12 Commits

Author SHA1 Message Date
Frank Denis
fa17447090 std/crypto: make the whole APIs more consistent
- use `PascalCase` for all types. So, AES256GCM is now Aes256Gcm.
- consistently use `_length` instead of mixing `_size` and `_length` for the
constants we expose
- Use `minimum_key_length` when it represents an actual minimum length.
Otherwise, use `key_length`.
- Require output buffers (for ciphertexts, macs, hashes) to be of the right
size, not at least of that size in some functions, and the exact size elsewhere.
- Use a `_bits` suffix instead of `_length` when a size is represented as a
number of bits to avoid confusion.
- Functions returning a constant-sized slice are now defined as a slice instead
of a pointer + a runtime assertion. This is the case for most hash functions.
- Use `camelCase` for all functions instead of `snake_case`.

No functional changes, but these are breaking API changes.
2020-10-17 18:53:08 -04:00
Frank Denis
f39dc00ed4 std/crypto/aes: add AES hardware acceleration on aarch64 2020-10-08 14:55:08 +02:00
Frank Denis
bd89bd6fdb Revamp crypto/aes
* Reorganize crypto/aes in order to separate parameters, implementations and
modes.
* Add a zero-cost abstraction over the internal representation of a block,
so that blocks can be kept in vector registers in optimized implementations.
* Add architecture-independent aesenc/aesdec/aesenclast/aesdeclast operations,
so that any AES-based primitive can be implemented, including these that don't
use the original key schedule (AES-PRF, AEGIS, MeowHash...)
* Add support for parallelization/wide blocks to take advantage of hardware
implementations.
* Align T-tables to cache lines in the software implementations to slightly
reduce side channels.
* Add an optimized implementation for modern Intel CPUs with AES-NI.
* Add new tests (AES256 key expansion).
* Reimplement the counter mode to work with any block cipher, any endianness
and to take advantage of wide blocks.
* Add benchmarks for AES.
2020-09-24 13:16:00 -04:00
Andrew Kelley
4a69b11e74 add license header to all std lib files
add SPDX license identifier
copyright ownership is zig contributors
2020-08-20 16:07:04 -04:00
Žiga Željko
130435a17a Split AES struct into AESEncrypt and AESDecrypt 2020-04-28 04:52:42 +08:00
Andrew Kelley
f614d94faa
update std lib to take advantage of slicing with comptime indexes 2020-03-19 14:48:47 -04:00
Andrew Kelley
bf3ac66150
remove type coercion from array values to references
* Implements #3768. This is a sweeping breaking change that requires
   many (trivial) edits to Zig source code. Array values no longer
   coerced to slices; however one may use `&` to obtain a reference to
   an array value, which may then be coerced to a slice.

 * Adds `IrInstruction::dump`, for debugging purposes. It's useful to
   call to inspect the instruction when debugging Zig IR.

 * Fixes bugs with result location semantics. See the new behavior test
   cases, and compile error test cases.

 * Fixes bugs with `@typeInfo` not properly resolving const values.

 * Behavior tests are passing but std lib tests are not yet. There
   is more work to do before merging this branch.
2019-11-27 03:37:50 -05:00
Andrew Kelley
e0db54e89d
update the codebase to use @as 2019-11-08 15:57:24 -05:00
lukechampine
3d907b2943 crypto: Add support for AES-CTR 2019-11-05 11:33:11 -05:00
data-man
42ccdc2765 Replace AES variables to constants 2019-11-04 17:43:14 -05:00
Luke Champine
eb95afbc66
remove speculative AES TODOs 2019-11-04 13:59:26 -05:00
lukechampine
f403aa6cee crypto: Add AES implementation 2019-11-01 22:42:25 -04:00