- 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.
SipHash *is* a cryptographic function, with a 128-bit security level.
However, it is not a regular hash function: a secret key is required,
and knowledge of that key allows collisions to be quickly computed offline.
SipHash is therefore more suitable to be used as a MAC.
The same API as other MACs was implemented in addition to functions directly
returning an integer.
The benchmarks have been updated accordingly.
No changes to the SipHash implementation itself.
