Module hash 

This module contains a selection of cryptographic hash functions implementing a common HashFunction trait.

Example

let digest1 = Sha256::digest(b"Hello, world!");

let mut hash_function = Sha256::default();
hash_function.update(b"Hello, ");
hash_function.update(b"world!");
let digest2 = hash_function.finalize();

assert_eq!(digest1, digest2);

Structs

Digest

Represents a digest of DIGEST_LEN bytes.

EllipticCurveMultisetHash

EllipticCurveMultisetHash (ECMH) is a homomorphic multiset hash function. Concretely, each element is mapped to a point on an elliptic curve on which the DL problem is hard (the Ristretto group in Curve25519), and the hash is the sum of all such points.

HashFunctionWrapper

This wraps a digest::Digest as a HashFunction.

Traits

Hash

This trait is implemented by all messages that can be hashed.

HashFunction

Trait implemented by hash functions providing a output of fixed length

MultisetHash

A Multiset Hash is a homomorphic hash function, which hashes arbitrary multisets of objects such that the hash of the union of two multisets is easy to compute from the hashes of the two multisets.

ReverseWrapper

This trait allows using a HashFunctionWrapper where a digest::Digest was expected.

Type Aliases

Blake2b256

The BLAKE2-256 hash function with 256 bit digests.

Keccak256

The KECCAK hash function with 256 bit digests.

Sha3_256

The SHA-3 hash function with 256 bit digests.

Sha3_512

The SHA-3 hash function with 512 bit digests.

Sha256

The SHA-2 hash function with 256 bit digests.

Sha512

The SHA-512 hash function with 512 bit digests.