Crate oxicrypto_hash 

Pure Rust hash function implementations for the OxiCrypto stack.

Provides Hash-trait wrappers and StreamingHash adapters for:

• SHA-2: SHA-256, SHA-384, SHA-512, SHA-512/256 (FIPS 180-4)
• SHA-3: SHA3-256, SHA3-384, SHA3-512 (FIPS 202)
• BLAKE2: BLAKE2b-256, BLAKE2b-512, BLAKE2s-256 (RFC 7693)
• BLAKE3: standard, keyed-hash, key-derivation, XOF (blake3 spec)
• SHAKE128/256, cSHAKE128/256, TupleHash128/256 (NIST SP 800-185)
• BLAKE2b keyed-hash mode (RFC 7693 MAC mode)

All streaming adapters implement StreamingHash via the generic DigestStreamingAdapter wrapper which works with any digest::Digest + Default type.

Structs

Blake3

BLAKE3 hash function (32-byte output by default).

Blake2b256

BLAKE2b-256 hash function (32-byte output, RFC 7693).

Blake2b512

BLAKE2b-512 hash function (64-byte output, RFC 7693).

Blake2bKeyed

BLAKE2b keyed-hash (MAC mode), with variable output size 1–64 bytes.

Blake2s256

BLAKE2s-256 hash function (32-byte output, RFC 7693).

Blake3Keyed

BLAKE3 keyed-hash (MAC-like): deterministic 32-byte output under a 32-byte key.

Blake3Streaming

Streaming BLAKE3 hasher (32-byte output).

DigestStreamingAdapter

Generic streaming adapter wrapping any digest::Digest + Default type.

HashBuilder

Fluent builder producing a boxed one-shot Hash instance.

ParallelHash128

ParallelHash128 configured with a block size and customization string.

ParallelHash256

ParallelHash256 configured with a block size and customization string.

Sha3_256

SHA3-256 hash function (32-byte output, FIPS 202).

Sha3_384

SHA3-384 hash function (48-byte output, FIPS 202).

Sha3_512

SHA3-512 hash function (64-byte output, FIPS 202).

Sha256

SHA-256 hash function (32-byte output, FIPS 180-4 §6.2).

Sha384

SHA-384 hash function (48-byte output, FIPS 180-4 §6.5).

Sha512

SHA-512 hash function (64-byte output, FIPS 180-4 §6.4).

Sha512_256

SHA-512/256 truncated hash function (32-byte output, FIPS 180-4 §6.7).

Shake128Reader

SHAKE128 XOF reader: stream an arbitrary number of output bytes from a finalised SHAKE128 state.

Shake256Reader

SHAKE256 XOF reader: stream an arbitrary number of output bytes from a finalised SHAKE256 state.

StreamingHashBuilder

Fluent builder producing a DynStreamingHash instance.

Enums

DynStreamingHash

Runtime-dispatched streaming hasher returned by StreamingHashBuilder::build.

HashAlgorithm

Hash algorithm selector used by HashBuilder.

Functions

blake2b_keyed

Hash msg under key with BLAKE2b in keyed mode; output is written to out.

blake3_derive_key

Derive a 32-byte key using BLAKE3 key-derivation mode.

blake3_keyed_hash

Hash msg under key with BLAKE3 keyed-hash mode; returns 32 bytes.

blake3_xof

Hash msg with BLAKE3 and return output_len bytes.

cshake128

Hash msg with cSHAKE128 (NIST SP 800-185 §3) and fill out.

cshake256

Hash msg with cSHAKE256 (NIST SP 800-185 §3) and fill out.

parallel_hash128

ParallelHash128 with fixed output length (NIST SP 800-185 §6.1).

parallel_hash256

ParallelHash256 with fixed output length (NIST SP 800-185 §6.2).

parallel_hash128_xof

ParallelHash128 in extendable-output (XOF) mode (NIST SP 800-185 §6.3).

parallel_hash256_xof

ParallelHash256 in extendable-output (XOF) mode (NIST SP 800-185 §6.3).

shake128

Hash msg with SHAKE128 and fill out with extendable output.

shake256

Hash msg with SHAKE256 and fill out with extendable output.

shake128_start

Begin a SHAKE128 computation, returning a finalisable hasher.

shake256_start

Begin a SHAKE256 computation, returning a finalisable hasher.

tuple_hash128

TupleHash128 (NIST SP 800-185 §5).

tuple_hash256

TupleHash256 (NIST SP 800-185 §5).

Type Aliases

Blake2b256Streaming

Streaming BLAKE2b-256 hasher (32-byte output).

Blake2b512Streaming

Streaming BLAKE2b-512 hasher (64-byte output).

Blake2s256Streaming

Streaming BLAKE2s-256 hasher (32-byte output).

Sha3_256Streaming

Streaming SHA3-256 hasher.

Sha3_384Streaming

Streaming SHA3-384 hasher.

Sha3_512Streaming

Streaming SHA3-512 hasher.

Sha256Streaming

Streaming SHA-256 hasher.

Sha384Streaming

Streaming SHA-384 hasher.

Sha512Streaming

Streaming SHA-512 hasher.

Sha512_256Streaming

Streaming SHA-512/256 hasher.