Crate binius_hash

Implementations of cryptographic hash functions and related utilities used in Binius.

The default hash function Binius uses is Grøstl-256. Grøstl-256 was a SHA-3 competition finalist and based on the design of the AES block cipher. Binius selects Grøstl-256 as the default hash function because it internally makes use of the 8-bit Rijndael binary field, and so can be arithmetized efficiently with a Binius constraint system.

This crate also provides an implementation of Vision Mark-32, a cryptographic sponge function designed for efficient Binius arithmetization.

Re-exports

pub use permutation::INV_PACKED_TRANS_AES;

pub use permutation::INV_PACKED_TRANS_AES;

pub use compression::*;

Modules

compression

These interfaces are taken from p3_symmetric in Plonky3.

constants

digest

groestl

multi_digest

permutation

These interfaces are taken from p3_symmetric in Plonky3.

sha2

Structs

HashBuffer

Adapter that wraps a [Digest] references and exposes the [BufMut] interface.

INV_PACKED_TRANS_AES

Vision32Compression

One-way compression function that compresses two 32-byte strings into a single 32-byte string.

Vision32MDSTransform

The MDS step in the Vision Permutation which uses AdditiveNTT to compute matrix multiplication of the state vector 24x32b

Vision32bPermutation

This is the complete permutation function for the Vision hash which implements Permutation and CryptographicPermutation traits over PackedAESBinary8x32b as well as BinaryField32b

VisionHasherDigest

VisionHasherDigestByteSliced

Constants

AFFINE_FWD_AES

AFFINE_FWD_CONST_AES

AFFINE_INV_AES

AFFINE_INV_CONST_AES

NUM_ROUNDS

ROUND_KEYS

Functions

hash_serialize

Hashes a sequence of serializable items.

Type Aliases

Vision32ParallelDigest