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
xackus
b8b68cb279 std: clean up bitrotten imports in crypto 2020-09-08 12:54:28 -04:00
Frank Denis
fc55cd458a Hash functions now accept an option set
- This avoids having multiple `init()` functions for every combination
of optional parameters
- The API is consistent across all hash functions
- New options can be added later without breaking existing applications.
  For example, this is going to come in handy if we implement parallelization
  for BLAKE2 and BLAKE3.
- We don't have a mix of snake_case and camelCase functions any more, at
least in the public crypto API

Support for BLAKE2 salt and personalization (more commonly called context)
parameters have been implemented by the way to illustrate this.
2020-08-21 00:51:14 +02:00
Frank Denis
446597bd3c Remove the reset() function from hash functions
Justification:
- reset() is unnecessary; states that have to be reused can be copied
- reset() is error-prone. Copying a previous state prevents forgetting
  struct members.
- reset() forces implementation to store sensitive data (key, initial state)
  in memory even when they are not needed.
- reset() is confusing as it has a different meaning elsewhere in Zig.
2020-08-20 23:02:10 +02:00
Frank Denis
3bed749b1c Add truncated SHA512 variants 2020-08-20 23:02:10 +02:00
Frank Denis
6f9ea9eaef Breaking: sort std/crypto functions into categories
Instead of having all primitives and constructions share the same namespace,
they are now organized by category and function family.

Types within the same category are expected to share the exact same API.
2020-08-20 23:02:05 +02:00
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
Andrew Kelley
1d7861a36e
fix incorrect sentinel check 2020-03-19 13:18:14 -04:00
J.W
5275b01202 hashing algorithms: fix logic and index out of bounds 2020-02-24 13:43:54 -05:00
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
Andrew Kelley
ed36dbbd9c
mv std/ lib/
that's all this commit does. further commits will fix cli flags and
such.

see #2221
2019-09-25 23:35:41 -04:00