_Info, public BlockCipherDocumentation
{
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<DES_EDE2_Info>
{
public:
void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &params);
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
protected:
RawDES m_des1, m_des2;
};
public:
typedef BlockCipherFinal<ENCRYPTION, Base> Encryption;
typedef BlockCipherFinal<DECRYPTION, Base> Decryption;
};
//! _
struct DES_EDE3_Info : public FixedBlockSize<8>, public FixedKeyLength<24>
{
CRYPTOPP_DLL static const char * CRYPTOPP_API StaticAlgorithmName() {return "DES-EDE3";}
};
/// <a href="http://www.weidai.com/scan-mirror/cs.html#DESede">DES-EDE3</a>
class DES_EDE3 : public DES_EDE3_Info, public BlockCipherDocumentation
{
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<DES_EDE3_Info>
{
public:
void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &params);
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
protected:
RawDES m_des1, m_des2, m_des3;
};
public:
typedef BlockCipherFinal<ENCRYPTION, Base> Encryption;
typedef BlockCipherFinal<DECRYPTION, Base> Decryption;
};
//! _
struct DES_XEX3_Info : public FixedBlockSize<8>, public FixedKeyLength<24>
{
static const char *StaticAlgorithmName() {return "DES-XEX3";}
};
/// <a href="http://www.weidai.com/scan-mirror/cs.html#DESX">DES-XEX3</a>, AKA DESX
class DES_XEX3 : public DES_XEX3_Info, public BlockCipherDocumentation
{
class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<DES_XEX3_Info>
{
public:
void UncheckedSetKey(const byte *userKey, unsigned int length, const NameValuePairs &params);
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
protected:
FixedSizeSecBlock<byte, BLOCKSIZE> m_x1, m_x3;
// VS2005 workaround: calling modules compiled with /clr gets unresolved external symbol DES::Base::ProcessAndXorBlock
// if we use DES::Encryption here directly without value_ptr.
value_ptr<DES::Encryption> m_des;
};
public:
typedef BlockCipherFinal<ENCRYPTION, Base> Encryption;
typedef BlockCipherFinal<DECRYPTION, Base> Decryption;
};
typedef DES::Encryption DESEncryption;
typedef DES::Decryption DESDecryption;
typedef DES_EDE2::Encryption DES_EDE2_Encryption;
typedef DES_EDE2::Decryption DES_EDE2_Decryption;
typedef DES_EDE3::Encryption DES_EDE3_Encryption;
typedef DES_EDE3::Decryption DES_EDE3_Decryption;
typedef DES_XEX3::Encryption DES_XEX3_Encryption;
typedef DES_XEX3::Decryption DES_XEX3_Decryption;
NAMESPACE_END
#endif

95
lib/cryptopp/dessp.cpp
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@ -1,95 +0,0 @@
// This file is mostly generated by Phil Karn's gensp.c
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "des.h"
NAMESPACE_BEGIN(CryptoPP)
// VC60 workaround: gives a C4786 warning without this function
// when runtime lib is set to multithread debug DLL
// even though warning 4786 is disabled!
void DES_VC60Workaround()
{
}
const word32 RawDES::Spbox[8][64] = {
{
0x01010400,0x00000000,0x00010000,0x01010404, 0x01010004,0x00010404,0x00000004,0x00010000,
0x00000400,0x01010400,0x01010404,0x00000400, 0x01000404,0x01010004,0x01000000,0x00000004,
0x00000404,0x01000400,0x01000400,0x00010400, 0x00010400,0x01010000,0x01010000,0x01000404,
0x00010004,0x01000004,0x01000004,0x00010004, 0x00000000,0x00000404,0x00010404,0x01000000,
0x00010000,0x01010404,0x00000004,0x01010000, 0x01010400,0x01000000,0x01000000,0x00000400,
0x01010004,0x00010000,0x00010400,0x01000004, 0x00000400,0x00000004,0x01000404,0x00010404,
0x01010404,0x00010004,0x01010000,0x01000404, 0x01000004,0x00000404,0x00010404,0x01010400,
0x00000404,0x01000400,0x01000400,0x00000000, 0x00010004,0x00010400,0x00000000,0x01010004},
{
0x80108020,0x80008000,0x00008000,0x00108020, 0x00100000,0x00000020,0x80100020,0x80008020,
0x80000020,0x80108020,0x80108000,0x80000000, 0x80008000,0x00100000,0x00000020,0x80100020,
0x00108000,0x00100020,0x80008020,0x00000000, 0x80000000,0x00008000,0x00108020,0x80100000,
0x00100020,0x80000020,0x00000000,0x00108000, 0x00008020,0x80108000,0x80100000,0x00008020,
0x00000000,0x00108020,0x80100020,0x00100000, 0x80008020,0x80100000,0x80108000,0x00008000,
0x80100000,0x80008000,0x00000020,0x80108020, 0x00108020,0x00000020,0x00008000,0x80000000,
0x00008020,0x80108000,0x00100000,0x80000020, 0x00100020,0x80008020,0x80000020,0x00100020,
0x00108000,0x00000000,0x80008000,0x00008020, 0x80000000,0x80100020,0x80108020,0x00108000},
{
0x00000208,0x08020200,0x00000000,0x08020008, 0x08000200,0x00000000,0x00020208,0x08000200,
0x00020008,0x08000008,0x08000008,0x00020000, 0x08020208,0x00020008,0x08020000,0x00000208,
0x08000000,0x00000008,0x08020200,0x00000200, 0x00020200,0x08020000,0x08020008,0x00020208,
0x08000208,0x00020200,0x00020000,0x08000208, 0x00000008,0x08020208,0x00000200,0x08000000,
0x08020200,0x08000000,0x00020008,0x00000208, 0x00020000,0x08020200,0x08000200,0x00000000,
0x00000200,0x00020008,0x08020208,0x08000200, 0x08000008,0x00000200,0x00000000,0x08020008,
0x08000208,0x00020000,0x08000000,0x08020208, 0x00000008,0x00020208,0x00020200,0x08000008,
0x08020000,0x08000208,0x00000208,0x08020000, 0x00020208,0x00000008,0x08020008,0x00020200},
{
0x00802001,0x00002081,0x00002081,0x00000080, 0x00802080,0x00800081,0x00800001,0x00002001,
0x00000000,0x00802000,0x00802000,0x00802081, 0x00000081,0x00000000,0x00800080,0x00800001,
0x00000001,0x00002000,0x00800000,0x00802001, 0x00000080,0x00800000,0x00002001,0x00002080,
0x00800081,0x00000001,0x00002080,0x00800080, 0x00002000,0x00802080,0x00802081,0x00000081,
0x00800080,0x00800001,0x00802000,0x00802081, 0x00000081,0x00000000,0x00000000,0x00802000,
0x00002080,0x00800080,0x00800081,0x00000001, 0x00802001,0x00002081,0x00002081,0x00000080,
0x00802081,0x00000081,0x00000001,0x00002000, 0x00800001,0x00002001,0x00802080,0x00800081,
0x00002001,0x00002080,0x00800000,0x00802001, 0x00000080,0x00800000,0x00002000,0x00802080},
{
0x00000100,0x02080100,0x02080000,0x42000100, 0x00080000,0x00000100,0x40000000,0x02080000,
0x40080100,0x00080000,0x02000100,0x40080100, 0x42000100,0x42080000,0x00080100,0x40000000,
0x02000000,0x40080000,0x40080000,0x00000000, 0x40000100,0x42080100,0x42080100,0x02000100,
0x42080000,0x40000100,0x00000000,0x42000000, 0x02080100,0x02000000,0x42000000,0x00080100,
0x00080000,0x42000100,0x00000100,0x02000000, 0x40000000,0x02080000,0x42000100,0x40080100,
0x02000100,0x40000000,0x42080000,0x02080100, 0x40080100,0x00000100,0x02000000,0x42080000,
0x42080100,0x00080100,0x42000000,0x42080100, 0x02080000,0x00000000,0x40080000,0x42000000,
0x00080100,0x02000100,0x40000100,0x00080000, 0x00000000,0x40080000,0x02080100,0x40000100},
{
0x20000010,0x20400000,0x00004000,0x20404010, 0x20400000,0x00000010,0x20404010,0x00400000,
0x20004000,0x00404010,0x00400000,0x20000010, 0x00400010,0x20004000,0x20000000,0x00004010,
0x00000000,0x00400010,0x20004010,0x00004000, 0x00404000,0x20004010,0x00000010,0x20400010,
0x20400010,0x00000000,0x00404010,0x20404000, 0x00004010,0x00404000,0x20404000,0x20000000,
0x20004000,0x00000010,0x20400010,0x00404000, 0x20404010,0x00400000,0x00004010,0x20000010,
0x00400000,0x20004000,0x20000000,0x00004010, 0x20000010,0x20404010,0x00404000,0x20400000,
0x00404010,0x20404000,0x00000000,0x20400010, 0x00000010,0x00004000,0x20400000,0x00404010,
0x00004000,0x00400010,0x20004010,0x00000000, 0x20404000,0x20000000,0x00400010,0x20004010},
{
0x00200000,0x04200002,0x04000802,0x00000000, 0x00000800,0x04000802,0x00200802,0x04200800,
0x04200802,0x00200000,0x00000000,0x04000002, 0x00000002,0x04000000,0x04200002,0x00000802,
0x04000800,0x00200802,0x00200002,0x04000800, 0x04000002,0x04200000,0x04200800,0x00200002,
0x04200000,0x00000800,0x00000802,0x04200802, 0x00200800,0x00000002,0x04000000,0x00200800,
0x04000000,0x00200800,0x00200000,0x04000802, 0x04000802,0x04200002,0x04200002,0x00000002,
0x00200002,0x04000000,0x04000800,0x00200000, 0x04200800,0x00000802,0x00200802,0x04200800,
0x00000802,0x04000002,0x04200802,0x04200000, 0x00200800,0x00000000,0x00000002,0x04200802,
0x00000000,0x00200802,0x04200000,0x00000800, 0x04000002,0x04000800,0x00000800,0x00200002},
{
0x10001040,0x00001000,0x00040000,0x10041040, 0x10000000,0x10001040,0x00000040,0x10000000,
0x00040040,0x10040000,0x10041040,0x00041000, 0x10041000,0x00041040,0x00001000,0x00000040,
0x10040000,0x10000040,0x10001000,0x00001040, 0x00041000,0x00040040,0x10040040,0x10041000,
0x00001040,0x00000000,0x00000000,0x10040040, 0x10000040,0x10001000,0x00041040,0x00040000,
0x00041040,0x00040000,0x10041000,0x00001000, 0x00000040,0x10040040,0x00001000,0x00041040,
0x10001000,0x00000040,0x10000040,0x10040000, 0x10040040,0x10000000,0x00040000,0x10001040,
0x00000000,0x10041040,0x00040040,0x10000040, 0x10040000,0x10001000,0x10001040,0x00000000,
0x10041040,0x00041000,0x00041000,0x00001040, 0x00001040,0x00040040,0x10000000,0x10041000}
};
NAMESPACE_END
#endif

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// dh.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "dh.h"
NAMESPACE_BEGIN(CryptoPP)
void DH_TestInstantiations()
{
DH dh1;
DH dh2(NullRNG(), 10);
}
NAMESPACE_END
#endif

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lib/cryptopp/dh.h
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#ifndef CRYPTOPP_DH_H
#define CRYPTOPP_DH_H
/** \file
*/
#include "gfpcrypt.h"
NAMESPACE_BEGIN(CryptoPP)
//! ,
template <class GROUP_PARAMETERS, class COFACTOR_OPTION = CPP_TYPENAME GROUP_PARAMETERS::DefaultCofactorOption>
class DH_Domain : public DL_SimpleKeyAgreementDomainBase<typename GROUP_PARAMETERS::Element>
{
typedef DL_SimpleKeyAgreementDomainBase<typename GROUP_PARAMETERS::Element> Base;
public:
typedef GROUP_PARAMETERS GroupParameters;
typedef typename GroupParameters::Element Element;
typedef DL_KeyAgreementAlgorithm_DH<Element, COFACTOR_OPTION> DH_Algorithm;
typedef DH_Domain<GROUP_PARAMETERS, COFACTOR_OPTION> Domain;
DH_Domain() {}
DH_Domain(const GroupParameters &params)
: m_groupParameters(params) {}
DH_Domain(BufferedTransformation &bt)
{m_groupParameters.BERDecode(bt);}
template <class T2>
DH_Domain(RandomNumberGenerator &v1, const T2 &v2)
{m_groupParameters.Initialize(v1, v2);}
template <class T2, class T3>
DH_Domain(RandomNumberGenerator &v1, const T2 &v2, const T3 &v3)
{m_groupParameters.Initialize(v1, v2, v3);}
template <class T2, class T3, class T4>
DH_Domain(RandomNumberGenerator &v1, const T2 &v2, const T3 &v3, const T4 &v4)
{m_groupParameters.Initialize(v1, v2, v3, v4);}
template <class T1, class T2>
DH_Domain(const T1 &v1, const T2 &v2)
{m_groupParameters.Initialize(v1, v2);}
template <class T1, class T2, class T3>
DH_Domain(const T1 &v1, const T2 &v2, const T3 &v3)
{m_groupParameters.Initialize(v1, v2, v3);}
template <class T1, class T2, class T3, class T4>
DH_Domain(const T1 &v1, const T2 &v2, const T3 &v3, const T4 &v4)
{m_groupParameters.Initialize(v1, v2, v3, v4);}
const GroupParameters & GetGroupParameters() const {return m_groupParameters;}
GroupParameters & AccessGroupParameters() {return m_groupParameters;}
void GeneratePublicKey(RandomNumberGenerator &rng, const byte *privateKey, byte *publicKey) const
{
Base::GeneratePublicKey(rng, privateKey, publicKey);
if (FIPS_140_2_ComplianceEnabled())
{
SecByteBlock privateKey2(this->PrivateKeyLength());
this->GeneratePrivateKey(rng, privateKey2);
SecByteBlock publicKey2(this->PublicKeyLength());
Base::GeneratePublicKey(rng, privateKey2, publicKey2);
SecByteBlock agreedValue(this->AgreedValueLength()), agreedValue2(this->AgreedValueLength());
bool agreed1 = this->Agree(agreedValue, privateKey, publicKey2);
bool agreed2 = this->Agree(agreedValue2, privateKey2, publicKey);
if (!agreed1 || !agreed2 || agreedValue != agreedValue2)
throw SelfTestFailure(this->AlgorithmName() + ": pairwise consistency test failed");
}
}
static std::string CRYPTOPP_API StaticAlgorithmName()
{return GroupParameters::StaticAlgorithmNamePrefix() + DH_Algorithm::StaticAlgorithmName();}
std::string AlgorithmName() const {return StaticAlgorithmName();}
private:
const DL_KeyAgreementAlgorithm<Element> & GetKeyAgreementAlgorithm() const
{return Singleton<DH_Algorithm>().Ref();}
DL_GroupParameters<Element> & AccessAbstractGroupParameters()
{return m_groupParameters;}
GroupParameters m_groupParameters;
};
CRYPTOPP_DLL_TEMPLATE_CLASS DH_Domain<DL_GroupParameters_GFP_DefaultSafePrime>;
//! <a href="http://www.weidai.com/scan-mirror/ka.html#DH">Diffie-Hellman</a> in GF(p) with key validation
typedef DH_Domain<DL_GroupParameters_GFP_DefaultSafePrime> DH;
NAMESPACE_END
#endif

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// dh2.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#include "dh2.h"
NAMESPACE_BEGIN(CryptoPP)
void DH2_TestInstantiations()
{
DH2 dh(*(SimpleKeyAgreementDomain*)NULL);
}
bool DH2::Agree(byte *agreedValue,
const byte *staticSecretKey, const byte *ephemeralSecretKey,
const byte *staticOtherPublicKey, const byte *ephemeralOtherPublicKey,
bool validateStaticOtherPublicKey) const
{
return d1.Agree(agreedValue, staticSecretKey, staticOtherPublicKey, validateStaticOtherPublicKey)
&& d2.Agree(agreedValue+d1.AgreedValueLength(), ephemeralSecretKey, ephemeralOtherPublicKey, true);
}
NAMESPACE_END

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lib/cryptopp/dh2.h
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#ifndef CRYPTOPP_DH2_H
#define CRYPTOPP_DH2_H
/** \file
*/
#include "cryptlib.h"
NAMESPACE_BEGIN(CryptoPP)
/// <a href="http://www.weidai.com/scan-mirror/ka.html#DH2">Unified Diffie-Hellman</a>
class DH2 : public AuthenticatedKeyAgreementDomain
{
public:
DH2(SimpleKeyAgreementDomain &domain)
: d1(domain), d2(domain) {}
DH2(SimpleKeyAgreementDomain &staticDomain, SimpleKeyAgreementDomain &ephemeralDomain)
: d1(staticDomain), d2(ephemeralDomain) {}
CryptoParameters & AccessCryptoParameters() {return d1.AccessCryptoParameters();}
unsigned int AgreedValueLength() const
{return d1.AgreedValueLength() + d2.AgreedValueLength();}
unsigned int StaticPrivateKeyLength() const
{return d1.PrivateKeyLength();}
unsigned int StaticPublicKeyLength() const
{return d1.PublicKeyLength();}
void GenerateStaticPrivateKey(RandomNumberGenerator &rng, byte *privateKey) const
{d1.GeneratePrivateKey(rng, privateKey);}
void GenerateStaticPublicKey(RandomNumberGenerator &rng, const byte *privateKey, byte *publicKey) const
{d1.GeneratePublicKey(rng, privateKey, publicKey);}
void GenerateStaticKeyPair(RandomNumberGenerator &rng, byte *privateKey, byte *publicKey) const
{d1.GenerateKeyPair(rng, privateKey, publicKey);}
unsigned int EphemeralPrivateKeyLength() const
{return d2.PrivateKeyLength();}
unsigned int EphemeralPublicKeyLength() const
{return d2.PublicKeyLength();}
void GenerateEphemeralPrivateKey(RandomNumberGenerator &rng, byte *privateKey) const
{d2.GeneratePrivateKey(rng, privateKey);}
void GenerateEphemeralPublicKey(RandomNumberGenerator &rng, const byte *privateKey, byte *publicKey) const
{d2.GeneratePublicKey(rng, privateKey, publicKey);}
void GenerateEphemeralKeyPair(RandomNumberGenerator &rng, byte *privateKey, byte *publicKey) const
{d2.GenerateKeyPair(rng, privateKey, publicKey);}
bool Agree(byte *agreedValue,
const byte *staticPrivateKey, const byte *ephemeralPrivateKey,
const byte *staticOtherPublicKey, const byte *ephemeralOtherPublicKey,
bool validateStaticOtherPublicKey=true) const;
protected:
SimpleKeyAgreementDomain &d1, &d2;
};
NAMESPACE_END
#endif

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// dll.cpp - written and placed in the public domain by Wei Dai
#define CRYPTOPP_MANUALLY_INSTANTIATE_TEMPLATES
#define CRYPTOPP_DEFAULT_NO_DLL
#include "dll.h"
#pragma warning(default: 4660)
#if defined(CRYPTOPP_EXPORTS) && defined(CRYPTOPP_WIN32_AVAILABLE)
#include <windows.h>
#endif
#ifndef CRYPTOPP_IMPORTS
NAMESPACE_BEGIN(CryptoPP)
template<> const byte PKCS_DigestDecoration<SHA1>::decoration[] = {0x30,0x21,0x30,0x09,0x06,0x05,0x2B,0x0E,0x03,0x02,0x1A,0x05,0x00,0x04,0x14};
template<> const unsigned int PKCS_DigestDecoration<SHA1>::length = sizeof(PKCS_DigestDecoration<SHA1>::decoration);
template<> const byte PKCS_DigestDecoration<SHA224>::decoration[] = {0x30,0x2d,0x30,0x0d,0x06,0x09,0x60,0x86,0x48,0x01,0x65,0x03,0x04,0x02,0x04,0x05,0x00,0x04,0x1c};
template<> const unsigned int PKCS_DigestDecoration<SHA224>::length = sizeof(PKCS_DigestDecoration<SHA224>::decoration);
template<> const byte PKCS_DigestDecoration<SHA256>::decoration[] = {0x30,0x31,0x30,0x0d,0x06,0x09,0x60,0x86,0x48,0x01,0x65,0x03,0x04,0x02,0x01,0x05,0x00,0x04,0x20};
template<> const unsigned int PKCS_DigestDecoration<SHA256>::length = sizeof(PKCS_DigestDecoration<SHA256>::decoration);
template<> const byte PKCS_DigestDecoration<SHA384>::decoration[] = {0x30,0x41,0x30,0x0d,0x06,0x09,0x60,0x86,0x48,0x01,0x65,0x03,0x04,0x02,0x02,0x05,0x00,0x04,0x30};
template<> const unsigned int PKCS_DigestDecoration<SHA384>::length = sizeof(PKCS_DigestDecoration<SHA384>::decoration);
template<> const byte PKCS_DigestDecoration<SHA512>::decoration[] = {0x30,0x51,0x30,0x0d,0x06,0x09,0x60,0x86,0x48,0x01,0x65,0x03,0x04,0x02,0x03,0x05,0x00,0x04,0x40};
template<> const unsigned int PKCS_DigestDecoration<SHA512>::length = sizeof(PKCS_DigestDecoration<SHA512>::decoration);
template<> const byte EMSA2HashId<SHA>::id = 0x33;
template<> const byte EMSA2HashId<SHA224>::id = 0x38;
template<> const byte EMSA2HashId<SHA256>::id = 0x34;
template<> const byte EMSA2HashId<SHA384>::id = 0x36;
template<> const byte EMSA2HashId<SHA512>::id = 0x35;
NAMESPACE_END
#endif
#ifdef CRYPTOPP_EXPORTS
USING_NAMESPACE(CryptoPP)
#if !(defined(_MSC_VER) && (_MSC_VER < 1300))
using std::set_new_handler;
#endif
static PNew s_pNew = NULL;
static PDelete s_pDelete = NULL;
static void * New (size_t size)
{
void *p;
while (!(p = malloc(size)))
CallNewHandler();
return p;
}
static void SetNewAndDeleteFunctionPointers()
{
void *p = NULL;
HMODULE hModule = NULL;
MEMORY_BASIC_INFORMATION mbi;
while (true)
{
VirtualQuery(p, &mbi, sizeof(mbi));
if (p >= (char *)mbi.BaseAddress + mbi.RegionSize)
break;
p = (char *)mbi.BaseAddress + mbi.RegionSize;
if (!mbi.AllocationBase || mbi.AllocationBase == hModule)
continue;
hModule = HMODULE(mbi.AllocationBase);
PGetNewAndDelete pGetNewAndDelete = (PGetNewAndDelete)GetProcAddress(hModule, "GetNewAndDeleteForCryptoPP");
if (pGetNewAndDelete)
{
pGetNewAndDelete(s_pNew, s_pDelete);
return;
}
PSetNewAndDelete pSetNewAndDelete = (PSetNewAndDelete)GetProcAddress(hModule, "SetNewAndDeleteFromCryptoPP");
if (pSetNewAndDelete)
{
s_pNew = &New;
s_pDelete = &free;
pSetNewAndDelete(s_pNew, s_pDelete, &set_new_handler);
return;
}
}
// try getting these directly using mangled names of new and delete operators
hModule = GetModuleHandle("msvcrtd");
if (!hModule)
hModule = GetModuleHandle("msvcrt");
if (hModule)
{
// 32-bit versions
s_pNew = (PNew)GetProcAddress(hModule, "??2@YAPAXI@Z");
s_pDelete = (PDelete)GetProcAddress(hModule, "??3@YAXPAX@Z");
if (s_pNew && s_pDelete)
return;
// 64-bit versions
s_pNew = (PNew)GetProcAddress(hModule, "??2@YAPEAX_K@Z");
s_pDelete = (PDelete)GetProcAddress(hModule, "??3@YAXPEAX@Z");
if (s_pNew && s_pDelete)
return;
}
OutputDebugString("Crypto++ was not able to obtain new and delete function pointers.\n");
throw 0;
}
void * operator new (size_t size)
{
if (!s_pNew)
SetNewAndDeleteFunctionPointers();
return s_pNew(size);
}
void operator delete (void * p)
{
s_pDelete(p);
}
void * operator new [] (size_t size)
{
return operator new (size);
}
void operator delete [] (void * p)
{
operator delete (p);
}
#endif // #ifdef CRYPTOPP_EXPORTS

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lib/cryptopp/dll.h
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#ifndef CRYPTOPP_DLL_H
#define CRYPTOPP_DLL_H
#if !defined(CRYPTOPP_IMPORTS) && !defined(CRYPTOPP_EXPORTS) && !defined(CRYPTOPP_DEFAULT_NO_DLL)
#ifdef CRYPTOPP_CONFIG_H
#error To use the DLL version of Crypto++, this file must be included before any other Crypto++ header files.
#endif
#define CRYPTOPP_IMPORTS
#endif
#include "aes.h"
#include "cbcmac.h"
#include "ccm.h"
#include "cmac.h"
#include "channels.h"
#include "des.h"
#include "dh.h"
#include "dsa.h"
#include "ec2n.h"
#include "eccrypto.h"
#include "ecp.h"
#include "files.h"
#include "fips140.h"
#include "gcm.h"
#include "hex.h"
#include "hmac.h"
#include "modes.h"
#include "mqueue.h"
#include "nbtheory.h"
#include "osrng.h"
#include "pkcspad.h"
#include "pssr.h"
#include "randpool.h"
#include "rsa.h"
#include "rw.h"
#include "sha.h"
#include "trdlocal.h"
#ifdef CRYPTOPP_IMPORTS
#ifdef _DLL
// cause CRT DLL to be initialized before Crypto++ so that we can use malloc and free during DllMain()
#ifdef NDEBUG
#pragma comment(lib, "msvcrt")
#else
#pragma comment(lib, "msvcrtd")
#endif
#endif
#pragma comment(lib, "cryptopp")
#endif // #ifdef CRYPTOPP_IMPORTS
#include <new> // for new_handler
NAMESPACE_BEGIN(CryptoPP)
#if !(defined(_MSC_VER) && (_MSC_VER < 1300))
using std::new_handler;
#endif
typedef void * (CRYPTOPP_API * PNew)(size_t);
typedef void (CRYPTOPP_API * PDelete)(void *);
typedef void (CRYPTOPP_API * PGetNewAndDelete)(PNew &, PDelete &);
typedef new_handler (CRYPTOPP_API * PSetNewHandler)(new_handler);
typedef void (CRYPTOPP_API * PSetNewAndDelete)(PNew, PDelete, PSetNewHandler);
NAMESPACE_END
#endif

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lib/cryptopp/dmac.h
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#ifndef CRYPTOPP_DMAC_H
#define CRYPTOPP_DMAC_H
#include "cbcmac.h"
NAMESPACE_BEGIN(CryptoPP)
//! _
template <class T>
class CRYPTOPP_NO_VTABLE DMAC_Base : public SameKeyLengthAs<T>, public MessageAuthenticationCode
{
public:
static std::string StaticAlgorithmName() {return std::string("DMAC(") + T::StaticAlgorithmName() + ")";}
CRYPTOPP_CONSTANT(DIGESTSIZE=T::BLOCKSIZE)
DMAC_Base() {}
void UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs &params);
void Update(const byte *input, size_t length);
void TruncatedFinal(byte *mac, size_t size);
unsigned int DigestSize() const {return DIGESTSIZE;}
private:
byte *GenerateSubKeys(const byte *key, size_t keylength);
size_t m_subkeylength;
SecByteBlock m_subkeys;
CBC_MAC<T> m_mac1;
typename T::Encryption m_f2;
unsigned int m_counter;
};
//! DMAC
/*! Based on "CBC MAC for Real-Time Data Sources" by Erez Petrank
and Charles Rackoff. T should be a class derived from BlockCipherDocumentation.
*/
template <class T>
class DMAC : public MessageAuthenticationCodeFinal<DMAC_Base<T> >
{
public:
DMAC() {}
DMAC(const byte *key, size_t length=DMAC_Base<T>::DEFAULT_KEYLENGTH)
{this->SetKey(key, length);}
};
template <class T>
void DMAC_Base<T>::UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs &params)
{
m_subkeylength = T::StaticGetValidKeyLength(T::BLOCKSIZE);
m_subkeys.resize(2*UnsignedMin((unsigned int)T::BLOCKSIZE, m_subkeylength));
m_mac1.SetKey(GenerateSubKeys(key, length), m_subkeylength, params);
m_f2.SetKey(m_subkeys+m_subkeys.size()/2, m_subkeylength, params);
m_counter = 0;
m_subkeys.resize(0);
}
template <class T>
void DMAC_Base<T>::Update(const byte *input, size_t length)
{
m_mac1.Update(input, length);
m_counter = (unsigned int)((m_counter + length) % T::BLOCKSIZE);
}
template <class T>
void DMAC_Base<T>::TruncatedFinal(byte *mac, size_t size)
{
ThrowIfInvalidTruncatedSize(size);
byte pad[T::BLOCKSIZE];
byte padByte = byte(T::BLOCKSIZE-m_counter);
memset(pad, padByte, padByte);
m_mac1.Update(pad, padByte);
m_mac1.TruncatedFinal(mac, size);
m_f2.ProcessBlock(mac);
m_counter = 0; // reset for next message
}
template <class T>
byte *DMAC_Base<T>::GenerateSubKeys(const byte *key, size_t keylength)
{
typename T::Encryption cipher(key, keylength);
memset(m_subkeys, 0, m_subkeys.size());
cipher.ProcessBlock(m_subkeys);
m_subkeys[m_subkeys.size()/2 + T::BLOCKSIZE - 1] = 1;
cipher.ProcessBlock(m_subkeys+m_subkeys.size()/2);
return m_subkeys;
}
NAMESPACE_END
#endif

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lib/cryptopp/dsa.cpp
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// dsa.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "dsa.h"
#include "nbtheory.h"
NAMESPACE_BEGIN(CryptoPP)
size_t DSAConvertSignatureFormat(byte *buffer, size_t bufferSize, DSASignatureFormat toFormat, const byte *signature, size_t signatureLen, DSASignatureFormat fromFormat)
{
Integer r, s;
StringStore store(signature, signatureLen);
ArraySink sink(buffer, bufferSize);
switch (fromFormat)
{
case DSA_P1363:
r.Decode(store, signatureLen/2);
s.Decode(store, signatureLen/2);
break;
case DSA_DER:
{
BERSequenceDecoder seq(store);
r.BERDecode(seq);
s.BERDecode(seq);
seq.MessageEnd();
break;
}
case DSA_OPENPGP:
r.OpenPGPDecode(store);
s.OpenPGPDecode(store);
break;
}
switch (toFormat)
{
case DSA_P1363:
r.Encode(sink, bufferSize/2);
s.Encode(sink, bufferSize/2);
break;
case DSA_DER:
{
DERSequenceEncoder seq(sink);
r.DEREncode(seq);
s.DEREncode(seq);
seq.MessageEnd();
break;
}
case DSA_OPENPGP:
r.OpenPGPEncode(sink);
s.OpenPGPEncode(sink);
break;
}
return (size_t)sink.TotalPutLength();
}
NAMESPACE_END
#endif

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lib/cryptopp/dsa.h
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#ifndef CRYPTOPP_DSA_H
#define CRYPTOPP_DSA_H
/** \file
*/
#include "gfpcrypt.h"
NAMESPACE_BEGIN(CryptoPP)
/*! The DSA signature format used by Crypto++ is as defined by IEEE P1363.
Java uses the DER format, and OpenPGP uses the OpenPGP format. */
enum DSASignatureFormat {DSA_P1363, DSA_DER, DSA_OPENPGP};
/** This function converts between these formats, and returns length of signature in the target format.
If toFormat == DSA_P1363, bufferSize must equal publicKey.SignatureLength() */
size_t DSAConvertSignatureFormat(byte *buffer, size_t bufferSize, DSASignatureFormat toFormat,
const byte *signature, size_t signatureLen, DSASignatureFormat fromFormat);
#ifdef CRYPTOPP_MAINTAIN_BACKWARDS_COMPATIBILITY
typedef DSA::Signer DSAPrivateKey;
typedef DSA::Verifier DSAPublicKey;
const int MIN_DSA_PRIME_LENGTH = DSA::MIN_PRIME_LENGTH;
const int MAX_DSA_PRIME_LENGTH = DSA::MAX_PRIME_LENGTH;
const int DSA_PRIME_LENGTH_MULTIPLE = DSA::PRIME_LENGTH_MULTIPLE;
inline bool GenerateDSAPrimes(const byte *seed, size_t seedLength, int &counter, Integer &p, unsigned int primeLength, Integer &q)
{return DSA::GeneratePrimes(seed, seedLength, counter, p, primeLength, q);}
#endif
NAMESPACE_END
#endif

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lib/cryptopp/eax.cpp
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// eax.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#include "eax.h"
NAMESPACE_BEGIN(CryptoPP)
void EAX_Base::SetKeyWithoutResync(const byte *userKey, size_t keylength, const NameValuePairs &params)
{
AccessMAC().SetKey(userKey, keylength, params);
m_buffer.New(2*AccessMAC().TagSize());
}
void EAX_Base::Resync(const byte *iv, size_t len)
{
MessageAuthenticationCode &mac = AccessMAC();
unsigned int blockSize = mac.TagSize();
memset(m_buffer, 0, blockSize);
mac.Update(m_buffer, blockSize);
mac.CalculateDigest(m_buffer+blockSize, iv, len);
m_buffer[blockSize-1] = 1;
mac.Update(m_buffer, blockSize);
m_ctr.SetCipherWithIV(AccessMAC().AccessCipher(), m_buffer+blockSize, blockSize);
}
size_t EAX_Base::AuthenticateBlocks(const byte *data, size_t len)
{
AccessMAC().Update(data, len);
return 0;
}
void EAX_Base::AuthenticateLastHeaderBlock()
{
assert(m_bufferedDataLength == 0);
MessageAuthenticationCode &mac = AccessMAC();
unsigned int blockSize = mac.TagSize();
mac.Final(m_buffer);
xorbuf(m_buffer+blockSize, m_buffer, blockSize);
memset(m_buffer, 0, blockSize);
m_buffer[blockSize-1] = 2;
mac.Update(m_buffer, blockSize);
}
void EAX_Base::AuthenticateLastFooterBlock(byte *tag, size_t macSize)
{
assert(m_bufferedDataLength == 0);
MessageAuthenticationCode &mac = AccessMAC();
unsigned int blockSize = mac.TagSize();
mac.TruncatedFinal(m_buffer, macSize);
xorbuf(tag, m_buffer, m_buffer+blockSize, macSize);
}
NAMESPACE_END

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#ifndef CRYPTOPP_EAX_H
#define CRYPTOPP_EAX_H
#include "authenc.h"
#include "modes.h"
#include "cmac.h"
NAMESPACE_BEGIN(CryptoPP)
//! .
class CRYPTOPP_NO_VTABLE EAX_Base : public AuthenticatedSymmetricCipherBase
{
public:
// AuthenticatedSymmetricCipher
std::string AlgorithmName() const
{return GetMAC().GetCipher().AlgorithmName() + std::string("/EAX");}
size_t MinKeyLength() const
{return GetMAC().MinKeyLength();}
size_t MaxKeyLength() const
{return GetMAC().MaxKeyLength();}
size_t DefaultKeyLength() const
{return GetMAC().DefaultKeyLength();}
size_t GetValidKeyLength(size_t n) const
{return GetMAC().GetValidKeyLength(n);}
bool IsValidKeyLength(size_t n) const
{return GetMAC().IsValidKeyLength(n);}
unsigned int OptimalDataAlignment() const
{return GetMAC().OptimalDataAlignment();}
IV_Requirement IVRequirement() const
{return UNIQUE_IV;}
unsigned int IVSize() const
{return GetMAC().TagSize();}
unsigned int MinIVLength() const
{return 0;}
unsigned int MaxIVLength() const
{return UINT_MAX;}
unsigned int DigestSize() const
{return GetMAC().TagSize();}
lword MaxHeaderLength() const
{return LWORD_MAX;}
lword MaxMessageLength() const
{return LWORD_MAX;}
protected:
// AuthenticatedSymmetricCipherBase
bool AuthenticationIsOnPlaintext() const
{return false;}
unsigned int AuthenticationBlockSize() const
{return 1;}
void SetKeyWithoutResync(const byte *userKey, size_t keylength, const NameValuePairs &params);
void Resync(const byte *iv, size_t len);
size_t AuthenticateBlocks(const byte *data, size_t len);
void AuthenticateLastHeaderBlock();
void AuthenticateLastFooterBlock(byte *mac, size_t macSize);
SymmetricCipher & AccessSymmetricCipher() {return m_ctr;}
const CMAC_Base & GetMAC() const {return const_cast<EAX_Base *>(this)->AccessMAC();}
virtual CMAC_Base & AccessMAC() =0;
CTR_Mode_ExternalCipher::Encryption m_ctr;
};
//! .
template <class T_BlockCipher, bool T_IsEncryption>
class EAX_Final : public EAX_Base
{
public:
static std::string StaticAlgorithmName()
{return T_BlockCipher::StaticAlgorithmName() + std::string("/EAX");}
bool IsForwardTransformation() const
{return T_IsEncryption;}
private:
CMAC_Base & AccessMAC() {return m_cmac;}
CMAC<T_BlockCipher> m_cmac;
};
#ifdef EAX // EAX is defined to 11 on GCC 3.4.3, OpenSolaris 8.11
#undef EAX
#endif
/// <a href="http://www.cryptolounge.org/wiki/EAX">EAX</a>
template <class T_BlockCipher>
struct EAX : public AuthenticatedSymmetricCipherDocumentation
{
typedef EAX_Final<T_BlockCipher, true> Encryption;
typedef EAX_Final<T_BlockCipher, false> Decryption;
};
NAMESPACE_END
#endif

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// ec2n.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "ec2n.h"
#include "asn.h"
#include "algebra.cpp"
#include "eprecomp.cpp"
NAMESPACE_BEGIN(CryptoPP)
EC2N::EC2N(BufferedTransformation &bt)
: m_field(BERDecodeGF2NP(bt))
{
BERSequenceDecoder seq(bt);
m_field->BERDecodeElement(seq, m_a);
m_field->BERDecodeElement(seq, m_b);
// skip optional seed
if (!seq.EndReached())
{
SecByteBlock seed;
unsigned int unused;
BERDecodeBitString(seq, seed, unused);
}
seq.MessageEnd();
}
void EC2N::DEREncode(BufferedTransformation &bt) const
{
m_field->DEREncode(bt);
DERSequenceEncoder seq(bt);
m_field->DEREncodeElement(seq, m_a);
m_field->DEREncodeElement(seq, m_b);
seq.MessageEnd();
}
bool EC2N::DecodePoint(EC2N::Point &P, const byte *encodedPoint, size_t encodedPointLen) const
{
StringStore store(encodedPoint, encodedPointLen);
return DecodePoint(P, store, encodedPointLen);
}
bool EC2N::DecodePoint(EC2N::Point &P, BufferedTransformation &bt, size_t encodedPointLen) const
{
byte type;
if (encodedPointLen < 1 || !bt.Get(type))
return false;
switch (type)
{
case 0:
P.identity = true;
return true;
case 2:
case 3:
{
if (encodedPointLen != EncodedPointSize(true))
return false;
P.identity = false;
P.x.Decode(bt, m_field->MaxElementByteLength());
if (P.x.IsZero())
{
P.y = m_field->SquareRoot(m_b);
return true;
}
FieldElement z = m_field->Square(P.x);
assert(P.x == m_field->SquareRoot(z));
P.y = m_field->Divide(m_field->Add(m_field->Multiply(z, m_field->Add(P.x, m_a)), m_b), z);
assert(P.x == m_field->Subtract(m_field->Divide(m_field->Subtract(m_field->Multiply(P.y, z), m_b), z), m_a));
z = m_field->SolveQuadraticEquation(P.y);
assert(m_field->Add(m_field->Square(z), z) == P.y);
z.SetCoefficient(0, type & 1);
P.y = m_field->Multiply(z, P.x);
return true;
}
case 4:
{
if (encodedPointLen != EncodedPointSize(false))
return false;
unsigned int len = m_field->MaxElementByteLength();
P.identity = false;
P.x.Decode(bt, len);
P.y.Decode(bt, len);
return true;
}
default:
return false;
}
}
void EC2N::EncodePoint(BufferedTransformation &bt, const Point &P, bool compressed) const
{
if (P.identity)
NullStore().TransferTo(bt, EncodedPointSize(compressed));
else if (compressed)
{
bt.Put(2 + (!P.x ? 0 : m_field->Divide(P.y, P.x).GetBit(0)));
P.x.Encode(bt, m_field->MaxElementByteLength());
}
else
{
unsigned int len = m_field->MaxElementByteLength();
bt.Put(4); // uncompressed
P.x.Encode(bt, len);
P.y.Encode(bt, len);
}
}
void EC2N::EncodePoint(byte *encodedPoint, const Point &P, bool compressed) const
{
ArraySink sink(encodedPoint, EncodedPointSize(compressed));
EncodePoint(sink, P, compressed);
assert(sink.TotalPutLength() == EncodedPointSize(compressed));
}
EC2N::Point EC2N::BERDecodePoint(BufferedTransformation &bt) const
{
SecByteBlock str;
BERDecodeOctetString(bt, str);
Point P;
if (!DecodePoint(P, str, str.size()))
BERDecodeError();
return P;
}
void EC2N::DEREncodePoint(BufferedTransformation &bt, const Point &P, bool compressed) const
{
SecByteBlock str(EncodedPointSize(compressed));
EncodePoint(str, P, compressed);
DEREncodeOctetString(bt, str);
}
bool EC2N::ValidateParameters(RandomNumberGenerator &rng, unsigned int level) const
{
bool pass = !!m_b;
pass = pass && m_a.CoefficientCount() <= m_field->MaxElementBitLength();
pass = pass && m_b.CoefficientCount() <= m_field->MaxElementBitLength();
if (level >= 1)
pass = pass && m_field->GetModulus().IsIrreducible();
return pass;
}
bool EC2N::VerifyPoint(const Point &P) const
{
const FieldElement &x = P.x, &y = P.y;
return P.identity ||
(x.CoefficientCount() <= m_field->MaxElementBitLength()
&& y.CoefficientCount() <= m_field->MaxElementBitLength()
&& !(((x+m_a)*x*x+m_b-(x+y)*y)%m_field->GetModulus()));
}
bool EC2N::Equal(const Point &P, const Point &Q) const
{
if (P.identity && Q.identity)
return true;
if (P.identity && !Q.identity)
return false;
if (!P.identity && Q.identity)
return false;
return (m_field->Equal(P.x,Q.x) && m_field->Equal(P.y,Q.y));
}
const EC2N::Point& EC2N::Identity() const
{
return Singleton<Point>().Ref();
}
const EC2N::Point& EC2N::Inverse(const Point &P) const
{
if (P.identity)
return P;
else
{
m_R.identity = false;
m_R.y = m_field->Add(P.x, P.y);
m_R.x = P.x;
return m_R;
}
}
const EC2N::Point& EC2N::Add(const Point &P, const Point &Q) const
{
if (P.identity) return Q;
if (Q.identity) return P;
if (Equal(P, Q)) return Double(P);
if (m_field->Equal(P.x, Q.x) && m_field->Equal(P.y, m_field->Add(Q.x, Q.y))) return Identity();
FieldElement t = m_field->Add(P.y, Q.y);
t = m_field->Divide(t, m_field->Add(P.x, Q.x));
FieldElement x = m_field->Square(t);
m_field->Accumulate(x, t);
m_field->Accumulate(x, Q.x);
m_field->Accumulate(x, m_a);
m_R.y = m_field->Add(P.y, m_field->Multiply(t, x));
m_field->Accumulate(x, P.x);
m_field->Accumulate(m_R.y, x);
m_R.x.swap(x);
m_R.identity = false;
return m_R;
}
const EC2N::Point& EC2N::Double(const Point &P) const
{
if (P.identity) return P;
if (!m_field->IsUnit(P.x)) return Identity();
FieldElement t = m_field->Divide(P.y, P.x);
m_field->Accumulate(t, P.x);
m_R.y = m_field->Square(P.x);
m_R.x = m_field->Square(t);
m_field->Accumulate(m_R.x, t);
m_field->Accumulate(m_R.x, m_a);
m_field->Accumulate(m_R.y, m_field->Multiply(t, m_R.x));
m_field->Accumulate(m_R.y, m_R.x);
m_R.identity = false;
return m_R;
}
// ********************************************************
/*
EcPrecomputation<EC2N>& EcPrecomputation<EC2N>::operator=(const EcPrecomputation<EC2N> &rhs)
{
m_ec = rhs.m_ec;
m_ep = rhs.m_ep;
m_ep.m_group = m_ec.get();
return *this;
}
void EcPrecomputation<EC2N>::SetCurveAndBase(const EC2N &ec, const EC2N::Point &base)
{
m_ec.reset(new EC2N(ec));
m_ep.SetGroupAndBase(*m_ec, base);
}
void EcPrecomputation<EC2N>::Precompute(unsigned int maxExpBits, unsigned int storage)
{
m_ep.Precompute(maxExpBits, storage);
}
void EcPrecomputation<EC2N>::Load(BufferedTransformation &bt)
{
BERSequenceDecoder seq(bt);
word32 version;
BERDecodeUnsigned<word32>(seq, version, INTEGER, 1, 1);
m_ep.m_exponentBase.BERDecode(seq);
m_ep.m_windowSize = m_ep.m_exponentBase.BitCount() - 1;
m_ep.m_bases.clear();
while (!seq.EndReached())
m_ep.m_bases.push_back(m_ec->BERDecodePoint(seq));
seq.MessageEnd();
}
void EcPrecomputation<EC2N>::Save(BufferedTransformation &bt) const
{
DERSequenceEncoder seq(bt);
DEREncodeUnsigned<word32>(seq, 1); // version
m_ep.m_exponentBase.DEREncode(seq);
for (unsigned i=0; i<m_ep.m_bases.size(); i++)
m_ec->DEREncodePoint(seq, m_ep.m_bases[i]);
seq.MessageEnd();
}
EC2N::Point EcPrecomputation<EC2N>::Exponentiate(const Integer &exponent) const
{
return m_ep.Exponentiate(exponent);
}
EC2N::Point EcPrecomputation<EC2N>::CascadeExponentiate(const Integer &exponent, const DL_FixedBasePrecomputation<Element> &pc2, const Integer &exponent2) const
{
return m_ep.CascadeExponentiate(exponent, static_cast<const EcPrecomputation<EC2N> &>(pc2).m_ep, exponent2);
}
*/
NAMESPACE_END
#endif

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#ifndef CRYPTOPP_EC2N_H
#define CRYPTOPP_EC2N_H
#include "gf2n.h"
#include "eprecomp.h"
#include "smartptr.h"
#include "pubkey.h"
NAMESPACE_BEGIN(CryptoPP)
//! Elliptic Curve Point
struct CRYPTOPP_DLL EC2NPoint
{
EC2NPoint() : identity(true) {}
EC2NPoint(const PolynomialMod2 &x, const PolynomialMod2 &y)
: identity(false), x(x), y(y) {}
bool operator==(const EC2NPoint &t) const
{return (identity && t.identity) || (!identity && !t.identity && x==t.x && y==t.y);}
bool operator< (const EC2NPoint &t) const
{return identity ? !t.identity : (!t.identity && (x<t.x || (x==t.x && y<t.y)));}
bool identity;
PolynomialMod2 x, y;
};
CRYPTOPP_DLL_TEMPLATE_CLASS AbstractGroup<EC2NPoint>;
//! Elliptic Curve over GF(2^n)
class CRYPTOPP_DLL EC2N : public AbstractGroup<EC2NPoint>
{
public:
typedef GF2NP Field;
typedef Field::Element FieldElement;
typedef EC2NPoint Point;
EC2N() {}
EC2N(const Field &field, const Field::Element &a, const Field::Element &b)
: m_field(field), m_a(a), m_b(b) {}
// construct from BER encoded parameters
// this constructor will decode and extract the the fields fieldID and curve of the sequence ECParameters
EC2N(BufferedTransformation &bt);
// encode the fields fieldID and curve of the sequence ECParameters
void DEREncode(BufferedTransformation &bt) const;
bool Equal(const Point &P, const Point &Q) const;
const Point& Identity() const;
const Point& Inverse(const Point &P) const;
bool InversionIsFast() const {return true;}
const Point& Add(const Point &P, const Point &Q) const;
const Point& Double(const Point &P) const;
Point Multiply(const Integer &k, const Point &P) const
{return ScalarMultiply(P, k);}
Point CascadeMultiply(const Integer &k1, const Point &P, const Integer &k2, const Point &Q) const
{return CascadeScalarMultiply(P, k1, Q, k2);}
bool ValidateParameters(RandomNumberGenerator &rng, unsigned int level=3) const;
bool VerifyPoint(const Point &P) const;
unsigned int EncodedPointSize(bool compressed = false) const
{return 1 + (compressed?1:2)*m_field->MaxElementByteLength();}
// returns false if point is compressed and not valid (doesn't check if uncompressed)
bool DecodePoint(Point &P, BufferedTransformation &bt, size_t len) const;
bool DecodePoint(Point &P, const byte *encodedPoint, size_t len) const;
void EncodePoint(byte *encodedPoint, const Point &P, bool compressed) const;
void EncodePoint(BufferedTransformation &bt, const Point &P, bool compressed) const;
Point BERDecodePoint(BufferedTransformation &bt) const;
void DEREncodePoint(BufferedTransformation &bt, const Point &P, bool compressed) const;
Integer FieldSize() const {return Integer::Power2(m_field->MaxElementBitLength());}
const Field & GetField() const {return *m_field;}
const FieldElement & GetA() const {return m_a;}
const FieldElement & GetB() const {return m_b;}
bool operator==(const EC2N &rhs) const
{return GetField() == rhs.GetField() && m_a == rhs.m_a && m_b == rhs.m_b;}
private:
clonable_ptr<Field> m_field;
FieldElement m_a, m_b;
mutable Point m_R;
};
CRYPTOPP_DLL_TEMPLATE_CLASS DL_FixedBasePrecomputationImpl<EC2N::Point>;
CRYPTOPP_DLL_TEMPLATE_CLASS DL_GroupPrecomputation<EC2N::Point>;
template <class T> class EcPrecomputation;
//! EC2N precomputation
template<> class EcPrecomputation<EC2N> : public DL_GroupPrecomputation<EC2N::Point>
{
public:
typedef EC2N EllipticCurve;
// DL_GroupPrecomputation
const AbstractGroup<Element> & GetGroup() const {return m_ec;}
Element BERDecodeElement(BufferedTransformation &bt) const {return m_ec.BERDecodePoint(bt);}
void DEREncodeElement(BufferedTransformation &bt, const Element &v) const {m_ec.DEREncodePoint(bt, v, false);}
// non-inherited
void SetCurve(const EC2N &ec) {m_ec = ec;}
const EC2N & GetCurve() const {return m_ec;}
private:
EC2N m_ec;
};
NAMESPACE_END
#endif

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// eccrypto.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "eccrypto.h"
#include "nbtheory.h"
#include "oids.h"
#include "hex.h"
#include "argnames.h"
#include "ec2n.h"
NAMESPACE_BEGIN(CryptoPP)
#if 0
static void ECDSA_TestInstantiations()
{
ECDSA<EC2N>::Signer t1;
ECDSA<EC2N>::Verifier t2(t1);
ECNR<ECP>::Signer t3;
ECNR<ECP>::Verifier t4(t3);
ECIES<ECP>::Encryptor t5;
ECIES<EC2N>::Decryptor t6;
ECDH<ECP>::Domain t7;
ECMQV<ECP>::Domain t8;
}
#endif
// VC60 workaround: complains when these functions are put into an anonymous namespace
static Integer ConvertToInteger(const PolynomialMod2 &x)
{
unsigned int l = x.ByteCount();
SecByteBlock temp(l);
x.Encode(temp, l);
return Integer(temp, l);
}
static inline Integer ConvertToInteger(const Integer &x)
{
return x;
}
static bool CheckMOVCondition(const Integer &q, const Integer &r)
{
// see "Updated standards for validating elliptic curves", http://eprint.iacr.org/2007/343
Integer t = 1;
unsigned int n = q.IsEven() ? 1 : q.BitCount(), m = r.BitCount();
for (unsigned int i=n; DiscreteLogWorkFactor(i)<m/2; i+=n)
{
if (q.IsEven())
t = (t+t)%r;
else
t = (t*q)%r;
if (t == 1)
return false;
}
return true;
}
// ******************************************************************
template <class T> struct EcRecommendedParameters;
template<> struct EcRecommendedParameters<EC2N>
{
EcRecommendedParameters(const OID &oid, unsigned int t2, unsigned int t3, unsigned int t4, const char *a, const char *b, const char *g, const char *n, unsigned int h)
: oid(oid), t0(0), t1(0), t2(t2), t3(t3), t4(t4), a(a), b(b), g(g), n(n), h(h) {}
EcRecommendedParameters(const OID &oid, unsigned int t0, unsigned int t1, unsigned int t2, unsigned int t3, unsigned int t4, const char *a, const char *b, const char *g, const char *n, unsigned int h)
: oid(oid), t0(t0), t1(t1), t2(t2), t3(t3), t4(t4), a(a), b(b), g(g), n(n), h(h) {}
EC2N *NewEC() const
{
StringSource ssA(a, true, new HexDecoder);
StringSource ssB(b, true, new HexDecoder);
if (t0 == 0)
return new EC2N(GF2NT(t2, t3, t4), EC2N::FieldElement(ssA, (size_t)ssA.MaxRetrievable()), EC2N::FieldElement(ssB, (size_t)ssB.MaxRetrievable()));
else
return new EC2N(GF2NPP(t0, t1, t2, t3, t4), EC2N::FieldElement(ssA, (size_t)ssA.MaxRetrievable()), EC2N::FieldElement(ssB, (size_t)ssB.MaxRetrievable()));
};
OID oid;
unsigned int t0, t1, t2, t3, t4;
const char *a, *b, *g, *n;
unsigned int h;
};
template<> struct EcRecommendedParameters<ECP>
{
EcRecommendedParameters(const OID &oid, const char *p, const char *a, const char *b, const char *g, const char *n, unsigned int h)
: oid(oid), p(p), a(a), b(b), g(g), n(n), h(h) {}
ECP *NewEC() const
{
StringSource ssP(p, true, new HexDecoder);
StringSource ssA(a, true, new HexDecoder);
StringSource ssB(b, true, new HexDecoder);
return new ECP(Integer(ssP, (size_t)ssP.MaxRetrievable()), ECP::FieldElement(ssA, (size_t)ssA.MaxRetrievable()), ECP::FieldElement(ssB, (size_t)ssB.MaxRetrievable()));
};
OID oid;
const char *p;
const char *a, *b, *g, *n;
unsigned int h;
};
struct OIDLessThan
{
template <typename T>
inline bool operator()(const EcRecommendedParameters<T>& a, const OID& b) {return a.oid < b;}
template <typename T>
inline bool operator()(const OID& a, const EcRecommendedParameters<T>& b) {return a < b.oid;}
template <typename T>
inline bool operator()(const EcRecommendedParameters<T>& a, const EcRecommendedParameters<T>& b) {return a.oid < b.oid;}
};
static void GetRecommendedParameters(const EcRecommendedParameters<EC2N> *&begin, const EcRecommendedParameters<EC2N> *&end)
{
// this array must be sorted by OID
static const EcRecommendedParameters<EC2N> rec[] = {
EcRecommendedParameters<EC2N>(ASN1::sect163k1(),
163, 7, 6, 3, 0,
"000000000000000000000000000000000000000001",
"000000000000000000000000000000000000000001",
"0402FE13C0537BBC11ACAA07D793DE4E6D5E5C94EEE80289070FB05D38FF58321F2E800536D538CCDAA3D9",
"04000000000000000000020108A2E0CC0D99F8A5EF",
2),
EcRecommendedParameters<EC2N>(ASN1::sect163r1(),
163, 7, 6, 3, 0,
"07B6882CAAEFA84F9554FF8428BD88E246D2782AE2",
"0713612DCDDCB40AAB946BDA29CA91F73AF958AFD9",
"040369979697AB43897789566789567F787A7876A65400435EDB42EFAFB2989D51FEFCE3C80988F41FF883",
"03FFFFFFFFFFFFFFFFFFFF48AAB689C29CA710279B",
2),
EcRecommendedParameters<EC2N>(ASN1::sect239k1(),
239, 158, 0,
"000000000000000000000000000000000000000000000000000000000000",
"000000000000000000000000000000000000000000000000000000000001",
"0429A0B6A887A983E9730988A68727A8B2D126C44CC2CC7B2A6555193035DC76310804F12E549BDB011C103089E73510ACB275FC312A5DC6B76553F0CA",
"2000000000000000000000000000005A79FEC67CB6E91F1C1DA800E478A5",
4),
EcRecommendedParameters<EC2N>(ASN1::sect113r1(),
113, 9, 0,
"003088250CA6E7C7FE649CE85820F7",
"00E8BEE4D3E2260744188BE0E9C723",
"04009D73616F35F4AB1407D73562C10F00A52830277958EE84D1315ED31886",
"0100000000000000D9CCEC8A39E56F",
2),
EcRecommendedParameters<EC2N>(ASN1::sect113r2(),
113, 9, 0,
"00689918DBEC7E5A0DD6DFC0AA55C7",
"0095E9A9EC9B297BD4BF36E059184F",
"0401A57A6A7B26CA5EF52FCDB816479700B3ADC94ED1FE674C06E695BABA1D",
"010000000000000108789B2496AF93",
2),
EcRecommendedParameters<EC2N>(ASN1::sect163r2(),
163, 7, 6, 3, 0,
"000000000000000000000000000000000000000001",
"020A601907B8C953CA1481EB10512F78744A3205FD",
"0403F0EBA16286A2D57EA0991168D4994637E8343E3600D51FBC6C71A0094FA2CDD545B11C5C0C797324F1",
"040000000000000000000292FE77E70C12A4234C33",
2),
EcRecommendedParameters<EC2N>(ASN1::sect283k1(),
283, 12, 7, 5, 0,
"000000000000000000000000000000000000000000000000000000000000000000000000",
"000000000000000000000000000000000000000000000000000000000000000000000001",
"040503213F78CA44883F1A3B8162F188E553CD265F23C1567A16876913B0C2AC245849283601CCDA380F1C9E318D90F95D07E5426FE87E45C0E8184698E45962364E34116177DD2259",
"01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE9AE2ED07577265DFF7F94451E061E163C61",
4),
EcRecommendedParameters<EC2N>(ASN1::sect283r1(),
283, 12, 7, 5, 0,
"000000000000000000000000000000000000000000000000000000000000000000000001",
"027B680AC8B8596DA5A4AF8A19A0303FCA97FD7645309FA2A581485AF6263E313B79A2F5",
"0405F939258DB7DD90E1934F8C70B0DFEC2EED25B8557EAC9C80E2E198F8CDBECD86B1205303676854FE24141CB98FE6D4B20D02B4516FF702350EDDB0826779C813F0DF45BE8112F4",
"03FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEF90399660FC938A90165B042A7CEFADB307",
2),
EcRecommendedParameters<EC2N>(ASN1::sect131r1(),
131, 8, 3, 2, 0,
"07A11B09A76B562144418FF3FF8C2570B8",
"0217C05610884B63B9C6C7291678F9D341",
"040081BAF91FDF9833C40F9C181343638399078C6E7EA38C001F73C8134B1B4EF9E150",
"0400000000000000023123953A9464B54D",
2),
EcRecommendedParameters<EC2N>(ASN1::sect131r2(),
131, 8, 3, 2, 0,
"03E5A88919D7CAFCBF415F07C2176573B2",
"04B8266A46C55657AC734CE38F018F2192",
"040356DCD8F2F95031AD652D23951BB366A80648F06D867940A5366D9E265DE9EB240F",
"0400000000000000016954A233049BA98F",
2),
EcRecommendedParameters<EC2N>(ASN1::sect193r1(),
193, 15, 0,
"0017858FEB7A98975169E171F77B4087DE098AC8A911DF7B01",
"00FDFB49BFE6C3A89FACADAA7A1E5BBC7CC1C2E5D831478814",
"0401F481BC5F0FF84A74AD6CDF6FDEF4BF6179625372D8C0C5E10025E399F2903712CCF3EA9E3A1AD17FB0B3201B6AF7CE1B05",
"01000000000000000000000000C7F34A778F443ACC920EBA49",
2),
EcRecommendedParameters<EC2N>(ASN1::sect193r2(),
193, 15, 0,
"0163F35A5137C2CE3EA6ED8667190B0BC43ECD69977702709B",
"00C9BB9E8927D4D64C377E2AB2856A5B16E3EFB7F61D4316AE",
"0400D9B67D192E0367C803F39E1A7E82CA14A651350AAE617E8F01CE94335607C304AC29E7DEFBD9CA01F596F927224CDECF6C",
"010000000000000000000000015AAB561B005413CCD4EE99D5",
2),
EcRecommendedParameters<EC2N>(ASN1::sect233k1(),
233, 74, 0,
"000000000000000000000000000000000000000000000000000000000000",
"000000000000000000000000000000000000000000000000000000000001",
"04017232BA853A7E731AF129F22FF4149563A419C26BF50A4C9D6EEFAD612601DB537DECE819B7F70F555A67C427A8CD9BF18AEB9B56E0C11056FAE6A3",
"8000000000000000000000000000069D5BB915BCD46EFB1AD5F173ABDF",
4),
EcRecommendedParameters<EC2N>(ASN1::sect233r1(),
233, 74, 0,
"000000000000000000000000000000000000000000000000000000000001",
"0066647EDE6C332C7F8C0923BB58213B333B20E9CE4281FE115F7D8F90AD",
"0400FAC9DFCBAC8313BB2139F1BB755FEF65BC391F8B36F8F8EB7371FD558B01006A08A41903350678E58528BEBF8A0BEFF867A7CA36716F7E01F81052",
"01000000000000000000000000000013E974E72F8A6922031D2603CFE0D7",
2),
EcRecommendedParameters<EC2N>(ASN1::sect409k1(),
409, 87, 0,
"00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001",
"040060F05F658F49C1AD3AB1890F7184210EFD0987E307C84C27ACCFB8F9F67CC2C460189EB5AAAA62EE222EB1B35540CFE902374601E369050B7C4E42ACBA1DACBF04299C3460782F918EA427E6325165E9EA10E3DA5F6C42E9C55215AA9CA27A5863EC48D8E0286B",
"7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE5F83B2D4EA20400EC4557D5ED3E3E7CA5B4B5C83B8E01E5FCF",
4),
EcRecommendedParameters<EC2N>(ASN1::sect409r1(),
409, 87, 0,
"00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001",
"0021A5C2C8EE9FEB5C4B9A753B7B476B7FD6422EF1F3DD674761FA99D6AC27C8A9A197B272822F6CD57A55AA4F50AE317B13545F",
"04015D4860D088DDB3496B0C6064756260441CDE4AF1771D4DB01FFE5B34E59703DC255A868A1180515603AEAB60794E54BB7996A70061B1CFAB6BE5F32BBFA78324ED106A7636B9C5A7BD198D0158AA4F5488D08F38514F1FDF4B4F40D2181B3681C364BA0273C706",
"010000000000000000000000000000000000000000000000000001E2AAD6A612F33307BE5FA47C3C9E052F838164CD37D9A21173",
2),
EcRecommendedParameters<EC2N>(ASN1::sect571k1(),
571, 10, 5, 2, 0,
"000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001",
"04026EB7A859923FBC82189631F8103FE4AC9CA2970012D5D46024804801841CA44370958493B205E647DA304DB4CEB08CBBD1BA39494776FB988B47174DCA88C7E2945283A01C89720349DC807F4FBF374F4AEADE3BCA95314DD58CEC9F307A54FFC61EFC006D8A2C9D4979C0AC44AEA74FBEBBB9F772AEDCB620B01A7BA7AF1B320430C8591984F601CD4C143EF1C7A3",
"020000000000000000000000000000000000000000000000000000000000000000000000131850E1F19A63E4B391A8DB917F4138B630D84BE5D639381E91DEB45CFE778F637C1001",
4),
EcRecommendedParameters<EC2N>(ASN1::sect571r1(),
571, 10, 5, 2, 0,
"000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001",
"02F40E7E2221F295DE297117B7F3D62F5C6A97FFCB8CEFF1CD6BA8CE4A9A18AD84FFABBD8EFA59332BE7AD6756A66E294AFD185A78FF12AA520E4DE739BACA0C7FFEFF7F2955727A",
"040303001D34B856296C16C0D40D3CD7750A93D1D2955FA80AA5F40FC8DB7B2ABDBDE53950F4C0D293CDD711A35B67FB1499AE60038614F1394ABFA3B4C850D927E1E7769C8EEC2D19037BF27342DA639B6DCCFFFEB73D69D78C6C27A6009CBBCA1980F8533921E8A684423E43BAB08A576291AF8F461BB2A8B3531D2F0485C19B16E2F1516E23DD3C1A4827AF1B8AC15B",
"03FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE661CE18FF55987308059B186823851EC7DD9CA1161DE93D5174D66E8382E9BB2FE84E47",
2),
};
begin = rec;
end = rec + sizeof(rec)/sizeof(rec[0]);
}
static void GetRecommendedParameters(const EcRecommendedParameters<ECP> *&begin, const EcRecommendedParameters<ECP> *&end)
{
// this array must be sorted by OID
static const EcRecommendedParameters<ECP> rec[] = {
EcRecommendedParameters<ECP>(ASN1::secp192r1(),
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFF",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFC",
"64210519E59C80E70FA7E9AB72243049FEB8DEECC146B9B1",
"04188DA80EB03090F67CBF20EB43A18800F4FF0AFD82FF101207192B95FFC8DA78631011ED6B24CDD573F977A11E794811",
"FFFFFFFFFFFFFFFFFFFFFFFF99DEF836146BC9B1B4D22831",
1),
EcRecommendedParameters<ECP>(ASN1::secp256r1(),
"FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFF",
"FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFC",
"5AC635D8AA3A93E7B3EBBD55769886BC651D06B0CC53B0F63BCE3C3E27D2604B",
"046B17D1F2E12C4247F8BCE6E563A440F277037D812DEB33A0F4A13945D898C2964FE342E2FE1A7F9B8EE7EB4A7C0F9E162BCE33576B315ECECBB6406837BF51F5",
"FFFFFFFF00000000FFFFFFFFFFFFFFFFBCE6FAADA7179E84F3B9CAC2FC632551",
1),
EcRecommendedParameters<ECP>(ASN1::brainpoolP160r1(),
"E95E4A5F737059DC60DFC7AD95B3D8139515620F",
"340E7BE2A280EB74E2BE61BADA745D97E8F7C300",
"1E589A8595423412134FAA2DBDEC95C8D8675E58",
"04BED5AF16EA3F6A4F62938C4631EB5AF7BDBCDBC31667CB477A1A8EC338F94741669C976316DA6321",
"E95E4A5F737059DC60DF5991D45029409E60FC09",
1),
EcRecommendedParameters<ECP>(ASN1::brainpoolP192r1(),
"C302F41D932A36CDA7A3463093D18DB78FCE476DE1A86297",
"6A91174076B1E0E19C39C031FE8685C1CAE040E5C69A28EF",
"469A28EF7C28CCA3DC721D044F4496BCCA7EF4146FBF25C9",
"04C0A0647EAAB6A48753B033C56CB0F0900A2F5C4853375FD614B690866ABD5BB88B5F4828C1490002E6773FA2FA299B8F",
"C302F41D932A36CDA7A3462F9E9E916B5BE8F1029AC4ACC1",
1),
EcRecommendedParameters<ECP>(ASN1::brainpoolP224r1(),
"D7C134AA264366862A18302575D1D787B09F075797DA89F57EC8C0FF",
"68A5E62CA9CE6C1C299803A6C1530B514E182AD8B0042A59CAD29F43",
"2580F63CCFE44138870713B1A92369E33E2135D266DBB372386C400B",
"040D9029AD2C7E5CF4340823B2A87DC68C9E4CE3174C1E6EFDEE12C07D58AA56F772C0726F24C6B89E4ECDAC24354B9E99CAA3F6D3761402CD",
"D7C134AA264366862A18302575D0FB98D116BC4B6DDEBCA3A5A7939F",
1),
EcRecommendedParameters<ECP>(ASN1::brainpoolP256r1(),
"A9FB57DBA1EEA9BC3E660A909D838D726E3BF623D52620282013481D1F6E5377",
"7D5A0975FC2C3057EEF67530417AFFE7FB8055C126DC5C6CE94A4B44F330B5D9",
"26DC5C6CE94A4B44F330B5D9BBD77CBF958416295CF7E1CE6BCCDC18FF8C07B6",
"048BD2AEB9CB7E57CB2C4B482FFC81B7AFB9DE27E1E3BD23C23A4453BD9ACE3262547EF835C3DAC4FD97F8461A14611DC9C27745132DED8E545C1D54C72F046997",
"A9FB57DBA1EEA9BC3E660A909D838D718C397AA3B561A6F7901E0E82974856A7",
1),
EcRecommendedParameters<ECP>(ASN1::brainpoolP320r1(),
"D35E472036BC4FB7E13C785ED201E065F98FCFA6F6F40DEF4F92B9EC7893EC28FCD412B1F1B32E27",
"3EE30B568FBAB0F883CCEBD46D3F3BB8A2A73513F5EB79DA66190EB085FFA9F492F375A97D860EB4",
"520883949DFDBC42D3AD198640688A6FE13F41349554B49ACC31DCCD884539816F5EB4AC8FB1F1A6",
"0443BD7E9AFB53D8B85289BCC48EE5BFE6F20137D10A087EB6E7871E2A10A599C710AF8D0D39E2061114FDD05545EC1CC8AB4093247F77275E0743FFED117182EAA9C77877AAAC6AC7D35245D1692E8EE1",
"D35E472036BC4FB7E13C785ED201E065F98FCFA5B68F12A32D482EC7EE8658E98691555B44C59311",
1),
EcRecommendedParameters<ECP>(ASN1::brainpoolP384r1(),
"8CB91E82A3386D280F5D6F7E50E641DF152F7109ED5456B412B1DA197FB71123ACD3A729901D1A71874700133107EC53",
"7BC382C63D8C150C3C72080ACE05AFA0C2BEA28E4FB22787139165EFBA91F90F8AA5814A503AD4EB04A8C7DD22CE2826",
"04A8C7DD22CE28268B39B55416F0447C2FB77DE107DCD2A62E880EA53EEB62D57CB4390295DBC9943AB78696FA504C11",
"041D1C64F068CF45FFA2A63A81B7C13F6B8847A3E77EF14FE3DB7FCAFE0CBD10E8E826E03436D646AAEF87B2E247D4AF1E8ABE1D7520F9C2A45CB1EB8E95CFD55262B70B29FEEC5864E19C054FF99129280E4646217791811142820341263C5315",
"8CB91E82A3386D280F5D6F7E50E641DF152F7109ED5456B31F166E6CAC0425A7CF3AB6AF6B7FC3103B883202E9046565",
1),
EcRecommendedParameters<ECP>(ASN1::brainpoolP512r1(),
"AADD9DB8DBE9C48B3FD4E6AE33C9FC07CB308DB3B3C9D20ED6639CCA703308717D4D9B009BC66842AECDA12AE6A380E62881FF2F2D82C68528AA6056583A48F3",
"7830A3318B603B89E2327145AC234CC594CBDD8D3DF91610A83441CAEA9863BC2DED5D5AA8253AA10A2EF1C98B9AC8B57F1117A72BF2C7B9E7C1AC4D77FC94CA",
"3DF91610A83441CAEA9863BC2DED5D5AA8253AA10A2EF1C98B9AC8B57F1117A72BF2C7B9E7C1AC4D77FC94CADC083E67984050B75EBAE5DD2809BD638016F723",
"0481AEE4BDD82ED9645A21322E9C4C6A9385ED9F70B5D916C1B43B62EEF4D0098EFF3B1F78E2D0D48D50D1687B93B97D5F7C6D5047406A5E688B352209BCB9F8227DDE385D566332ECC0EABFA9CF7822FDF209F70024A57B1AA000C55B881F8111B2DCDE494A5F485E5BCA4BD88A2763AED1CA2B2FA8F0540678CD1E0F3AD80892",
"AADD9DB8DBE9C48B3FD4E6AE33C9FC07CB308DB3B3C9D20ED6639CCA70330870553E5C414CA92619418661197FAC10471DB1D381085DDADDB58796829CA90069",
1),
EcRecommendedParameters<ECP>(ASN1::secp112r1(),
"DB7C2ABF62E35E668076BEAD208B",
"DB7C2ABF62E35E668076BEAD2088",
"659EF8BA043916EEDE8911702B22",
"0409487239995A5EE76B55F9C2F098A89CE5AF8724C0A23E0E0FF77500",
"DB7C2ABF62E35E7628DFAC6561C5",
1),
EcRecommendedParameters<ECP>(ASN1::secp112r2(),
"DB7C2ABF62E35E668076BEAD208B",
"6127C24C05F38A0AAAF65C0EF02C",
"51DEF1815DB5ED74FCC34C85D709",
"044BA30AB5E892B4E1649DD0928643ADCD46F5882E3747DEF36E956E97",
"36DF0AAFD8B8D7597CA10520D04B",
4),
EcRecommendedParameters<ECP>(ASN1::secp160r1(),
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFF",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFC",
"1C97BEFC54BD7A8B65ACF89F81D4D4ADC565FA45",
"044A96B5688EF573284664698968C38BB913CBFC8223A628553168947D59DCC912042351377AC5FB32",
"0100000000000000000001F4C8F927AED3CA752257",
1),
EcRecommendedParameters<ECP>(ASN1::secp160k1(),
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFAC73",
"0000000000000000000000000000000000000000",
"0000000000000000000000000000000000000007",
"043B4C382CE37AA192A4019E763036F4F5DD4D7EBB938CF935318FDCED6BC28286531733C3F03C4FEE",
"0100000000000000000001B8FA16DFAB9ACA16B6B3",
1),
EcRecommendedParameters<ECP>(ASN1::secp256k1(),
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2F",
"0000000000000000000000000000000000000000000000000000000000000000",
"0000000000000000000000000000000000000000000000000000000000000007",
"0479BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141",
1),
EcRecommendedParameters<ECP>(ASN1::secp128r1(),
"FFFFFFFDFFFFFFFFFFFFFFFFFFFFFFFF",
"FFFFFFFDFFFFFFFFFFFFFFFFFFFFFFFC",
"E87579C11079F43DD824993C2CEE5ED3",
"04161FF7528B899B2D0C28607CA52C5B86CF5AC8395BAFEB13C02DA292DDED7A83",
"FFFFFFFE0000000075A30D1B9038A115",
1),
EcRecommendedParameters<ECP>(ASN1::secp128r2(),
"FFFFFFFDFFFFFFFFFFFFFFFFFFFFFFFF",
"D6031998D1B3BBFEBF59CC9BBFF9AEE1",
"5EEEFCA380D02919DC2C6558BB6D8A5D",
"047B6AA5D85E572983E6FB32A7CDEBC14027B6916A894D3AEE7106FE805FC34B44",
"3FFFFFFF7FFFFFFFBE0024720613B5A3",
4),
EcRecommendedParameters<ECP>(ASN1::secp160r2(),
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFAC73",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFAC70",
"B4E134D3FB59EB8BAB57274904664D5AF50388BA",
"0452DCB034293A117E1F4FF11B30F7199D3144CE6DFEAFFEF2E331F296E071FA0DF9982CFEA7D43F2E",
"0100000000000000000000351EE786A818F3A1A16B",
1),
EcRecommendedParameters<ECP>(ASN1::secp192k1(),
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFEE37",
"000000000000000000000000000000000000000000000000",
"000000000000000000000000000000000000000000000003",
"04DB4FF10EC057E9AE26B07D0280B7F4341DA5D1B1EAE06C7D9B2F2F6D9C5628A7844163D015BE86344082AA88D95E2F9D",
"FFFFFFFFFFFFFFFFFFFFFFFE26F2FC170F69466A74DEFD8D",
1),
EcRecommendedParameters<ECP>(ASN1::secp224k1(),
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFE56D",
"00000000000000000000000000000000000000000000000000000000",
"00000000000000000000000000000000000000000000000000000005",
"04A1455B334DF099DF30FC28A169A467E9E47075A90F7E650EB6B7A45C7E089FED7FBA344282CAFBD6F7E319F7C0B0BD59E2CA4BDB556D61A5",
"010000000000000000000000000001DCE8D2EC6184CAF0A971769FB1F7",
1),
EcRecommendedParameters<ECP>(ASN1::secp224r1(),
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFE",
"B4050A850C04B3ABF54132565044B0B7D7BFD8BA270B39432355FFB4",
"04B70E0CBD6BB4BF7F321390B94A03C1D356C21122343280D6115C1D21BD376388B5F723FB4C22DFE6CD4375A05A07476444D5819985007E34",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFF16A2E0B8F03E13DD29455C5C2A3D",
1),
EcRecommendedParameters<ECP>(ASN1::secp384r1(),
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFF0000000000000000FFFFFFFF",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFF0000000000000000FFFFFFFC",
"B3312FA7E23EE7E4988E056BE3F82D19181D9C6EFE8141120314088F5013875AC656398D8A2ED19D2A85C8EDD3EC2AEF",
"04AA87CA22BE8B05378EB1C71EF320AD746E1D3B628BA79B9859F741E082542A385502F25DBF55296C3A545E3872760AB73617DE4A96262C6F5D9E98BF9292DC29F8F41DBD289A147CE9DA3113B5F0B8C00A60B1CE1D7E819D7A431D7C90EA0E5F",
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFC7634D81F4372DDF581A0DB248B0A77AECEC196ACCC52973",
1),
EcRecommendedParameters<ECP>(ASN1::secp521r1(),
"01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
"01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFC",
"0051953EB9618E1C9A1F929A21A0B68540EEA2DA725B99B315F3B8B489918EF109E156193951EC7E937B1652C0BD3BB1BF073573DF883D2C34F1EF451FD46B503F00",
"0400C6858E06B70404E9CD9E3ECB662395B4429C648139053FB521F828AF606B4D3DBAA14B5E77EFE75928FE1DC127A2FFA8DE3348B3C1856A429BF97E7E31C2E5BD66011839296A789A3BC0045C8A5FB42C7D1BD998F54449579B446817AFBD17273E662C97EE72995EF42640C550B9013FAD0761353C7086A272C24088BE94769FD16650",
"01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFA51868783BF2F966B7FCC0148F709A5D03BB5C9B8899C47AEBB6FB71E91386409",
1),
};
begin = rec;
end = rec + sizeof(rec)/sizeof(rec[0]);
}
template <class EC> OID DL_GroupParameters_EC<EC>::GetNextRecommendedParametersOID(const OID &oid)
{
const EcRecommendedParameters<EllipticCurve> *begin, *end;
GetRecommendedParameters(begin, end);
const EcRecommendedParameters<EllipticCurve> *it = std::upper_bound(begin, end, oid, OIDLessThan());
return (it == end ? OID() : it->oid);
}
template <class EC> void DL_GroupParameters_EC<EC>::Initialize(const OID &oid)
{
const EcRecommendedParameters<EllipticCurve> *begin, *end;
GetRecommendedParameters(begin, end);
const EcRecommendedParameters<EllipticCurve> *it = std::lower_bound(begin, end, oid, OIDLessThan());
if (it == end || it->oid != oid)
throw UnknownOID();
const EcRecommendedParameters<EllipticCurve> &param = *it;
m_oid = oid;
std::auto_ptr<EllipticCurve> ec(param.NewEC());
this->m_groupPrecomputation.SetCurve(*ec);
StringSource ssG(param.g, true, new HexDecoder);
Element G;
bool result = GetCurve().DecodePoint(G, ssG, (size_t)ssG.MaxRetrievable());
this->SetSubgroupGenerator(G);
assert(result);
StringSource ssN(param.n, true, new HexDecoder);
m_n.Decode(ssN, (size_t)ssN.MaxRetrievable());
m_k = param.h;
}
template <class EC>
bool DL_GroupParameters_EC<EC>::GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const
{
if (strcmp(name, Name::GroupOID()) == 0)
{
if (m_oid.m_values.empty())
return false;
this->ThrowIfTypeMismatch(name, typeid(OID), valueType);
*reinterpret_cast<OID *>(pValue) = m_oid;
return true;
}
else
return GetValueHelper<DL_GroupParameters<Element> >(this, name, valueType, pValue).Assignable()
CRYPTOPP_GET_FUNCTION_ENTRY(Curve);
}
template <class EC>
void DL_GroupParameters_EC<EC>::AssignFrom(const NameValuePairs &source)
{
OID oid;
if (source.GetValue(Name::GroupOID(), oid))
Initialize(oid);
else
{
EllipticCurve ec;
Point G;
Integer n;
source.GetRequiredParameter("DL_GroupParameters_EC<EC>", Name::Curve(), ec);
source.GetRequiredParameter("DL_GroupParameters_EC<EC>", Name::SubgroupGenerator(), G);
source.GetRequiredParameter("DL_GroupParameters_EC<EC>", Name::SubgroupOrder(), n);
Integer k = source.GetValueWithDefault(Name::Cofactor(), Integer::Zero());
Initialize(ec, G, n, k);
}
}
template <class EC>
void DL_GroupParameters_EC<EC>::GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg)
{
try
{
AssignFrom(alg);
}
catch (InvalidArgument &)
{
throw NotImplemented("DL_GroupParameters_EC<EC>: curve generation is not implemented yet");
}
}
template <class EC>
void DL_GroupParameters_EC<EC>::BERDecode(BufferedTransformation &bt)
{
byte b;
if (!bt.Peek(b))
BERDecodeError();
if (b == OBJECT_IDENTIFIER)
Initialize(OID(bt));
else
{
BERSequenceDecoder seq(bt);
word32 version;
BERDecodeUnsigned<word32>(seq, version, INTEGER, 1, 1); // check version
EllipticCurve ec(seq);
Point G = ec.BERDecodePoint(seq);
Integer n(seq);
Integer k;
bool cofactorPresent = !seq.EndReached();
if (cofactorPresent)
k.BERDecode(seq);
else
k = Integer::Zero();
seq.MessageEnd();
Initialize(ec, G, n, k);
}
}
template <class EC>
void DL_GroupParameters_EC<EC>::DEREncode(BufferedTransformation &bt) const
{
if (m_encodeAsOID && !m_oid.m_values.empty())
m_oid.DEREncode(bt);
else
{
DERSequenceEncoder seq(bt);
DEREncodeUnsigned<word32>(seq, 1); // version
GetCurve().DEREncode(seq);
GetCurve().DEREncodePoint(seq, this->GetSubgroupGenerator(), m_compress);
m_n.DEREncode(seq);
if (m_k.NotZero())
m_k.DEREncode(seq);
seq.MessageEnd();
}
}
template <class EC>
Integer DL_GroupParameters_EC<EC>::GetCofactor() const
{
if (!m_k)
{
Integer q = GetCurve().FieldSize();
Integer qSqrt = q.SquareRoot();
m_k = (q+2*qSqrt+1)/m_n;
}
return m_k;
}
template <class EC>
Integer DL_GroupParameters_EC<EC>::ConvertElementToInteger(const Element &element) const
{
return ConvertToInteger(element.x);
};
template <class EC>
bool DL_GroupParameters_EC<EC>::ValidateGroup(RandomNumberGenerator &rng, unsigned int level) const
{
bool pass = GetCurve().ValidateParameters(rng, level);
Integer q = GetCurve().FieldSize();
pass = pass && m_n!=q;
if (level >= 2)
{
Integer qSqrt = q.SquareRoot();
pass = pass && m_n>4*qSqrt;
pass = pass && VerifyPrime(rng, m_n, level-2);
pass = pass && (m_k.IsZero() || m_k == (q+2*qSqrt+1)/m_n);
pass = pass && CheckMOVCondition(q, m_n);
}
return pass;
}
template <class EC>
bool DL_GroupParameters_EC<EC>::ValidateElement(unsigned int level, const Element &g, const DL_FixedBasePrecomputation<Element> *gpc) const
{
bool pass = !IsIdentity(g) && GetCurve().VerifyPoint(g);
if (level >= 1)
{
if (gpc)
pass = pass && gpc->Exponentiate(this->GetGroupPrecomputation(), Integer::One()) == g;
}
if (level >= 2 && pass)
{
const Integer &q = GetSubgroupOrder();
Element gq = gpc ? gpc->Exponentiate(this->GetGroupPrecomputation(), q) : this->ExponentiateElement(g, q);
pass = pass && IsIdentity(gq);
}
return pass;
}
template <class EC>
void DL_GroupParameters_EC<EC>::SimultaneousExponentiate(Element *results, const Element &base, const Integer *exponents, unsigned int exponentsCount) const
{
GetCurve().SimultaneousMultiply(results, base, exponents, exponentsCount);
}
template <class EC>
CPP_TYPENAME DL_GroupParameters_EC<EC>::Element DL_GroupParameters_EC<EC>::MultiplyElements(const Element &a, const Element &b) const
{
return GetCurve().Add(a, b);
}
template <class EC>
CPP_TYPENAME DL_GroupParameters_EC<EC>::Element DL_GroupParameters_EC<EC>::CascadeExponentiate(const Element &element1, const Integer &exponent1, const Element &element2, const Integer &exponent2) const
{
return GetCurve().CascadeMultiply(exponent1, element1, exponent2, element2);
}
template <class EC>
OID DL_GroupParameters_EC<EC>::GetAlgorithmID() const
{
return ASN1::id_ecPublicKey();
}
// ******************************************************************
template <class EC>
void DL_PublicKey_EC<EC>::BERDecodePublicKey(BufferedTransformation &bt, bool parametersPresent, size_t size)
{
typename EC::Point P;
if (!this->GetGroupParameters().GetCurve().DecodePoint(P, bt, size))
BERDecodeError();
this->SetPublicElement(P);
}
template <class EC>
void DL_PublicKey_EC<EC>::DEREncodePublicKey(BufferedTransformation &bt) const
{
this->GetGroupParameters().GetCurve().EncodePoint(bt, this->GetPublicElement(), this->GetGroupParameters().GetPointCompression());
}
// ******************************************************************
template <class EC>
void DL_PrivateKey_EC<EC>::BERDecodePrivateKey(BufferedTransformation &bt, bool parametersPresent, size_t size)
{
BERSequenceDecoder seq(bt);
word32 version;
BERDecodeUnsigned<word32>(seq, version, INTEGER, 1, 1); // check version
BERGeneralDecoder dec(seq, OCTET_STRING);
if (!dec.IsDefiniteLength())
BERDecodeError();
Integer x;
x.Decode(dec, (size_t)dec.RemainingLength());
dec.MessageEnd();
if (!parametersPresent && seq.PeekByte() != (CONTEXT_SPECIFIC | CONSTRUCTED | 0))
BERDecodeError();
if (!seq.EndReached() && seq.PeekByte() == (CONTEXT_SPECIFIC | CONSTRUCTED | 0))
{
BERGeneralDecoder parameters(seq, CONTEXT_SPECIFIC | CONSTRUCTED | 0);
this->AccessGroupParameters().BERDecode(parameters);
parameters.MessageEnd();
}
if (!seq.EndReached())
{
// skip over the public element
SecByteBlock subjectPublicKey;
unsigned int unusedBits;
BERGeneralDecoder publicKey(seq, CONTEXT_SPECIFIC | CONSTRUCTED | 1);
BERDecodeBitString(publicKey, subjectPublicKey, unusedBits);
publicKey.MessageEnd();
Element Q;
if (!(unusedBits == 0 && this->GetGroupParameters().GetCurve().DecodePoint(Q, subjectPublicKey, subjectPublicKey.size())))
BERDecodeError();
}
seq.MessageEnd();
this->SetPrivateExponent(x);
}
template <class EC>
void DL_PrivateKey_EC<EC>::DEREncodePrivateKey(BufferedTransformation &bt) const
{
DERSequenceEncoder privateKey(bt);
DEREncodeUnsigned<word32>(privateKey, 1); // version
// SEC 1 ver 1.0 says privateKey (m_d) has the same length as order of the curve
// this will be changed to order of base point in a future version
this->GetPrivateExponent().DEREncodeAsOctetString(privateKey, this->GetGroupParameters().GetSubgroupOrder().ByteCount());
privateKey.MessageEnd();
}
NAMESPACE_END
#endif

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#ifndef CRYPTOPP_ECCRYPTO_H
#define CRYPTOPP_ECCRYPTO_H
/*! \file
*/
#include "pubkey.h"
#include "integer.h"
#include "asn.h"
#include "hmac.h"
#include "sha.h"
#include "gfpcrypt.h"
#include "dh.h"
#include "mqv.h"
#include "ecp.h"
#include "ec2n.h"
NAMESPACE_BEGIN(CryptoPP)
//! Elliptic Curve Parameters
/*! This class corresponds to the ASN.1 sequence of the same name
in ANSI X9.62 (also SEC 1).
*/
template <class EC>
class DL_GroupParameters_EC : public DL_GroupParametersImpl<EcPrecomputation<EC> >
{
typedef DL_GroupParameters_EC<EC> ThisClass;
public:
typedef EC EllipticCurve;
typedef typename EllipticCurve::Point Point;
typedef Point Element;
typedef IncompatibleCofactorMultiplication DefaultCofactorOption;
DL_GroupParameters_EC() : m_compress(false), m_encodeAsOID(false) {}
DL_GroupParameters_EC(const OID &oid)
: m_compress(false), m_encodeAsOID(false) {Initialize(oid);}
DL_GroupParameters_EC(const EllipticCurve &ec, const Point &G, const Integer &n, const Integer &k = Integer::Zero())
: m_compress(false), m_encodeAsOID(false) {Initialize(ec, G, n, k);}
DL_GroupParameters_EC(BufferedTransformation &bt)
: m_compress(false), m_encodeAsOID(false) {BERDecode(bt);}
void Initialize(const EllipticCurve &ec, const Point &G, const Integer &n, const Integer &k = Integer::Zero())
{
this->m_groupPrecomputation.SetCurve(ec);
this->SetSubgroupGenerator(G);
m_n = n;
m_k = k;
}
void Initialize(const OID &oid);
// NameValuePairs
bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const;
void AssignFrom(const NameValuePairs &source);
// GeneratibleCryptoMaterial interface
//! this implementation doesn't actually generate a curve, it just initializes the parameters with existing values
/*! parameters: (Curve, SubgroupGenerator, SubgroupOrder, Cofactor (optional)), or (GroupOID) */
void GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg);
// DL_GroupParameters
const DL_FixedBasePrecomputation<Element> & GetBasePrecomputation() const {return this->m_gpc;}
DL_FixedBasePrecomputation<Element> & AccessBasePrecomputation() {return this->m_gpc;}
const Integer & GetSubgroupOrder() const {return m_n;}
Integer GetCofactor() const;
bool ValidateGroup(RandomNumberGenerator &rng, unsigned int level) const;
bool ValidateElement(unsigned int level, const Element &element, const DL_FixedBasePrecomputation<Element> *precomp) const;
bool FastSubgroupCheckAvailable() const {return false;}
void EncodeElement(bool reversible, const Element &element, byte *encoded) const
{
if (reversible)
GetCurve().EncodePoint(encoded, element, m_compress);
else
element.x.Encode(encoded, GetEncodedElementSize(false));
}
unsigned int GetEncodedElementSize(bool reversible) const
{
if (reversible)
return GetCurve().EncodedPointSize(m_compress);
else
return GetCurve().GetField().MaxElementByteLength();
}
Element DecodeElement(const byte *encoded, bool checkForGroupMembership) const
{
Point result;
if (!GetCurve().DecodePoint(result, encoded, GetEncodedElementSize(true)))
throw DL_BadElement();
if (checkForGroupMembership && !ValidateElement(1, result, NULL))
throw DL_BadElement();
return result;
}
Integer ConvertElementToInteger(const Element &element) const;
Integer GetMaxExponent() const {return GetSubgroupOrder()-1;}
bool IsIdentity(const Element &element) const {return element.identity;}
void SimultaneousExponentiate(Element *results, const Element &base, const Integer *exponents, unsigned int exponentsCount) const;
static std::string CRYPTOPP_API StaticAlgorithmNamePrefix() {return "EC";}
// ASN1Key
OID GetAlgorithmID() const;
// used by MQV
Element MultiplyElements(const Element &a, const Element &b) const;
Element CascadeExponentiate(const Element &element1, const Integer &exponent1, const Element &element2, const Integer &exponent2) const;
// non-inherited
// enumerate OIDs for recommended parameters, use OID() to get first one
static OID CRYPTOPP_API GetNextRecommendedParametersOID(const OID &oid);
void BERDecode(BufferedTransformation &bt);
void DEREncode(BufferedTransformation &bt) const;
void SetPointCompression(bool compress) {m_compress = compress;}
bool GetPointCompression() const {return m_compress;}
void SetEncodeAsOID(bool encodeAsOID) {m_encodeAsOID = encodeAsOID;}
bool GetEncodeAsOID() const {return m_encodeAsOID;}
const EllipticCurve& GetCurve() const {return this->m_groupPrecomputation.GetCurve();}
bool operator==(const ThisClass &rhs) const
{return this->m_groupPrecomputation.GetCurve() == rhs.m_groupPrecomputation.GetCurve() && this->m_gpc.GetBase(this->m_groupPrecomputation) == rhs.m_gpc.GetBase(rhs.m_groupPrecomputation);}
#ifdef CRYPTOPP_MAINTAIN_BACKWARDS_COMPATIBILITY
const Point& GetBasePoint() const {return GetSubgroupGenerator();}
const Integer& GetBasePointOrder() const {return GetSubgroupOrder();}
void LoadRecommendedParameters(const OID &oid) {Initialize(oid);}
#endif
protected:
unsigned int FieldElementLength() const {return GetCurve().GetField().MaxElementByteLength();}
unsigned int ExponentLength() const {return m_n.ByteCount();}
OID m_oid; // set if parameters loaded from a recommended curve
Integer m_n; // order of base point
bool m_compress, m_encodeAsOID;
mutable Integer m_k; // cofactor
};
//! EC public key
template <class EC>
class DL_PublicKey_EC : public DL_PublicKeyImpl<DL_GroupParameters_EC<EC> >
{
public:
typedef typename EC::Point Element;
void Initialize(const DL_GroupParameters_EC<EC> &params, const Element &Q)
{this->AccessGroupParameters() = params; this->SetPublicElement(Q);}
void Initialize(const EC &ec, const Element &G, const Integer &n, const Element &Q)
{this->AccessGroupParameters().Initialize(ec, G, n); this->SetPublicElement(Q);}
// X509PublicKey
void BERDecodePublicKey(BufferedTransformation &bt, bool parametersPresent, size_t size);
void DEREncodePublicKey(BufferedTransformation &bt) const;
};
//! EC private key
template <class EC>
class DL_PrivateKey_EC : public DL_PrivateKeyImpl<DL_GroupParameters_EC<EC> >
{
public:
typedef typename EC::Point Element;
void Initialize(const DL_GroupParameters_EC<EC> &params, const Integer &x)
{this->AccessGroupParameters() = params; this->SetPrivateExponent(x);}
void Initialize(const EC &ec, const Element &G, const Integer &n, const Integer &x)
{this->AccessGroupParameters().Initialize(ec, G, n); this->SetPrivateExponent(x);}
void Initialize(RandomNumberGenerator &rng, const DL_GroupParameters_EC<EC> &params)
{this->GenerateRandom(rng, params);}
void Initialize(RandomNumberGenerator &rng, const EC &ec, const Element &G, const Integer &n)
{this->GenerateRandom(rng, DL_GroupParameters_EC<EC>(ec, G, n));}
// PKCS8PrivateKey
void BERDecodePrivateKey(BufferedTransformation &bt, bool parametersPresent, size_t size);
void DEREncodePrivateKey(BufferedTransformation &bt) const;
};
//! Elliptic Curve Diffie-Hellman, AKA <a href="http://www.weidai.com/scan-mirror/ka.html#ECDH">ECDH</a>
template <class EC, class COFACTOR_OPTION = CPP_TYPENAME DL_GroupParameters_EC<EC>::DefaultCofactorOption>
struct ECDH
{
typedef DH_Domain<DL_GroupParameters_EC<EC>, COFACTOR_OPTION> Domain;
};
/// Elliptic Curve Menezes-Qu-Vanstone, AKA <a href="http://www.weidai.com/scan-mirror/ka.html#ECMQV">ECMQV</a>
template <class EC, class COFACTOR_OPTION = CPP_TYPENAME DL_GroupParameters_EC<EC>::DefaultCofactorOption>
struct ECMQV
{
typedef MQV_Domain<DL_GroupParameters_EC<EC>, COFACTOR_OPTION> Domain;
};
//! EC keys
template <class EC>
struct DL_Keys_EC
{
typedef DL_PublicKey_EC<EC> PublicKey;
typedef DL_PrivateKey_EC<EC> PrivateKey;
};
template <class EC, class H>
struct ECDSA;
//! ECDSA keys
template <class EC>
struct DL_Keys_ECDSA
{
typedef DL_PublicKey_EC<EC> PublicKey;
typedef DL_PrivateKey_WithSignaturePairwiseConsistencyTest<DL_PrivateKey_EC<EC>, ECDSA<EC, SHA256> > PrivateKey;
};
//! ECDSA algorithm
template <class EC>
class DL_Algorithm_ECDSA : public DL_Algorithm_GDSA<typename EC::Point>
{
public:
static const char * CRYPTOPP_API StaticAlgorithmName() {return "ECDSA";}
};
//! ECNR algorithm
template <class EC>
class DL_Algorithm_ECNR : public DL_Algorithm_NR<typename EC::Point>
{
public:
static const char * CRYPTOPP_API StaticAlgorithmName() {return "ECNR";}
};
//! <a href="http://www.weidai.com/scan-mirror/sig.html#ECDSA">ECDSA</a>
template <class EC, class H>
struct ECDSA : public DL_SS<DL_Keys_ECDSA<EC>, DL_Algorithm_ECDSA<EC>, DL_SignatureMessageEncodingMethod_DSA, H>
{
};
//! ECNR
template <class EC, class H = SHA>
struct ECNR : public DL_SS<DL_Keys_EC<EC>, DL_Algorithm_ECNR<EC>, DL_SignatureMessageEncodingMethod_NR, H>
{
};
//! Elliptic Curve Integrated Encryption Scheme, AKA <a href="http://www.weidai.com/scan-mirror/ca.html#ECIES">ECIES</a>
/*! Default to (NoCofactorMultiplication and DHAES_MODE = false) for compatibilty with SEC1 and Crypto++ 4.2.
The combination of (IncompatibleCofactorMultiplication and DHAES_MODE = true) is recommended for best
efficiency and security. */
template <class EC, class COFACTOR_OPTION = NoCofactorMultiplication, bool DHAES_MODE = false>
struct ECIES
: public DL_ES<
DL_Keys_EC<EC>,
DL_KeyAgreementAlgorithm_DH<typename EC::Point, COFACTOR_OPTION>,
DL_KeyDerivationAlgorithm_P1363<typename EC::Point, DHAES_MODE, P1363_KDF2<SHA1> >,
DL_EncryptionAlgorithm_Xor<HMAC<SHA1>, DHAES_MODE>,
ECIES<EC> >
{
static std::string CRYPTOPP_API StaticAlgorithmName() {return "ECIES";} // TODO: fix this after name is standardized
};
NAMESPACE_END
#ifdef CRYPTOPP_MANUALLY_INSTANTIATE_TEMPLATES
#include "eccrypto.cpp"
#endif
NAMESPACE_BEGIN(CryptoPP)
CRYPTOPP_DLL_TEMPLATE_CLASS DL_GroupParameters_EC<ECP>;
CRYPTOPP_DLL_TEMPLATE_CLASS DL_GroupParameters_EC<EC2N>;
CRYPTOPP_DLL_TEMPLATE_CLASS DL_PublicKeyImpl<DL_GroupParameters_EC<ECP> >;
CRYPTOPP_DLL_TEMPLATE_CLASS DL_PublicKeyImpl<DL_GroupParameters_EC<EC2N> >;
CRYPTOPP_DLL_TEMPLATE_CLASS DL_PublicKey_EC<ECP>;
CRYPTOPP_DLL_TEMPLATE_CLASS DL_PublicKey_EC<EC2N>;
CRYPTOPP_DLL_TEMPLATE_CLASS DL_PrivateKeyImpl<DL_GroupParameters_EC<ECP> >;
CRYPTOPP_DLL_TEMPLATE_CLASS DL_PrivateKeyImpl<DL_GroupParameters_EC<EC2N> >;
CRYPTOPP_DLL_TEMPLATE_CLASS DL_PrivateKey_EC<ECP>;
CRYPTOPP_DLL_TEMPLATE_CLASS DL_PrivateKey_EC<EC2N>;
CRYPTOPP_DLL_TEMPLATE_CLASS DL_Algorithm_GDSA<ECP::Point>;
CRYPTOPP_DLL_TEMPLATE_CLASS DL_Algorithm_GDSA<EC2N::Point>;
CRYPTOPP_DLL_TEMPLATE_CLASS DL_PrivateKey_WithSignaturePairwiseConsistencyTest<DL_PrivateKey_EC<ECP>, ECDSA<ECP, SHA256> >;
CRYPTOPP_DLL_TEMPLATE_CLASS DL_PrivateKey_WithSignaturePairwiseConsistencyTest<DL_PrivateKey_EC<EC2N>, ECDSA<EC2N, SHA256> >;
NAMESPACE_END
#endif

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// ecp.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "ecp.h"
#include "asn.h"
#include "nbtheory.h"
#include "algebra.cpp"
NAMESPACE_BEGIN(CryptoPP)
ANONYMOUS_NAMESPACE_BEGIN
static inline ECP::Point ToMontgomery(const ModularArithmetic &mr, const ECP::Point &P)
{
return P.identity ? P : ECP::Point(mr.ConvertIn(P.x), mr.ConvertIn(P.y));
}
static inline ECP::Point FromMontgomery(const ModularArithmetic &mr, const ECP::Point &P)
{
return P.identity ? P : ECP::Point(mr.ConvertOut(P.x), mr.ConvertOut(P.y));
}
NAMESPACE_END
ECP::ECP(const ECP &ecp, bool convertToMontgomeryRepresentation)
{
if (convertToMontgomeryRepresentation && !ecp.GetField().IsMontgomeryRepresentation())
{
m_fieldPtr.reset(new MontgomeryRepresentation(ecp.GetField().GetModulus()));
m_a = GetField().ConvertIn(ecp.m_a);
m_b = GetField().ConvertIn(ecp.m_b);
}
else
operator=(ecp);
}
ECP::ECP(BufferedTransformation &bt)
: m_fieldPtr(new Field(bt))
{
BERSequenceDecoder seq(bt);
GetField().BERDecodeElement(seq, m_a);
GetField().BERDecodeElement(seq, m_b);
// skip optional seed
if (!seq.EndReached())
{
SecByteBlock seed;
unsigned int unused;
BERDecodeBitString(seq, seed, unused);
}
seq.MessageEnd();
}
void ECP::DEREncode(BufferedTransformation &bt) const
{
GetField().DEREncode(bt);
DERSequenceEncoder seq(bt);
GetField().DEREncodeElement(seq, m_a);
GetField().DEREncodeElement(seq, m_b);
seq.MessageEnd();
}
bool ECP::DecodePoint(ECP::Point &P, const byte *encodedPoint, size_t encodedPointLen) const
{
StringStore store(encodedPoint, encodedPointLen);
return DecodePoint(P, store, encodedPointLen);
}
bool ECP::DecodePoint(ECP::Point &P, BufferedTransformation &bt, size_t encodedPointLen) const
{
byte type;
if (encodedPointLen < 1 || !bt.Get(type))
return false;
switch (type)
{
case 0:
P.identity = true;
return true;
case 2:
case 3:
{
if (encodedPointLen != EncodedPointSize(true))
return false;
Integer p = FieldSize();
P.identity = false;
P.x.Decode(bt, GetField().MaxElementByteLength());
P.y = ((P.x*P.x+m_a)*P.x+m_b) % p;
if (Jacobi(P.y, p) !=1)
return false;
P.y = ModularSquareRoot(P.y, p);
if ((type & 1) != P.y.GetBit(0))
P.y = p-P.y;
return true;
}
case 4:
{
if (encodedPointLen != EncodedPointSize(false))
return false;
unsigned int len = GetField().MaxElementByteLength();
P.identity = false;
P.x.Decode(bt, len);
P.y.Decode(bt, len);
return true;
}
default:
return false;
}
}
void ECP::EncodePoint(BufferedTransformation &bt, const Point &P, bool compressed) const
{
if (P.identity)
NullStore().TransferTo(bt, EncodedPointSize(compressed));
else if (compressed)
{
bt.Put(2 + P.y.GetBit(0));
P.x.Encode(bt, GetField().MaxElementByteLength());
}
else
{
unsigned int len = GetField().MaxElementByteLength();
bt.Put(4); // uncompressed
P.x.Encode(bt, len);
P.y.Encode(bt, len);
}
}
void ECP::EncodePoint(byte *encodedPoint, const Point &P, bool compressed) const
{
ArraySink sink(encodedPoint, EncodedPointSize(compressed));
EncodePoint(sink, P, compressed);
assert(sink.TotalPutLength() == EncodedPointSize(compressed));
}
ECP::Point ECP::BERDecodePoint(BufferedTransformation &bt) const
{
SecByteBlock str;
BERDecodeOctetString(bt, str);
Point P;
if (!DecodePoint(P, str, str.size()))
BERDecodeError();
return P;
}
void ECP::DEREncodePoint(BufferedTransformation &bt, const Point &P, bool compressed) const
{
SecByteBlock str(EncodedPointSize(compressed));
EncodePoint(str, P, compressed);
DEREncodeOctetString(bt, str);
}
bool ECP::ValidateParameters(RandomNumberGenerator &rng, unsigned int level) const
{
Integer p = FieldSize();
bool pass = p.IsOdd();
pass = pass && !m_a.IsNegative() && m_a<p && !m_b.IsNegative() && m_b<p;
if (level >= 1)
pass = pass && ((4*m_a*m_a*m_a+27*m_b*m_b)%p).IsPositive();
if (level >= 2)
pass = pass && VerifyPrime(rng, p);
return pass;
}
bool ECP::VerifyPoint(const Point &P) const
{
const FieldElement &x = P.x, &y = P.y;
Integer p = FieldSize();
return P.identity ||
(!x.IsNegative() && x<p && !y.IsNegative() && y<p
&& !(((x*x+m_a)*x+m_b-y*y)%p));
}
bool ECP::Equal(const Point &P, const Point &Q) const
{
if (P.identity && Q.identity)
return true;
if (P.identity && !Q.identity)
return false;
if (!P.identity && Q.identity)
return false;
return (GetField().Equal(P.x,Q.x) && GetField().Equal(P.y,Q.y));
}
const ECP::Point& ECP::Identity() const
{
return Singleton<Point>().Ref();
}
const ECP::Point& ECP::Inverse(const Point &P) const
{
if (P.identity)
return P;
else
{
m_R.identity = false;
m_R.x = P.x;
m_R.y = GetField().Inverse(P.y);
return m_R;
}
}
const ECP::Point& ECP::Add(const Point &P, const Point &Q) const
{
if (P.identity) return Q;
if (Q.identity) return P;
if (GetField().Equal(P.x, Q.x))
return GetField().Equal(P.y, Q.y) ? Double(P) : Identity();
FieldElement t = GetField().Subtract(Q.y, P.y);
t = GetField().Divide(t, GetField().Subtract(Q.x, P.x));
FieldElement x = GetField().Subtract(GetField().Subtract(GetField().Square(t), P.x), Q.x);
m_R.y = GetField().Subtract(GetField().Multiply(t, GetField().Subtract(P.x, x)), P.y);
m_R.x.swap(x);
m_R.identity = false;
return m_R;
}
const ECP::Point& ECP::Double(const Point &P) const
{
if (P.identity || P.y==GetField().Identity()) return Identity();
FieldElement t = GetField().Square(P.x);
t = GetField().Add(GetField().Add(GetField().Double(t), t), m_a);
t = GetField().Divide(t, GetField().Double(P.y));
FieldElement x = GetField().Subtract(GetField().Subtract(GetField().Square(t), P.x), P.x);
m_R.y = GetField().Subtract(GetField().Multiply(t, GetField().Subtract(P.x, x)), P.y);
m_R.x.swap(x);
m_R.identity = false;
return m_R;
}
template <class T, class Iterator> void ParallelInvert(const AbstractRing<T> &ring, Iterator begin, Iterator end)
{
size_t n = end-begin;
if (n == 1)
*begin = ring.MultiplicativeInverse(*begin);
else if (n > 1)
{
std::vector<T> vec((n+1)/2);
unsigned int i;
Iterator it;
for (i=0, it=begin; i<n/2; i++, it+=2)
vec[i] = ring.Multiply(*it, *(it+1));
if (n%2 == 1)
vec[n/2] = *it;
ParallelInvert(ring, vec.begin(), vec.end());
for (i=0, it=begin; i<n/2; i++, it+=2)
{
if (!vec[i])
{
*it = ring.MultiplicativeInverse(*it);
*(it+1) = ring.MultiplicativeInverse(*(it+1));
}
else
{
std::swap(*it, *(it+1));
*it = ring.Multiply(*it, vec[i]);
*(it+1) = ring.Multiply(*(it+1), vec[i]);
}
}
if (n%2 == 1)
*it = vec[n/2];
}
}
struct ProjectivePoint
{
ProjectivePoint() {}
ProjectivePoint(const Integer &x, const Integer &y, const Integer &z)
: x(x), y(y), z(z) {}
Integer x,y,z;
};
class ProjectiveDoubling
{
public:
ProjectiveDoubling(const ModularArithmetic &mr, const Integer &m_a, const Integer &m_b, const ECPPoint &Q)
: mr(mr), firstDoubling(true), negated(false)
{
if (Q.identity)
{
sixteenY4 = P.x = P.y = mr.MultiplicativeIdentity();
aZ4 = P.z = mr.Identity();
}
else
{
P.x = Q.x;
P.y = Q.y;
sixteenY4 = P.z = mr.MultiplicativeIdentity();
aZ4 = m_a;
}
}
void Double()
{
twoY = mr.Double(P.y);
P.z = mr.Multiply(P.z, twoY);
fourY2 = mr.Square(twoY);
S = mr.Multiply(fourY2, P.x);
aZ4 = mr.Multiply(aZ4, sixteenY4);
M = mr.Square(P.x);
M = mr.Add(mr.Add(mr.Double(M), M), aZ4);
P.x = mr.Square(M);
mr.Reduce(P.x, S);
mr.Reduce(P.x, S);
mr.Reduce(S, P.x);
P.y = mr.Multiply(M, S);
sixteenY4 = mr.Square(fourY2);
mr.Reduce(P.y, mr.Half(sixteenY4));
}
const ModularArithmetic &mr;
ProjectivePoint P;
bool firstDoubling, negated;
Integer sixteenY4, aZ4, twoY, fourY2, S, M;
};
struct ZIterator
{
ZIterator() {}
ZIterator(std::vector<ProjectivePoint>::iterator it) : it(it) {}
Integer& operator*() {return it->z;}
int operator-(ZIterator it2) {return int(it-it2.it);}
ZIterator operator+(int i) {return ZIterator(it+i);}
ZIterator& operator+=(int i) {it+=i; return *this;}
std::vector<ProjectivePoint>::iterator it;
};
ECP::Point ECP::ScalarMultiply(const Point &P, const Integer &k) const
{
Element result;
if (k.BitCount() <= 5)
AbstractGroup<ECPPoint>::SimultaneousMultiply(&result, P, &k, 1);
else
ECP::SimultaneousMultiply(&result, P, &k, 1);
return result;
}
void ECP::SimultaneousMultiply(ECP::Point *results, const ECP::Point &P, const Integer *expBegin, unsigned int expCount) const
{
if (!GetField().IsMontgomeryRepresentation())
{
ECP ecpmr(*this, true);
const ModularArithmetic &mr = ecpmr.GetField();
ecpmr.SimultaneousMultiply(results, ToMontgomery(mr, P), expBegin, expCount);
for (unsigned int i=0; i<expCount; i++)
results[i] = FromMontgomery(mr, results[i]);
return;
}
ProjectiveDoubling rd(GetField(), m_a, m_b, P);
std::vector<ProjectivePoint> bases;
std::vector<WindowSlider> exponents;
exponents.reserve(expCount);
std::vector<std::vector<word32> > baseIndices(expCount);
std::vector<std::vector<bool> > negateBase(expCount);
std::vector<std::vector<word32> > exponentWindows(expCount);
unsigned int i;
for (i=0; i<expCount; i++)
{
assert(expBegin->NotNegative());
exponents.push_back(WindowSlider(*expBegin++, InversionIsFast(), 5));
exponents[i].FindNextWindow();
}
unsigned int expBitPosition = 0;
bool notDone = true;
while (notDone)
{
notDone = false;
bool baseAdded = false;
for (i=0; i<expCount; i++)
{
if (!exponents[i].finished && expBitPosition == exponents[i].windowBegin)
{
if (!baseAdded)
{
bases.push_back(rd.P);
baseAdded =true;
}
exponentWindows[i].push_back(exponents[i].expWindow);
baseIndices[i].push_back((word32)bases.size()-1);
negateBase[i].push_back(exponents[i].negateNext);
exponents[i].FindNextWindow();
}
notDone = notDone || !exponents[i].finished;
}
if (notDone)
{
rd.Double();
expBitPosition++;
}
}
// convert from projective to affine coordinates
ParallelInvert(GetField(), ZIterator(bases.begin()), ZIterator(bases.end()));
for (i=0; i<bases.size(); i++)
{
if (bases[i].z.NotZero())
{
bases[i].y = GetField().Multiply(bases[i].y, bases[i].z);
bases[i].z = GetField().Square(bases[i].z);
bases[i].x = GetField().Multiply(bases[i].x, bases[i].z);
bases[i].y = GetField().Multiply(bases[i].y, bases[i].z);
}
}
std::vector<BaseAndExponent<Point, Integer> > finalCascade;
for (i=0; i<expCount; i++)
{
finalCascade.resize(baseIndices[i].size());
for (unsigned int j=0; j<baseIndices[i].size(); j++)
{
ProjectivePoint &base = bases[baseIndices[i][j]];
if (base.z.IsZero())
finalCascade[j].base.identity = true;
else
{
finalCascade[j].base.identity = false;
finalCascade[j].base.x = base.x;
if (negateBase[i][j])
finalCascade[j].base.y = GetField().Inverse(base.y);
else
finalCascade[j].base.y = base.y;
}
finalCascade[j].exponent = Integer(Integer::POSITIVE, 0, exponentWindows[i][j]);
}
results[i] = GeneralCascadeMultiplication(*this, finalCascade.begin(), finalCascade.end());
}
}
ECP::Point ECP::CascadeScalarMultiply(const Point &P, const Integer &k1, const Point &Q, const Integer &k2) const
{
if (!GetField().IsMontgomeryRepresentation())
{
ECP ecpmr(*this, true);
const ModularArithmetic &mr = ecpmr.GetField();
return FromMontgomery(mr, ecpmr.CascadeScalarMultiply(ToMontgomery(mr, P), k1, ToMontgomery(mr, Q), k2));
}
else
return AbstractGroup<Point>::CascadeScalarMultiply(P, k1, Q, k2);
}
NAMESPACE_END
#endif

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#ifndef CRYPTOPP_ECP_H
#define CRYPTOPP_ECP_H
#include "modarith.h"
#include "eprecomp.h"
#include "smartptr.h"
#include "pubkey.h"
NAMESPACE_BEGIN(CryptoPP)
//! Elliptical Curve Point
struct CRYPTOPP_DLL ECPPoint
{
ECPPoint() : identity(true) {}
ECPPoint(const Integer &x, const Integer &y)
: identity(false), x(x), y(y) {}
bool operator==(const ECPPoint &t) const
{return (identity && t.identity) || (!identity && !t.identity && x==t.x && y==t.y);}
bool operator< (const ECPPoint &t) const
{return identity ? !t.identity : (!t.identity && (x<t.x || (x==t.x && y<t.y)));}
bool identity;
Integer x, y;
};
CRYPTOPP_DLL_TEMPLATE_CLASS AbstractGroup<ECPPoint>;
//! Elliptic Curve over GF(p), where p is prime
class CRYPTOPP_DLL ECP : public AbstractGroup<ECPPoint>
{
public:
typedef ModularArithmetic Field;
typedef Integer FieldElement;
typedef ECPPoint Point;
ECP() {}
ECP(const ECP &ecp, bool convertToMontgomeryRepresentation = false);
ECP(const Integer &modulus, const FieldElement &a, const FieldElement &b)
: m_fieldPtr(new Field(modulus)), m_a(a.IsNegative() ? modulus+a : a), m_b(b) {}
// construct from BER encoded parameters
// this constructor will decode and extract the the fields fieldID and curve of the sequence ECParameters
ECP(BufferedTransformation &bt);
// encode the fields fieldID and curve of the sequence ECParameters
void DEREncode(BufferedTransformation &bt) const;
bool Equal(const Point &P, const Point &Q) const;
const Point& Identity() const;
const Point& Inverse(const Point &P) const;
bool InversionIsFast() const {return true;}
const Point& Add(const Point &P, const Point &Q) const;
const Point& Double(const Point &P) const;
Point ScalarMultiply(const Point &P, const Integer &k) const;
Point CascadeScalarMultiply(const Point &P, const Integer &k1, const Point &Q, const Integer &k2) const;
void SimultaneousMultiply(Point *results, const Point &base, const Integer *exponents, unsigned int exponentsCount) const;
Point Multiply(const Integer &k, const Point &P) const
{return ScalarMultiply(P, k);}
Point CascadeMultiply(const Integer &k1, const Point &P, const Integer &k2, const Point &Q) const
{return CascadeScalarMultiply(P, k1, Q, k2);}
bool ValidateParameters(RandomNumberGenerator &rng, unsigned int level=3) const;
bool VerifyPoint(const Point &P) const;
unsigned int EncodedPointSize(bool compressed = false) const
{return 1 + (compressed?1:2)*GetField().MaxElementByteLength();}
// returns false if point is compressed and not valid (doesn't check if uncompressed)
bool DecodePoint(Point &P, BufferedTransformation &bt, size_t len) const;
bool DecodePoint(Point &P, const byte *encodedPoint, size_t len) const;
void EncodePoint(byte *encodedPoint, const Point &P, bool compressed) const;
void EncodePoint(BufferedTransformation &bt, const Point &P, bool compressed) const;
Point BERDecodePoint(BufferedTransformation &bt) const;
void DEREncodePoint(BufferedTransformation &bt, const Point &P, bool compressed) const;
Integer FieldSize() const {return GetField().GetModulus();}
const Field & GetField() const {return *m_fieldPtr;}
const FieldElement & GetA() const {return m_a;}
const FieldElement & GetB() const {return m_b;}
bool operator==(const ECP &rhs) const
{return GetField() == rhs.GetField() && m_a == rhs.m_a && m_b == rhs.m_b;}
private:
clonable_ptr<Field> m_fieldPtr;
FieldElement m_a, m_b;
mutable Point m_R;
};
CRYPTOPP_DLL_TEMPLATE_CLASS DL_FixedBasePrecomputationImpl<ECP::Point>;
CRYPTOPP_DLL_TEMPLATE_CLASS DL_GroupPrecomputation<ECP::Point>;
template <class T> class EcPrecomputation;
//! ECP precomputation
template<> class EcPrecomputation<ECP> : public DL_GroupPrecomputation<ECP::Point>
{
public:
typedef ECP EllipticCurve;
// DL_GroupPrecomputation
bool NeedConversions() const {return true;}
Element ConvertIn(const Element &P) const
{return P.identity ? P : ECP::Point(m_ec->GetField().ConvertIn(P.x), m_ec->GetField().ConvertIn(P.y));};
Element ConvertOut(const Element &P) const
{return P.identity ? P : ECP::Point(m_ec->GetField().ConvertOut(P.x), m_ec->GetField().ConvertOut(P.y));}
const AbstractGroup<Element> & GetGroup() const {return *m_ec;}
Element BERDecodeElement(BufferedTransformation &bt) const {return m_ec->BERDecodePoint(bt);}
void DEREncodeElement(BufferedTransformation &bt, const Element &v) const {m_ec->DEREncodePoint(bt, v, false);}
// non-inherited
void SetCurve(const ECP &ec)
{
m_ec.reset(new ECP(ec, true));
m_ecOriginal = ec;
}
const ECP & GetCurve() const {return *m_ecOriginal;}
private:
value_ptr<ECP> m_ec, m_ecOriginal;
};
NAMESPACE_END
#endif

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// elgamal.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#include "elgamal.h"
#include "asn.h"
#include "nbtheory.h"
NAMESPACE_BEGIN(CryptoPP)
void ElGamal_TestInstantiations()
{
ElGamalEncryptor test1(1, 1, 1);
ElGamalDecryptor test2(NullRNG(), 123);
ElGamalEncryptor test3(test2);
}
NAMESPACE_END

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#ifndef CRYPTOPP_ELGAMAL_H
#define CRYPTOPP_ELGAMAL_H
#include "modexppc.h"
#include "dsa.h"
NAMESPACE_BEGIN(CryptoPP)
class CRYPTOPP_NO_VTABLE ElGamalBase : public DL_KeyAgreementAlgorithm_DH<Integer, NoCofactorMultiplication>,
public DL_KeyDerivationAlgorithm<Integer>,
public DL_SymmetricEncryptionAlgorithm
{
public:
void Derive(const DL_GroupParameters<Integer> &groupParams, byte *derivedKey, size_t derivedLength, const Integer &agreedElement, const Integer &ephemeralPublicKey, const NameValuePairs &derivationParams) const
{
agreedElement.Encode(derivedKey, derivedLength);
}
size_t GetSymmetricKeyLength(size_t plainTextLength) const
{
return GetGroupParameters().GetModulus().ByteCount();
}
size_t GetSymmetricCiphertextLength(size_t plainTextLength) const
{
unsigned int len = GetGroupParameters().GetModulus().ByteCount();
if (plainTextLength <= GetMaxSymmetricPlaintextLength(len))
return len;
else
return 0;
}
size_t GetMaxSymmetricPlaintextLength(size_t cipherTextLength) const
{
unsigned int len = GetGroupParameters().GetModulus().ByteCount();
if (cipherTextLength == len)
return STDMIN(255U, len-3);
else
return 0;
}
void SymmetricEncrypt(RandomNumberGenerator &rng, const byte *key, const byte *plainText, size_t plainTextLength, byte *cipherText, const NameValuePairs &parameters) const
{
const Integer &p = GetGroupParameters().GetModulus();
unsigned int modulusLen = p.ByteCount();
SecByteBlock block(modulusLen-1);
rng.GenerateBlock(block, modulusLen-2-plainTextLength);
memcpy(block+modulusLen-2-plainTextLength, plainText, plainTextLength);
block[modulusLen-2] = (byte)plainTextLength;
a_times_b_mod_c(Integer(key, modulusLen), Integer(block, modulusLen-1), p).Encode(cipherText, modulusLen);
}
DecodingResult SymmetricDecrypt(const byte *key, const byte *cipherText, size_t cipherTextLength, byte *plainText, const NameValuePairs &parameters) const
{
const Integer &p = GetGroupParameters().GetModulus();
unsigned int modulusLen = p.ByteCount();
if (cipherTextLength != modulusLen)
return DecodingResult();
Integer m = a_times_b_mod_c(Integer(cipherText, modulusLen), Integer(key, modulusLen).InverseMod(p), p);
m.Encode(plainText, 1);
unsigned int plainTextLength = plainText[0];
if (plainTextLength > GetMaxSymmetricPlaintextLength(modulusLen))
return DecodingResult();
m >>= 8;
m.Encode(plainText, plainTextLength);
return DecodingResult(plainTextLength);
}
virtual const DL_GroupParameters_GFP & GetGroupParameters() const =0;
};
template <class BASE, class SCHEME_OPTIONS, class KEY>
class ElGamalObjectImpl : public DL_ObjectImplBase<BASE, SCHEME_OPTIONS, KEY>, public ElGamalBase
{
public:
size_t FixedMaxPlaintextLength() const {return this->MaxPlaintextLength(FixedCiphertextLength());}
size_t FixedCiphertextLength() const {return this->CiphertextLength(0);}
const DL_GroupParameters_GFP & GetGroupParameters() const {return this->GetKey().GetGroupParameters();}
DecodingResult FixedLengthDecrypt(RandomNumberGenerator &rng, const byte *cipherText, byte *plainText) const
{return Decrypt(rng, cipherText, FixedCiphertextLength(), plainText);}
protected:
const DL_KeyAgreementAlgorithm<Integer> & GetKeyAgreementAlgorithm() const {return *this;}
const DL_KeyDerivationAlgorithm<Integer> & GetKeyDerivationAlgorithm() const {return *this;}
const DL_SymmetricEncryptionAlgorithm & GetSymmetricEncryptionAlgorithm() const {return *this;}
};
struct ElGamalKeys
{
typedef DL_CryptoKeys_GFP::GroupParameters GroupParameters;
typedef DL_PrivateKey_GFP_OldFormat<DL_CryptoKeys_GFP::PrivateKey> PrivateKey;
typedef DL_PublicKey_GFP_OldFormat<DL_CryptoKeys_GFP::PublicKey> PublicKey;
};
//! ElGamal encryption scheme with non-standard padding
struct ElGamal
{
typedef DL_CryptoSchemeOptions<ElGamal, ElGamalKeys, int, int, int> SchemeOptions;
static const char * StaticAlgorithmName() {return "ElgamalEnc/Crypto++Padding";}
typedef SchemeOptions::GroupParameters GroupParameters;
//! implements PK_Encryptor interface
typedef PK_FinalTemplate<ElGamalObjectImpl<DL_EncryptorBase<Integer>, SchemeOptions, SchemeOptions::PublicKey> > Encryptor;
//! implements PK_Decryptor interface
typedef PK_FinalTemplate<ElGamalObjectImpl<DL_DecryptorBase<Integer>, SchemeOptions, SchemeOptions::PrivateKey> > Decryptor;
};
typedef ElGamal::Encryptor ElGamalEncryptor;
typedef ElGamal::Decryptor ElGamalDecryptor;
NAMESPACE_END
#endif

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// emsa2.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#include "emsa2.h"
#ifndef CRYPTOPP_IMPORTS
NAMESPACE_BEGIN(CryptoPP)
void EMSA2Pad::ComputeMessageRepresentative(RandomNumberGenerator &rng,
const byte *recoverableMessage, size_t recoverableMessageLength,
HashTransformation &hash, HashIdentifier hashIdentifier, bool messageEmpty,
byte *representative, size_t representativeBitLength) const
{
assert(representativeBitLength >= MinRepresentativeBitLength(hashIdentifier.second, hash.DigestSize()));
if (representativeBitLength % 8 != 7)
throw PK_SignatureScheme::InvalidKeyLength("EMSA2: EMSA2 requires a key length that is a multiple of 8");
size_t digestSize = hash.DigestSize();
size_t representativeByteLength = BitsToBytes(representativeBitLength);
representative[0] = messageEmpty ? 0x4b : 0x6b;
memset(representative+1, 0xbb, representativeByteLength-digestSize-4); // pad with 0xbb
byte *afterP2 = representative+representativeByteLength-digestSize-3;
afterP2[0] = 0xba;
hash.Final(afterP2+1);
representative[representativeByteLength-2] = *hashIdentifier.first;
representative[representativeByteLength-1] = 0xcc;
}
NAMESPACE_END
#endif

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#ifndef CRYPTOPP_EMSA2_H
#define CRYPTOPP_EMSA2_H
/** \file
This file contains various padding schemes for public key algorithms.
*/
#include "cryptlib.h"
#include "pubkey.h"
#ifdef CRYPTOPP_IS_DLL
#include "sha.h"
#endif
NAMESPACE_BEGIN(CryptoPP)
template <class H> class EMSA2HashId
{
public:
static const byte id;
};
template <class BASE>
class EMSA2HashIdLookup : public BASE
{
public:
struct HashIdentifierLookup
{
template <class H> struct HashIdentifierLookup2
{
static HashIdentifier Lookup()
{
return HashIdentifier(&EMSA2HashId<H>::id, 1);
}
};
};
};
// EMSA2HashId can be instantiated with the following classes.
class SHA1;
class RIPEMD160;
class RIPEMD128;
class SHA256;
class SHA384;
class SHA512;
class Whirlpool;
class SHA224;
// end of list
#ifdef CRYPTOPP_IS_DLL
CRYPTOPP_DLL_TEMPLATE_CLASS EMSA2HashId<SHA1>;
CRYPTOPP_DLL_TEMPLATE_CLASS EMSA2HashId<SHA224>;
CRYPTOPP_DLL_TEMPLATE_CLASS EMSA2HashId<SHA256>;
CRYPTOPP_DLL_TEMPLATE_CLASS EMSA2HashId<SHA384>;
CRYPTOPP_DLL_TEMPLATE_CLASS EMSA2HashId<SHA512>;
#endif
//! _
class CRYPTOPP_DLL EMSA2Pad : public EMSA2HashIdLookup<PK_DeterministicSignatureMessageEncodingMethod>
{
public:
static const char * CRYPTOPP_API StaticAlgorithmName() {return "EMSA2";}
size_t MinRepresentativeBitLength(size_t hashIdentifierLength, size_t digestLength) const
{return 8*digestLength + 31;}
void ComputeMessageRepresentative(RandomNumberGenerator &rng,
const byte *recoverableMessage, size_t recoverableMessageLength,
HashTransformation &hash, HashIdentifier hashIdentifier, bool messageEmpty,
byte *representative, size_t representativeBitLength) const;
};
//! EMSA2, for use with RWSS and RSA_ISO
/*! Only the following hash functions are supported by this signature standard:
\dontinclude emsa2.h
\skip EMSA2HashId can be instantiated
\until end of list
*/
struct P1363_EMSA2 : public SignatureStandard
{
typedef EMSA2Pad SignatureMessageEncodingMethod;
};
NAMESPACE_END
#endif

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// eprecomp.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "eprecomp.h"
#include "asn.h"
NAMESPACE_BEGIN(CryptoPP)
template <class T> void DL_FixedBasePrecomputationImpl<T>::SetBase(const DL_GroupPrecomputation<Element> &group, const Element &i_base)
{
m_base = group.NeedConversions() ? group.ConvertIn(i_base) : i_base;
if (m_bases.empty() || !(m_base == m_bases[0]))
{
m_bases.resize(1);
m_bases[0] = m_base;
}
if (group.NeedConversions())
m_base = i_base;
}
template <class T> void DL_FixedBasePrecomputationImpl<T>::Precompute(const DL_GroupPrecomputation<Element> &group, unsigned int maxExpBits, unsigned int storage)
{
assert(m_bases.size() > 0);
assert(storage <= maxExpBits);
if (storage > 1)
{
m_windowSize = (maxExpBits+storage-1)/storage;
m_exponentBase = Integer::Power2(m_windowSize);
}
m_bases.resize(storage);
for (unsigned i=1; i<storage; i++)
m_bases[i] = group.GetGroup().ScalarMultiply(m_bases[i-1], m_exponentBase);
}
template <class T> void DL_FixedBasePrecomputationImpl<T>::Load(const DL_GroupPrecomputation<Element> &group, BufferedTransformation &bt)
{
BERSequenceDecoder seq(bt);
word32 version;
BERDecodeUnsigned<word32>(seq, version, INTEGER, 1, 1);
m_exponentBase.BERDecode(seq);
m_windowSize = m_exponentBase.BitCount() - 1;
m_bases.clear();
while (!seq.EndReached())
m_bases.push_back(group.BERDecodeElement(seq));
if (!m_bases.empty() && group.NeedConversions())
m_base = group.ConvertOut(m_bases[0]);
seq.MessageEnd();
}
template <class T> void DL_FixedBasePrecomputationImpl<T>::Save(const DL_GroupPrecomputation<Element> &group, BufferedTransformation &bt) const
{
DERSequenceEncoder seq(bt);
DEREncodeUnsigned<word32>(seq, 1); // version
m_exponentBase.DEREncode(seq);
for (unsigned i=0; i<m_bases.size(); i++)
group.DEREncodeElement(seq, m_bases[i]);
seq.MessageEnd();
}
template <class T> void DL_FixedBasePrecomputationImpl<T>::PrepareCascade(const DL_GroupPrecomputation<Element> &i_group, std::vector<BaseAndExponent<Element> > &eb, const Integer &exponent) const
{
const AbstractGroup<T> &group = i_group.GetGroup();
Integer r, q, e = exponent;
bool fastNegate = group.InversionIsFast() && m_windowSize > 1;
unsigned int i;
for (i=0; i+1<m_bases.size(); i++)
{
Integer::DivideByPowerOf2(r, q, e, m_windowSize);
std::swap(q, e);
if (fastNegate && r.GetBit(m_windowSize-1))
{
++e;
eb.push_back(BaseAndExponent<Element>(group.Inverse(m_bases[i]), m_exponentBase - r));
}
else
eb.push_back(BaseAndExponent<Element>(m_bases[i], r));
}
eb.push_back(BaseAndExponent<Element>(m_bases[i], e));
}
template <class T> T DL_FixedBasePrecomputationImpl<T>::Exponentiate(const DL_GroupPrecomputation<Element> &group, const Integer &exponent) const
{
std::vector<BaseAndExponent<Element> > eb; // array of segments of the exponent and precalculated bases
eb.reserve(m_bases.size());
PrepareCascade(group, eb, exponent);
return group.ConvertOut(GeneralCascadeMultiplication<Element>(group.GetGroup(), eb.begin(), eb.end()));
}
template <class T> T
DL_FixedBasePrecomputationImpl<T>::CascadeExponentiate(const DL_GroupPrecomputation<Element> &group, const Integer &exponent,
const DL_FixedBasePrecomputation<T> &i_pc2, const Integer &exponent2) const
{
std::vector<BaseAndExponent<Element> > eb; // array of segments of the exponent and precalculated bases
const DL_FixedBasePrecomputationImpl<T> &pc2 = static_cast<const DL_FixedBasePrecomputationImpl<T> &>(i_pc2);
eb.reserve(m_bases.size() + pc2.m_bases.size());
PrepareCascade(group, eb, exponent);
pc2.PrepareCascade(group, eb, exponent2);
return group.ConvertOut(GeneralCascadeMultiplication<Element>(group.GetGroup(), eb.begin(), eb.end()));
}
NAMESPACE_END
#endif

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#ifndef CRYPTOPP_EPRECOMP_H
#define CRYPTOPP_EPRECOMP_H
#include "integer.h"
#include "algebra.h"
#include <vector>
NAMESPACE_BEGIN(CryptoPP)
template <class T>
class DL_GroupPrecomputation
{
public:
typedef T Element;
virtual bool NeedConversions() const {return false;}
virtual Element ConvertIn(const Element &v) const {return v;}
virtual Element ConvertOut(const Element &v) const {return v;}
virtual const AbstractGroup<Element> & GetGroup() const =0;
virtual Element BERDecodeElement(BufferedTransformation &bt) const =0;
virtual void DEREncodeElement(BufferedTransformation &bt, const Element &P) const =0;
};
template <class T>
class DL_FixedBasePrecomputation
{
public:
typedef T Element;
virtual bool IsInitialized() const =0;
virtual void SetBase(const DL_GroupPrecomputation<Element> &group, const Element &base) =0;
virtual const Element & GetBase(const DL_GroupPrecomputation<Element> &group) const =0;
virtual void Precompute(const DL_GroupPrecomputation<Element> &group, unsigned int maxExpBits, unsigned int storage) =0;
virtual void Load(const DL_GroupPrecomputation<Element> &group, BufferedTransformation &storedPrecomputation) =0;
virtual void Save(const DL_GroupPrecomputation<Element> &group, BufferedTransformation &storedPrecomputation) const =0;
virtual Element Exponentiate(const DL_GroupPrecomputation<Element> &group, const Integer &exponent) const =0;
virtual Element CascadeExponentiate(const DL_GroupPrecomputation<Element> &group, const Integer &exponent, const DL_FixedBasePrecomputation<Element> &pc2, const Integer &exponent2) const =0;
};
template <class T>
class DL_FixedBasePrecomputationImpl : public DL_FixedBasePrecomputation<T>
{
public:
typedef T Element;
DL_FixedBasePrecomputationImpl() : m_windowSize(0) {}
// DL_FixedBasePrecomputation
bool IsInitialized() const
{return !m_bases.empty();}
void SetBase(const DL_GroupPrecomputation<Element> &group, const Element &base);
const Element & GetBase(const DL_GroupPrecomputation<Element> &group) const
{return group.NeedConversions() ? m_base : m_bases[0];}
void Precompute(const DL_GroupPrecomputation<Element> &group, unsigned int maxExpBits, unsigned int storage);
void Load(const DL_GroupPrecomputation<Element> &group, BufferedTransformation &storedPrecomputation);
void Save(const DL_GroupPrecomputation<Element> &group, BufferedTransformation &storedPrecomputation) const;
Element Exponentiate(const DL_GroupPrecomputation<Element> &group, const Integer &exponent) const;
Element CascadeExponentiate(const DL_GroupPrecomputation<Element> &group, const Integer &exponent, const DL_FixedBasePrecomputation<Element> &pc2, const Integer &exponent2) const;
private:
void PrepareCascade(const DL_GroupPrecomputation<Element> &group, std::vector<BaseAndExponent<Element> > &eb, const Integer &exponent) const;
Element m_base;
unsigned int m_windowSize;
Integer m_exponentBase; // what base to represent the exponent in
std::vector<Element> m_bases; // precalculated bases
};
NAMESPACE_END
#ifdef CRYPTOPP_MANUALLY_INSTANTIATE_TEMPLATES
#include "eprecomp.cpp"
#endif
#endif

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lib/cryptopp/esign.cpp
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// esign.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#include "esign.h"
#include "asn.h"
#include "modarith.h"
#include "nbtheory.h"
#include "sha.h"
#include "algparam.h"
NAMESPACE_BEGIN(CryptoPP)
void ESIGN_TestInstantiations()
{
ESIGN<SHA>::Verifier x1(1, 1);
ESIGN<SHA>::Signer x2(NullRNG(), 1);
ESIGN<SHA>::Verifier x3(x2);
ESIGN<SHA>::Verifier x4(x2.GetKey());
ESIGN<SHA>::Verifier x5(x3);
ESIGN<SHA>::Signer x6 = x2;
x6 = x2;
x3 = ESIGN<SHA>::Verifier(x2);
x4 = x2.GetKey();
}
void ESIGNFunction::BERDecode(BufferedTransformation &bt)
{
BERSequenceDecoder seq(bt);
m_n.BERDecode(seq);
m_e.BERDecode(seq);
seq.MessageEnd();
}
void ESIGNFunction::DEREncode(BufferedTransformation &bt) const
{
DERSequenceEncoder seq(bt);
m_n.DEREncode(seq);
m_e.DEREncode(seq);
seq.MessageEnd();
}
Integer ESIGNFunction::ApplyFunction(const Integer &x) const
{
DoQuickSanityCheck();
return STDMIN(a_exp_b_mod_c(x, m_e, m_n) >> (2*GetK()+2), MaxImage());
}
bool ESIGNFunction::Validate(RandomNumberGenerator &rng, unsigned int level) const
{
bool pass = true;
pass = pass && m_n > Integer::One() && m_n.IsOdd();
pass = pass && m_e >= 8 && m_e < m_n;
return pass;
}
bool ESIGNFunction::GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const
{
return GetValueHelper(this, name, valueType, pValue).Assignable()
CRYPTOPP_GET_FUNCTION_ENTRY(Modulus)
CRYPTOPP_GET_FUNCTION_ENTRY(PublicExponent)
;
}
void ESIGNFunction::AssignFrom(const NameValuePairs &source)
{
AssignFromHelper(this, source)
CRYPTOPP_SET_FUNCTION_ENTRY(Modulus)
CRYPTOPP_SET_FUNCTION_ENTRY(PublicExponent)
;
}
// *****************************************************************************
void InvertibleESIGNFunction::GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &param)
{
int modulusSize = 1023*2;
param.GetIntValue("ModulusSize", modulusSize) || param.GetIntValue("KeySize", modulusSize);
if (modulusSize < 24)
throw InvalidArgument("InvertibleESIGNFunction: specified modulus size is too small");
if (modulusSize % 3 != 0)
throw InvalidArgument("InvertibleESIGNFunction: modulus size must be divisible by 3");
m_e = param.GetValueWithDefault("PublicExponent", Integer(32));
if (m_e < 8)
throw InvalidArgument("InvertibleESIGNFunction: public exponents less than 8 may not be secure");
// VC70 workaround: putting these after primeParam causes overlapped stack allocation
ConstByteArrayParameter seedParam;
SecByteBlock seed;
const Integer minP = Integer(204) << (modulusSize/3-8);
const Integer maxP = Integer::Power2(modulusSize/3)-1;
AlgorithmParameters primeParam = MakeParameters("Min", minP)("Max", maxP)("RandomNumberType", Integer::PRIME);
if (param.GetValue("Seed", seedParam))
{
seed.resize(seedParam.size() + 4);
memcpy(seed + 4, seedParam.begin(), seedParam.size());
PutWord(false, BIG_ENDIAN_ORDER, seed, (word32)0);
m_p.GenerateRandom(rng, CombinedNameValuePairs(primeParam, MakeParameters("Seed", ConstByteArrayParameter(seed))));
PutWord(false, BIG_ENDIAN_ORDER, seed, (word32)1);
m_q.GenerateRandom(rng, CombinedNameValuePairs(primeParam, MakeParameters("Seed", ConstByteArrayParameter(seed))));
}
else
{
m_p.GenerateRandom(rng, primeParam);
m_q.GenerateRandom(rng, primeParam);
}
m_n = m_p * m_p * m_q;
assert(m_n.BitCount() == modulusSize);
}
void InvertibleESIGNFunction::BERDecode(BufferedTransformation &bt)
{
BERSequenceDecoder privateKey(bt);
m_n.BERDecode(privateKey);
m_e.BERDecode(privateKey);
m_p.BERDecode(privateKey);
m_q.BERDecode(privateKey);
privateKey.MessageEnd();
}
void InvertibleESIGNFunction::DEREncode(BufferedTransformation &bt) const
{
DERSequenceEncoder privateKey(bt);
m_n.DEREncode(privateKey);
m_e.DEREncode(privateKey);
m_p.DEREncode(privateKey);
m_q.DEREncode(privateKey);
privateKey.MessageEnd();
}
Integer InvertibleESIGNFunction::CalculateRandomizedInverse(RandomNumberGenerator &rng, const Integer &x) const
{
DoQuickSanityCheck();
Integer pq = m_p * m_q;
Integer p2 = m_p * m_p;
Integer r, z, re, a, w0, w1;
do
{
r.Randomize(rng, Integer::Zero(), pq);
z = x << (2*GetK()+2);
re = a_exp_b_mod_c(r, m_e, m_n);
a = (z - re) % m_n;
Integer::Divide(w1, w0, a, pq);
if (w1.NotZero())
{
++w0;
w1 = pq - w1;
}
}
while ((w1 >> 2*GetK()+1).IsPositive());
ModularArithmetic modp(m_p);
Integer t = modp.Divide(w0 * r % m_p, m_e * re % m_p);
Integer s = r + t*pq;
assert(s < m_n);
/*
using namespace std;
cout << "f = " << x << endl;
cout << "r = " << r << endl;
cout << "z = " << z << endl;
cout << "a = " << a << endl;
cout << "w0 = " << w0 << endl;
cout << "w1 = " << w1 << endl;
cout << "t = " << t << endl;
cout << "s = " << s << endl;
*/
return s;
}
bool InvertibleESIGNFunction::Validate(RandomNumberGenerator &rng, unsigned int level) const
{
bool pass = ESIGNFunction::Validate(rng, level);
pass = pass && m_p > Integer::One() && m_p.IsOdd() && m_p < m_n;
pass = pass && m_q > Integer::One() && m_q.IsOdd() && m_q < m_n;
pass = pass && m_p.BitCount() == m_q.BitCount();
if (level >= 1)
pass = pass && m_p * m_p * m_q == m_n;
if (level >= 2)
pass = pass && VerifyPrime(rng, m_p, level-2) && VerifyPrime(rng, m_q, level-2);
return pass;
}
bool InvertibleESIGNFunction::GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const
{
return GetValueHelper<ESIGNFunction>(this, name, valueType, pValue).Assignable()
CRYPTOPP_GET_FUNCTION_ENTRY(Prime1)
CRYPTOPP_GET_FUNCTION_ENTRY(Prime2)
;
}
void InvertibleESIGNFunction::AssignFrom(const NameValuePairs &source)
{
AssignFromHelper<ESIGNFunction>(this, source)
CRYPTOPP_SET_FUNCTION_ENTRY(Prime1)
CRYPTOPP_SET_FUNCTION_ENTRY(Prime2)
;
}
NAMESPACE_END

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#ifndef CRYPTOPP_ESIGN_H
#define CRYPTOPP_ESIGN_H
/** \file
This file contains classes that implement the
ESIGN signature schemes as defined in IEEE P1363a.
*/
#include "pubkey.h"
#include "integer.h"
#include "asn.h"
NAMESPACE_BEGIN(CryptoPP)
//! _
class ESIGNFunction : public TrapdoorFunction, public ASN1CryptoMaterial<PublicKey>
{
typedef ESIGNFunction ThisClass;
public:
void Initialize(const Integer &n, const Integer &e)
{m_n = n; m_e = e;}
// PublicKey
void BERDecode(BufferedTransformation &bt);
void DEREncode(BufferedTransformation &bt) const;
// CryptoMaterial
bool Validate(RandomNumberGenerator &rng, unsigned int level) const;
bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const;
void AssignFrom(const NameValuePairs &source);
// TrapdoorFunction
Integer ApplyFunction(const Integer &x) const;
Integer PreimageBound() const {return m_n;}
Integer ImageBound() const {return Integer::Power2(GetK());}
// non-derived
const Integer & GetModulus() const {return m_n;}
const Integer & GetPublicExponent() const {return m_e;}
void SetModulus(const Integer &n) {m_n = n;}
void SetPublicExponent(const Integer &e) {m_e = e;}
protected:
unsigned int GetK() const {return m_n.BitCount()/3-1;}
Integer m_n, m_e;
};
//! _
class InvertibleESIGNFunction : public ESIGNFunction, public RandomizedTrapdoorFunctionInverse, public PrivateKey
{
typedef InvertibleESIGNFunction ThisClass;
public:
void Initialize(const Integer &n, const Integer &e, const Integer &p, const Integer &q)
{m_n = n; m_e = e; m_p = p; m_q = q;}
// generate a random private key
void Initialize(RandomNumberGenerator &rng, unsigned int modulusBits)
{GenerateRandomWithKeySize(rng, modulusBits);}
void BERDecode(BufferedTransformation &bt);
void DEREncode(BufferedTransformation &bt) const;
Integer CalculateRandomizedInverse(RandomNumberGenerator &rng, const Integer &x) const;
// GeneratibleCryptoMaterial
bool Validate(RandomNumberGenerator &rng, unsigned int level) const;
bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const;
void AssignFrom(const NameValuePairs &source);
/*! parameters: (ModulusSize) */
void GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg);
const Integer& GetPrime1() const {return m_p;}
const Integer& GetPrime2() const {return m_q;}
void SetPrime1(const Integer &p) {m_p = p;}
void SetPrime2(const Integer &q) {m_q = q;}
protected:
Integer m_p, m_q;
};
//! _
template <class T>
class EMSA5Pad : public PK_DeterministicSignatureMessageEncodingMethod
{
public:
static const char *StaticAlgorithmName() {return "EMSA5";}
void ComputeMessageRepresentative(RandomNumberGenerator &rng,
const byte *recoverableMessage, size_t recoverableMessageLength,
HashTransformation &hash, HashIdentifier hashIdentifier, bool messageEmpty,
byte *representative, size_t representativeBitLength) const
{
SecByteBlock digest(hash.DigestSize());
hash.Final(digest);
size_t representativeByteLength = BitsToBytes(representativeBitLength);
T mgf;
mgf.GenerateAndMask(hash, representative, representativeByteLength, digest, digest.size(), false);
if (representativeBitLength % 8 != 0)
representative[0] = (byte)Crop(representative[0], representativeBitLength % 8);
}
};
//! EMSA5, for use with ESIGN
struct P1363_EMSA5 : public SignatureStandard
{
typedef EMSA5Pad<P1363_MGF1> SignatureMessageEncodingMethod;
};
struct ESIGN_Keys
{
static std::string StaticAlgorithmName() {return "ESIGN";}
typedef ESIGNFunction PublicKey;
typedef InvertibleESIGNFunction PrivateKey;
};
//! ESIGN, as defined in IEEE P1363a
template <class H, class STANDARD = P1363_EMSA5>
struct ESIGN : public TF_SS<STANDARD, H, ESIGN_Keys>
{
};
NAMESPACE_END
#endif

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lib/cryptopp/factory.h
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#ifndef CRYPTOPP_OBJFACT_H
#define CRYPTOPP_OBJFACT_H
#include "cryptlib.h"
#include <map>
#include <vector>
NAMESPACE_BEGIN(CryptoPP)
//! _
template <class AbstractClass>
class ObjectFactory
{
public:
virtual ~ObjectFactory () {}
virtual AbstractClass * CreateObject() const =0;
};
//! _
template <class AbstractClass, class ConcreteClass>
class DefaultObjectFactory : public ObjectFactory<AbstractClass>
{
public:
AbstractClass * CreateObject() const
{
return new ConcreteClass;
}
};
//! _
template <class AbstractClass, int instance=0>
class ObjectFactoryRegistry
{
public:
class FactoryNotFound : public Exception
{
public:
FactoryNotFound(const char *name) : Exception(OTHER_ERROR, std::string("ObjectFactoryRegistry: could not find factory for algorithm ") + name) {}
};
~ObjectFactoryRegistry()
{
for (CPP_TYPENAME Map::iterator i = m_map.begin(); i != m_map.end(); ++i)
{
delete (ObjectFactory<AbstractClass> *)i->second;
i->second = NULL;
}
}
void RegisterFactory(const std::string &name, ObjectFactory<AbstractClass> *factory)
{
m_map[name] = factory;
}
const ObjectFactory<AbstractClass> * GetFactory(const char *name) const
{
CPP_TYPENAME Map::const_iterator i = m_map.find(name);
return i == m_map.end() ? NULL : (ObjectFactory<AbstractClass> *)i->second;
}
AbstractClass *CreateObject(const char *name) const
{
const ObjectFactory<AbstractClass> *factory = GetFactory(name);
if (!factory)
throw FactoryNotFound(name);
return factory->CreateObject();
}
// Return a vector containing the factory names. This is easier than returning an iterator.
// from Andrew Pitonyak
std::vector<std::string> GetFactoryNames() const
{
std::vector<std::string> names;
CPP_TYPENAME Map::const_iterator iter;
for (iter = m_map.begin(); iter != m_map.end(); ++iter)
names.push_back(iter->first);
return names;
}
CRYPTOPP_NOINLINE static ObjectFactoryRegistry<AbstractClass, instance> & Registry(CRYPTOPP_NOINLINE_DOTDOTDOT);
private:
// use void * instead of ObjectFactory<AbstractClass> * to save code size
typedef std::map<std::string, void *> Map;
Map m_map;
};
template <class AbstractClass, int instance>
ObjectFactoryRegistry<AbstractClass, instance> & ObjectFactoryRegistry<AbstractClass, instance>::Registry(CRYPTOPP_NOINLINE_DOTDOTDOT)
{
static ObjectFactoryRegistry<AbstractClass, instance> s_registry;
return s_registry;
}
template <class AbstractClass, class ConcreteClass, int instance = 0>
struct RegisterDefaultFactoryFor {
RegisterDefaultFactoryFor(const char *name=NULL)
{
// BCB2006 workaround
std::string n = name ? std::string(name) : std::string(ConcreteClass::StaticAlgorithmName());
ObjectFactoryRegistry<AbstractClass, instance>::Registry().
RegisterFactory(n, new DefaultObjectFactory<AbstractClass, ConcreteClass>);
}};
template <class SchemeClass>
void RegisterAsymmetricCipherDefaultFactories(const char *name=NULL, SchemeClass *dummy=NULL)
{
RegisterDefaultFactoryFor<PK_Encryptor, CPP_TYPENAME SchemeClass::Encryptor>((const char *)name);
RegisterDefaultFactoryFor<PK_Decryptor, CPP_TYPENAME SchemeClass::Decryptor>((const char *)name);
}
template <class SchemeClass>
void RegisterSignatureSchemeDefaultFactories(const char *name=NULL, SchemeClass *dummy=NULL)
{
RegisterDefaultFactoryFor<PK_Signer, CPP_TYPENAME SchemeClass::Signer>((const char *)name);
RegisterDefaultFactoryFor<PK_Verifier, CPP_TYPENAME SchemeClass::Verifier>((const char *)name);
}
template <class SchemeClass>
void RegisterSymmetricCipherDefaultFactories(const char *name=NULL, SchemeClass *dummy=NULL)
{
RegisterDefaultFactoryFor<SymmetricCipher, CPP_TYPENAME SchemeClass::Encryption, ENCRYPTION>((const char *)name);
RegisterDefaultFactoryFor<SymmetricCipher, CPP_TYPENAME SchemeClass::Decryption, DECRYPTION>((const char *)name);
}
template <class SchemeClass>
void RegisterAuthenticatedSymmetricCipherDefaultFactories(const char *name=NULL, SchemeClass *dummy=NULL)
{
RegisterDefaultFactoryFor<AuthenticatedSymmetricCipher, CPP_TYPENAME SchemeClass::Encryption, ENCRYPTION>((const char *)name);
RegisterDefaultFactoryFor<AuthenticatedSymmetricCipher, CPP_TYPENAME SchemeClass::Decryption, DECRYPTION>((const char *)name);
}
NAMESPACE_END
#endif

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lib/cryptopp/files.cpp
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// files.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "files.h"
#include <limits>
NAMESPACE_BEGIN(CryptoPP)
using namespace std;
#ifndef NDEBUG
void Files_TestInstantiations()
{
FileStore f0;
FileSource f1;
FileSink f2;
}
#endif
void FileStore::StoreInitialize(const NameValuePairs &parameters)
{
m_waiting = false;
m_stream = NULL;
m_file.release();
const char *fileName = NULL;
#if defined(CRYPTOPP_UNIX_AVAILABLE) || _MSC_VER >= 1400
const wchar_t *fileNameWide = NULL;
if (!parameters.GetValue(Name::InputFileNameWide(), fileNameWide))
#endif
if (!parameters.GetValue(Name::InputFileName(), fileName))
{
parameters.GetValue(Name::InputStreamPointer(), m_stream);
return;
}
ios::openmode binary = parameters.GetValueWithDefault(Name::InputBinaryMode(), true) ? ios::binary : ios::openmode(0);
m_file.reset(new std::ifstream);
#ifdef CRYPTOPP_UNIX_AVAILABLE
std::string narrowed;
if (fileNameWide)
fileName = (narrowed = StringNarrow(fileNameWide)).c_str();
#endif
#if _MSC_VER >= 1400
if (fileNameWide)
{
m_file->open(fileNameWide, ios::in | binary);
if (!*m_file)
throw OpenErr(StringNarrow(fileNameWide, false));
}
#endif
if (fileName)
{
m_file->open(fileName, ios::in | binary);
if (!*m_file)
throw OpenErr(fileName);
}
m_stream = m_file.get();
}
lword FileStore::MaxRetrievable() const
{
if (!m_stream)
return 0;
streampos current = m_stream->tellg();
streampos end = m_stream->seekg(0, ios::end).tellg();
m_stream->seekg(current);
return end-current;
}
size_t FileStore::TransferTo2(BufferedTransformation &target, lword &transferBytes, const std::string &channel, bool blocking)
{
if (!m_stream)
{
transferBytes = 0;
return 0;
}
lword size=transferBytes;
transferBytes = 0;
if (m_waiting)
goto output;
while (size && m_stream->good())
{
{
size_t spaceSize = 1024;
m_space = HelpCreatePutSpace(target, channel, 1, UnsignedMin(size_t(0)-1, size), spaceSize);
m_stream->read((char *)m_space, (unsigned int)STDMIN(size, (lword)spaceSize));
}
m_len = (size_t)m_stream->gcount();
size_t blockedBytes;
output:
blockedBytes = target.ChannelPutModifiable2(channel, m_space, m_len, 0, blocking);
m_waiting = blockedBytes > 0;
if (m_waiting)
return blockedBytes;
size -= m_len;
transferBytes += m_len;
}
if (!m_stream->good() && !m_stream->eof())
throw ReadErr();
return 0;
}
size_t FileStore::CopyRangeTo2(BufferedTransformation &target, lword &begin, lword end, const std::string &channel, bool blocking) const
{
if (!m_stream)
return 0;
if (begin == 0 && end == 1)
{
int result = m_stream->peek();
if (result == char_traits<char>::eof())
return 0;
else
{
size_t blockedBytes = target.ChannelPut(channel, byte(result), blocking);
begin += 1-blockedBytes;
return blockedBytes;
}
}
// TODO: figure out what happens on cin
streampos current = m_stream->tellg();
streampos endPosition = m_stream->seekg(0, ios::end).tellg();
streampos newPosition = current + (streamoff)begin;
if (newPosition >= endPosition)
{
m_stream->seekg(current);
return 0; // don't try to seek beyond the end of file
}
m_stream->seekg(newPosition);
try
{
assert(!m_waiting);
lword copyMax = end-begin;
size_t blockedBytes = const_cast<FileStore *>(this)->TransferTo2(target, copyMax, channel, blocking);
begin += copyMax;
if (blockedBytes)
{
const_cast<FileStore *>(this)->m_waiting = false;
return blockedBytes;
}
}
catch(...)
{
m_stream->clear();
m_stream->seekg(current);
throw;
}
m_stream->clear();
m_stream->seekg(current);
return 0;
}
lword FileStore::Skip(lword skipMax)
{
if (!m_stream)
return 0;
lword oldPos = m_stream->tellg();
std::istream::off_type offset;
if (!SafeConvert(skipMax, offset))
throw InvalidArgument("FileStore: maximum seek offset exceeded");
m_stream->seekg(offset, ios::cur);
return (lword)m_stream->tellg() - oldPos;
}
void FileSink::IsolatedInitialize(const NameValuePairs &parameters)
{
m_stream = NULL;
m_file.release();
const char *fileName = NULL;
#if defined(CRYPTOPP_UNIX_AVAILABLE) || _MSC_VER >= 1400
const wchar_t *fileNameWide = NULL;
if (!parameters.GetValue(Name::OutputFileNameWide(), fileNameWide))
#endif
if (!parameters.GetValue(Name::OutputFileName(), fileName))
{
parameters.GetValue(Name::OutputStreamPointer(), m_stream);
return;
}
ios::openmode binary = parameters.GetValueWithDefault(Name::OutputBinaryMode(), true) ? ios::binary : ios::openmode(0);
m_file.reset(new std::ofstream);
#ifdef CRYPTOPP_UNIX_AVAILABLE
std::string narrowed;
if (fileNameWide)
fileName = (narrowed = StringNarrow(fileNameWide)).c_str();
#endif
#if _MSC_VER >= 1400
if (fileNameWide)
{
m_file->open(fileNameWide, ios::out | ios::trunc | binary);
if (!*m_file)
throw OpenErr(StringNarrow(fileNameWide, false));
}
#endif
if (fileName)
{
m_file->open(fileName, ios::out | ios::trunc | binary);
if (!*m_file)
throw OpenErr(fileName);
}
m_stream = m_file.get();
}
bool FileSink::IsolatedFlush(bool hardFlush, bool blocking)
{
if (!m_stream)
throw Err("FileSink: output stream not opened");
m_stream->flush();
if (!m_stream->good())
throw WriteErr();
return false;
}
size_t FileSink::Put2(const byte *inString, size_t length, int messageEnd, bool blocking)
{
if (!m_stream)
throw Err("FileSink: output stream not opened");
while (length > 0)
{
std::streamsize size;
if (!SafeConvert(length, size))
size = numeric_limits<std::streamsize>::max();
m_stream->write((const char *)inString, size);
inString += size;
length -= (size_t)size;
}
if (messageEnd)
m_stream->flush();
if (!m_stream->good())
throw WriteErr();
return 0;
}
NAMESPACE_END
#endif

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lib/cryptopp/files.h
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#ifndef CRYPTOPP_FILES_H
#define CRYPTOPP_FILES_H
#include "cryptlib.h"
#include "filters.h"
#include "argnames.h"
#include <iostream>
#include <fstream>
NAMESPACE_BEGIN(CryptoPP)
//! file-based implementation of Store interface
class CRYPTOPP_DLL FileStore : public Store, private FilterPutSpaceHelper, public NotCopyable
{
public:
class Err : public Exception
{
public:
Err(const std::string &s) : Exception(IO_ERROR, s) {}
};
class OpenErr : public Err {public: OpenErr(const std::string &filename) : Err("FileStore: error opening file for reading: " + filename) {}};
class ReadErr : public Err {public: ReadErr() : Err("FileStore: error reading file") {}};
FileStore() : m_stream(NULL) {}
FileStore(std::istream &in)
{StoreInitialize(MakeParameters(Name::InputStreamPointer(), &in));}
FileStore(const char *filename)
{StoreInitialize(MakeParameters(Name::InputFileName(), filename));}
#if defined(CRYPTOPP_UNIX_AVAILABLE) || _MSC_VER >= 1400
//! specify file with Unicode name. On non-Windows OS, this function assumes that setlocale() has been called.
FileStore(const wchar_t *filename)
{StoreInitialize(MakeParameters(Name::InputFileNameWide(), filename));}
#endif
std::istream* GetStream() {return m_stream;}
lword MaxRetrievable() const;
size_t TransferTo2(BufferedTransformation &target, lword &transferBytes, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true);
size_t CopyRangeTo2(BufferedTransformation &target, lword &begin, lword end=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true) const;
lword Skip(lword skipMax=ULONG_MAX);
private:
void StoreInitialize(const NameValuePairs &parameters);
member_ptr<std::ifstream> m_file;
std::istream *m_stream;
byte *m_space;
size_t m_len;
bool m_waiting;
};
//! file-based implementation of Source interface
class CRYPTOPP_DLL FileSource : public SourceTemplate<FileStore>
{
public:
typedef FileStore::Err Err;
typedef FileStore::OpenErr OpenErr;
typedef FileStore::ReadErr ReadErr;
FileSource(BufferedTransformation *attachment = NULL)
: SourceTemplate<FileStore>(attachment) {}
FileSource(std::istream &in, bool pumpAll, BufferedTransformation *attachment = NULL)
: SourceTemplate<FileStore>(attachment) {SourceInitialize(pumpAll, MakeParameters(Name::InputStreamPointer(), &in));}
FileSource(const char *filename, bool pumpAll, BufferedTransformation *attachment = NULL, bool binary=true)
: SourceTemplate<FileStore>(attachment) {SourceInitialize(pumpAll, MakeParameters(Name::InputFileName(), filename)(Name::InputBinaryMode(), binary));}
#if defined(CRYPTOPP_UNIX_AVAILABLE) || _MSC_VER >= 1400
//! specify file with Unicode name. On non-Windows OS, this function assumes that setlocale() has been called.
FileSource(const wchar_t *filename, bool pumpAll, BufferedTransformation *attachment = NULL, bool binary=true)
: SourceTemplate<FileStore>(attachment) {SourceInitialize(pumpAll, MakeParameters(Name::InputFileNameWide(), filename)(Name::InputBinaryMode(), binary));}
#endif
std::istream* GetStream() {return m_store.GetStream();}
};
//! file-based implementation of Sink interface
class CRYPTOPP_DLL FileSink : public Sink, public NotCopyable
{
public:
class Err : public Exception
{
public:
Err(const std::string &s) : Exception(IO_ERROR, s) {}
};
class OpenErr : public Err {public: OpenErr(const std::string &filename) : Err("FileSink: error opening file for writing: " + filename) {}};
class WriteErr : public Err {public: WriteErr() : Err("FileSink: error writing file") {}};
FileSink() : m_stream(NULL) {}
FileSink(std::ostream &out)
{IsolatedInitialize(MakeParameters(Name::OutputStreamPointer(), &out));}
FileSink(const char *filename, bool binary=true)
{IsolatedInitialize(MakeParameters(Name::OutputFileName(), filename)(Name::OutputBinaryMode(), binary));}
#if defined(CRYPTOPP_UNIX_AVAILABLE) || _MSC_VER >= 1400
//! specify file with Unicode name. On non-Windows OS, this function assumes that setlocale() has been called.
FileSink(const wchar_t *filename, bool binary=true)
{IsolatedInitialize(MakeParameters(Name::OutputFileNameWide(), filename)(Name::OutputBinaryMode(), binary));}
#endif
std::ostream* GetStream() {return m_stream;}
void IsolatedInitialize(const NameValuePairs &parameters);
size_t Put2(const byte *inString, size_t length, int messageEnd, bool blocking);
bool IsolatedFlush(bool hardFlush, bool blocking);
private:
member_ptr<std::ofstream> m_file;
std::ostream *m_stream;
};
NAMESPACE_END
#endif

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#ifndef CRYPTOPP_FILTERS_H
#define CRYPTOPP_FILTERS_H
//! \file
#include "simple.h"
#include "secblock.h"
#include "misc.h"
#include "smartptr.h"
#include "queue.h"
#include "algparam.h"
#include <deque>
NAMESPACE_BEGIN(CryptoPP)
/// provides an implementation of BufferedTransformation's attachment interface
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Filter : public BufferedTransformation, public NotCopyable
{
public:
Filter(BufferedTransformation *attachment = NULL);
bool Attachable() {return true;}
BufferedTransformation *AttachedTransformation();
const BufferedTransformation *AttachedTransformation() const;
void Detach(BufferedTransformation *newAttachment = NULL);
size_t TransferTo2(BufferedTransformation &target, lword &transferBytes, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true);
size_t CopyRangeTo2(BufferedTransformation &target, lword &begin, lword end=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true) const;
void Initialize(const NameValuePairs &parameters=g_nullNameValuePairs, int propagation=-1);
bool Flush(bool hardFlush, int propagation=-1, bool blocking=true);
bool MessageSeriesEnd(int propagation=-1, bool blocking=true);
protected:
virtual BufferedTransformation * NewDefaultAttachment() const;
void Insert(Filter *nextFilter); // insert filter after this one
virtual bool ShouldPropagateMessageEnd() const {return true;}
virtual bool ShouldPropagateMessageSeriesEnd() const {return true;}
void PropagateInitialize(const NameValuePairs &parameters, int propagation);
size_t Output(int outputSite, const byte *inString, size_t length, int messageEnd, bool blocking, const std::string &channel=DEFAULT_CHANNEL);
size_t OutputModifiable(int outputSite, byte *inString, size_t length, int messageEnd, bool blocking, const std::string &channel=DEFAULT_CHANNEL);
bool OutputMessageEnd(int outputSite, int propagation, bool blocking, const std::string &channel=DEFAULT_CHANNEL);
bool OutputFlush(int outputSite, bool hardFlush, int propagation, bool blocking, const std::string &channel=DEFAULT_CHANNEL);
bool OutputMessageSeriesEnd(int outputSite, int propagation, bool blocking, const std::string &channel=DEFAULT_CHANNEL);
private:
member_ptr<BufferedTransformation> m_attachment;
protected:
size_t m_inputPosition;
int m_continueAt;
};
struct CRYPTOPP_DLL FilterPutSpaceHelper
{
// desiredSize is how much to ask target, bufferSize is how much to allocate in m_tempSpace
byte *HelpCreatePutSpace(BufferedTransformation &target, const std::string &channel, size_t minSize, size_t desiredSize, size_t &bufferSize)
{
assert(desiredSize >= minSize && bufferSize >= minSize);
if (m_tempSpace.size() < minSize)
{
byte *result = target.ChannelCreatePutSpace(channel, desiredSize);
if (desiredSize >= minSize)
{
bufferSize = desiredSize;
return result;
}
m_tempSpace.New(bufferSize);
}
bufferSize = m_tempSpace.size();
return m_tempSpace.begin();
}
byte *HelpCreatePutSpace(BufferedTransformation &target, const std::string &channel, size_t minSize)
{return HelpCreatePutSpace(target, channel, minSize, minSize, minSize);}
byte *HelpCreatePutSpace(BufferedTransformation &target, const std::string &channel, size_t minSize, size_t bufferSize)
{return HelpCreatePutSpace(target, channel, minSize, minSize, bufferSize);}
SecByteBlock m_tempSpace;
};
//! measure how many byte and messages pass through, also serves as valve
class CRYPTOPP_DLL MeterFilter : public Bufferless<Filter>
{
public:
MeterFilter(BufferedTransformation *attachment=NULL, bool transparent=true)
: m_transparent(transparent) {Detach(attachment); ResetMeter();}
void SetTransparent(bool transparent) {m_transparent = transparent;}
void AddRangeToSkip(unsigned int message, lword position, lword size, bool sortNow = true);
void ResetMeter();
void IsolatedInitialize(const NameValuePairs &parameters) {ResetMeter();}
lword GetCurrentMessageBytes() const {return m_currentMessageBytes;}
lword GetTotalBytes() {return m_totalBytes;}
unsigned int GetCurrentSeriesMessages() {return m_currentSeriesMessages;}
unsigned int GetTotalMessages() {return m_totalMessages;}
unsigned int GetTotalMessageSeries() {return m_totalMessageSeries;}
byte * CreatePutSpace(size_t &size)
{return AttachedTransformation()->CreatePutSpace(size);}
size_t Put2(const byte *begin, size_t length, int messageEnd, bool blocking);
size_t PutModifiable2(byte *inString, size_t length, int messageEnd, bool blocking);
bool IsolatedMessageSeriesEnd(bool blocking);
private:
size_t PutMaybeModifiable(byte *inString, size_t length, int messageEnd, bool blocking, bool modifiable);
bool ShouldPropagateMessageEnd() const {return m_transparent;}
bool ShouldPropagateMessageSeriesEnd() const {return m_transparent;}
struct MessageRange
{
inline bool operator<(const MessageRange &b) const // BCB2006 workaround: this has to be a member function
{return message < b.message || (message == b.message && position < b.position);}
unsigned int message; lword position; lword size;
};
bool m_transparent;
lword m_currentMessageBytes, m_totalBytes;
unsigned int m_currentSeriesMessages, m_totalMessages, m_totalMessageSeries;
std::deque<MessageRange> m_rangesToSkip;
byte *m_begin;
size_t m_length;
};
//! _
class CRYPTOPP_DLL TransparentFilter : public MeterFilter
{
public:
TransparentFilter(BufferedTransformation *attachment=NULL) : MeterFilter(attachment, true) {}
};
//! _
class CRYPTOPP_DLL OpaqueFilter : public MeterFilter
{
public:
OpaqueFilter(BufferedTransformation *attachment=NULL) : MeterFilter(attachment, false) {}
};
/*! FilterWithBufferedInput divides up the input stream into
a first block, a number of middle blocks, and a last block.
First and last blocks are optional, and middle blocks may
be a stream instead (i.e. blockSize == 1).
*/
class CRYPTOPP_DLL FilterWithBufferedInput : public Filter
{
public:
FilterWithBufferedInput(BufferedTransformation *attachment);
//! firstSize and lastSize may be 0, blockSize must be at least 1
FilterWithBufferedInput(size_t firstSize, size_t blockSize, size_t lastSize, BufferedTransformation *attachment);
void IsolatedInitialize(const NameValuePairs &parameters);
size_t Put2(const byte *inString, size_t length, int messageEnd, bool blocking)
{
return PutMaybeModifiable(const_cast<byte *>(inString), length, messageEnd, blocking, false);
}
size_t PutModifiable2(byte *inString, size_t length, int messageEnd, bool blocking)
{
return PutMaybeModifiable(inString, length, messageEnd, blocking, true);
}
/*! calls ForceNextPut() if hardFlush is true */
bool IsolatedFlush(bool hardFlush, bool blocking);
/*! The input buffer may contain more than blockSize bytes if lastSize != 0.
ForceNextPut() forces a call to NextPut() if this is the case.
*/
void ForceNextPut();
protected:
bool DidFirstPut() {return m_firstInputDone;}
virtual void InitializeDerivedAndReturnNewSizes(const NameValuePairs &parameters, size_t &firstSize, size_t &blockSize, size_t &lastSize)
{InitializeDerived(parameters);}
virtual void InitializeDerived(const NameValuePairs &parameters) {}
// FirstPut() is called if (firstSize != 0 and totalLength >= firstSize)
// or (firstSize == 0 and (totalLength > 0 or a MessageEnd() is received))
virtual void FirstPut(const byte *inString) =0;
// NextPut() is called if totalLength >= firstSize+blockSize+lastSize
virtual void NextPutSingle(const byte *inString) {assert(false);}
// Same as NextPut() except length can be a multiple of blockSize
// Either NextPut() or NextPutMultiple() must be overriden
virtual void NextPutMultiple(const byte *inString, size_t length);
// Same as NextPutMultiple(), but inString can be modified
virtual void NextPutModifiable(byte *inString, size_t length)
{NextPutMultiple(inString, length);}
// LastPut() is always called
// if totalLength < firstSize then length == totalLength
// else if totalLength <= firstSize+lastSize then length == totalLength-firstSize
// else lastSize <= length < lastSize+blockSize
virtual void LastPut(const byte *inString, size_t length) =0;
virtual void FlushDerived() {}
protected:
size_t PutMaybeModifiable(byte *begin, size_t length, int messageEnd, bool blocking, bool modifiable);
void NextPutMaybeModifiable(byte *inString, size_t length, bool modifiable)
{
if (modifiable) NextPutModifiable(inString, length);
else NextPutMultiple(inString, length);
}
// This function should no longer be used, put this here to cause a compiler error
// if someone tries to override NextPut().
virtual int NextPut(const byte *inString, size_t length) {assert(false); return 0;}
class BlockQueue
{
public:
void ResetQueue(size_t blockSize, size_t maxBlocks);
byte *GetBlock();
byte *GetContigousBlocks(size_t &numberOfBytes);
size_t GetAll(byte *outString);
void Put(const byte *inString, size_t length);
size_t CurrentSize() const {return m_size;}
size_t MaxSize() const {return m_buffer.size();}
private:
SecByteBlock m_buffer;
size_t m_blockSize, m_maxBlocks, m_size;
byte *m_begin;
};
size_t m_firstSize, m_blockSize, m_lastSize;
bool m_firstInputDone;
BlockQueue m_queue;
};
//! _
class CRYPTOPP_DLL FilterWithInputQueue : public Filter
{
public:
FilterWithInputQueue(BufferedTransformation *attachment=NULL) : Filter(attachment) {}
size_t Put2(const byte *inString, size_t length, int messageEnd, bool blocking)
{
if (!blocking)
throw BlockingInputOnly("FilterWithInputQueue");
m_inQueue.Put(inString, length);
if (messageEnd)
{
IsolatedMessageEnd(blocking);
Output(0, NULL, 0, messageEnd, blocking);
}
return 0;
}
protected:
virtual bool IsolatedMessageEnd(bool blocking) =0;
void IsolatedInitialize(const NameValuePairs &parameters) {m_inQueue.Clear();}
ByteQueue m_inQueue;
};
struct BlockPaddingSchemeDef
{
enum BlockPaddingScheme {NO_PADDING, ZEROS_PADDING, PKCS_PADDING, ONE_AND_ZEROS_PADDING, DEFAULT_PADDING};
};
//! Filter Wrapper for StreamTransformation, optionally handling padding/unpadding when needed
class CRYPTOPP_DLL StreamTransformationFilter : public FilterWithBufferedInput, public BlockPaddingSchemeDef, private FilterPutSpaceHelper
{
public:
/*! DEFAULT_PADDING means PKCS_PADDING if c.MandatoryBlockSize() > 1 && c.MinLastBlockSize() == 0 (e.g. ECB or CBC mode),
otherwise NO_PADDING (OFB, CFB, CTR, CBC-CTS modes).
See http://www.weidai.com/scan-mirror/csp.html for details of the padding schemes. */
StreamTransformationFilter(StreamTransformation &c, BufferedTransformation *attachment = NULL, BlockPaddingScheme padding = DEFAULT_PADDING, bool allowAuthenticatedSymmetricCipher = false);
std::string AlgorithmName() const {return m_cipher.AlgorithmName();}
protected:
void InitializeDerivedAndReturnNewSizes(const NameValuePairs &parameters, size_t &firstSize, size_t &blockSize, size_t &lastSize);
void FirstPut(const byte *inString);
void NextPutMultiple(const byte *inString, size_t length);
void NextPutModifiable(byte *inString, size_t length);
void LastPut(const byte *inString, size_t length);
static size_t LastBlockSize(StreamTransformation &c, BlockPaddingScheme padding);
StreamTransformation &m_cipher;
BlockPaddingScheme m_padding;
unsigned int m_optimalBufferSize;
};
#ifdef CRYPTOPP_MAINTAIN_BACKWARDS_COMPATIBILITY
typedef StreamTransformationFilter StreamCipherFilter;
#endif
//! Filter Wrapper for HashTransformation
class CRYPTOPP_DLL HashFilter : public Bufferless<Filter>, private FilterPutSpaceHelper
{
public:
HashFilter(HashTransformation &hm, BufferedTransformation *attachment = NULL, bool putMessage=false, int truncatedDigestSize=-1, const std::string &messagePutChannel=DEFAULT_CHANNEL, const std::string &hashPutChannel=DEFAULT_CHANNEL);
std::string AlgorithmName() const {return m_hashModule.AlgorithmName();}
void IsolatedInitialize(const NameValuePairs &parameters);
size_t Put2(const byte *begin, size_t length, int messageEnd, bool blocking);
byte * CreatePutSpace(size_t &size) {return m_hashModule.CreateUpdateSpace(size);}
private:
HashTransformation &m_hashModule;
bool m_putMessage;
unsigned int m_digestSize;
byte *m_space;
std::string m_messagePutChannel, m_hashPutChannel;
};
//! Filter Wrapper for HashTransformation
class CRYPTOPP_DLL HashVerificationFilter : public FilterWithBufferedInput
{
public:
class HashVerificationFailed : public Exception
{
public:
HashVerificationFailed()
: Exception(DATA_INTEGRITY_CHECK_FAILED, "HashVerificationFilter: message hash or MAC not valid") {}
};
enum Flags {HASH_AT_END=0, HASH_AT_BEGIN=1, PUT_MESSAGE=2, PUT_HASH=4, PUT_RESULT=8, THROW_EXCEPTION=16, DEFAULT_FLAGS = HASH_AT_BEGIN | PUT_RESULT};
HashVerificationFilter(HashTransformation &hm, BufferedTransformation *attachment = NULL, word32 flags = DEFAULT_FLAGS, int truncatedDigestSize=-1);
std::string AlgorithmName() const {return m_hashModule.AlgorithmName();}
bool GetLastResult() const {return m_verified;}
protected:
void InitializeDerivedAndReturnNewSizes(const NameValuePairs &parameters, size_t &firstSize, size_t &blockSize, size_t &lastSize);
void FirstPut(const byte *inString);
void NextPutMultiple(const byte *inString, size_t length);
void LastPut(const byte *inString, size_t length);
private:
friend class AuthenticatedDecryptionFilter;
HashTransformation &m_hashModule;
word32 m_flags;
unsigned int m_digestSize;
bool m_verified;
SecByteBlock m_expectedHash;
};
typedef HashVerificationFilter HashVerifier; // for backwards compatibility
//! Filter wrapper for encrypting with AuthenticatedSymmetricCipher, optionally handling padding/unpadding when needed
/*! Additional authenticated data should be given in channel "AAD". If putAAD is true, AAD will be Put() to the attached BufferedTransformation in channel "AAD". */
class CRYPTOPP_DLL AuthenticatedEncryptionFilter : public StreamTransformationFilter
{
public:
/*! See StreamTransformationFilter for documentation on BlockPaddingScheme */
AuthenticatedEncryptionFilter(AuthenticatedSymmetricCipher &c, BufferedTransformation *attachment = NULL, bool putAAD=false, int truncatedDigestSize=-1, const std::string &macChannel=DEFAULT_CHANNEL, BlockPaddingScheme padding = DEFAULT_PADDING);
void IsolatedInitialize(const NameValuePairs &parameters);
byte * ChannelCreatePutSpace(const std::string &channel, size_t &size);
size_t ChannelPut2(const std::string &channel, const byte *begin, size_t length, int messageEnd, bool blocking);
void LastPut(const byte *inString, size_t length);
protected:
HashFilter m_hf;
};
//! Filter wrapper for decrypting with AuthenticatedSymmetricCipher, optionally handling padding/unpadding when needed
/*! Additional authenticated data should be given in channel "AAD". */
class CRYPTOPP_DLL AuthenticatedDecryptionFilter : public FilterWithBufferedInput, public BlockPaddingSchemeDef
{
public:
enum Flags {MAC_AT_END=0, MAC_AT_BEGIN=1, THROW_EXCEPTION=16, DEFAULT_FLAGS = THROW_EXCEPTION};
/*! See StreamTransformationFilter for documentation on BlockPaddingScheme */
AuthenticatedDecryptionFilter(AuthenticatedSymmetricCipher &c, BufferedTransformation *attachment = NULL, word32 flags = DEFAULT_FLAGS, int truncatedDigestSize=-1, BlockPaddingScheme padding = DEFAULT_PADDING);
std::string AlgorithmName() const {return m_hashVerifier.AlgorithmName();}
byte * ChannelCreatePutSpace(const std::string &channel, size_t &size);
size_t ChannelPut2(const std::string &channel, const byte *begin, size_t length, int messageEnd, bool blocking);
bool GetLastResult() const {return m_hashVerifier.GetLastResult();}
protected:
void InitializeDerivedAndReturnNewSizes(const NameValuePairs &parameters, size_t &firstSize, size_t &blockSize, size_t &lastSize);
void FirstPut(const byte *inString);
void NextPutMultiple(const byte *inString, size_t length);
void LastPut(const byte *inString, size_t length);
HashVerificationFilter m_hashVerifier;
StreamTransformationFilter m_streamFilter;
};
//! Filter Wrapper for PK_Signer
class CRYPTOPP_DLL SignerFilter : public Unflushable<Filter>
{
public:
SignerFilter(RandomNumberGenerator &rng, const PK_Signer &signer, BufferedTransformation *attachment = NULL, bool putMessage=false)
: m_rng(rng), m_signer(signer), m_messageAccumulator(signer.NewSignatureAccumulator(rng)), m_putMessage(putMessage) {Detach(attachment);}
std::string AlgorithmName() const {return m_signer.AlgorithmName();}
void IsolatedInitialize(const NameValuePairs &parameters);
size_t Put2(const byte *begin, size_t length, int messageEnd, bool blocking);
private:
RandomNumberGenerator &m_rng;
const PK_Signer &m_signer;
member_ptr<PK_MessageAccumulator> m_messageAccumulator;
bool m_putMessage;
SecByteBlock m_buf;
};
//! Filter Wrapper for PK_Verifier
class CRYPTOPP_DLL SignatureVerificationFilter : public FilterWithBufferedInput
{
public:
class SignatureVerificationFailed : public Exception
{
public:
SignatureVerificationFailed()
: Exception(DATA_INTEGRITY_CHECK_FAILED, "VerifierFilter: digital signature not valid") {}
};
enum Flags {SIGNATURE_AT_END=0, SIGNATURE_AT_BEGIN=1, PUT_MESSAGE=2, PUT_SIGNATURE=4, PUT_RESULT=8, THROW_EXCEPTION=16, DEFAULT_FLAGS = SIGNATURE_AT_BEGIN | PUT_RESULT};
SignatureVerificationFilter(const PK_Verifier &verifier, BufferedTransformation *attachment = NULL, word32 flags = DEFAULT_FLAGS);
std::string AlgorithmName() const {return m_verifier.AlgorithmName();}
bool GetLastResult() const {return m_verified;}
protected:
void InitializeDerivedAndReturnNewSizes(const NameValuePairs &parameters, size_t &firstSize, size_t &blockSize, size_t &lastSize);
void FirstPut(const byte *inString);
void NextPutMultiple(const byte *inString, size_t length);
void LastPut(const byte *inString, size_t length);
private:
const PK_Verifier &m_verifier;
member_ptr<PK_MessageAccumulator> m_messageAccumulator;
word32 m_flags;
SecByteBlock m_signature;
bool m_verified;
};
typedef SignatureVerificationFilter VerifierFilter; // for backwards compatibility
//! Redirect input to another BufferedTransformation without owning it
class CRYPTOPP_DLL Redirector : public CustomSignalPropagation<Sink>
{
public:
enum Behavior
{
DATA_ONLY = 0x00,
PASS_SIGNALS = 0x01,
PASS_WAIT_OBJECTS = 0x02,
PASS_EVERYTHING = PASS_SIGNALS | PASS_WAIT_OBJECTS
};
Redirector() : m_target(NULL), m_behavior(PASS_EVERYTHING) {}
Redirector(BufferedTransformation &target, Behavior behavior=PASS_EVERYTHING)
: m_target(&target), m_behavior(behavior) {}
void Redirect(BufferedTransformation &target) {m_target = &target;}
void StopRedirection() {m_target = NULL;}
Behavior GetBehavior() {return (Behavior) m_behavior;}
void SetBehavior(Behavior behavior) {m_behavior=behavior;}
bool GetPassSignals() const {return (m_behavior & PASS_SIGNALS) != 0;}
void SetPassSignals(bool pass) { if (pass) m_behavior |= PASS_SIGNALS; else m_behavior &= ~(word32) PASS_SIGNALS; }
bool GetPassWaitObjects() const {return (m_behavior & PASS_WAIT_OBJECTS) != 0;}
void SetPassWaitObjects(bool pass) { if (pass) m_behavior |= PASS_WAIT_OBJECTS; else m_behavior &= ~(word32) PASS_WAIT_OBJECTS; }
bool CanModifyInput() const
{return m_target ? m_target->CanModifyInput() : false;}
void Initialize(const NameValuePairs &parameters, int propagation);
byte * CreatePutSpace(size_t &size)
{return m_target ? m_target->CreatePutSpace(size) : (byte *)(size=0, NULL);}
size_t Put2(const byte *begin, size_t length, int messageEnd, bool blocking)
{return m_target ? m_target->Put2(begin, length, GetPassSignals() ? messageEnd : 0, blocking) : 0;}
bool Flush(bool hardFlush, int propagation=-1, bool blocking=true)
{return m_target && GetPassSignals() ? m_target->Flush(hardFlush, propagation, blocking) : false;}
bool MessageSeriesEnd(int propagation=-1, bool blocking=true)
{return m_target && GetPassSignals() ? m_target->MessageSeriesEnd(propagation, blocking) : false;}
byte * ChannelCreatePutSpace(const std::string &channel, size_t &size)
{return m_target ? m_target->ChannelCreatePutSpace(channel, size) : (byte *)(size=0, NULL);}
size_t ChannelPut2(const std::string &channel, const byte *begin, size_t length, int messageEnd, bool blocking)
{return m_target ? m_target->ChannelPut2(channel, begin, length, GetPassSignals() ? messageEnd : 0, blocking) : 0;}
size_t ChannelPutModifiable2(const std::string &channel, byte *begin, size_t length, int messageEnd, bool blocking)
{return m_target ? m_target->ChannelPutModifiable2(channel, begin, length, GetPassSignals() ? messageEnd : 0, blocking) : 0;}
bool ChannelFlush(const std::string &channel, bool completeFlush, int propagation=-1, bool blocking=true)
{return m_target && GetPassSignals() ? m_target->ChannelFlush(channel, completeFlush, propagation, blocking) : false;}
bool ChannelMessageSeriesEnd(const std::string &channel, int propagation=-1, bool blocking=true)
{return m_target && GetPassSignals() ? m_target->ChannelMessageSeriesEnd(channel, propagation, blocking) : false;}
unsigned int GetMaxWaitObjectCount() const
{ return m_target && GetPassWaitObjects() ? m_target->GetMaxWaitObjectCount() : 0; }
void GetWaitObjects(WaitObjectContainer &container, CallStack const& callStack)
{ if (m_target && GetPassWaitObjects()) m_target->GetWaitObjects(container, callStack); }
private:
BufferedTransformation *m_target;
word32 m_behavior;
};
// Used By ProxyFilter
class CRYPTOPP_DLL OutputProxy : public CustomSignalPropagation<Sink>
{
public:
OutputProxy(BufferedTransformation &owner, bool passSignal) : m_owner(owner), m_passSignal(passSignal) {}
bool GetPassSignal() const {return m_passSignal;}
void SetPassSignal(bool passSignal) {m_passSignal = passSignal;}
byte * CreatePutSpace(size_t &size)
{return m_owner.AttachedTransformation()->CreatePutSpace(size);}
size_t Put2(const byte *begin, size_t length, int messageEnd, bool blocking)
{return m_owner.AttachedTransformation()->Put2(begin, length, m_passSignal ? messageEnd : 0, blocking);}
size_t PutModifiable2(byte *begin, size_t length, int messageEnd, bool blocking)
{return m_owner.AttachedTransformation()->PutModifiable2(begin, length, m_passSignal ? messageEnd : 0, blocking);}
void Initialize(const NameValuePairs &parameters=g_nullNameValuePairs, int propagation=-1)
{if (m_passSignal) m_owner.AttachedTransformation()->Initialize(parameters, propagation);}
bool Flush(bool hardFlush, int propagation=-1, bool blocking=true)
{return m_passSignal ? m_owner.AttachedTransformation()->Flush(hardFlush, propagation, blocking) : false;}
bool MessageSeriesEnd(int propagation=-1, bool blocking=true)
{return m_passSignal ? m_owner.AttachedTransformation()->MessageSeriesEnd(propagation, blocking) : false;}
byte * ChannelCreatePutSpace(const std::string &channel, size_t &size)
{return m_owner.AttachedTransformation()->ChannelCreatePutSpace(channel, size);}
size_t ChannelPut2(const std::string &channel, const byte *begin, size_t length, int messageEnd, bool blocking)
{return m_owner.AttachedTransformation()->ChannelPut2(channel, begin, length, m_passSignal ? messageEnd : 0, blocking);}
size_t ChannelPutModifiable2(const std::string &channel, byte *begin, size_t length, int messageEnd, bool blocking)
{return m_owner.AttachedTransformation()->ChannelPutModifiable2(channel, begin, length, m_passSignal ? messageEnd : 0, blocking);}
bool ChannelFlush(const std::string &channel, bool completeFlush, int propagation=-1, bool blocking=true)
{return m_passSignal ? m_owner.AttachedTransformation()->ChannelFlush(channel, completeFlush, propagation, blocking) : false;}
bool ChannelMessageSeriesEnd(const std::string &channel, int propagation=-1, bool blocking=true)
{return m_passSignal ? m_owner.AttachedTransformation()->ChannelMessageSeriesEnd(channel, propagation, blocking) : false;}
private:
BufferedTransformation &m_owner;
bool m_passSignal;
};
//! Base class for Filter classes that are proxies for a chain of other filters.
class CRYPTOPP_DLL ProxyFilter : public FilterWithBufferedInput
{
public:
ProxyFilter(BufferedTransformation *filter, size_t firstSize, size_t lastSize, BufferedTransformation *attachment);
bool IsolatedFlush(bool hardFlush, bool blocking);
void SetFilter(Filter *filter);
void NextPutMultiple(const byte *s, size_t len);
void NextPutModifiable(byte *inString, size_t length);
protected:
member_ptr<BufferedTransformation> m_filter;
};
//! simple proxy filter that doesn't modify the underlying filter's input or output
class CRYPTOPP_DLL SimpleProxyFilter : public ProxyFilter
{
public:
SimpleProxyFilter(BufferedTransformation *filter, BufferedTransformation *attachment)
: ProxyFilter(filter, 0, 0, attachment) {}
void FirstPut(const byte *) {}
void LastPut(const byte *, size_t) {m_filter->MessageEnd();}
};
//! proxy for the filter created by PK_Encryptor::CreateEncryptionFilter
/*! This class is here just to provide symmetry with VerifierFilter. */
class CRYPTOPP_DLL PK_EncryptorFilter : public SimpleProxyFilter
{
public:
PK_EncryptorFilter(RandomNumberGenerator &rng, const PK_Encryptor &encryptor, BufferedTransformation *attachment = NULL)
: SimpleProxyFilter(encryptor.CreateEncryptionFilter(rng), attachment) {}
};
//! proxy for the filter created by PK_Decryptor::CreateDecryptionFilter
/*! This class is here just to provide symmetry with SignerFilter. */
class CRYPTOPP_DLL PK_DecryptorFilter : public SimpleProxyFilter
{
public:
PK_DecryptorFilter(RandomNumberGenerator &rng, const PK_Decryptor &decryptor, BufferedTransformation *attachment = NULL)
: SimpleProxyFilter(decryptor.CreateDecryptionFilter(rng), attachment) {}
};
//! Append input to a string object
template <class T>
class StringSinkTemplate : public Bufferless<Sink>
{
public:
// VC60 workaround: no T::char_type
typedef typename T::traits_type::char_type char_type;
StringSinkTemplate(T &output)
: m_output(&output) {assert(sizeof(output[0])==1);}
void IsolatedInitialize(const NameValuePairs &parameters)
{if (!parameters.GetValue("OutputStringPointer", m_output)) throw InvalidArgument("StringSink: OutputStringPointer not specified");}
size_t Put2(const byte *begin, size_t length, int messageEnd, bool blocking)
{
if (length > 0)
{
typename T::size_type size = m_output->size();
if (length < size && size + length > m_output->capacity())
m_output->reserve(2*size);
m_output->append((const char_type *)begin, (const char_type *)begin+length);
}
return 0;
}
private:
T *m_output;
};
//! Append input to an std::string
CRYPTOPP_DLL_TEMPLATE_CLASS StringSinkTemplate<std::string>;
typedef StringSinkTemplate<std::string> StringSink;
//! incorporates input into RNG as additional entropy
class RandomNumberSink : public Bufferless<Sink>
{
public:
RandomNumberSink()
: m_rng(NULL) {}
RandomNumberSink(RandomNumberGenerator &rng)
: m_rng(&rng) {}
void IsolatedInitialize(const NameValuePairs &parameters);
size_t Put2(const byte *begin, size_t length, int messageEnd, bool blocking);
private:
RandomNumberGenerator *m_rng;
};
//! Copy input to a memory buffer
class CRYPTOPP_DLL ArraySink : public Bufferless<Sink>
{
public:
ArraySink(const NameValuePairs &parameters = g_nullNameValuePairs) {IsolatedInitialize(parameters);}
ArraySink(byte *buf, size_t size) : m_buf(buf), m_size(size), m_total(0) {}
size_t AvailableSize() {return SaturatingSubtract(m_size, m_total);}
lword TotalPutLength() {return m_total;}
void IsolatedInitialize(const NameValuePairs &parameters);
byte * CreatePutSpace(size_t &size);
size_t Put2(const byte *begin, size_t length, int messageEnd, bool blocking);
protected:
byte *m_buf;
size_t m_size;
lword m_total;
};
//! Xor input to a memory buffer
class CRYPTOPP_DLL ArrayXorSink : public ArraySink
{
public:
ArrayXorSink(byte *buf, size_t size)
: ArraySink(buf, size) {}
size_t Put2(const byte *begin, size_t length, int messageEnd, bool blocking);
byte * CreatePutSpace(size_t &size) {return BufferedTransformation::CreatePutSpace(size);}
};
//! string-based implementation of Store interface
class StringStore : public Store
{
public:
StringStore(const char *string = NULL)
{StoreInitialize(MakeParameters("InputBuffer", ConstByteArrayParameter(string)));}
StringStore(const byte *string, size_t length)
{StoreInitialize(MakeParameters("InputBuffer", ConstByteArrayParameter(string, length)));}
template <class T> StringStore(const T &string)
{StoreInitialize(MakeParameters("InputBuffer", ConstByteArrayParameter(string)));}
CRYPTOPP_DLL size_t TransferTo2(BufferedTransformation &target, lword &transferBytes, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true);
CRYPTOPP_DLL size_t CopyRangeTo2(BufferedTransformation &target, lword &begin, lword end=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true) const;
private:
CRYPTOPP_DLL void StoreInitialize(const NameValuePairs &parameters);
const byte *m_store;
size_t m_length, m_count;
};
//! RNG-based implementation of Source interface
class CRYPTOPP_DLL RandomNumberStore : public Store
{
public:
RandomNumberStore()
: m_rng(NULL), m_length(0), m_count(0) {}
RandomNumberStore(RandomNumberGenerator &rng, lword length)
: m_rng(&rng), m_length(length), m_count(0) {}
bool AnyRetrievable() const {return MaxRetrievable() != 0;}
lword MaxRetrievable() const {return m_length-m_count;}
size_t TransferTo2(BufferedTransformation &target, lword &transferBytes, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true);
size_t CopyRangeTo2(BufferedTransformation &target, lword &begin, lword end=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true) const
{
throw NotImplemented("RandomNumberStore: CopyRangeTo2() is not supported by this store");
}
private:
void StoreInitialize(const NameValuePairs &parameters);
RandomNumberGenerator *m_rng;
lword m_length, m_count;
};
//! empty store
class CRYPTOPP_DLL NullStore : public Store
{
public:
NullStore(lword size = ULONG_MAX) : m_size(size) {}
void StoreInitialize(const NameValuePairs &parameters) {}
lword MaxRetrievable() const {return m_size;}
size_t TransferTo2(BufferedTransformation &target, lword &transferBytes, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true);
size_t CopyRangeTo2(BufferedTransformation &target, lword &begin, lword end=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true) const;
private:
lword m_size;
};
//! A Filter that pumps data into its attachment as input
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE Source : public InputRejecting<Filter>
{
public:
Source(BufferedTransformation *attachment = NULL)
{Source::Detach(attachment);}
lword Pump(lword pumpMax=size_t(0)-1)
{Pump2(pumpMax); return pumpMax;}
unsigned int PumpMessages(unsigned int count=UINT_MAX)
{PumpMessages2(count); return count;}
void PumpAll()
{PumpAll2();}
virtual size_t Pump2(lword &byteCount, bool blocking=true) =0;
virtual size_t PumpMessages2(unsigned int &messageCount, bool blocking=true) =0;
virtual size_t PumpAll2(bool blocking=true);
virtual bool SourceExhausted() const =0;
protected:
void SourceInitialize(bool pumpAll, const NameValuePairs &parameters)
{
IsolatedInitialize(parameters);
if (pumpAll)
PumpAll();
}
};
//! Turn a Store into a Source
template <class T>
class SourceTemplate : public Source
{
public:
SourceTemplate<T>(BufferedTransformation *attachment)
: Source(attachment) {}
void IsolatedInitialize(const NameValuePairs &parameters)
{m_store.IsolatedInitialize(parameters);}
size_t Pump2(lword &byteCount, bool blocking=true)
{return m_store.TransferTo2(*AttachedTransformation(), byteCount, DEFAULT_CHANNEL, blocking);}
size_t PumpMessages2(unsigned int &messageCount, bool blocking=true)
{return m_store.TransferMessagesTo2(*AttachedTransformation(), messageCount, DEFAULT_CHANNEL, blocking);}
size_t PumpAll2(bool blocking=true)
{return m_store.TransferAllTo2(*AttachedTransformation(), DEFAULT_CHANNEL, blocking);}
bool SourceExhausted() const
{return !m_store.AnyRetrievable() && !m_store.AnyMessages();}
void SetAutoSignalPropagation(int propagation)
{m_store.SetAutoSignalPropagation(propagation);}
int GetAutoSignalPropagation() const
{return m_store.GetAutoSignalPropagation();}
protected:
T m_store;
};
//! string-based implementation of Source interface
class CRYPTOPP_DLL StringSource : public SourceTemplate<StringStore>
{
public:
StringSource(BufferedTransformation *attachment = NULL)
: SourceTemplate<StringStore>(attachment) {}
//! zero terminated string as source
StringSource(const char *string, bool pumpAll, BufferedTransformation *attachment = NULL)
: SourceTemplate<StringStore>(attachment) {SourceInitialize(pumpAll, MakeParameters("InputBuffer", ConstByteArrayParameter(string)));}
//! binary byte array as source
StringSource(const byte *string, size_t length, bool pumpAll, BufferedTransformation *attachment = NULL)
: SourceTemplate<StringStore>(attachment) {SourceInitialize(pumpAll, MakeParameters("InputBuffer", ConstByteArrayParameter(string, length)));}
//! std::string as source
StringSource(const std::string &string, bool pumpAll, BufferedTransformation *attachment = NULL)
: SourceTemplate<StringStore>(attachment) {SourceInitialize(pumpAll, MakeParameters("InputBuffer", ConstByteArrayParameter(string)));}
};
//! use the third constructor for an array source
typedef StringSource ArraySource;
//! RNG-based implementation of Source interface
class CRYPTOPP_DLL RandomNumberSource : public SourceTemplate<RandomNumberStore>
{
public:
RandomNumberSource(RandomNumberGenerator &rng, int length, bool pumpAll, BufferedTransformation *attachment = NULL)
: SourceTemplate<RandomNumberStore>(attachment)
{SourceInitialize(pumpAll, MakeParameters("RandomNumberGeneratorPointer", &rng)("RandomNumberStoreSize", length));}
};
NAMESPACE_END
#endif

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// fips140.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "fips140.h"
#include "trdlocal.h" // needs to be included last for cygwin
NAMESPACE_BEGIN(CryptoPP)
// Define this to 1 to turn on FIPS 140-2 compliance features, including additional tests during
// startup, random number generation, and key generation. These tests may affect performance.
#ifndef CRYPTOPP_ENABLE_COMPLIANCE_WITH_FIPS_140_2
#define CRYPTOPP_ENABLE_COMPLIANCE_WITH_FIPS_140_2 0
#endif
#if (CRYPTOPP_ENABLE_COMPLIANCE_WITH_FIPS_140_2 && !defined(THREADS_AVAILABLE))
#error FIPS 140-2 compliance requires the availability of thread local storage.
#endif
#if (CRYPTOPP_ENABLE_COMPLIANCE_WITH_FIPS_140_2 && !defined(OS_RNG_AVAILABLE))
#error FIPS 140-2 compliance requires the availability of OS provided RNG.
#endif
PowerUpSelfTestStatus g_powerUpSelfTestStatus = POWER_UP_SELF_TEST_NOT_DONE;
bool FIPS_140_2_ComplianceEnabled()
{
return CRYPTOPP_ENABLE_COMPLIANCE_WITH_FIPS_140_2;
}
void SimulatePowerUpSelfTestFailure()
{
g_powerUpSelfTestStatus = POWER_UP_SELF_TEST_FAILED;
}
PowerUpSelfTestStatus CRYPTOPP_API GetPowerUpSelfTestStatus()
{
return g_powerUpSelfTestStatus;
}
#if CRYPTOPP_ENABLE_COMPLIANCE_WITH_FIPS_140_2
ThreadLocalStorage & AccessPowerUpSelfTestInProgress()
{
static ThreadLocalStorage selfTestInProgress;
return selfTestInProgress;
}
#endif
bool PowerUpSelfTestInProgressOnThisThread()
{
#if CRYPTOPP_ENABLE_COMPLIANCE_WITH_FIPS_140_2
return AccessPowerUpSelfTestInProgress().GetValue() != NULL;
#else
assert(false); // should not be called
return false;
#endif
}
void SetPowerUpSelfTestInProgressOnThisThread(bool inProgress)
{
#if CRYPTOPP_ENABLE_COMPLIANCE_WITH_FIPS_140_2
AccessPowerUpSelfTestInProgress().SetValue((void *)inProgress);
#endif
}
void EncryptionPairwiseConsistencyTest_FIPS_140_Only(const PK_Encryptor &encryptor, const PK_Decryptor &decryptor)
{
#if CRYPTOPP_ENABLE_COMPLIANCE_WITH_FIPS_140_2
EncryptionPairwiseConsistencyTest(encryptor, decryptor);
#endif
}
void SignaturePairwiseConsistencyTest_FIPS_140_Only(const PK_Signer &signer, const PK_Verifier &verifier)
{
#if CRYPTOPP_ENABLE_COMPLIANCE_WITH_FIPS_140_2
SignaturePairwiseConsistencyTest(signer, verifier);
#endif
}
NAMESPACE_END
#endif

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#ifndef CRYPTOPP_FIPS140_H
#define CRYPTOPP_FIPS140_H
/*! \file
FIPS 140 related functions and classes.
*/
#include "cryptlib.h"
#include "secblock.h"
NAMESPACE_BEGIN(CryptoPP)
//! exception thrown when a crypto algorithm is used after a self test fails
class CRYPTOPP_DLL SelfTestFailure : public Exception
{
public:
explicit SelfTestFailure(const std::string &s) : Exception(OTHER_ERROR, s) {}
};
//! returns whether FIPS 140-2 compliance features were enabled at compile time
CRYPTOPP_DLL bool CRYPTOPP_API FIPS_140_2_ComplianceEnabled();
//! enum values representing status of the power-up self test
enum PowerUpSelfTestStatus {POWER_UP_SELF_TEST_NOT_DONE, POWER_UP_SELF_TEST_FAILED, POWER_UP_SELF_TEST_PASSED};
//! perform the power-up self test, and set the self test status
CRYPTOPP_DLL void CRYPTOPP_API DoPowerUpSelfTest(const char *moduleFilename, const byte *expectedModuleMac);
//! perform the power-up self test using the filename of this DLL and the embedded module MAC
CRYPTOPP_DLL void CRYPTOPP_API DoDllPowerUpSelfTest();
//! set the power-up self test status to POWER_UP_SELF_TEST_FAILED
CRYPTOPP_DLL void CRYPTOPP_API SimulatePowerUpSelfTestFailure();
//! return the current power-up self test status
CRYPTOPP_DLL PowerUpSelfTestStatus CRYPTOPP_API GetPowerUpSelfTestStatus();
typedef PowerUpSelfTestStatus (CRYPTOPP_API * PGetPowerUpSelfTestStatus)();
CRYPTOPP_DLL MessageAuthenticationCode * CRYPTOPP_API NewIntegrityCheckingMAC();
CRYPTOPP_DLL bool CRYPTOPP_API IntegrityCheckModule(const char *moduleFilename, const byte *expectedModuleMac, SecByteBlock *pActualMac = NULL, unsigned long *pMacFileLocation = NULL);
// this is used by Algorithm constructor to allow Algorithm objects to be constructed for the self test
bool PowerUpSelfTestInProgressOnThisThread();
void SetPowerUpSelfTestInProgressOnThisThread(bool inProgress);
void SignaturePairwiseConsistencyTest(const PK_Signer &signer, const PK_Verifier &verifier);
void EncryptionPairwiseConsistencyTest(const PK_Encryptor &encryptor, const PK_Decryptor &decryptor);
void SignaturePairwiseConsistencyTest_FIPS_140_Only(const PK_Signer &signer, const PK_Verifier &verifier);
void EncryptionPairwiseConsistencyTest_FIPS_140_Only(const PK_Encryptor &encryptor, const PK_Decryptor &decryptor);
#define CRYPTOPP_DUMMY_DLL_MAC "MAC_51f34b8db820ae8"
NAMESPACE_END
#endif

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lib/cryptopp/fltrimpl.h
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#ifndef CRYPTOPP_FLTRIMPL_H
#define CRYPTOPP_FLTRIMPL_H
#define FILTER_BEGIN \
switch (m_continueAt) \
{ \
case 0: \
m_inputPosition = 0;
#define FILTER_END_NO_MESSAGE_END_NO_RETURN \
break; \
default: \
assert(false); \
}
#define FILTER_END_NO_MESSAGE_END \
FILTER_END_NO_MESSAGE_END_NO_RETURN \
return 0;
/*
#define FILTER_END \
case -1: \
if (messageEnd && Output(-1, NULL, 0, messageEnd, blocking)) \
return 1; \
FILTER_END_NO_MESSAGE_END
*/
#define FILTER_OUTPUT3(site, statement, output, length, messageEnd, channel) \
{\
case site: \
statement; \
if (Output(site, output, length, messageEnd, blocking, channel)) \
return STDMAX(size_t(1), length-m_inputPosition);\
}
#define FILTER_OUTPUT2(site, statement, output, length, messageEnd) \
FILTER_OUTPUT3(site, statement, output, length, messageEnd, DEFAULT_CHANNEL)
#define FILTER_OUTPUT(site, output, length, messageEnd) \
FILTER_OUTPUT2(site, 0, output, length, messageEnd)
#define FILTER_OUTPUT_BYTE(site, output) \
FILTER_OUTPUT(site, &(const byte &)(byte)output, 1, 0)
#define FILTER_OUTPUT2_MODIFIABLE(site, statement, output, length, messageEnd) \
{\
case site: \
statement; \
if (OutputModifiable(site, output, length, messageEnd, blocking)) \
return STDMAX(size_t(1), length-m_inputPosition);\
}
#define FILTER_OUTPUT_MODIFIABLE(site, output, length, messageEnd) \
FILTER_OUTPUT2_MODIFIABLE(site, 0, output, length, messageEnd)
#define FILTER_OUTPUT2_MAYBE_MODIFIABLE(site, statement, output, length, messageEnd, modifiable) \
{\
case site: \
statement; \
if (modifiable ? OutputModifiable(site, output, length, messageEnd, blocking) : Output(site, output, length, messageEnd, blocking)) \
return STDMAX(size_t(1), length-m_inputPosition);\
}
#define FILTER_OUTPUT_MAYBE_MODIFIABLE(site, output, length, messageEnd, modifiable) \
FILTER_OUTPUT2_MAYBE_MODIFIABLE(site, 0, output, length, messageEnd, modifiable)
#endif

828
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// gcm.cpp - written and placed in the public domain by Wei Dai
// use "cl /EP /P /DCRYPTOPP_GENERATE_X64_MASM gcm.cpp" to generate MASM code
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#ifndef CRYPTOPP_GENERATE_X64_MASM
#include "gcm.h"
#include "cpu.h"
NAMESPACE_BEGIN(CryptoPP)
word16 GCM_Base::s_reductionTable[256];
volatile bool GCM_Base::s_reductionTableInitialized = false;
void GCM_Base::GCTR::IncrementCounterBy256()
{
IncrementCounterByOne(m_counterArray+BlockSize()-4, 3);
}
#if 0
// preserved for testing
void gcm_gf_mult(const unsigned char *a, const unsigned char *b, unsigned char *c)
{
word64 Z0=0, Z1=0, V0, V1;
typedef BlockGetAndPut<word64, BigEndian> Block;
Block::Get(a)(V0)(V1);
for (int i=0; i<16; i++)
{
for (int j=0x80; j!=0; j>>=1)
{
int x = b[i] & j;
Z0 ^= x ? V0 : 0;
Z1 ^= x ? V1 : 0;
x = (int)V1 & 1;
V1 = (V1>>1) | (V0<<63);
V0 = (V0>>1) ^ (x ? W64LIT(0xe1) << 56 : 0);
}
}
Block::Put(NULL, c)(Z0)(Z1);
}
__m128i _mm_clmulepi64_si128(const __m128i &a, const __m128i &b, int i)
{
word64 A[1] = {ByteReverse(((word64*)&a)[i&1])};
word64 B[1] = {ByteReverse(((word64*)&b)[i>>4])};
PolynomialMod2 pa((byte *)A, 8);
PolynomialMod2 pb((byte *)B, 8);
PolynomialMod2 c = pa*pb;
__m128i output;
for (int i=0; i<16; i++)
((byte *)&output)[i] = c.GetByte(i);
return output;
}
#endif
#if CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE || CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE
inline static void SSE2_Xor16(byte *a, const byte *b, const byte *c)
{
#if CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE
*(__m128i *)a = _mm_xor_si128(*(__m128i *)b, *(__m128i *)c);
#else
asm ("movdqa %1, %%xmm0; pxor %2, %%xmm0; movdqa %%xmm0, %0;" : "=m" (a[0]) : "m"(b[0]), "m"(c[0]));
#endif
}
#endif
inline static void Xor16(byte *a, const byte *b, const byte *c)
{
((word64 *)a)[0] = ((word64 *)b)[0] ^ ((word64 *)c)[0];
((word64 *)a)[1] = ((word64 *)b)[1] ^ ((word64 *)c)[1];
}
#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE
static CRYPTOPP_ALIGN_DATA(16) const word64 s_clmulConstants64[] = {
W64LIT(0xe100000000000000), W64LIT(0xc200000000000000),
W64LIT(0x08090a0b0c0d0e0f), W64LIT(0x0001020304050607),
W64LIT(0x0001020304050607), W64LIT(0x08090a0b0c0d0e0f)};
static const __m128i *s_clmulConstants = (const __m128i *)s_clmulConstants64;
static const unsigned int s_clmulTableSizeInBlocks = 8;
inline __m128i CLMUL_Reduce(__m128i c0, __m128i c1, __m128i c2, const __m128i &r)
{
/*
The polynomial to be reduced is c0 * x^128 + c1 * x^64 + c2. c0t below refers to the most
significant half of c0 as a polynomial, which, due to GCM's bit reflection, are in the
rightmost bit positions, and the lowest byte addresses.
c1 ^= c0t * 0xc200000000000000
c2t ^= c0t
t = shift (c1t ^ c0b) left 1 bit
c2 ^= t * 0xe100000000000000
c2t ^= c1b
shift c2 left 1 bit and xor in lowest bit of c1t
*/
#if 0 // MSVC 2010 workaround: see http://connect.microsoft.com/VisualStudio/feedback/details/575301
c2 = _mm_xor_si128(c2, _mm_move_epi64(c0));
#else
c1 = _mm_xor_si128(c1, _mm_slli_si128(c0, 8));
#endif
c1 = _mm_xor_si128(c1, _mm_clmulepi64_si128(c0, r, 0x10));
c0 = _mm_srli_si128(c0, 8);
c0 = _mm_xor_si128(c0, c1);
c0 = _mm_slli_epi64(c0, 1);
c0 = _mm_clmulepi64_si128(c0, r, 0);
c2 = _mm_xor_si128(c2, c0);
c2 = _mm_xor_si128(c2, _mm_srli_si128(c1, 8));
c1 = _mm_unpacklo_epi64(c1, c2);
c1 = _mm_srli_epi64(c1, 63);
c2 = _mm_slli_epi64(c2, 1);
return _mm_xor_si128(c2, c1);
}
inline __m128i CLMUL_GF_Mul(const __m128i &x, const __m128i &h, const __m128i &r)
{
__m128i c0 = _mm_clmulepi64_si128(x,h,0);
__m128i c1 = _mm_xor_si128(_mm_clmulepi64_si128(x,h,1), _mm_clmulepi64_si128(x,h,0x10));
__m128i c2 = _mm_clmulepi64_si128(x,h,0x11);
return CLMUL_Reduce(c0, c1, c2, r);
}
#endif
void GCM_Base::SetKeyWithoutResync(const byte *userKey, size_t keylength, const NameValuePairs &params)
{
BlockCipher &blockCipher = AccessBlockCipher();
blockCipher.SetKey(userKey, keylength, params);
if (blockCipher.BlockSize() != REQUIRED_BLOCKSIZE)
throw InvalidArgument(AlgorithmName() + ": block size of underlying block cipher is not 16");
int tableSize, i, j, k;
#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE
if (HasCLMUL())
{
params.GetIntValue(Name::TableSize(), tableSize); // avoid "parameter not used" error
tableSize = s_clmulTableSizeInBlocks * REQUIRED_BLOCKSIZE;
}
else
#endif
{
if (params.GetIntValue(Name::TableSize(), tableSize))
tableSize = (tableSize >= 64*1024) ? 64*1024 : 2*1024;
else
tableSize = (GetTablesOption() == GCM_64K_Tables) ? 64*1024 : 2*1024;
#if defined(_MSC_VER) && (_MSC_VER >= 1300 && _MSC_VER < 1400)
// VC 2003 workaround: compiler generates bad code for 64K tables
tableSize = 2*1024;
#endif
}
m_buffer.resize(3*REQUIRED_BLOCKSIZE + tableSize);
byte *table = MulTable();
byte *hashKey = HashKey();
memset(hashKey, 0, REQUIRED_BLOCKSIZE);
blockCipher.ProcessBlock(hashKey);
#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE
if (HasCLMUL())
{
const __m128i r = s_clmulConstants[0];
__m128i h0 = _mm_shuffle_epi8(_mm_load_si128((__m128i *)hashKey), s_clmulConstants[1]);
__m128i h = h0;
for (i=0; i<tableSize; i+=32)
{
__m128i h1 = CLMUL_GF_Mul(h, h0, r);
_mm_storel_epi64((__m128i *)(table+i), h);
_mm_storeu_si128((__m128i *)(table+i+16), h1);
_mm_storeu_si128((__m128i *)(table+i+8), h);
_mm_storel_epi64((__m128i *)(table+i+8), h1);
h = CLMUL_GF_Mul(h1, h0, r);
}
return;
}
#endif
word64 V0, V1;
typedef BlockGetAndPut<word64, BigEndian> Block;
Block::Get(hashKey)(V0)(V1);
if (tableSize == 64*1024)
{
for (i=0; i<128; i++)
{
k = i%8;
Block::Put(NULL, table+(i/8)*256*16+(size_t(1)<<(11-k)))(V0)(V1);
int x = (int)V1 & 1;
V1 = (V1>>1) | (V0<<63);
V0 = (V0>>1) ^ (x ? W64LIT(0xe1) << 56 : 0);
}
for (i=0; i<16; i++)
{
memset(table+i*256*16, 0, 16);
#if CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE || CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE
if (HasSSE2())
for (j=2; j<=0x80; j*=2)
for (k=1; k<j; k++)
SSE2_Xor16(table+i*256*16+(j+k)*16, table+i*256*16+j*16, table+i*256*16+k*16);
else
#endif
for (j=2; j<=0x80; j*=2)
for (k=1; k<j; k++)
Xor16(table+i*256*16+(j+k)*16, table+i*256*16+j*16, table+i*256*16+k*16);
}
}
else
{
if (!s_reductionTableInitialized)
{
s_reductionTable[0] = 0;
word16 x = 0x01c2;
s_reductionTable[1] = ByteReverse(x);
for (int i=2; i<=0x80; i*=2)
{
x <<= 1;
s_reductionTable[i] = ByteReverse(x);
for (int j=1; j<i; j++)
s_reductionTable[i+j] = s_reductionTable[i] ^ s_reductionTable[j];
}
s_reductionTableInitialized = true;
}
for (i=0; i<128-24; i++)
{
k = i%32;
if (k < 4)
Block::Put(NULL, table+1024+(i/32)*256+(size_t(1)<<(7-k)))(V0)(V1);
else if (k < 8)
Block::Put(NULL, table+(i/32)*256+(size_t(1)<<(11-k)))(V0)(V1);
int x = (int)V1 & 1;
V1 = (V1>>1) | (V0<<63);
V0 = (V0>>1) ^ (x ? W64LIT(0xe1) << 56 : 0);
}
for (i=0; i<4; i++)
{
memset(table+i*256, 0, 16);
memset(table+1024+i*256, 0, 16);
#if CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE || CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE
if (HasSSE2())
for (j=2; j<=8; j*=2)
for (k=1; k<j; k++)
{
SSE2_Xor16(table+i*256+(j+k)*16, table+i*256+j*16, table+i*256+k*16);
SSE2_Xor16(table+1024+i*256+(j+k)*16, table+1024+i*256+j*16, table+1024+i*256+k*16);
}
else
#endif
for (j=2; j<=8; j*=2)
for (k=1; k<j; k++)
{
Xor16(table+i*256+(j+k)*16, table+i*256+j*16, table+i*256+k*16);
Xor16(table+1024+i*256+(j+k)*16, table+1024+i*256+j*16, table+1024+i*256+k*16);
}
}
}
}
inline void GCM_Base::ReverseHashBufferIfNeeded()
{
#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE
if (HasCLMUL())
{
__m128i &x = *(__m128i *)HashBuffer();
x = _mm_shuffle_epi8(x, s_clmulConstants[1]);
}
#endif
}
void GCM_Base::Resync(const byte *iv, size_t len)
{
BlockCipher &cipher = AccessBlockCipher();
byte *hashBuffer = HashBuffer();
if (len == 12)
{
memcpy(hashBuffer, iv, len);
memset(hashBuffer+len, 0, 3);
hashBuffer[len+3] = 1;
}
else
{
size_t origLen = len;
memset(hashBuffer, 0, HASH_BLOCKSIZE);
if (len >= HASH_BLOCKSIZE)
{
len = GCM_Base::AuthenticateBlocks(iv, len);
iv += (origLen - len);
}
if (len > 0)
{
memcpy(m_buffer, iv, len);
memset(m_buffer+len, 0, HASH_BLOCKSIZE-len);
GCM_Base::AuthenticateBlocks(m_buffer, HASH_BLOCKSIZE);
}
PutBlock<word64, BigEndian, true>(NULL, m_buffer)(0)(origLen*8);
GCM_Base::AuthenticateBlocks(m_buffer, HASH_BLOCKSIZE);
ReverseHashBufferIfNeeded();
}
if (m_state >= State_IVSet)
m_ctr.Resynchronize(hashBuffer, REQUIRED_BLOCKSIZE);
else
m_ctr.SetCipherWithIV(cipher, hashBuffer);
m_ctr.Seek(HASH_BLOCKSIZE);
memset(hashBuffer, 0, HASH_BLOCKSIZE);
}
unsigned int GCM_Base::OptimalDataAlignment() const
{
return
#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE || defined(CRYPTOPP_X64_MASM_AVAILABLE)
HasSSE2() ? 16 :
#endif
GetBlockCipher().OptimalDataAlignment();
}
#pragma warning(disable: 4731) // frame pointer register 'ebp' modified by inline assembly code
#endif // #ifndef CRYPTOPP_GENERATE_X64_MASM
#ifdef CRYPTOPP_X64_MASM_AVAILABLE
extern "C" {
void GCM_AuthenticateBlocks_2K(const byte *data, size_t blocks, word64 *hashBuffer, const word16 *reductionTable);
void GCM_AuthenticateBlocks_64K(const byte *data, size_t blocks, word64 *hashBuffer);
}
#endif
#ifndef CRYPTOPP_GENERATE_X64_MASM
size_t GCM_Base::AuthenticateBlocks(const byte *data, size_t len)
{
#if CRYPTOPP_BOOL_AESNI_INTRINSICS_AVAILABLE
if (HasCLMUL())
{
const __m128i *table = (const __m128i *)MulTable();
__m128i x = _mm_load_si128((__m128i *)HashBuffer());
const __m128i r = s_clmulConstants[0], bswapMask = s_clmulConstants[1], bswapMask2 = s_clmulConstants[2];
while (len >= 16)
{
size_t s = UnsignedMin(len/16, s_clmulTableSizeInBlocks), i=0;
__m128i d, d2 = _mm_shuffle_epi8(_mm_loadu_si128((const __m128i *)(data+(s-1)*16)), bswapMask2);;
__m128i c0 = _mm_setzero_si128();
__m128i c1 = _mm_setzero_si128();
__m128i c2 = _mm_setzero_si128();
while (true)
{
__m128i h0 = _mm_load_si128(table+i);
__m128i h1 = _mm_load_si128(table+i+1);
__m128i h01 = _mm_xor_si128(h0, h1);
if (++i == s)
{
d = _mm_shuffle_epi8(_mm_loadu_si128((const __m128i *)data), bswapMask);
d = _mm_xor_si128(d, x);
c0 = _mm_xor_si128(c0, _mm_clmulepi64_si128(d, h0, 0));
c2 = _mm_xor_si128(c2, _mm_clmulepi64_si128(d, h1, 1));
d = _mm_xor_si128(d, _mm_shuffle_epi32(d, _MM_SHUFFLE(1, 0, 3, 2)));
c1 = _mm_xor_si128(c1, _mm_clmulepi64_si128(d, h01, 0));
break;
}
d = _mm_shuffle_epi8(_mm_loadu_si128((const __m128i *)(data+(s-i)*16-8)), bswapMask2);
c0 = _mm_xor_si128(c0, _mm_clmulepi64_si128(d2, h0, 1));
c2 = _mm_xor_si128(c2, _mm_clmulepi64_si128(d, h1, 1));
d2 = _mm_xor_si128(d2, d);
c1 = _mm_xor_si128(c1, _mm_clmulepi64_si128(d2, h01, 1));
if (++i == s)
{
d = _mm_shuffle_epi8(_mm_loadu_si128((const __m128i *)data), bswapMask);
d = _mm_xor_si128(d, x);
c0 = _mm_xor_si128(c0, _mm_clmulepi64_si128(d, h0, 0x10));
c2 = _mm_xor_si128(c2, _mm_clmulepi64_si128(d, h1, 0x11));
d = _mm_xor_si128(d, _mm_shuffle_epi32(d, _MM_SHUFFLE(1, 0, 3, 2)));
c1 = _mm_xor_si128(c1, _mm_clmulepi64_si128(d, h01, 0x10));
break;
}
d2 = _mm_shuffle_epi8(_mm_loadu_si128((const __m128i *)(data+(s-i)*16-8)), bswapMask);
c0 = _mm_xor_si128(c0, _mm_clmulepi64_si128(d, h0, 0x10));
c2 = _mm_xor_si128(c2, _mm_clmulepi64_si128(d2, h1, 0x10));
d = _mm_xor_si128(d, d2);
c1 = _mm_xor_si128(c1, _mm_clmulepi64_si128(d, h01, 0x10));
}
data += s*16;
len -= s*16;
c1 = _mm_xor_si128(_mm_xor_si128(c1, c0), c2);
x = CLMUL_Reduce(c0, c1, c2, r);
}
_mm_store_si128((__m128i *)HashBuffer(), x);
return len;
}
#endif
typedef BlockGetAndPut<word64, NativeByteOrder> Block;
word64 *hashBuffer = (word64 *)HashBuffer();
switch (2*(m_buffer.size()>=64*1024)
#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE || defined(CRYPTOPP_X64_MASM_AVAILABLE)
+ HasSSE2()
#endif
)
{
case 0: // non-SSE2 and 2K tables
{
byte *table = MulTable();
word64 x0 = hashBuffer[0], x1 = hashBuffer[1];
do
{
word64 y0, y1, a0, a1, b0, b1, c0, c1, d0, d1;
Block::Get(data)(y0)(y1);
x0 ^= y0;
x1 ^= y1;
data += HASH_BLOCKSIZE;
len -= HASH_BLOCKSIZE;
#define READ_TABLE_WORD64_COMMON(a, b, c, d) *(word64 *)(table+(a*1024)+(b*256)+c+d*8)
#ifdef IS_LITTLE_ENDIAN
#if CRYPTOPP_BOOL_SLOW_WORD64
word32 z0 = (word32)x0;
word32 z1 = (word32)(x0>>32);
word32 z2 = (word32)x1;
word32 z3 = (word32)(x1>>32);
#define READ_TABLE_WORD64(a, b, c, d, e) READ_TABLE_WORD64_COMMON((d%2), c, (d?(z##c>>((d?d-1:0)*4))&0xf0:(z##c&0xf)<<4), e)
#else
#define READ_TABLE_WORD64(a, b, c, d, e) READ_TABLE_WORD64_COMMON((d%2), c, ((d+8*b)?(x##a>>(((d+8*b)?(d+8*b)-1:1)*4))&0xf0:(x##a&0xf)<<4), e)
#endif
#define GF_MOST_SIG_8BITS(a) (a##1 >> 7*8)
#define GF_SHIFT_8(a) a##1 = (a##1 << 8) ^ (a##0 >> 7*8); a##0 <<= 8;
#else
#define READ_TABLE_WORD64(a, b, c, d, e) READ_TABLE_WORD64_COMMON((1-d%2), c, ((15-d-8*b)?(x##a>>(((15-d-8*b)?(15-d-8*b)-1:0)*4))&0xf0:(x##a&0xf)<<4), e)
#define GF_MOST_SIG_8BITS(a) (a##1 & 0xff)
#define GF_SHIFT_8(a) a##1 = (a##1 >> 8) ^ (a##0 << 7*8); a##0 >>= 8;
#endif
#define GF_MUL_32BY128(op, a, b, c) \
a0 op READ_TABLE_WORD64(a, b, c, 0, 0) ^ READ_TABLE_WORD64(a, b, c, 1, 0);\
a1 op READ_TABLE_WORD64(a, b, c, 0, 1) ^ READ_TABLE_WORD64(a, b, c, 1, 1);\
b0 op READ_TABLE_WORD64(a, b, c, 2, 0) ^ READ_TABLE_WORD64(a, b, c, 3, 0);\
b1 op READ_TABLE_WORD64(a, b, c, 2, 1) ^ READ_TABLE_WORD64(a, b, c, 3, 1);\
c0 op READ_TABLE_WORD64(a, b, c, 4, 0) ^ READ_TABLE_WORD64(a, b, c, 5, 0);\
c1 op READ_TABLE_WORD64(a, b, c, 4, 1) ^ READ_TABLE_WORD64(a, b, c, 5, 1);\
d0 op READ_TABLE_WORD64(a, b, c, 6, 0) ^ READ_TABLE_WORD64(a, b, c, 7, 0);\
d1 op READ_TABLE_WORD64(a, b, c, 6, 1) ^ READ_TABLE_WORD64(a, b, c, 7, 1);\
GF_MUL_32BY128(=, 0, 0, 0)
GF_MUL_32BY128(^=, 0, 1, 1)
GF_MUL_32BY128(^=, 1, 0, 2)
GF_MUL_32BY128(^=, 1, 1, 3)
word32 r = (word32)s_reductionTable[GF_MOST_SIG_8BITS(d)] << 16;
GF_SHIFT_8(d)
c0 ^= d0; c1 ^= d1;
r ^= (word32)s_reductionTable[GF_MOST_SIG_8BITS(c)] << 8;
GF_SHIFT_8(c)
b0 ^= c0; b1 ^= c1;
r ^= s_reductionTable[GF_MOST_SIG_8BITS(b)];
GF_SHIFT_8(b)
a0 ^= b0; a1 ^= b1;
a0 ^= ConditionalByteReverse<word64>(LITTLE_ENDIAN_ORDER, r);
x0 = a0; x1 = a1;
}
while (len >= HASH_BLOCKSIZE);
hashBuffer[0] = x0; hashBuffer[1] = x1;
return len;
}
case 2: // non-SSE2 and 64K tables
{
byte *table = MulTable();
word64 x0 = hashBuffer[0], x1 = hashBuffer[1];
do
{
word64 y0, y1, a0, a1;
Block::Get(data)(y0)(y1);
x0 ^= y0;
x1 ^= y1;
data += HASH_BLOCKSIZE;
len -= HASH_BLOCKSIZE;
#undef READ_TABLE_WORD64_COMMON
#undef READ_TABLE_WORD64
#define READ_TABLE_WORD64_COMMON(a, c, d) *(word64 *)(table+(a)*256*16+(c)+(d)*8)
#ifdef IS_LITTLE_ENDIAN
#if CRYPTOPP_BOOL_SLOW_WORD64
word32 z0 = (word32)x0;
word32 z1 = (word32)(x0>>32);
word32 z2 = (word32)x1;
word32 z3 = (word32)(x1>>32);
#define READ_TABLE_WORD64(b, c, d, e) READ_TABLE_WORD64_COMMON(c*4+d, (d?(z##c>>((d?d:1)*8-4))&0xff0:(z##c&0xff)<<4), e)
#else
#define READ_TABLE_WORD64(b, c, d, e) READ_TABLE_WORD64_COMMON(c*4+d, ((d+4*(c%2))?(x##b>>(((d+4*(c%2))?(d+4*(c%2)):1)*8-4))&0xff0:(x##b&0xff)<<4), e)
#endif
#else
#define READ_TABLE_WORD64(b, c, d, e) READ_TABLE_WORD64_COMMON(c*4+d, ((7-d-4*(c%2))?(x##b>>(((7-d-4*(c%2))?(7-d-4*(c%2)):1)*8-4))&0xff0:(x##b&0xff)<<4), e)
#endif
#define GF_MUL_8BY128(op, b, c, d) \
a0 op READ_TABLE_WORD64(b, c, d, 0);\
a1 op READ_TABLE_WORD64(b, c, d, 1);\
GF_MUL_8BY128(=, 0, 0, 0)
GF_MUL_8BY128(^=, 0, 0, 1)
GF_MUL_8BY128(^=, 0, 0, 2)
GF_MUL_8BY128(^=, 0, 0, 3)
GF_MUL_8BY128(^=, 0, 1, 0)
GF_MUL_8BY128(^=, 0, 1, 1)
GF_MUL_8BY128(^=, 0, 1, 2)
GF_MUL_8BY128(^=, 0, 1, 3)
GF_MUL_8BY128(^=, 1, 2, 0)
GF_MUL_8BY128(^=, 1, 2, 1)
GF_MUL_8BY128(^=, 1, 2, 2)
GF_MUL_8BY128(^=, 1, 2, 3)
GF_MUL_8BY128(^=, 1, 3, 0)
GF_MUL_8BY128(^=, 1, 3, 1)
GF_MUL_8BY128(^=, 1, 3, 2)
GF_MUL_8BY128(^=, 1, 3, 3)
x0 = a0; x1 = a1;
}
while (len >= HASH_BLOCKSIZE);
hashBuffer[0] = x0; hashBuffer[1] = x1;
return len;
}
#endif // #ifndef CRYPTOPP_GENERATE_X64_MASM
#ifdef CRYPTOPP_X64_MASM_AVAILABLE
case 1: // SSE2 and 2K tables
GCM_AuthenticateBlocks_2K(data, len/16, hashBuffer, s_reductionTable);
return len % 16;
case 3: // SSE2 and 64K tables
GCM_AuthenticateBlocks_64K(data, len/16, hashBuffer);
return len % 16;
#endif
#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE
case 1: // SSE2 and 2K tables
{
#ifdef __GNUC__
__asm__ __volatile__
(
".intel_syntax noprefix;"
#elif defined(CRYPTOPP_GENERATE_X64_MASM)
ALIGN 8
GCM_AuthenticateBlocks_2K PROC FRAME
rex_push_reg rsi
push_reg rdi
push_reg rbx
.endprolog
mov rsi, r8
mov r11, r9
#else
AS2( mov WORD_REG(cx), data )
AS2( mov WORD_REG(dx), len )
AS2( mov WORD_REG(si), hashBuffer )
AS2( shr WORD_REG(dx), 4 )
#endif
AS_PUSH_IF86( bx)
AS_PUSH_IF86( bp)
#ifdef __GNUC__
AS2( mov AS_REG_7, WORD_REG(di))
#elif CRYPTOPP_BOOL_X86
AS2( lea AS_REG_7, s_reductionTable)
#endif
AS2( movdqa xmm0, [WORD_REG(si)] )
#define MUL_TABLE_0 WORD_REG(si) + 32
#define MUL_TABLE_1 WORD_REG(si) + 32 + 1024
#define RED_TABLE AS_REG_7
ASL(0)
AS2( movdqu xmm4, [WORD_REG(cx)] )
AS2( pxor xmm0, xmm4 )
AS2( movd ebx, xmm0 )
AS2( mov eax, AS_HEX(f0f0f0f0) )
AS2( and eax, ebx )
AS2( shl ebx, 4 )
AS2( and ebx, AS_HEX(f0f0f0f0) )
AS2( movzx edi, ah )
AS2( movdqa xmm5, XMMWORD_PTR [MUL_TABLE_1 + WORD_REG(di)] )
AS2( movzx edi, al )
AS2( movdqa xmm4, XMMWORD_PTR [MUL_TABLE_1 + WORD_REG(di)] )
AS2( shr eax, 16 )
AS2( movzx edi, ah )
AS2( movdqa xmm3, XMMWORD_PTR [MUL_TABLE_1 + WORD_REG(di)] )
AS2( movzx edi, al )
AS2( movdqa xmm2, XMMWORD_PTR [MUL_TABLE_1 + WORD_REG(di)] )
#define SSE2_MUL_32BITS(i) \
AS2( psrldq xmm0, 4 )\
AS2( movd eax, xmm0 )\
AS2( and eax, AS_HEX(f0f0f0f0) )\
AS2( movzx edi, bh )\
AS2( pxor xmm5, XMMWORD_PTR [MUL_TABLE_0 + (i-1)*256 + WORD_REG(di)] )\
AS2( movzx edi, bl )\
AS2( pxor xmm4, XMMWORD_PTR [MUL_TABLE_0 + (i-1)*256 + WORD_REG(di)] )\
AS2( shr ebx, 16 )\
AS2( movzx edi, bh )\
AS2( pxor xmm3, XMMWORD_PTR [MUL_TABLE_0 + (i-1)*256 + WORD_REG(di)] )\
AS2( movzx edi, bl )\
AS2( pxor xmm2, XMMWORD_PTR [MUL_TABLE_0 + (i-1)*256 + WORD_REG(di)] )\
AS2( movd ebx, xmm0 )\
AS2( shl ebx, 4 )\
AS2( and ebx, AS_HEX(f0f0f0f0) )\
AS2( movzx edi, ah )\
AS2( pxor xmm5, XMMWORD_PTR [MUL_TABLE_1 + i*256 + WORD_REG(di)] )\
AS2( movzx edi, al )\
AS2( pxor xmm4, XMMWORD_PTR [MUL_TABLE_1 + i*256 + WORD_REG(di)] )\
AS2( shr eax, 16 )\
AS2( movzx edi, ah )\
AS2( pxor xmm3, XMMWORD_PTR [MUL_TABLE_1 + i*256 + WORD_REG(di)] )\
AS2( movzx edi, al )\
AS2( pxor xmm2, XMMWORD_PTR [MUL_TABLE_1 + i*256 + WORD_REG(di)] )\
SSE2_MUL_32BITS(1)
SSE2_MUL_32BITS(2)
SSE2_MUL_32BITS(3)
AS2( movzx edi, bh )
AS2( pxor xmm5, XMMWORD_PTR [MUL_TABLE_0 + 3*256 + WORD_REG(di)] )
AS2( movzx edi, bl )
AS2( pxor xmm4, XMMWORD_PTR [MUL_TABLE_0 + 3*256 + WORD_REG(di)] )
AS2( shr ebx, 16 )
AS2( movzx edi, bh )
AS2( pxor xmm3, XMMWORD_PTR [MUL_TABLE_0 + 3*256 + WORD_REG(di)] )
AS2( movzx edi, bl )
AS2( pxor xmm2, XMMWORD_PTR [MUL_TABLE_0 + 3*256 + WORD_REG(di)] )
AS2( movdqa xmm0, xmm3 )
AS2( pslldq xmm3, 1 )
AS2( pxor xmm2, xmm3 )
AS2( movdqa xmm1, xmm2 )
AS2( pslldq xmm2, 1 )
AS2( pxor xmm5, xmm2 )
AS2( psrldq xmm0, 15 )
AS2( movd WORD_REG(di), xmm0 )
AS2( movzx eax, WORD PTR [RED_TABLE + WORD_REG(di)*2] )
AS2( shl eax, 8 )
AS2( movdqa xmm0, xmm5 )
AS2( pslldq xmm5, 1 )
AS2( pxor xmm4, xmm5 )
AS2( psrldq xmm1, 15 )
AS2( movd WORD_REG(di), xmm1 )
AS2( xor ax, WORD PTR [RED_TABLE + WORD_REG(di)*2] )
AS2( shl eax, 8 )
AS2( psrldq xmm0, 15 )
AS2( movd WORD_REG(di), xmm0 )
AS2( xor ax, WORD PTR [RED_TABLE + WORD_REG(di)*2] )
AS2( movd xmm0, eax )
AS2( pxor xmm0, xmm4 )
AS2( add WORD_REG(cx), 16 )
AS2( sub WORD_REG(dx), 1 )
ASJ( jnz, 0, b )
AS2( movdqa [WORD_REG(si)], xmm0 )
AS_POP_IF86( bp)
AS_POP_IF86( bx)
#ifdef __GNUC__
".att_syntax prefix;"
:
: "c" (data), "d" (len/16), "S" (hashBuffer), "D" (s_reductionTable)
: "memory", "cc", "%eax"
#if CRYPTOPP_BOOL_X64
, "%ebx", "%r11"
#endif
);
#elif defined(CRYPTOPP_GENERATE_X64_MASM)
pop rbx
pop rdi
pop rsi
ret
GCM_AuthenticateBlocks_2K ENDP
#endif
return len%16;
}
case 3: // SSE2 and 64K tables
{
#ifdef __GNUC__
__asm__ __volatile__
(
".intel_syntax noprefix;"
#elif defined(CRYPTOPP_GENERATE_X64_MASM)
ALIGN 8
GCM_AuthenticateBlocks_64K PROC FRAME
rex_push_reg rsi
push_reg rdi
.endprolog
mov rsi, r8
#else
AS2( mov WORD_REG(cx), data )
AS2( mov WORD_REG(dx), len )
AS2( mov WORD_REG(si), hashBuffer )
AS2( shr WORD_REG(dx), 4 )
#endif
AS2( movdqa xmm0, [WORD_REG(si)] )
#undef MUL_TABLE
#define MUL_TABLE(i,j) WORD_REG(si) + 32 + (i*4+j)*256*16
ASL(1)
AS2( movdqu xmm1, [WORD_REG(cx)] )
AS2( pxor xmm1, xmm0 )
AS2( pxor xmm0, xmm0 )
#undef SSE2_MUL_32BITS
#define SSE2_MUL_32BITS(i) \
AS2( movd eax, xmm1 )\
AS2( psrldq xmm1, 4 )\
AS2( movzx edi, al )\
AS2( add WORD_REG(di), WORD_REG(di) )\
AS2( pxor xmm0, [MUL_TABLE(i,0) + WORD_REG(di)*8] )\
AS2( movzx edi, ah )\
AS2( add WORD_REG(di), WORD_REG(di) )\
AS2( pxor xmm0, [MUL_TABLE(i,1) + WORD_REG(di)*8] )\
AS2( shr eax, 16 )\
AS2( movzx edi, al )\
AS2( add WORD_REG(di), WORD_REG(di) )\
AS2( pxor xmm0, [MUL_TABLE(i,2) + WORD_REG(di)*8] )\
AS2( movzx edi, ah )\
AS2( add WORD_REG(di), WORD_REG(di) )\
AS2( pxor xmm0, [MUL_TABLE(i,3) + WORD_REG(di)*8] )\
SSE2_MUL_32BITS(0)
SSE2_MUL_32BITS(1)
SSE2_MUL_32BITS(2)
SSE2_MUL_32BITS(3)
AS2( add WORD_REG(cx), 16 )
AS2( sub WORD_REG(dx), 1 )
ASJ( jnz, 1, b )
AS2( movdqa [WORD_REG(si)], xmm0 )
#ifdef __GNUC__
".att_syntax prefix;"
:
: "c" (data), "d" (len/16), "S" (hashBuffer)
: "memory", "cc", "%edi", "%eax"
);
#elif defined(CRYPTOPP_GENERATE_X64_MASM)
pop rdi
pop rsi
ret
GCM_AuthenticateBlocks_64K ENDP
#endif
return len%16;
}
#endif
#ifndef CRYPTOPP_GENERATE_X64_MASM
}
return len%16;
}
void GCM_Base::AuthenticateLastHeaderBlock()
{
if (m_bufferedDataLength > 0)
{
memset(m_buffer+m_bufferedDataLength, 0, HASH_BLOCKSIZE-m_bufferedDataLength);
m_bufferedDataLength = 0;
GCM_Base::AuthenticateBlocks(m_buffer, HASH_BLOCKSIZE);
}
}
void GCM_Base::AuthenticateLastConfidentialBlock()
{
GCM_Base::AuthenticateLastHeaderBlock();
PutBlock<word64, BigEndian, true>(NULL, m_buffer)(m_totalHeaderLength*8)(m_totalMessageLength*8);
GCM_Base::AuthenticateBlocks(m_buffer, HASH_BLOCKSIZE);
}
void GCM_Base::AuthenticateLastFooterBlock(byte *mac, size_t macSize)
{
m_ctr.Seek(0);
ReverseHashBufferIfNeeded();
m_ctr.ProcessData(mac, HashBuffer(), macSize);
}
NAMESPACE_END
#endif // #ifndef CRYPTOPP_GENERATE_X64_MASM
#endif

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lib/cryptopp/gcm.h
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#ifndef CRYPTOPP_GCM_H
#define CRYPTOPP_GCM_H
#include "authenc.h"
#include "modes.h"
NAMESPACE_BEGIN(CryptoPP)
//! .
enum GCM_TablesOption {GCM_2K_Tables, GCM_64K_Tables};
//! .
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE GCM_Base : public AuthenticatedSymmetricCipherBase
{
public:
// AuthenticatedSymmetricCipher
std::string AlgorithmName() const
{return GetBlockCipher().AlgorithmName() + std::string("/GCM");}
size_t MinKeyLength() const
{return GetBlockCipher().MinKeyLength();}
size_t MaxKeyLength() const
{return GetBlockCipher().MaxKeyLength();}
size_t DefaultKeyLength() const
{return GetBlockCipher().DefaultKeyLength();}
size_t GetValidKeyLength(size_t n) const
{return GetBlockCipher().GetValidKeyLength(n);}
bool IsValidKeyLength(size_t n) const
{return GetBlockCipher().IsValidKeyLength(n);}
unsigned int OptimalDataAlignment() const;
IV_Requirement IVRequirement() const
{return UNIQUE_IV;}
unsigned int IVSize() const
{return 12;}
unsigned int MinIVLength() const
{return 1;}
unsigned int MaxIVLength() const
{return UINT_MAX;} // (W64LIT(1)<<61)-1 in the standard
unsigned int DigestSize() const
{return 16;}
lword MaxHeaderLength() const
{return (W64LIT(1)<<61)-1;}
lword MaxMessageLength() const
{return ((W64LIT(1)<<39)-256)/8;}
protected:
// AuthenticatedSymmetricCipherBase
bool AuthenticationIsOnPlaintext() const
{return false;}
unsigned int AuthenticationBlockSize() const
{return HASH_BLOCKSIZE;}
void SetKeyWithoutResync(const byte *userKey, size_t keylength, const NameValuePairs &params);
void Resync(const byte *iv, size_t len);
size_t AuthenticateBlocks(const byte *data, size_t len);
void AuthenticateLastHeaderBlock();
void AuthenticateLastConfidentialBlock();
void AuthenticateLastFooterBlock(byte *mac, size_t macSize);
SymmetricCipher & AccessSymmetricCipher() {return m_ctr;}
virtual BlockCipher & AccessBlockCipher() =0;
virtual GCM_TablesOption GetTablesOption() const =0;
const BlockCipher & GetBlockCipher() const {return const_cast<GCM_Base *>(this)->AccessBlockCipher();};
byte *HashBuffer() {return m_buffer+REQUIRED_BLOCKSIZE;}
byte *HashKey() {return m_buffer+2*REQUIRED_BLOCKSIZE;}
byte *MulTable() {return m_buffer+3*REQUIRED_BLOCKSIZE;}
inline void ReverseHashBufferIfNeeded();
class CRYPTOPP_DLL GCTR : public CTR_Mode_ExternalCipher::Encryption
{
protected:
void IncrementCounterBy256();
};
GCTR m_ctr;
static word16 s_reductionTable[256];
static volatile bool s_reductionTableInitialized;
enum {REQUIRED_BLOCKSIZE = 16, HASH_BLOCKSIZE = 16};
};
//! .
template <class T_BlockCipher, GCM_TablesOption T_TablesOption, bool T_IsEncryption>
class GCM_Final : public GCM_Base
{
public:
static std::string StaticAlgorithmName()
{return T_BlockCipher::StaticAlgorithmName() + std::string("/GCM");}
bool IsForwardTransformation() const
{return T_IsEncryption;}
private:
GCM_TablesOption GetTablesOption() const {return T_TablesOption;}
BlockCipher & AccessBlockCipher() {return m_cipher;}
typename T_BlockCipher::Encryption m_cipher;
};
//! <a href="http://www.cryptolounge.org/wiki/GCM">GCM</a>
template <class T_BlockCipher, GCM_TablesOption T_TablesOption=GCM_2K_Tables>
struct GCM : public AuthenticatedSymmetricCipherDocumentation
{
typedef GCM_Final<T_BlockCipher, T_TablesOption, true> Encryption;
typedef GCM_Final<T_BlockCipher, T_TablesOption, false> Decryption;
};
NAMESPACE_END
#endif

34
lib/cryptopp/gf256.cpp
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// gf256.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#include "gf256.h"
NAMESPACE_BEGIN(CryptoPP)
GF256::Element GF256::Multiply(Element a, Element b) const
{
word result = 0, t = b;
for (unsigned int i=0; i<8; i++)
{
result <<= 1;
if (result & 0x100)
result ^= m_modulus;
t <<= 1;
if (t & 0x100)
result ^= a;
}
return (GF256::Element) result;
}
GF256::Element GF256::MultiplicativeInverse(Element a) const
{
Element result = a;
for (int i=1; i<7; i++)
result = Multiply(Square(result), a);
return Square(result);
}
NAMESPACE_END

66
lib/cryptopp/gf256.h
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#ifndef CRYPTOPP_GF256_H
#define CRYPTOPP_GF256_H
#include "cryptlib.h"
NAMESPACE_BEGIN(CryptoPP)
//! GF(256) with polynomial basis
class GF256
{
public:
typedef byte Element;
typedef int RandomizationParameter;
GF256(byte modulus) : m_modulus(modulus) {}
Element RandomElement(RandomNumberGenerator &rng, int ignored = 0) const
{return rng.GenerateByte();}
bool Equal(Element a, Element b) const
{return a==b;}
Element Zero() const
{return 0;}
Element Add(Element a, Element b) const
{return a^b;}
Element& Accumulate(Element &a, Element b) const
{return a^=b;}
Element Inverse(Element a) const
{return a;}
Element Subtract(Element a, Element b) const
{return a^b;}
Element& Reduce(Element &a, Element b) const
{return a^=b;}
Element Double(Element a) const
{return 0;}
Element One() const
{return 1;}
Element Multiply(Element a, Element b) const;
Element Square(Element a) const
{return Multiply(a, a);}
bool IsUnit(Element a) const
{return a != 0;}
Element MultiplicativeInverse(Element a) const;
Element Divide(Element a, Element b) const
{return Multiply(a, MultiplicativeInverse(b));}
private:
word m_modulus;
};
NAMESPACE_END
#endif

99
lib/cryptopp/gf2_32.cpp
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// gf2_32.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#include "misc.h"
#include "gf2_32.h"
NAMESPACE_BEGIN(CryptoPP)
GF2_32::Element GF2_32::Multiply(Element a, Element b) const
{
word32 table[4];
table[0] = 0;
table[1] = m_modulus;
if (a & 0x80000000)
{
table[2] = m_modulus ^ (a<<1);
table[3] = a<<1;
}
else
{
table[2] = a<<1;
table[3] = m_modulus ^ (a<<1);
}
#if CRYPTOPP_FAST_ROTATE(32)
b = rotrFixed(b, 30U);
word32 result = table[b&2];
for (int i=29; i>=0; --i)
{
b = rotlFixed(b, 1U);
result = (result<<1) ^ table[(b&2) + (result>>31)];
}
return (b&1) ? result ^ a : result;
#else
word32 result = table[(b>>30) & 2];
for (int i=29; i>=0; --i)
result = (result<<1) ^ table[((b>>i)&2) + (result>>31)];
return (b&1) ? result ^ a : result;
#endif
}
GF2_32::Element GF2_32::MultiplicativeInverse(Element a) const
{
if (a <= 1) // 1 is a special case
return a;
// warning - don't try to adapt this algorithm for another situation
word32 g0=m_modulus, g1=a, g2=a;
word32 v0=0, v1=1, v2=1;
assert(g1);
while (!(g2 & 0x80000000))
{
g2 <<= 1;
v2 <<= 1;
}
g2 <<= 1;
v2 <<= 1;
g0 ^= g2;
v0 ^= v2;
while (g0 != 1)
{
if (g1 < g0 || ((g0^g1) < g0 && (g0^g1) < g1))
{
assert(BitPrecision(g1) <= BitPrecision(g0));
g2 = g1;
v2 = v1;
}
else
{
assert(BitPrecision(g1) > BitPrecision(g0));
g2 = g0; g0 = g1; g1 = g2;
v2 = v0; v0 = v1; v1 = v2;
}
while ((g0^g2) >= g2)
{
assert(BitPrecision(g0) > BitPrecision(g2));
g2 <<= 1;
v2 <<= 1;
}
assert(BitPrecision(g0) == BitPrecision(g2));
g0 ^= g2;
v0 ^= v2;
}
return v0;
}
NAMESPACE_END

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lib/cryptopp/gf2_32.h
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#ifndef CRYPTOPP_GF2_32_H
#define CRYPTOPP_GF2_32_H
#include "cryptlib.h"
NAMESPACE_BEGIN(CryptoPP)
//! GF(2^32) with polynomial basis
class GF2_32
{
public:
typedef word32 Element;
typedef int RandomizationParameter;
GF2_32(word32 modulus=0x0000008D) : m_modulus(modulus) {}
Element RandomElement(RandomNumberGenerator &rng, int ignored = 0) const
{return rng.GenerateWord32();}
bool Equal(Element a, Element b) const
{return a==b;}
Element Identity() const
{return 0;}
Element Add(Element a, Element b) const
{return a^b;}
Element& Accumulate(Element &a, Element b) const
{return a^=b;}
Element Inverse(Element a) const
{return a;}
Element Subtract(Element a, Element b) const
{return a^b;}
Element& Reduce(Element &a, Element b) const
{return a^=b;}
Element Double(Element a) const
{return 0;}
Element MultiplicativeIdentity() const
{return 1;}
Element Multiply(Element a, Element b) const;
Element Square(Element a) const
{return Multiply(a, a);}
bool IsUnit(Element a) const
{return a != 0;}
Element MultiplicativeInverse(Element a) const;
Element Divide(Element a, Element b) const
{return Multiply(a, MultiplicativeInverse(b));}
private:
word32 m_modulus;
};
NAMESPACE_END
#endif

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lib/cryptopp/gf2n.cpp
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// gf2n.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "gf2n.h"
#include "algebra.h"
#include "words.h"
#include "randpool.h"
#include "asn.h"
#include "oids.h"
#include <iostream>
NAMESPACE_BEGIN(CryptoPP)
PolynomialMod2::PolynomialMod2()
{
}
PolynomialMod2::PolynomialMod2(word value, size_t bitLength)
: reg(BitsToWords(bitLength))
{
assert(value==0 || reg.size()>0);
if (reg.size() > 0)
{
reg[0] = value;
SetWords(reg+1, 0, reg.size()-1);
}
}
PolynomialMod2::PolynomialMod2(const PolynomialMod2& t)
: reg(t.reg.size())
{
CopyWords(reg, t.reg, reg.size());
}
void PolynomialMod2::Randomize(RandomNumberGenerator &rng, size_t nbits)
{
const size_t nbytes = nbits/8 + 1;
SecByteBlock buf(nbytes);
rng.GenerateBlock(buf, nbytes);
buf[0] = (byte)Crop(buf[0], nbits % 8);
Decode(buf, nbytes);
}
PolynomialMod2 PolynomialMod2::AllOnes(size_t bitLength)
{
PolynomialMod2 result((word)0, bitLength);
SetWords(result.reg, ~(word)0, result.reg.size());
if (bitLength%WORD_BITS)
result.reg[result.reg.size()-1] = (word)Crop(result.reg[result.reg.size()-1], bitLength%WORD_BITS);
return result;
}
void PolynomialMod2::SetBit(size_t n, int value)
{
if (value)
{
reg.CleanGrow(n/WORD_BITS + 1);
reg[n/WORD_BITS] |= (word(1) << (n%WORD_BITS));
}
else
{
if (n/WORD_BITS < reg.size())
reg[n/WORD_BITS] &= ~(word(1) << (n%WORD_BITS));
}
}
byte PolynomialMod2::GetByte(size_t n) const
{
if (n/WORD_SIZE >= reg.size())
return 0;
else
return byte(reg[n/WORD_SIZE] >> ((n%WORD_SIZE)*8));
}
void PolynomialMod2::SetByte(size_t n, byte value)
{
reg.CleanGrow(BytesToWords(n+1));
reg[n/WORD_SIZE] &= ~(word(0xff) << 8*(n%WORD_SIZE));
reg[n/WORD_SIZE] |= (word(value) << 8*(n%WORD_SIZE));
}
PolynomialMod2 PolynomialMod2::Monomial(size_t i)
{
PolynomialMod2 r((word)0, i+1);
r.SetBit(i);
return r;
}
PolynomialMod2 PolynomialMod2::Trinomial(size_t t0, size_t t1, size_t t2)
{
PolynomialMod2 r((word)0, t0+1);
r.SetBit(t0);
r.SetBit(t1);
r.SetBit(t2);
return r;
}
PolynomialMod2 PolynomialMod2::Pentanomial(size_t t0, size_t t1, size_t t2, size_t t3, size_t t4)
{
PolynomialMod2 r((word)0, t0+1);
r.SetBit(t0);
r.SetBit(t1);
r.SetBit(t2);
r.SetBit(t3);
r.SetBit(t4);
return r;
}
template <word i>
struct NewPolynomialMod2
{
PolynomialMod2 * operator()() const
{
return new PolynomialMod2(i);
}
};
const PolynomialMod2 &PolynomialMod2::Zero()
{
return Singleton<PolynomialMod2>().Ref();
}
const PolynomialMod2 &PolynomialMod2::One()
{
return Singleton<PolynomialMod2, NewPolynomialMod2<1> >().Ref();
}
void PolynomialMod2::Decode(const byte *input, size_t inputLen)
{
StringStore store(input, inputLen);
Decode(store, inputLen);
}
void PolynomialMod2::Encode(byte *output, size_t outputLen) const
{
ArraySink sink(output, outputLen);
Encode(sink, outputLen);
}
void PolynomialMod2::Decode(BufferedTransformation &bt, size_t inputLen)
{
reg.CleanNew(BytesToWords(inputLen));
for (size_t i=inputLen; i > 0; i--)
{
byte b;
bt.Get(b);
reg[(i-1)/WORD_SIZE] |= word(b) << ((i-1)%WORD_SIZE)*8;
}
}
void PolynomialMod2::Encode(BufferedTransformation &bt, size_t outputLen) const
{
for (size_t i=outputLen; i > 0; i--)
bt.Put(GetByte(i-1));
}
void PolynomialMod2::DEREncodeAsOctetString(BufferedTransformation &bt, size_t length) const
{
DERGeneralEncoder enc(bt, OCTET_STRING);
Encode(enc, length);
enc.MessageEnd();
}
void PolynomialMod2::BERDecodeAsOctetString(BufferedTransformation &bt, size_t length)
{
BERGeneralDecoder dec(bt, OCTET_STRING);
if (!dec.IsDefiniteLength() || dec.RemainingLength() != length)
BERDecodeError();
Decode(dec, length);
dec.MessageEnd();
}
unsigned int PolynomialMod2::WordCount() const
{
return (unsigned int)CountWords(reg, reg.size());
}
unsigned int PolynomialMod2::ByteCount() const
{
unsigned wordCount = WordCount();
if (wordCount)
return (wordCount-1)*WORD_SIZE + BytePrecision(reg[wordCount-1]);
else
return 0;
}
unsigned int PolynomialMod2::BitCount() const
{
unsigned wordCount = WordCount();
if (wordCount)
return (wordCount-1)*WORD_BITS + BitPrecision(reg[wordCount-1]);
else
return 0;
}
unsigned int PolynomialMod2::Parity() const
{
unsigned i;
word temp=0;
for (i=0; i<reg.size(); i++)
temp ^= reg[i];
return CryptoPP::Parity(temp);
}
PolynomialMod2& PolynomialMod2::operator=(const PolynomialMod2& t)
{
reg.Assign(t.reg);
return *this;
}
PolynomialMod2& PolynomialMod2::operator^=(const PolynomialMod2& t)
{
reg.CleanGrow(t.reg.size());
XorWords(reg, t.reg, t.reg.size());
return *this;
}
PolynomialMod2 PolynomialMod2::Xor(const PolynomialMod2 &b) const
{
if (b.reg.size() >= reg.size())
{
PolynomialMod2 result((word)0, b.reg.size()*WORD_BITS);
XorWords(result.reg, reg, b.reg, reg.size());
CopyWords(result.reg+reg.size(), b.reg+reg.size(), b.reg.size()-reg.size());
return result;
}
else
{
PolynomialMod2 result((word)0, reg.size()*WORD_BITS);
XorWords(result.reg, reg, b.reg, b.reg.size());
CopyWords(result.reg+b.reg.size(), reg+b.reg.size(), reg.size()-b.reg.size());
return result;
}
}
PolynomialMod2 PolynomialMod2::And(const PolynomialMod2 &b) const
{
PolynomialMod2 result((word)0, WORD_BITS*STDMIN(reg.size(), b.reg.size()));
AndWords(result.reg, reg, b.reg, result.reg.size());
return result;
}
PolynomialMod2 PolynomialMod2::Times(const PolynomialMod2 &b) const
{
PolynomialMod2 result((word)0, BitCount() + b.BitCount());
for (int i=b.Degree(); i>=0; i--)
{
result <<= 1;
if (b[i])
XorWords(result.reg, reg, reg.size());
}
return result;
}
PolynomialMod2 PolynomialMod2::Squared() const
{
static const word map[16] = {0, 1, 4, 5, 16, 17, 20, 21, 64, 65, 68, 69, 80, 81, 84, 85};
PolynomialMod2 result((word)0, 2*reg.size()*WORD_BITS);
for (unsigned i=0; i<reg.size(); i++)
{
unsigned j;
for (j=0; j<WORD_BITS; j+=8)
result.reg[2*i] |= map[(reg[i] >> (j/2)) % 16] << j;
for (j=0; j<WORD_BITS; j+=8)
result.reg[2*i+1] |= map[(reg[i] >> (j/2 + WORD_BITS/2)) % 16] << j;
}
return result;
}
void PolynomialMod2::Divide(PolynomialMod2 &remainder, PolynomialMod2 &quotient,
const PolynomialMod2 &dividend, const PolynomialMod2 &divisor)
{
if (!divisor)
throw PolynomialMod2::DivideByZero();
int degree = divisor.Degree();
remainder.reg.CleanNew(BitsToWords(degree+1));
if (dividend.BitCount() >= divisor.BitCount())
quotient.reg.CleanNew(BitsToWords(dividend.BitCount() - divisor.BitCount() + 1));
else
quotient.reg.CleanNew(0);
for (int i=dividend.Degree(); i>=0; i--)
{
remainder <<= 1;
remainder.reg[0] |= dividend[i];
if (remainder[degree])
{
remainder -= divisor;
quotient.SetBit(i);
}
}
}
PolynomialMod2 PolynomialMod2::DividedBy(const PolynomialMod2 &b) const
{
PolynomialMod2 remainder, quotient;
PolynomialMod2::Divide(remainder, quotient, *this, b);
return quotient;
}
PolynomialMod2 PolynomialMod2::Modulo(const PolynomialMod2 &b) const
{
PolynomialMod2 remainder, quotient;
PolynomialMod2::Divide(remainder, quotient, *this, b);
return remainder;
}
PolynomialMod2& PolynomialMod2::operator<<=(unsigned int n)
{
if (!reg.size())
return *this;
int i;
word u;
word carry=0;
word *r=reg;
if (n==1) // special case code for most frequent case
{
i = (int)reg.size();
while (i--)
{
u = *r;
*r = (u << 1) | carry;
carry = u >> (WORD_BITS-1);
r++;
}
if (carry)
{
reg.Grow(reg.size()+1);
reg[reg.size()-1] = carry;
}
return *this;
}
int shiftWords = n / WORD_BITS;
int shiftBits = n % WORD_BITS;
if (shiftBits)
{
i = (int)reg.size();
while (i--)
{
u = *r;
*r = (u << shiftBits) | carry;
carry = u >> (WORD_BITS-shiftBits);
r++;
}
}
if (carry)
{
reg.Grow(reg.size()+shiftWords+1);
reg[reg.size()-1] = carry;
}
else
reg.Grow(reg.size()+shiftWords);
if (shiftWords)
{
for (i = (int)reg.size()-1; i>=shiftWords; i--)
reg[i] = reg[i-shiftWords];
for (; i>=0; i--)
reg[i] = 0;
}
return *this;
}
PolynomialMod2& PolynomialMod2::operator>>=(unsigned int n)
{
if (!reg.size())
return *this;
int shiftWords = n / WORD_BITS;
int shiftBits = n % WORD_BITS;
size_t i;
word u;
word carry=0;
word *r=reg+reg.size()-1;
if (shiftBits)
{
i = reg.size();
while (i--)
{
u = *r;
*r = (u >> shiftBits) | carry;
carry = u << (WORD_BITS-shiftBits);
r--;
}
}
if (shiftWords)
{
for (i=0; i<reg.size()-shiftWords; i++)
reg[i] = reg[i+shiftWords];
for (; i<reg.size(); i++)
reg[i] = 0;
}
return *this;
}
PolynomialMod2 PolynomialMod2::operator<<(unsigned int n) const
{
PolynomialMod2 result(*this);
return result<<=n;
}
PolynomialMod2 PolynomialMod2::operator>>(unsigned int n) const
{
PolynomialMod2 result(*this);
return result>>=n;
}
bool PolynomialMod2::operator!() const
{
for (unsigned i=0; i<reg.size(); i++)
if (reg[i]) return false;
return true;
}
bool PolynomialMod2::Equals(const PolynomialMod2 &rhs) const
{
size_t i, smallerSize = STDMIN(reg.size(), rhs.reg.size());
for (i=0; i<smallerSize; i++)
if (reg[i] != rhs.reg[i]) return false;
for (i=smallerSize; i<reg.size(); i++)
if (reg[i] != 0) return false;
for (i=smallerSize; i<rhs.reg.size(); i++)
if (rhs.reg[i] != 0) return false;
return true;
}
std::ostream& operator<<(std::ostream& out, const PolynomialMod2 &a)
{
// Get relevant conversion specifications from ostream.
long f = out.flags() & std::ios::basefield; // Get base digits.
int bits, block;
char suffix;
switch(f)
{
case std::ios::oct :
bits = 3;
block = 4;
suffix = 'o';
break;
case std::ios::hex :
bits = 4;
block = 2;
suffix = 'h';
break;
default :
bits = 1;
block = 8;
suffix = 'b';
}
if (!a)
return out << '0' << suffix;
SecBlock<char> s(a.BitCount()/bits+1);
unsigned i;
static const char upper[]="0123456789ABCDEF";
static const char lower[]="0123456789abcdef";
const char* vec = (out.flags() & std::ios::uppercase) ? upper : lower;
for (i=0; i*bits < a.BitCount(); i++)
{
int digit=0;
for (int j=0; j<bits; j++)
digit |= a[i*bits+j] << j;
s[i]=vec[digit];
}
while (i--)
{
out << s[i];
if (i && (i%block)==0)
out << ',';
}
return out << suffix;
}
PolynomialMod2 PolynomialMod2::Gcd(const PolynomialMod2 &a, const PolynomialMod2 &b)
{
return EuclideanDomainOf<PolynomialMod2>().Gcd(a, b);
}
PolynomialMod2 PolynomialMod2::InverseMod(const PolynomialMod2 &modulus) const
{
typedef EuclideanDomainOf<PolynomialMod2> Domain;
return QuotientRing<Domain>(Domain(), modulus).MultiplicativeInverse(*this);
}
bool PolynomialMod2::IsIrreducible() const
{
signed int d = Degree();
if (d <= 0)
return false;
PolynomialMod2 t(2), u(t);
for (int i=1; i<=d/2; i++)
{
u = u.Squared()%(*this);
if (!Gcd(u+t, *this).IsUnit())
return false;
}
return true;
}
// ********************************************************
GF2NP::GF2NP(const PolynomialMod2 &modulus)
: QuotientRing<EuclideanDomainOf<PolynomialMod2> >(EuclideanDomainOf<PolynomialMod2>(), modulus), m(modulus.Degree())
{
}
GF2NP::Element GF2NP::SquareRoot(const Element &a) const
{
Element r = a;
for (unsigned int i=1; i<m; i++)
r = Square(r);
return r;
}
GF2NP::Element GF2NP::HalfTrace(const Element &a) const
{
assert(m%2 == 1);
Element h = a;
for (unsigned int i=1; i<=(m-1)/2; i++)
h = Add(Square(Square(h)), a);
return h;
}
GF2NP::Element GF2NP::SolveQuadraticEquation(const Element &a) const
{
if (m%2 == 0)
{
Element z, w;
RandomPool rng;
do
{
Element p((RandomNumberGenerator &)rng, m);
z = PolynomialMod2::Zero();
w = p;
for (unsigned int i=1; i<=m-1; i++)
{
w = Square(w);
z = Square(z);
Accumulate(z, Multiply(w, a));
Accumulate(w, p);
}
} while (w.IsZero());
return z;
}
else
return HalfTrace(a);
}
// ********************************************************
GF2NT::GF2NT(unsigned int t0, unsigned int t1, unsigned int t2)
: GF2NP(PolynomialMod2::Trinomial(t0, t1, t2))
, t0(t0), t1(t1)
, result((word)0, m)
{
assert(t0 > t1 && t1 > t2 && t2==0);
}
const GF2NT::Element& GF2NT::MultiplicativeInverse(const Element &a) const
{
if (t0-t1 < WORD_BITS)
return GF2NP::MultiplicativeInverse(a);
SecWordBlock T(m_modulus.reg.size() * 4);
word *b = T;
word *c = T+m_modulus.reg.size();
word *f = T+2*m_modulus.reg.size();
word *g = T+3*m_modulus.reg.size();
size_t bcLen=1, fgLen=m_modulus.reg.size();
unsigned int k=0;
SetWords(T, 0, 3*m_modulus.reg.size());
b[0]=1;
assert(a.reg.size() <= m_modulus.reg.size());
CopyWords(f, a.reg, a.reg.size());
CopyWords(g, m_modulus.reg, m_modulus.reg.size());
while (1)
{
word t=f[0];
while (!t)
{
ShiftWordsRightByWords(f, fgLen, 1);
if (c[bcLen-1])
bcLen++;
assert(bcLen <= m_modulus.reg.size());
ShiftWordsLeftByWords(c, bcLen, 1);
k+=WORD_BITS;
t=f[0];
}
unsigned int i=0;
while (t%2 == 0)
{
t>>=1;
i++;
}
k+=i;
if (t==1 && CountWords(f, fgLen)==1)
break;
if (i==1)
{
ShiftWordsRightByBits(f, fgLen, 1);
t=ShiftWordsLeftByBits(c, bcLen, 1);
}
else
{
ShiftWordsRightByBits(f, fgLen, i);
t=ShiftWordsLeftByBits(c, bcLen, i);
}
if (t)
{
c[bcLen] = t;
bcLen++;
assert(bcLen <= m_modulus.reg.size());
}
if (f[fgLen-1]==0 && g[fgLen-1]==0)
fgLen--;
if (f[fgLen-1] < g[fgLen-1])
{
std::swap(f, g);
std::swap(b, c);
}
XorWords(f, g, fgLen);
XorWords(b, c, bcLen);
}
while (k >= WORD_BITS)
{
word temp = b[0];
// right shift b
for (unsigned i=0; i+1<BitsToWords(m); i++)
b[i] = b[i+1];
b[BitsToWords(m)-1] = 0;
if (t1 < WORD_BITS)
for (unsigned int j=0; j<WORD_BITS-t1; j++)
temp ^= ((temp >> j) & 1) << (t1 + j);
else
b[t1/WORD_BITS-1] ^= temp << t1%WORD_BITS;
if (t1 % WORD_BITS)
b[t1/WORD_BITS] ^= temp >> (WORD_BITS - t1%WORD_BITS);
if (t0%WORD_BITS)
{
b[t0/WORD_BITS-1] ^= temp << t0%WORD_BITS;
b[t0/WORD_BITS] ^= temp >> (WORD_BITS - t0%WORD_BITS);
}
else
b[t0/WORD_BITS-1] ^= temp;
k -= WORD_BITS;
}
if (k)
{
word temp = b[0] << (WORD_BITS - k);
ShiftWordsRightByBits(b, BitsToWords(m), k);
if (t1 < WORD_BITS)
for (unsigned int j=0; j<WORD_BITS-t1; j++)
temp ^= ((temp >> j) & 1) << (t1 + j);
else
b[t1/WORD_BITS-1] ^= temp << t1%WORD_BITS;
if (t1 % WORD_BITS)
b[t1/WORD_BITS] ^= temp >> (WORD_BITS - t1%WORD_BITS);
if (t0%WORD_BITS)
{
b[t0/WORD_BITS-1] ^= temp << t0%WORD_BITS;
b[t0/WORD_BITS] ^= temp >> (WORD_BITS - t0%WORD_BITS);
}
else
b[t0/WORD_BITS-1] ^= temp;
}
CopyWords(result.reg.begin(), b, result.reg.size());
return result;
}
const GF2NT::Element& GF2NT::Multiply(const Element &a, const Element &b) const
{
size_t aSize = STDMIN(a.reg.size(), result.reg.size());
Element r((word)0, m);
for (int i=m-1; i>=0; i--)
{
if (r[m-1])
{
ShiftWordsLeftByBits(r.reg.begin(), r.reg.size(), 1);
XorWords(r.reg.begin(), m_modulus.reg, r.reg.size());
}
else
ShiftWordsLeftByBits(r.reg.begin(), r.reg.size(), 1);
if (b[i])
XorWords(r.reg.begin(), a.reg, aSize);
}
if (m%WORD_BITS)
r.reg.begin()[r.reg.size()-1] = (word)Crop(r.reg[r.reg.size()-1], m%WORD_BITS);
CopyWords(result.reg.begin(), r.reg.begin(), result.reg.size());
return result;
}
const GF2NT::Element& GF2NT::Reduced(const Element &a) const
{
if (t0-t1 < WORD_BITS)
return m_domain.Mod(a, m_modulus);
SecWordBlock b(a.reg);
size_t i;
for (i=b.size()-1; i>=BitsToWords(t0); i--)
{
word temp = b[i];
if (t0%WORD_BITS)
{
b[i-t0/WORD_BITS] ^= temp >> t0%WORD_BITS;
b[i-t0/WORD_BITS-1] ^= temp << (WORD_BITS - t0%WORD_BITS);
}
else
b[i-t0/WORD_BITS] ^= temp;
if ((t0-t1)%WORD_BITS)
{
b[i-(t0-t1)/WORD_BITS] ^= temp >> (t0-t1)%WORD_BITS;
b[i-(t0-t1)/WORD_BITS-1] ^= temp << (WORD_BITS - (t0-t1)%WORD_BITS);
}
else
b[i-(t0-t1)/WORD_BITS] ^= temp;
}
if (i==BitsToWords(t0)-1 && t0%WORD_BITS)
{
word mask = ((word)1<<(t0%WORD_BITS))-1;
word temp = b[i] & ~mask;
b[i] &= mask;
b[i-t0/WORD_BITS] ^= temp >> t0%WORD_BITS;
if ((t0-t1)%WORD_BITS)
{
b[i-(t0-t1)/WORD_BITS] ^= temp >> (t0-t1)%WORD_BITS;
if ((t0-t1)%WORD_BITS > t0%WORD_BITS)
b[i-(t0-t1)/WORD_BITS-1] ^= temp << (WORD_BITS - (t0-t1)%WORD_BITS);
else
assert(temp << (WORD_BITS - (t0-t1)%WORD_BITS) == 0);
}
else
b[i-(t0-t1)/WORD_BITS] ^= temp;
}
SetWords(result.reg.begin(), 0, result.reg.size());
CopyWords(result.reg.begin(), b, STDMIN(b.size(), result.reg.size()));
return result;
}
void GF2NP::DEREncodeElement(BufferedTransformation &out, const Element &a) const
{
a.DEREncodeAsOctetString(out, MaxElementByteLength());
}
void GF2NP::BERDecodeElement(BufferedTransformation &in, Element &a) const
{
a.BERDecodeAsOctetString(in, MaxElementByteLength());
}
void GF2NT::DEREncode(BufferedTransformation &bt) const
{
DERSequenceEncoder seq(bt);
ASN1::characteristic_two_field().DEREncode(seq);
DERSequenceEncoder parameters(seq);
DEREncodeUnsigned(parameters, m);
ASN1::tpBasis().DEREncode(parameters);
DEREncodeUnsigned(parameters, t1);
parameters.MessageEnd();
seq.MessageEnd();
}
void GF2NPP::DEREncode(BufferedTransformation &bt) const
{
DERSequenceEncoder seq(bt);
ASN1::characteristic_two_field().DEREncode(seq);
DERSequenceEncoder parameters(seq);
DEREncodeUnsigned(parameters, m);
ASN1::ppBasis().DEREncode(parameters);
DERSequenceEncoder pentanomial(parameters);
DEREncodeUnsigned(pentanomial, t3);
DEREncodeUnsigned(pentanomial, t2);
DEREncodeUnsigned(pentanomial, t1);
pentanomial.MessageEnd();
parameters.MessageEnd();
seq.MessageEnd();
}
GF2NP * BERDecodeGF2NP(BufferedTransformation &bt)
{
// VC60 workaround: auto_ptr lacks reset()
member_ptr<GF2NP> result;
BERSequenceDecoder seq(bt);
if (OID(seq) != ASN1::characteristic_two_field())
BERDecodeError();
BERSequenceDecoder parameters(seq);
unsigned int m;
BERDecodeUnsigned(parameters, m);
OID oid(parameters);
if (oid == ASN1::tpBasis())
{
unsigned int t1;
BERDecodeUnsigned(parameters, t1);
result.reset(new GF2NT(m, t1, 0));
}
else if (oid == ASN1::ppBasis())
{
unsigned int t1, t2, t3;
BERSequenceDecoder pentanomial(parameters);
BERDecodeUnsigned(pentanomial, t3);
BERDecodeUnsigned(pentanomial, t2);
BERDecodeUnsigned(pentanomial, t1);
pentanomial.MessageEnd();
result.reset(new GF2NPP(m, t3, t2, t1, 0));
}
else
{
BERDecodeError();
return NULL;
}
parameters.MessageEnd();
seq.MessageEnd();
return result.release();
}
NAMESPACE_END
#endif

369
lib/cryptopp/gf2n.h
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@ -1,369 +0,0 @@
#ifndef CRYPTOPP_GF2N_H
#define CRYPTOPP_GF2N_H
/*! \file */
#include "cryptlib.h"
#include "secblock.h"
#include "misc.h"
#include "algebra.h"
#include <iosfwd>
NAMESPACE_BEGIN(CryptoPP)
//! Polynomial with Coefficients in GF(2)
/*! \nosubgrouping */
class CRYPTOPP_DLL PolynomialMod2
{
public:
//! \name ENUMS, EXCEPTIONS, and TYPEDEFS
//@{
//! divide by zero exception
class DivideByZero : public Exception
{
public:
DivideByZero() : Exception(OTHER_ERROR, "PolynomialMod2: division by zero") {}
};
typedef unsigned int RandomizationParameter;
//@}
//! \name CREATORS
//@{
//! creates the zero polynomial
PolynomialMod2();
//! copy constructor
PolynomialMod2(const PolynomialMod2& t);
//! convert from word
/*! value should be encoded with the least significant bit as coefficient to x^0
and most significant bit as coefficient to x^(WORD_BITS-1)
bitLength denotes how much memory to allocate initially
*/
PolynomialMod2(word value, size_t bitLength=WORD_BITS);
//! convert from big-endian byte array
PolynomialMod2(const byte *encodedPoly, size_t byteCount)
{Decode(encodedPoly, byteCount);}
//! convert from big-endian form stored in a BufferedTransformation
PolynomialMod2(BufferedTransformation &encodedPoly, size_t byteCount)
{Decode(encodedPoly, byteCount);}
//! create a random polynomial uniformly distributed over all polynomials with degree less than bitcount
PolynomialMod2(RandomNumberGenerator &rng, size_t bitcount)
{Randomize(rng, bitcount);}
//! return x^i
static PolynomialMod2 CRYPTOPP_API Monomial(size_t i);
//! return x^t0 + x^t1 + x^t2
static PolynomialMod2 CRYPTOPP_API Trinomial(size_t t0, size_t t1, size_t t2);
//! return x^t0 + x^t1 + x^t2 + x^t3 + x^t4
static PolynomialMod2 CRYPTOPP_API Pentanomial(size_t t0, size_t t1, size_t t2, size_t t3, size_t t4);
//! return x^(n-1) + ... + x + 1
static PolynomialMod2 CRYPTOPP_API AllOnes(size_t n);
//!
static const PolynomialMod2 & CRYPTOPP_API Zero();
//!
static const PolynomialMod2 & CRYPTOPP_API One();
//@}
//! \name ENCODE/DECODE
//@{
//! minimum number of bytes to encode this polynomial
/*! MinEncodedSize of 0 is 1 */
unsigned int MinEncodedSize() const {return STDMAX(1U, ByteCount());}
//! encode in big-endian format
/*! if outputLen < MinEncodedSize, the most significant bytes will be dropped
if outputLen > MinEncodedSize, the most significant bytes will be padded
*/
void Encode(byte *output, size_t outputLen) const;
//!
void Encode(BufferedTransformation &bt, size_t outputLen) const;
//!
void Decode(const byte *input, size_t inputLen);
//!
//* Precondition: bt.MaxRetrievable() >= inputLen
void Decode(BufferedTransformation &bt, size_t inputLen);
//! encode value as big-endian octet string
void DEREncodeAsOctetString(BufferedTransformation &bt, size_t length) const;
//! decode value as big-endian octet string
void BERDecodeAsOctetString(BufferedTransformation &bt, size_t length);
//@}
//! \name ACCESSORS
//@{
//! number of significant bits = Degree() + 1
unsigned int BitCount() const;
//! number of significant bytes = ceiling(BitCount()/8)
unsigned int ByteCount() const;
//! number of significant words = ceiling(ByteCount()/sizeof(word))
unsigned int WordCount() const;
//! return the n-th bit, n=0 being the least significant bit
bool GetBit(size_t n) const {return GetCoefficient(n)!=0;}
//! return the n-th byte
byte GetByte(size_t n) const;
//! the zero polynomial will return a degree of -1
signed int Degree() const {return BitCount()-1;}
//! degree + 1
unsigned int CoefficientCount() const {return BitCount();}
//! return coefficient for x^i
int GetCoefficient(size_t i) const
{return (i/WORD_BITS < reg.size()) ? int(reg[i/WORD_BITS] >> (i % WORD_BITS)) & 1 : 0;}
//! return coefficient for x^i
int operator[](unsigned int i) const {return GetCoefficient(i);}
//!
bool IsZero() const {return !*this;}
//!
bool Equals(const PolynomialMod2 &rhs) const;
//@}
//! \name MANIPULATORS
//@{
//!
PolynomialMod2& operator=(const PolynomialMod2& t);
//!
PolynomialMod2& operator&=(const PolynomialMod2& t);
//!
PolynomialMod2& operator^=(const PolynomialMod2& t);
//!
PolynomialMod2& operator+=(const PolynomialMod2& t) {return *this ^= t;}
//!
PolynomialMod2& operator-=(const PolynomialMod2& t) {return *this ^= t;}
//!
PolynomialMod2& operator*=(const PolynomialMod2& t);
//!
PolynomialMod2& operator/=(const PolynomialMod2& t);
//!
PolynomialMod2& operator%=(const PolynomialMod2& t);
//!
PolynomialMod2& operator<<=(unsigned int);
//!
PolynomialMod2& operator>>=(unsigned int);
//!
void Randomize(RandomNumberGenerator &rng, size_t bitcount);
//!
void SetBit(size_t i, int value = 1);
//! set the n-th byte to value
void SetByte(size_t n, byte value);
//!
void SetCoefficient(size_t i, int value) {SetBit(i, value);}
//!
void swap(PolynomialMod2 &a) {reg.swap(a.reg);}
//@}
//! \name UNARY OPERATORS
//@{
//!
bool operator!() const;
//!
PolynomialMod2 operator+() const {return *this;}
//!
PolynomialMod2 operator-() const {return *this;}
//@}
//! \name BINARY OPERATORS
//@{
//!
PolynomialMod2 And(const PolynomialMod2 &b) const;
//!
PolynomialMod2 Xor(const PolynomialMod2 &b) const;
//!
PolynomialMod2 Plus(const PolynomialMod2 &b) const {return Xor(b);}
//!
PolynomialMod2 Minus(const PolynomialMod2 &b) const {return Xor(b);}
//!
PolynomialMod2 Times(const PolynomialMod2 &b) const;
//!
PolynomialMod2 DividedBy(const PolynomialMod2 &b) const;
//!
PolynomialMod2 Modulo(const PolynomialMod2 &b) const;
//!
PolynomialMod2 operator>>(unsigned int n) const;
//!
PolynomialMod2 operator<<(unsigned int n) const;
//@}
//! \name OTHER ARITHMETIC FUNCTIONS
//@{
//! sum modulo 2 of all coefficients
unsigned int Parity() const;
//! check for irreducibility
bool IsIrreducible() const;
//! is always zero since we're working modulo 2
PolynomialMod2 Doubled() const {return Zero();}
//!
PolynomialMod2 Squared() const;
//! only 1 is a unit
bool IsUnit() const {return Equals(One());}
//! return inverse if *this is a unit, otherwise return 0
PolynomialMod2 MultiplicativeInverse() const {return IsUnit() ? One() : Zero();}
//! greatest common divisor
static PolynomialMod2 CRYPTOPP_API Gcd(const PolynomialMod2 &a, const PolynomialMod2 &n);
//! calculate multiplicative inverse of *this mod n
PolynomialMod2 InverseMod(const PolynomialMod2 &) const;
//! calculate r and q such that (a == d*q + r) && (deg(r) < deg(d))
static void CRYPTOPP_API Divide(PolynomialMod2 &r, PolynomialMod2 &q, const PolynomialMod2 &a, const PolynomialMod2 &d);
//@}
//! \name INPUT/OUTPUT
//@{
//!
friend std::ostream& operator<<(std::ostream& out, const PolynomialMod2 &a);
//@}
private:
friend class GF2NT;
SecWordBlock reg;
};
//!
inline bool operator==(const CryptoPP::PolynomialMod2 &a, const CryptoPP::PolynomialMod2 &b)
{return a.Equals(b);}
//!
inline bool operator!=(const CryptoPP::PolynomialMod2 &a, const CryptoPP::PolynomialMod2 &b)
{return !(a==b);}
//! compares degree
inline bool operator> (const CryptoPP::PolynomialMod2 &a, const CryptoPP::PolynomialMod2 &b)
{return a.Degree() > b.Degree();}
//! compares degree
inline bool operator>=(const CryptoPP::PolynomialMod2 &a, const CryptoPP::PolynomialMod2 &b)
{return a.Degree() >= b.Degree();}
//! compares degree
inline bool operator< (const CryptoPP::PolynomialMod2 &a, const CryptoPP::PolynomialMod2 &b)
{return a.Degree() < b.Degree();}
//! compares degree
inline bool operator<=(const CryptoPP::PolynomialMod2 &a, const CryptoPP::PolynomialMod2 &b)
{return a.Degree() <= b.Degree();}
//!
inline CryptoPP::PolynomialMod2 operator&(const CryptoPP::PolynomialMod2 &a, const CryptoPP::PolynomialMod2 &b) {return a.And(b);}
//!
inline CryptoPP::PolynomialMod2 operator^(const CryptoPP::PolynomialMod2 &a, const CryptoPP::PolynomialMod2 &b) {return a.Xor(b);}
//!
inline CryptoPP::PolynomialMod2 operator+(const CryptoPP::PolynomialMod2 &a, const CryptoPP::PolynomialMod2 &b) {return a.Plus(b);}
//!
inline CryptoPP::PolynomialMod2 operator-(const CryptoPP::PolynomialMod2 &a, const CryptoPP::PolynomialMod2 &b) {return a.Minus(b);}
//!
inline CryptoPP::PolynomialMod2 operator*(const CryptoPP::PolynomialMod2 &a, const CryptoPP::PolynomialMod2 &b) {return a.Times(b);}
//!
inline CryptoPP::PolynomialMod2 operator/(const CryptoPP::PolynomialMod2 &a, const CryptoPP::PolynomialMod2 &b) {return a.DividedBy(b);}
//!
inline CryptoPP::PolynomialMod2 operator%(const CryptoPP::PolynomialMod2 &a, const CryptoPP::PolynomialMod2 &b) {return a.Modulo(b);}
// CodeWarrior 8 workaround: put these template instantiations after overloaded operator declarations,
// but before the use of QuotientRing<EuclideanDomainOf<PolynomialMod2> > for VC .NET 2003
CRYPTOPP_DLL_TEMPLATE_CLASS AbstractGroup<PolynomialMod2>;
CRYPTOPP_DLL_TEMPLATE_CLASS AbstractRing<PolynomialMod2>;
CRYPTOPP_DLL_TEMPLATE_CLASS AbstractEuclideanDomain<PolynomialMod2>;
CRYPTOPP_DLL_TEMPLATE_CLASS EuclideanDomainOf<PolynomialMod2>;
CRYPTOPP_DLL_TEMPLATE_CLASS QuotientRing<EuclideanDomainOf<PolynomialMod2> >;
//! GF(2^n) with Polynomial Basis
class CRYPTOPP_DLL GF2NP : public QuotientRing<EuclideanDomainOf<PolynomialMod2> >
{
public:
GF2NP(const PolynomialMod2 &modulus);
virtual GF2NP * Clone() const {return new GF2NP(*this);}
virtual void DEREncode(BufferedTransformation &bt) const
{assert(false);} // no ASN.1 syntax yet for general polynomial basis
void DEREncodeElement(BufferedTransformation &out, const Element &a) const;
void BERDecodeElement(BufferedTransformation &in, Element &a) const;
bool Equal(const Element &a, const Element &b) const
{assert(a.Degree() < m_modulus.Degree() && b.Degree() < m_modulus.Degree()); return a.Equals(b);}
bool IsUnit(const Element &a) const
{assert(a.Degree() < m_modulus.Degree()); return !!a;}
unsigned int MaxElementBitLength() const
{return m;}
unsigned int MaxElementByteLength() const
{return (unsigned int)BitsToBytes(MaxElementBitLength());}
Element SquareRoot(const Element &a) const;
Element HalfTrace(const Element &a) const;
// returns z such that z^2 + z == a
Element SolveQuadraticEquation(const Element &a) const;
protected:
unsigned int m;
};
//! GF(2^n) with Trinomial Basis
class CRYPTOPP_DLL GF2NT : public GF2NP
{
public:
// polynomial modulus = x^t0 + x^t1 + x^t2, t0 > t1 > t2
GF2NT(unsigned int t0, unsigned int t1, unsigned int t2);
GF2NP * Clone() const {return new GF2NT(*this);}
void DEREncode(BufferedTransformation &bt) const;
const Element& Multiply(const Element &a, const Element &b) const;
const Element& Square(const Element &a) const
{return Reduced(a.Squared());}
const Element& MultiplicativeInverse(const Element &a) const;
private:
const Element& Reduced(const Element &a) const;
unsigned int t0, t1;
mutable PolynomialMod2 result;
};
//! GF(2^n) with Pentanomial Basis
class CRYPTOPP_DLL GF2NPP : public GF2NP
{
public:
// polynomial modulus = x^t0 + x^t1 + x^t2 + x^t3 + x^t4, t0 > t1 > t2 > t3 > t4
GF2NPP(unsigned int t0, unsigned int t1, unsigned int t2, unsigned int t3, unsigned int t4)
: GF2NP(PolynomialMod2::Pentanomial(t0, t1, t2, t3, t4)), t0(t0), t1(t1), t2(t2), t3(t3) {}
GF2NP * Clone() const {return new GF2NPP(*this);}
void DEREncode(BufferedTransformation &bt) const;
private:
unsigned int t0, t1, t2, t3;
};
// construct new GF2NP from the ASN.1 sequence Characteristic-two
CRYPTOPP_DLL GF2NP * CRYPTOPP_API BERDecodeGF2NP(BufferedTransformation &bt);
NAMESPACE_END
#ifndef __BORLANDC__
NAMESPACE_BEGIN(std)
template<> inline void swap(CryptoPP::PolynomialMod2 &a, CryptoPP::PolynomialMod2 &b)
{
a.swap(b);
}
NAMESPACE_END
#endif
#endif

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// dsa.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "gfpcrypt.h"
#include "asn.h"
#include "oids.h"
#include "nbtheory.h"
NAMESPACE_BEGIN(CryptoPP)
void TestInstantiations_gfpcrypt()
{
GDSA<SHA>::Signer test;
GDSA<SHA>::Verifier test1;
DSA::Signer test5(NullRNG(), 100);
DSA::Signer test2(test5);
NR<SHA>::Signer test3;
NR<SHA>::Verifier test4;
DLIES<>::Encryptor test6;
DLIES<>::Decryptor test7;
}
void DL_GroupParameters_DSA::GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg)
{
Integer p, q, g;
if (alg.GetValue("Modulus", p) && alg.GetValue("SubgroupGenerator", g))
{
q = alg.GetValueWithDefault("SubgroupOrder", ComputeGroupOrder(p)/2);
Initialize(p, q, g);
}
else
{
int modulusSize = 1024, defaultSubgroupOrderSize;
alg.GetIntValue("ModulusSize", modulusSize) || alg.GetIntValue("KeySize", modulusSize);
switch (modulusSize)
{
case 1024:
defaultSubgroupOrderSize = 160;
break;
case 2048:
defaultSubgroupOrderSize = 224;
break;
case 3072:
defaultSubgroupOrderSize = 256;
break;
default:
throw InvalidArgument("DSA: not a valid prime length");
}
DL_GroupParameters_GFP::GenerateRandom(rng, CombinedNameValuePairs(alg, MakeParameters(Name::SubgroupOrderSize(), defaultSubgroupOrderSize, false)));
}
}
bool DL_GroupParameters_DSA::ValidateGroup(RandomNumberGenerator &rng, unsigned int level) const
{
bool pass = DL_GroupParameters_GFP::ValidateGroup(rng, level);
int pSize = GetModulus().BitCount(), qSize = GetSubgroupOrder().BitCount();
pass = pass && ((pSize==1024 && qSize==160) || (pSize==2048 && qSize==224) || (pSize==2048 && qSize==256) || (pSize==3072 && qSize==256));
return pass;
}
void DL_SignatureMessageEncodingMethod_DSA::ComputeMessageRepresentative(RandomNumberGenerator &rng,
const byte *recoverableMessage, size_t recoverableMessageLength,
HashTransformation &hash, HashIdentifier hashIdentifier, bool messageEmpty,
byte *representative, size_t representativeBitLength) const
{
assert(recoverableMessageLength == 0);
assert(hashIdentifier.second == 0);
const size_t representativeByteLength = BitsToBytes(representativeBitLength);
const size_t digestSize = hash.DigestSize();
const size_t paddingLength = SaturatingSubtract(representativeByteLength, digestSize);
memset(representative, 0, paddingLength);
hash.TruncatedFinal(representative+paddingLength, STDMIN(representativeByteLength, digestSize));
if (digestSize*8 > representativeBitLength)
{
Integer h(representative, representativeByteLength);
h >>= representativeByteLength*8 - representativeBitLength;
h.Encode(representative, representativeByteLength);
}
}
void DL_SignatureMessageEncodingMethod_NR::ComputeMessageRepresentative(RandomNumberGenerator &rng,
const byte *recoverableMessage, size_t recoverableMessageLength,
HashTransformation &hash, HashIdentifier hashIdentifier, bool messageEmpty,
byte *representative, size_t representativeBitLength) const
{
assert(recoverableMessageLength == 0);
assert(hashIdentifier.second == 0);
const size_t representativeByteLength = BitsToBytes(representativeBitLength);
const size_t digestSize = hash.DigestSize();
const size_t paddingLength = SaturatingSubtract(representativeByteLength, digestSize);
memset(representative, 0, paddingLength);
hash.TruncatedFinal(representative+paddingLength, STDMIN(representativeByteLength, digestSize));
if (digestSize*8 >= representativeBitLength)
{
Integer h(representative, representativeByteLength);
h >>= representativeByteLength*8 - representativeBitLength + 1;
h.Encode(representative, representativeByteLength);
}
}
bool DL_GroupParameters_IntegerBased::ValidateGroup(RandomNumberGenerator &rng, unsigned int level) const
{
const Integer &p = GetModulus(), &q = GetSubgroupOrder();
bool pass = true;
pass = pass && p > Integer::One() && p.IsOdd();
pass = pass && q > Integer::One() && q.IsOdd();
if (level >= 1)
pass = pass && GetCofactor() > Integer::One() && GetGroupOrder() % q == Integer::Zero();
if (level >= 2)
pass = pass && VerifyPrime(rng, q, level-2) && VerifyPrime(rng, p, level-2);
return pass;
}
bool DL_GroupParameters_IntegerBased::ValidateElement(unsigned int level, const Integer &g, const DL_FixedBasePrecomputation<Integer> *gpc) const
{
const Integer &p = GetModulus(), &q = GetSubgroupOrder();
bool pass = true;
pass = pass && GetFieldType() == 1 ? g.IsPositive() : g.NotNegative();
pass = pass && g < p && !IsIdentity(g);
if (level >= 1)
{
if (gpc)
pass = pass && gpc->Exponentiate(GetGroupPrecomputation(), Integer::One()) == g;
}
if (level >= 2)
{
if (GetFieldType() == 2)
pass = pass && Jacobi(g*g-4, p)==-1;
// verifying that Lucas((p+1)/2, w, p)==2 is omitted because it's too costly
// and at most 1 bit is leaked if it's false
bool fullValidate = (GetFieldType() == 2 && level >= 3) || !FastSubgroupCheckAvailable();
if (fullValidate && pass)
{
Integer gp = gpc ? gpc->Exponentiate(GetGroupPrecomputation(), q) : ExponentiateElement(g, q);
pass = pass && IsIdentity(gp);
}
else if (GetFieldType() == 1)
pass = pass && Jacobi(g, p) == 1;
}
return pass;
}
void DL_GroupParameters_IntegerBased::GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg)
{
Integer p, q, g;
if (alg.GetValue("Modulus", p) && alg.GetValue("SubgroupGenerator", g))
{
q = alg.GetValueWithDefault("SubgroupOrder", ComputeGroupOrder(p)/2);
}
else
{
int modulusSize, subgroupOrderSize;
if (!alg.GetIntValue("ModulusSize", modulusSize))
modulusSize = alg.GetIntValueWithDefault("KeySize", 2048);
if (!alg.GetIntValue("SubgroupOrderSize", subgroupOrderSize))
subgroupOrderSize = GetDefaultSubgroupOrderSize(modulusSize);
PrimeAndGenerator pg;
pg.Generate(GetFieldType() == 1 ? 1 : -1, rng, modulusSize, subgroupOrderSize);
p = pg.Prime();
q = pg.SubPrime();
g = pg.Generator();
}
Initialize(p, q, g);
}
Integer DL_GroupParameters_IntegerBased::DecodeElement(const byte *encoded, bool checkForGroupMembership) const
{
Integer g(encoded, GetModulus().ByteCount());
if (!ValidateElement(1, g, NULL))
throw DL_BadElement();
return g;
}
void DL_GroupParameters_IntegerBased::BERDecode(BufferedTransformation &bt)
{
BERSequenceDecoder parameters(bt);
Integer p(parameters);
Integer q(parameters);
Integer g;
if (parameters.EndReached())
{
g = q;
q = ComputeGroupOrder(p) / 2;
}
else
g.BERDecode(parameters);
parameters.MessageEnd();
SetModulusAndSubgroupGenerator(p, g);
SetSubgroupOrder(q);
}
void DL_GroupParameters_IntegerBased::DEREncode(BufferedTransformation &bt) const
{
DERSequenceEncoder parameters(bt);
GetModulus().DEREncode(parameters);
m_q.DEREncode(parameters);
GetSubgroupGenerator().DEREncode(parameters);
parameters.MessageEnd();
}
bool DL_GroupParameters_IntegerBased::GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const
{
return GetValueHelper<DL_GroupParameters<Element> >(this, name, valueType, pValue)
CRYPTOPP_GET_FUNCTION_ENTRY(Modulus);
}
void DL_GroupParameters_IntegerBased::AssignFrom(const NameValuePairs &source)
{
AssignFromHelper(this, source)
CRYPTOPP_SET_FUNCTION_ENTRY2(Modulus, SubgroupGenerator)
CRYPTOPP_SET_FUNCTION_ENTRY(SubgroupOrder)
;
}
OID DL_GroupParameters_IntegerBased::GetAlgorithmID() const
{
return ASN1::id_dsa();
}
void DL_GroupParameters_GFP::SimultaneousExponentiate(Element *results, const Element &base, const Integer *exponents, unsigned int exponentsCount) const
{
ModularArithmetic ma(GetModulus());
ma.SimultaneousExponentiate(results, base, exponents, exponentsCount);
}
DL_GroupParameters_GFP::Element DL_GroupParameters_GFP::MultiplyElements(const Element &a, const Element &b) const
{
return a_times_b_mod_c(a, b, GetModulus());
}
DL_GroupParameters_GFP::Element DL_GroupParameters_GFP::CascadeExponentiate(const Element &element1, const Integer &exponent1, const Element &element2, const Integer &exponent2) const
{
ModularArithmetic ma(GetModulus());
return ma.CascadeExponentiate(element1, exponent1, element2, exponent2);
}
Integer DL_GroupParameters_IntegerBased::GetMaxExponent() const
{
return STDMIN(GetSubgroupOrder()-1, Integer::Power2(2*DiscreteLogWorkFactor(GetFieldType()*GetModulus().BitCount())));
}
unsigned int DL_GroupParameters_IntegerBased::GetDefaultSubgroupOrderSize(unsigned int modulusSize) const
{
return 2*DiscreteLogWorkFactor(GetFieldType()*modulusSize);
}
NAMESPACE_END
#endif

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#ifndef CRYPTOPP_GFPCRYPT_H
#define CRYPTOPP_GFPCRYPT_H
/** \file
Implementation of schemes based on DL over GF(p)
*/
#include "pubkey.h"
#include "modexppc.h"
#include "sha.h"
#include "algparam.h"
#include "asn.h"
#include "smartptr.h"
#include "hmac.h"
#include <limits.h>
NAMESPACE_BEGIN(CryptoPP)
CRYPTOPP_DLL_TEMPLATE_CLASS DL_GroupParameters<Integer>;
//! _
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE DL_GroupParameters_IntegerBased : public ASN1CryptoMaterial<DL_GroupParameters<Integer> >
{
typedef DL_GroupParameters_IntegerBased ThisClass;
public:
void Initialize(const DL_GroupParameters_IntegerBased &params)
{Initialize(params.GetModulus(), params.GetSubgroupOrder(), params.GetSubgroupGenerator());}
void Initialize(RandomNumberGenerator &rng, unsigned int pbits)
{GenerateRandom(rng, MakeParameters("ModulusSize", (int)pbits));}
void Initialize(const Integer &p, const Integer &g)
{SetModulusAndSubgroupGenerator(p, g); SetSubgroupOrder(ComputeGroupOrder(p)/2);}
void Initialize(const Integer &p, const Integer &q, const Integer &g)
{SetModulusAndSubgroupGenerator(p, g); SetSubgroupOrder(q);}
// ASN1Object interface
void BERDecode(BufferedTransformation &bt);
void DEREncode(BufferedTransformation &bt) const;
// GeneratibleCryptoMaterial interface
/*! parameters: (ModulusSize, SubgroupOrderSize (optional)) */
void GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg);
bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const;
void AssignFrom(const NameValuePairs &source);
// DL_GroupParameters
const Integer & GetSubgroupOrder() const {return m_q;}
Integer GetGroupOrder() const {return GetFieldType() == 1 ? GetModulus()-Integer::One() : GetModulus()+Integer::One();}
bool ValidateGroup(RandomNumberGenerator &rng, unsigned int level) const;
bool ValidateElement(unsigned int level, const Integer &element, const DL_FixedBasePrecomputation<Integer> *precomp) const;
bool FastSubgroupCheckAvailable() const {return GetCofactor() == 2;}
void EncodeElement(bool reversible, const Element &element, byte *encoded) const
{element.Encode(encoded, GetModulus().ByteCount());}
unsigned int GetEncodedElementSize(bool reversible) const {return GetModulus().ByteCount();}
Integer DecodeElement(const byte *encoded, bool checkForGroupMembership) const;
Integer ConvertElementToInteger(const Element &element) const
{return element;}
Integer GetMaxExponent() const;
static std::string CRYPTOPP_API StaticAlgorithmNamePrefix() {return "";}
OID GetAlgorithmID() const;
virtual const Integer & GetModulus() const =0;
virtual void SetModulusAndSubgroupGenerator(const Integer &p, const Integer &g) =0;
void SetSubgroupOrder(const Integer &q)
{m_q = q; ParametersChanged();}
protected:
Integer ComputeGroupOrder(const Integer &modulus) const
{return modulus-(GetFieldType() == 1 ? 1 : -1);}
// GF(p) = 1, GF(p^2) = 2
virtual int GetFieldType() const =0;
virtual unsigned int GetDefaultSubgroupOrderSize(unsigned int modulusSize) const;
private:
Integer m_q;
};
//! _
template <class GROUP_PRECOMP, class BASE_PRECOMP = DL_FixedBasePrecomputationImpl<CPP_TYPENAME GROUP_PRECOMP::Element> >
class CRYPTOPP_NO_VTABLE DL_GroupParameters_IntegerBasedImpl : public DL_GroupParametersImpl<GROUP_PRECOMP, BASE_PRECOMP, DL_GroupParameters_IntegerBased>
{
typedef DL_GroupParameters_IntegerBasedImpl<GROUP_PRECOMP, BASE_PRECOMP> ThisClass;
public:
typedef typename GROUP_PRECOMP::Element Element;
// GeneratibleCryptoMaterial interface
bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const
{return GetValueHelper<DL_GroupParameters_IntegerBased>(this, name, valueType, pValue).Assignable();}
void AssignFrom(const NameValuePairs &source)
{AssignFromHelper<DL_GroupParameters_IntegerBased>(this, source);}
// DL_GroupParameters
const DL_FixedBasePrecomputation<Element> & GetBasePrecomputation() const {return this->m_gpc;}
DL_FixedBasePrecomputation<Element> & AccessBasePrecomputation() {return this->m_gpc;}
// IntegerGroupParameters
const Integer & GetModulus() const {return this->m_groupPrecomputation.GetModulus();}
const Integer & GetGenerator() const {return this->m_gpc.GetBase(this->GetGroupPrecomputation());}
void SetModulusAndSubgroupGenerator(const Integer &p, const Integer &g) // these have to be set together
{this->m_groupPrecomputation.SetModulus(p); this->m_gpc.SetBase(this->GetGroupPrecomputation(), g); this->ParametersChanged();}
// non-inherited
bool operator==(const DL_GroupParameters_IntegerBasedImpl<GROUP_PRECOMP, BASE_PRECOMP> &rhs) const
{return GetModulus() == rhs.GetModulus() && GetGenerator() == rhs.GetGenerator() && this->GetSubgroupOrder() == rhs.GetSubgroupOrder();}
bool operator!=(const DL_GroupParameters_IntegerBasedImpl<GROUP_PRECOMP, BASE_PRECOMP> &rhs) const
{return !operator==(rhs);}
};
CRYPTOPP_DLL_TEMPLATE_CLASS DL_GroupParameters_IntegerBasedImpl<ModExpPrecomputation>;
//! GF(p) group parameters
class CRYPTOPP_DLL DL_GroupParameters_GFP : public DL_GroupParameters_IntegerBasedImpl<ModExpPrecomputation>
{
public:
// DL_GroupParameters
bool IsIdentity(const Integer &element) const {return element == Integer::One();}
void SimultaneousExponentiate(Element *results, const Element &base, const Integer *exponents, unsigned int exponentsCount) const;
// NameValuePairs interface
bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const
{
return GetValueHelper<DL_GroupParameters_IntegerBased>(this, name, valueType, pValue).Assignable();
}
// used by MQV
Element MultiplyElements(const Element &a, const Element &b) const;
Element CascadeExponentiate(const Element &element1, const Integer &exponent1, const Element &element2, const Integer &exponent2) const;
protected:
int GetFieldType() const {return 1;}
};
//! GF(p) group parameters that default to same primes
class CRYPTOPP_DLL DL_GroupParameters_GFP_DefaultSafePrime : public DL_GroupParameters_GFP
{
public:
typedef NoCofactorMultiplication DefaultCofactorOption;
protected:
unsigned int GetDefaultSubgroupOrderSize(unsigned int modulusSize) const {return modulusSize-1;}
};
//! GDSA algorithm
template <class T>
class DL_Algorithm_GDSA : public DL_ElgamalLikeSignatureAlgorithm<T>
{
public:
static const char * CRYPTOPP_API StaticAlgorithmName() {return "DSA-1363";}
void Sign(const DL_GroupParameters<T> &params, const Integer &x, const Integer &k, const Integer &e, Integer &r, Integer &s) const
{
const Integer &q = params.GetSubgroupOrder();
r %= q;
Integer kInv = k.InverseMod(q);
s = (kInv * (x*r + e)) % q;
assert(!!r && !!s);
}
bool Verify(const DL_GroupParameters<T> &params, const DL_PublicKey<T> &publicKey, const Integer &e, const Integer &r, const Integer &s) const
{
const Integer &q = params.GetSubgroupOrder();
if (r>=q || r<1 || s>=q || s<1)
return false;
Integer w = s.InverseMod(q);
Integer u1 = (e * w) % q;
Integer u2 = (r * w) % q;
// verify r == (g^u1 * y^u2 mod p) mod q
return r == params.ConvertElementToInteger(publicKey.CascadeExponentiateBaseAndPublicElement(u1, u2)) % q;
}
};
CRYPTOPP_DLL_TEMPLATE_CLASS DL_Algorithm_GDSA<Integer>;
//! NR algorithm
template <class T>
class DL_Algorithm_NR : public DL_ElgamalLikeSignatureAlgorithm<T>
{
public:
static const char * CRYPTOPP_API StaticAlgorithmName() {return "NR";}
void Sign(const DL_GroupParameters<T> &params, const Integer &x, const Integer &k, const Integer &e, Integer &r, Integer &s) const
{
const Integer &q = params.GetSubgroupOrder();
r = (r + e) % q;
s = (k - x*r) % q;
assert(!!r);
}
bool Verify(const DL_GroupParameters<T> &params, const DL_PublicKey<T> &publicKey, const Integer &e, const Integer &r, const Integer &s) const
{
const Integer &q = params.GetSubgroupOrder();
if (r>=q || r<1 || s>=q)
return false;
// check r == (m_g^s * m_y^r + m) mod m_q
return r == (params.ConvertElementToInteger(publicKey.CascadeExponentiateBaseAndPublicElement(s, r)) + e) % q;
}
};
/*! DSA public key format is defined in 7.3.3 of RFC 2459. The
private key format is defined in 12.9 of PKCS #11 v2.10. */
template <class GP>
class DL_PublicKey_GFP : public DL_PublicKeyImpl<GP>
{
public:
void Initialize(const DL_GroupParameters_IntegerBased &params, const Integer &y)
{this->AccessGroupParameters().Initialize(params); this->SetPublicElement(y);}
void Initialize(const Integer &p, const Integer &g, const Integer &y)
{this->AccessGroupParameters().Initialize(p, g); this->SetPublicElement(y);}
void Initialize(const Integer &p, const Integer &q, const Integer &g, const Integer &y)
{this->AccessGroupParameters().Initialize(p, q, g); this->SetPublicElement(y);}
// X509PublicKey
void BERDecodePublicKey(BufferedTransformation &bt, bool, size_t)
{this->SetPublicElement(Integer(bt));}
void DEREncodePublicKey(BufferedTransformation &bt) const
{this->GetPublicElement().DEREncode(bt);}
};
//! DL private key (in GF(p) groups)
template <class GP>
class DL_PrivateKey_GFP : public DL_PrivateKeyImpl<GP>
{
public:
void Initialize(RandomNumberGenerator &rng, unsigned int modulusBits)
{this->GenerateRandomWithKeySize(rng, modulusBits);}
void Initialize(RandomNumberGenerator &rng, const Integer &p, const Integer &g)
{this->GenerateRandom(rng, MakeParameters("Modulus", p)("SubgroupGenerator", g));}
void Initialize(RandomNumberGenerator &rng, const Integer &p, const Integer &q, const Integer &g)
{this->GenerateRandom(rng, MakeParameters("Modulus", p)("SubgroupOrder", q)("SubgroupGenerator", g));}
void Initialize(const DL_GroupParameters_IntegerBased &params, const Integer &x)
{this->AccessGroupParameters().Initialize(params); this->SetPrivateExponent(x);}
void Initialize(const Integer &p, const Integer &g, const Integer &x)
{this->AccessGroupParameters().Initialize(p, g); this->SetPrivateExponent(x);}
void Initialize(const Integer &p, const Integer &q, const Integer &g, const Integer &x)
{this->AccessGroupParameters().Initialize(p, q, g); this->SetPrivateExponent(x);}
};
//! DL signing/verification keys (in GF(p) groups)
struct DL_SignatureKeys_GFP
{
typedef DL_GroupParameters_GFP GroupParameters;
typedef DL_PublicKey_GFP<GroupParameters> PublicKey;
typedef DL_PrivateKey_GFP<GroupParameters> PrivateKey;
};
//! DL encryption/decryption keys (in GF(p) groups)
struct DL_CryptoKeys_GFP
{
typedef DL_GroupParameters_GFP_DefaultSafePrime GroupParameters;
typedef DL_PublicKey_GFP<GroupParameters> PublicKey;
typedef DL_PrivateKey_GFP<GroupParameters> PrivateKey;
};
//! provided for backwards compatibility, this class uses the old non-standard Crypto++ key format
template <class BASE>
class DL_PublicKey_GFP_OldFormat : public BASE
{
public:
void BERDecode(BufferedTransformation &bt)
{
BERSequenceDecoder seq(bt);
Integer v1(seq);
Integer v2(seq);
Integer v3(seq);
if (seq.EndReached())
{
this->AccessGroupParameters().Initialize(v1, v1/2, v2);
this->SetPublicElement(v3);
}
else
{
Integer v4(seq);
this->AccessGroupParameters().Initialize(v1, v2, v3);
this->SetPublicElement(v4);
}
seq.MessageEnd();
}
void DEREncode(BufferedTransformation &bt) const
{
DERSequenceEncoder seq(bt);
this->GetGroupParameters().GetModulus().DEREncode(seq);
if (this->GetGroupParameters().GetCofactor() != 2)
this->GetGroupParameters().GetSubgroupOrder().DEREncode(seq);
this->GetGroupParameters().GetGenerator().DEREncode(seq);
this->GetPublicElement().DEREncode(seq);
seq.MessageEnd();
}
};
//! provided for backwards compatibility, this class uses the old non-standard Crypto++ key format
template <class BASE>
class DL_PrivateKey_GFP_OldFormat : public BASE
{
public:
void BERDecode(BufferedTransformation &bt)
{
BERSequenceDecoder seq(bt);
Integer v1(seq);
Integer v2(seq);
Integer v3(seq);
Integer v4(seq);
if (seq.EndReached())
{
this->AccessGroupParameters().Initialize(v1, v1/2, v2);
this->SetPrivateExponent(v4 % (v1/2)); // some old keys may have x >= q
}
else
{
Integer v5(seq);
this->AccessGroupParameters().Initialize(v1, v2, v3);
this->SetPrivateExponent(v5);
}
seq.MessageEnd();
}
void DEREncode(BufferedTransformation &bt) const
{
DERSequenceEncoder seq(bt);
this->GetGroupParameters().GetModulus().DEREncode(seq);
if (this->GetGroupParameters().GetCofactor() != 2)
this->GetGroupParameters().GetSubgroupOrder().DEREncode(seq);
this->GetGroupParameters().GetGenerator().DEREncode(seq);
this->GetGroupParameters().ExponentiateBase(this->GetPrivateExponent()).DEREncode(seq);
this->GetPrivateExponent().DEREncode(seq);
seq.MessageEnd();
}
};
//! <a href="http://www.weidai.com/scan-mirror/sig.html#DSA-1363">DSA-1363</a>
template <class H>
struct GDSA : public DL_SS<
DL_SignatureKeys_GFP,
DL_Algorithm_GDSA<Integer>,
DL_SignatureMessageEncodingMethod_DSA,
H>
{
};
//! <a href="http://www.weidai.com/scan-mirror/sig.html#NR">NR</a>
template <class H>
struct NR : public DL_SS<
DL_SignatureKeys_GFP,
DL_Algorithm_NR<Integer>,
DL_SignatureMessageEncodingMethod_NR,
H>
{
};
//! DSA group parameters, these are GF(p) group parameters that are allowed by the DSA standard
class CRYPTOPP_DLL DL_GroupParameters_DSA : public DL_GroupParameters_GFP
{
public:
/*! also checks that the lengths of p and q are allowed by the DSA standard */
bool ValidateGroup(RandomNumberGenerator &rng, unsigned int level) const;
/*! parameters: (ModulusSize), or (Modulus, SubgroupOrder, SubgroupGenerator) */
/*! ModulusSize must be between DSA::MIN_PRIME_LENGTH and DSA::MAX_PRIME_LENGTH, and divisible by DSA::PRIME_LENGTH_MULTIPLE */
void GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg);
static bool CRYPTOPP_API IsValidPrimeLength(unsigned int pbits)
{return pbits >= MIN_PRIME_LENGTH && pbits <= MAX_PRIME_LENGTH && pbits % PRIME_LENGTH_MULTIPLE == 0;}
enum {MIN_PRIME_LENGTH = 1024, MAX_PRIME_LENGTH = 3072, PRIME_LENGTH_MULTIPLE = 1024};
};
template <class H>
class DSA2;
//! DSA keys
struct DL_Keys_DSA
{
typedef DL_PublicKey_GFP<DL_GroupParameters_DSA> PublicKey;
typedef DL_PrivateKey_WithSignaturePairwiseConsistencyTest<DL_PrivateKey_GFP<DL_GroupParameters_DSA>, DSA2<SHA> > PrivateKey;
};
//! <a href="http://en.wikipedia.org/wiki/Digital_Signature_Algorithm">DSA</a>, as specified in FIPS 186-3
// class named DSA2 instead of DSA for backwards compatibility (DSA was a non-template class)
template <class H>
class DSA2 : public DL_SS<
DL_Keys_DSA,
DL_Algorithm_GDSA<Integer>,
DL_SignatureMessageEncodingMethod_DSA,
H,
DSA2<H> >
{
public:
static std::string CRYPTOPP_API StaticAlgorithmName() {return "DSA/" + (std::string)H::StaticAlgorithmName();}
};
//! DSA with SHA-1, typedef'd for backwards compatibility
typedef DSA2<SHA> DSA;
CRYPTOPP_DLL_TEMPLATE_CLASS DL_PublicKey_GFP<DL_GroupParameters_DSA>;
CRYPTOPP_DLL_TEMPLATE_CLASS DL_PrivateKey_GFP<DL_GroupParameters_DSA>;
CRYPTOPP_DLL_TEMPLATE_CLASS DL_PrivateKey_WithSignaturePairwiseConsistencyTest<DL_PrivateKey_GFP<DL_GroupParameters_DSA>, DSA2<SHA> >;
//! the XOR encryption method, for use with DL-based cryptosystems
template <class MAC, bool DHAES_MODE>
class DL_EncryptionAlgorithm_Xor : public DL_SymmetricEncryptionAlgorithm
{
public:
bool ParameterSupported(const char *name) const {return strcmp(name, Name::EncodingParameters()) == 0;}
size_t GetSymmetricKeyLength(size_t plaintextLength) const
{return plaintextLength + MAC::DEFAULT_KEYLENGTH;}
size_t GetSymmetricCiphertextLength(size_t plaintextLength) const
{return plaintextLength + MAC::DIGESTSIZE;}
size_t GetMaxSymmetricPlaintextLength(size_t ciphertextLength) const
{return (unsigned int)SaturatingSubtract(ciphertextLength, (unsigned int)MAC::DIGESTSIZE);}
void SymmetricEncrypt(RandomNumberGenerator &rng, const byte *key, const byte *plaintext, size_t plaintextLength, byte *ciphertext, const NameValuePairs &parameters) const
{
const byte *cipherKey, *macKey;
if (DHAES_MODE)
{
macKey = key;
cipherKey = key + MAC::DEFAULT_KEYLENGTH;
}
else
{
cipherKey = key;
macKey = key + plaintextLength;
}
ConstByteArrayParameter encodingParameters;
parameters.GetValue(Name::EncodingParameters(), encodingParameters);
xorbuf(ciphertext, plaintext, cipherKey, plaintextLength);
MAC mac(macKey);
mac.Update(ciphertext, plaintextLength);
mac.Update(encodingParameters.begin(), encodingParameters.size());
if (DHAES_MODE)
{
byte L[8] = {0,0,0,0};
PutWord(false, BIG_ENDIAN_ORDER, L+4, word32(encodingParameters.size()));
mac.Update(L, 8);
}
mac.Final(ciphertext + plaintextLength);
}
DecodingResult SymmetricDecrypt(const byte *key, const byte *ciphertext, size_t ciphertextLength, byte *plaintext, const NameValuePairs &parameters) const
{
size_t plaintextLength = GetMaxSymmetricPlaintextLength(ciphertextLength);
const byte *cipherKey, *macKey;
if (DHAES_MODE)
{
macKey = key;
cipherKey = key + MAC::DEFAULT_KEYLENGTH;
}
else
{
cipherKey = key;
macKey = key + plaintextLength;
}
ConstByteArrayParameter encodingParameters;
parameters.GetValue(Name::EncodingParameters(), encodingParameters);
MAC mac(macKey);
mac.Update(ciphertext, plaintextLength);
mac.Update(encodingParameters.begin(), encodingParameters.size());
if (DHAES_MODE)
{
byte L[8] = {0,0,0,0};
PutWord(false, BIG_ENDIAN_ORDER, L+4, word32(encodingParameters.size()));
mac.Update(L, 8);
}
if (!mac.Verify(ciphertext + plaintextLength))
return DecodingResult();
xorbuf(plaintext, ciphertext, cipherKey, plaintextLength);
return DecodingResult(plaintextLength);
}
};
//! _
template <class T, bool DHAES_MODE, class KDF>
class DL_KeyDerivationAlgorithm_P1363 : public DL_KeyDerivationAlgorithm<T>
{
public:
bool ParameterSupported(const char *name) const {return strcmp(name, Name::KeyDerivationParameters()) == 0;}
void Derive(const DL_GroupParameters<T> &params, byte *derivedKey, size_t derivedLength, const T &agreedElement, const T &ephemeralPublicKey, const NameValuePairs &parameters) const
{
SecByteBlock agreedSecret;
if (DHAES_MODE)
{
agreedSecret.New(params.GetEncodedElementSize(true) + params.GetEncodedElementSize(false));
params.EncodeElement(true, ephemeralPublicKey, agreedSecret);
params.EncodeElement(false, agreedElement, agreedSecret + params.GetEncodedElementSize(true));
}
else
{
agreedSecret.New(params.GetEncodedElementSize(false));
params.EncodeElement(false, agreedElement, agreedSecret);
}
ConstByteArrayParameter derivationParameters;
parameters.GetValue(Name::KeyDerivationParameters(), derivationParameters);
KDF::DeriveKey(derivedKey, derivedLength, agreedSecret, agreedSecret.size(), derivationParameters.begin(), derivationParameters.size());
}
};
//! Discrete Log Integrated Encryption Scheme, AKA <a href="http://www.weidai.com/scan-mirror/ca.html#DLIES">DLIES</a>
template <class COFACTOR_OPTION = NoCofactorMultiplication, bool DHAES_MODE = true>
struct DLIES
: public DL_ES<
DL_CryptoKeys_GFP,
DL_KeyAgreementAlgorithm_DH<Integer, COFACTOR_OPTION>,
DL_KeyDerivationAlgorithm_P1363<Integer, DHAES_MODE, P1363_KDF2<SHA1> >,
DL_EncryptionAlgorithm_Xor<HMAC<SHA1>, DHAES_MODE>,
DLIES<> >
{
static std::string CRYPTOPP_API StaticAlgorithmName() {return "DLIES";} // TODO: fix this after name is standardized
};
NAMESPACE_END
#endif

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lib/cryptopp/gzip.h
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#ifndef CRYPTOPP_GZIP_H
#define CRYPTOPP_GZIP_H
#include "zdeflate.h"
#include "zinflate.h"
#include "crc.h"
NAMESPACE_BEGIN(CryptoPP)
/// GZIP Compression (RFC 1952)
class Gzip : public Deflator
{
public:
Gzip(BufferedTransformation *attachment=NULL, unsigned int deflateLevel=DEFAULT_DEFLATE_LEVEL, unsigned int log2WindowSize=DEFAULT_LOG2_WINDOW_SIZE, bool detectUncompressible=true)
: Deflator(attachment, deflateLevel, log2WindowSize, detectUncompressible) {}
Gzip(const NameValuePairs &parameters, BufferedTransformation *attachment=NULL)
: Deflator(parameters, attachment) {}
protected:
enum {MAGIC1=0x1f, MAGIC2=0x8b, // flags for the header
DEFLATED=8, FAST=4, SLOW=2};
void WritePrestreamHeader();
void ProcessUncompressedData(const byte *string, size_t length);
void WritePoststreamTail();
word32 m_totalLen;
CRC32 m_crc;
};
/// GZIP Decompression (RFC 1952)
class Gunzip : public Inflator
{
public:
typedef Inflator::Err Err;
class HeaderErr : public Err {public: HeaderErr() : Err(INVALID_DATA_FORMAT, "Gunzip: header decoding error") {}};
class TailErr : public Err {public: TailErr() : Err(INVALID_DATA_FORMAT, "Gunzip: tail too short") {}};
class CrcErr : public Err {public: CrcErr() : Err(DATA_INTEGRITY_CHECK_FAILED, "Gunzip: CRC check error") {}};
class LengthErr : public Err {public: LengthErr() : Err(DATA_INTEGRITY_CHECK_FAILED, "Gunzip: length check error") {}};
/*! \param repeat decompress multiple compressed streams in series
\param autoSignalPropagation 0 to turn off MessageEnd signal
*/
Gunzip(BufferedTransformation *attachment = NULL, bool repeat = false, int autoSignalPropagation = -1);
protected:
enum {MAGIC1=0x1f, MAGIC2=0x8b, // flags for the header
DEFLATED=8};
enum FLAG_MASKS {
CONTINUED=2, EXTRA_FIELDS=4, FILENAME=8, COMMENTS=16, ENCRYPTED=32};
unsigned int MaxPrestreamHeaderSize() const {return 1024;}
void ProcessPrestreamHeader();
void ProcessDecompressedData(const byte *string, size_t length);
unsigned int MaxPoststreamTailSize() const {return 8;}
void ProcessPoststreamTail();
word32 m_length;
CRC32 m_crc;
};
NAMESPACE_END
#endif

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lib/cryptopp/hex.cpp
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// hex.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "hex.h"
NAMESPACE_BEGIN(CryptoPP)
static const byte s_vecUpper[] = "0123456789ABCDEF";
static const byte s_vecLower[] = "0123456789abcdef";
void HexEncoder::IsolatedInitialize(const NameValuePairs &parameters)
{
bool uppercase = parameters.GetValueWithDefault(Name::Uppercase(), true);
m_filter->Initialize(CombinedNameValuePairs(
parameters,
MakeParameters(Name::EncodingLookupArray(), uppercase ? &s_vecUpper[0] : &s_vecLower[0], false)(Name::Log2Base(), 4, true)));
}
void HexDecoder::IsolatedInitialize(const NameValuePairs &parameters)
{
BaseN_Decoder::IsolatedInitialize(CombinedNameValuePairs(
parameters,
MakeParameters(Name::DecodingLookupArray(), GetDefaultDecodingLookupArray(), false)(Name::Log2Base(), 4, true)));
}
const int *HexDecoder::GetDefaultDecodingLookupArray()
{
static volatile bool s_initialized = false;
static int s_array[256];
if (!s_initialized)
{
InitializeDecodingLookupArray(s_array, s_vecUpper, 16, true);
s_initialized = true;
}
return s_array;
}
NAMESPACE_END
#endif

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lib/cryptopp/hex.h
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#ifndef CRYPTOPP_HEX_H
#define CRYPTOPP_HEX_H
#include "basecode.h"
NAMESPACE_BEGIN(CryptoPP)
//! Converts given data to base 16
class CRYPTOPP_DLL HexEncoder : public SimpleProxyFilter
{
public:
HexEncoder(BufferedTransformation *attachment = NULL, bool uppercase = true, int outputGroupSize = 0, const std::string &separator = ":", const std::string &terminator = "")
: SimpleProxyFilter(new BaseN_Encoder(new Grouper), attachment)
{
IsolatedInitialize(MakeParameters(Name::Uppercase(), uppercase)(Name::GroupSize(), outputGroupSize)(Name::Separator(), ConstByteArrayParameter(separator))(Name::Terminator(), ConstByteArrayParameter(terminator)));
}
void IsolatedInitialize(const NameValuePairs &parameters);
};
//! Decode base 16 data back to bytes
class CRYPTOPP_DLL HexDecoder : public BaseN_Decoder
{
public:
HexDecoder(BufferedTransformation *attachment = NULL)
: BaseN_Decoder(GetDefaultDecodingLookupArray(), 4, attachment) {}
void IsolatedInitialize(const NameValuePairs &parameters);
private:
static const int * CRYPTOPP_API GetDefaultDecodingLookupArray();
};
NAMESPACE_END
#endif

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lib/cryptopp/hmac.cpp
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// hmac.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#ifndef CRYPTOPP_IMPORTS
#include "hmac.h"
NAMESPACE_BEGIN(CryptoPP)
void HMAC_Base::UncheckedSetKey(const byte *userKey, unsigned int keylength, const NameValuePairs &)
{
AssertValidKeyLength(keylength);
Restart();
HashTransformation &hash = AccessHash();
unsigned int blockSize = hash.BlockSize();
if (!blockSize)
throw InvalidArgument("HMAC: can only be used with a block-based hash function");
m_buf.resize(2*AccessHash().BlockSize() + AccessHash().DigestSize());
if (keylength <= blockSize)
memcpy(AccessIpad(), userKey, keylength);
else
{
AccessHash().CalculateDigest(AccessIpad(), userKey, keylength);
keylength = hash.DigestSize();
}
assert(keylength <= blockSize);
memset(AccessIpad()+keylength, 0, blockSize-keylength);
for (unsigned int i=0; i<blockSize; i++)
{
AccessOpad()[i] = AccessIpad()[i] ^ 0x5c;
AccessIpad()[i] ^= 0x36;
}
}
void HMAC_Base::KeyInnerHash()
{
assert(!m_innerHashKeyed);
HashTransformation &hash = AccessHash();
hash.Update(AccessIpad(), hash.BlockSize());
m_innerHashKeyed = true;
}
void HMAC_Base::Restart()
{
if (m_innerHashKeyed)
{
AccessHash().Restart();
m_innerHashKeyed = false;
}
}
void HMAC_Base::Update(const byte *input, size_t length)
{
if (!m_innerHashKeyed)
KeyInnerHash();
AccessHash().Update(input, length);
}
void HMAC_Base::TruncatedFinal(byte *mac, size_t size)
{
ThrowIfInvalidTruncatedSize(size);
HashTransformation &hash = AccessHash();
if (!m_innerHashKeyed)
KeyInnerHash();
hash.Final(AccessInnerHash());
hash.Update(AccessOpad(), hash.BlockSize());
hash.Update(AccessInnerHash(), hash.DigestSize());
hash.TruncatedFinal(mac, size);
m_innerHashKeyed = false;
}
NAMESPACE_END
#endif

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lib/cryptopp/hmac.h
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// hmac.h - written and placed in the public domain by Wei Dai
#ifndef CRYPTOPP_HMAC_H
#define CRYPTOPP_HMAC_H
#include "seckey.h"
#include "secblock.h"
NAMESPACE_BEGIN(CryptoPP)
//! _
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE HMAC_Base : public VariableKeyLength<16, 0, INT_MAX>, public MessageAuthenticationCode
{
public:
HMAC_Base() : m_innerHashKeyed(false) {}
void UncheckedSetKey(const byte *userKey, unsigned int keylength, const NameValuePairs &params);
void Restart();
void Update(const byte *input, size_t length);
void TruncatedFinal(byte *mac, size_t size);
unsigned int OptimalBlockSize() const {return const_cast<HMAC_Base*>(this)->AccessHash().OptimalBlockSize();}
unsigned int DigestSize() const {return const_cast<HMAC_Base*>(this)->AccessHash().DigestSize();}
protected:
virtual HashTransformation & AccessHash() =0;
byte * AccessIpad() {return m_buf;}
byte * AccessOpad() {return m_buf + AccessHash().BlockSize();}
byte * AccessInnerHash() {return m_buf + 2*AccessHash().BlockSize();}
private:
void KeyInnerHash();
SecByteBlock m_buf;
bool m_innerHashKeyed;
};
//! <a href="http://www.weidai.com/scan-mirror/mac.html#HMAC">HMAC</a>
/*! HMAC(K, text) = H(K XOR opad, H(K XOR ipad, text)) */
template <class T>
class HMAC : public MessageAuthenticationCodeImpl<HMAC_Base, HMAC<T> >
{
public:
CRYPTOPP_CONSTANT(DIGESTSIZE=T::DIGESTSIZE)
CRYPTOPP_CONSTANT(BLOCKSIZE=T::BLOCKSIZE)
HMAC() {}
HMAC(const byte *key, size_t length=HMAC_Base::DEFAULT_KEYLENGTH)
{this->SetKey(key, length);}
static std::string StaticAlgorithmName() {return std::string("HMAC(") + T::StaticAlgorithmName() + ")";}
std::string AlgorithmName() const {return std::string("HMAC(") + m_hash.AlgorithmName() + ")";}
private:
HashTransformation & AccessHash() {return m_hash;}
T m_hash;
};
NAMESPACE_END
#endif

138
lib/cryptopp/hrtimer.cpp
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// hrtimer.cpp - written and placed in the public domain by Wei Dai
#include "pch.h"
#include "hrtimer.h"
#include "misc.h"
#include <stddef.h> // for NULL
#include <time.h>
#if defined(CRYPTOPP_WIN32_AVAILABLE)
#include <windows.h>
#elif defined(CRYPTOPP_UNIX_AVAILABLE)
#include <sys/time.h>
#include <sys/times.h>
#include <unistd.h>
#endif
#include <assert.h>
NAMESPACE_BEGIN(CryptoPP)
#ifndef CRYPTOPP_IMPORTS
double TimerBase::ConvertTo(TimerWord t, Unit unit)
{
static unsigned long unitsPerSecondTable[] = {1, 1000, 1000*1000, 1000*1000*1000};
assert(unit < sizeof(unitsPerSecondTable) / sizeof(unitsPerSecondTable[0]));
return (double)CRYPTOPP_VC6_INT64 t * unitsPerSecondTable[unit] / CRYPTOPP_VC6_INT64 TicksPerSecond();
}
void TimerBase::StartTimer()
{
m_last = m_start = GetCurrentTimerValue();
m_started = true;
}
double TimerBase::ElapsedTimeAsDouble()
{
if (m_stuckAtZero)
return 0;
if (m_started)
{
TimerWord now = GetCurrentTimerValue();
if (m_last < now) // protect against OS bugs where time goes backwards
m_last = now;
return ConvertTo(m_last - m_start, m_timerUnit);
}
StartTimer();
return 0;
}
unsigned long TimerBase::ElapsedTime()
{
double elapsed = ElapsedTimeAsDouble();
assert(elapsed <= ULONG_MAX);
return (unsigned long)elapsed;
}
TimerWord Timer::GetCurrentTimerValue()
{
#if defined(CRYPTOPP_WIN32_AVAILABLE)
LARGE_INTEGER now;
if (!QueryPerformanceCounter(&now))
throw Exception(Exception::OTHER_ERROR, "Timer: QueryPerformanceCounter failed with error " + IntToString(GetLastError()));
return now.QuadPart;
#elif defined(CRYPTOPP_UNIX_AVAILABLE)
timeval now;
gettimeofday(&now, NULL);
return (TimerWord)now.tv_sec * 1000000 + now.tv_usec;
#else
return clock();
#endif
}
TimerWord Timer::TicksPerSecond()
{
#if defined(CRYPTOPP_WIN32_AVAILABLE)
static LARGE_INTEGER freq = {0};
if (freq.QuadPart == 0)
{
if (!QueryPerformanceFrequency(&freq))
throw Exception(Exception::OTHER_ERROR, "Timer: QueryPerformanceFrequency failed with error " + IntToString(GetLastError()));
}
return freq.QuadPart;
#elif defined(CRYPTOPP_UNIX_AVAILABLE)
return 1000000;
#else
return CLOCKS_PER_SEC;
#endif
}
#endif // #ifndef CRYPTOPP_IMPORTS
TimerWord ThreadUserTimer::GetCurrentTimerValue()
{
#if defined(CRYPTOPP_WIN32_AVAILABLE)
static bool getCurrentThreadImplemented = true;
if (getCurrentThreadImplemented)
{
FILETIME now, ignored;
if (!GetThreadTimes(GetCurrentThread(), &ignored, &ignored, &ignored, &now))
{
DWORD lastError = GetLastError();
if (lastError == ERROR_CALL_NOT_IMPLEMENTED)
{
getCurrentThreadImplemented = false;
goto GetCurrentThreadNotImplemented;
}
throw Exception(Exception::OTHER_ERROR, "ThreadUserTimer: GetThreadTimes failed with error " + IntToString(lastError));
}
return now.dwLowDateTime + ((TimerWord)now.dwHighDateTime << 32);
}
GetCurrentThreadNotImplemented:
return (TimerWord)clock() * (10*1000*1000 / CLOCKS_PER_SEC);
#elif defined(CRYPTOPP_UNIX_AVAILABLE)
tms now;
times(&now);
return now.tms_utime;
#else
return clock();
#endif
}
TimerWord ThreadUserTimer::TicksPerSecond()
{
#if defined(CRYPTOPP_WIN32_AVAILABLE)
return 10*1000*1000;
#elif defined(CRYPTOPP_UNIX_AVAILABLE)
static const long ticksPerSecond = sysconf(_SC_CLK_TCK);
return ticksPerSecond;
#else
return CLOCKS_PER_SEC;
#endif
}
NAMESPACE_END

61
lib/cryptopp/hrtimer.h
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#ifndef CRYPTOPP_HRTIMER_H
#define CRYPTOPP_HRTIMER_H
#include "config.h"
#ifndef HIGHRES_TIMER_AVAILABLE
#include <time.h>
#endif
NAMESPACE_BEGIN(CryptoPP)
#ifdef HIGHRES_TIMER_AVAILABLE
typedef word64 TimerWord;
#else
typedef clock_t TimerWord;
#endif
//! _
class CRYPTOPP_DLL CRYPTOPP_NO_VTABLE TimerBase
{
public:
enum Unit {SECONDS = 0, MILLISECONDS, MICROSECONDS, NANOSECONDS};
TimerBase(Unit unit, bool stuckAtZero) : m_timerUnit(unit), m_stuckAtZero(stuckAtZero), m_started(false) {}
virtual TimerWord GetCurrentTimerValue() =0; // GetCurrentTime is a macro in MSVC 6.0
virtual TimerWord TicksPerSecond() =0; // this is not the resolution, just a conversion factor into seconds
void StartTimer();
double ElapsedTimeAsDouble();
unsigned long ElapsedTime();
private:
double ConvertTo(TimerWord t, Unit unit);
Unit m_timerUnit; // HPUX workaround: m_unit is a system macro on HPUX
bool m_stuckAtZero, m_started;
TimerWord m_start, m_last;
};
//! measure CPU time spent executing instructions of this thread (if supported by OS)
/*! /note This only works correctly on Windows NT or later. On Unix it reports process time, and others wall clock time.
*/
class ThreadUserTimer : public TimerBase
{
public:
ThreadUserTimer(Unit unit = TimerBase::SECONDS, bool stuckAtZero = false) : TimerBase(unit, stuckAtZero) {}
TimerWord GetCurrentTimerValue();
TimerWord TicksPerSecond();
};
//! high resolution timer
class CRYPTOPP_DLL Timer : public TimerBase
{
public:
Timer(Unit unit = TimerBase::SECONDS, bool stuckAtZero = false) : TimerBase(unit, stuckAtZero) {}
TimerWord GetCurrentTimerValue();
TimerWord TicksPerSecond();
};
NAMESPACE_END
#endif

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