5 Commits

Author SHA1 Message Date
Frank Denis
74a1175d9d std/*: add missing MIT license headers 2020-10-26 17:41:29 +01:00
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
8d67f15d36 aegis: add test vectors, and link to the latest version of the spec 2020-09-29 17:10:04 +02:00
Frank Denis
bb1c6bc376 Add AEGIS-256 as well 2020-09-29 17:10:04 +02:00
Frank Denis
9f274e1f7d std/crypto: add the AEGIS128L AEAD
Showcase that Zig can be a great option for high performance cryptography.

The AEGIS family of authenticated encryption algorithms was selected for
high-performance applications in the final portfolio of the CAESAR
competition.

They reuse the AES core function, but are substantially faster than the
CCM, GCM and OCB modes while offering a high level of security.

AEGIS algorithms are especially fast on CPUs with built-in AES support, and
the 128L variant fully takes advantage of the pipeline in modern Intel CPUs.

Performance of the Zig implementation is on par with libsodium.
2020-09-29 17:10:04 +02:00