object

fips202_hash(RateBytes,Suffix,OutputBytes)

Common implementation of the standardized FIPS 202 SHA-3 and SHAKE variants using the Keccak-f[1600] permutation.

Availability:

logtalk_load(hashes(loader))

Author: Paulo Moura

Version: 1:1:0

Date: 2026-04-15

Compilation flags:

static, context_switching_calls

Implements:

public hash_protocol

Uses:

hash_common_32

hash_common_64

list

Remarks:

(none)

Inherited public predicates:

 hash/2

Public predicates

(no local declarations; see entity ancestors if any)

Protected predicates

absorb/2

Absorbs the input bytes into the Keccak state and returns the resulting state after the final padded block permutation.

Compilation flags:

static

Template:

absorb(Bytes,State)

Mode and number of proofs:

absorb(+list(byte),--list(integer)) - one

---

squeeze/3

Squeezes the requested number of output bytes from a Keccak state.

Compilation flags:

static

Template:

squeeze(State,OutputBytes,DigestBytes)

Mode and number of proofs:

squeeze(+list(integer),+integer,--list(byte)) - one

---

Private predicates

(no local declarations; see entity ancestors if any)

Operators

(none)