Crate keccak_prime

Keccak derived functions specified in FIPS-202, SP800-185 and KangarooTwelve.

Example

let input_a = b"hello world";
let input_b = b"!";
let mut output = [0u8; 32];
hasher.update(input_a);
hasher.update(input_b);
hasher.finalize(&mut output);

Credits

• coruus/keccak-tiny for C implementation of keccak function
• @quininer for no-std support and rust implementation SP800-185
• mimoo/GoKangarooTwelve for GO implementation of KangarooTwelve
• @Vurich for optimizations
• @oleganza for adding support for half-duplex use

License

CC0. Attribution kindly requested. Blame taken too, but not liability.

Modules

• fortuna
  This is a simplified implementation of the Fortuna CSPRNG. The main difference from the original Fortuna is that we don’t use hashes for seeding; the hash is computed externally. Instead, we generate a key before the generation of pseudorandom data.
• prime
  Implements the Keccak-prime function.
• sloth
  Sloth VDF implementation.

Structs

• Buffer
  Holds internal Keccak state.
• Keccak
  The Keccak hash functions defined in Keccak SHA3 submission.
• Sha3
  The SHA3 hash functions defined in FIPS-202.
• Shake
  The SHAKE extendable-output functions defined in FIPS-202.

Traits

• Hasher
  A trait for hashing an arbitrary stream of bytes.
• IntoXof
  A trait used to convert Hasher into it’s Xof counterpart.
• Xof
  Extendable-output function (XOF) is a function on bit strings in which the output can be extended to any desired length.

Functions

• keccakf
  keccak-f[1600, 24]