protocol

hash_digest_protocol

Protocol for fixed-size cryptographic hash functions exposing raw digests and digest metadata.

Availability:

logtalk_load(hashes(loader))

Author: Paulo Moura

Version: 1:0:0

Date: 2026-04-16

Compilation flags:

static

Extends:

public hash_protocol

Remarks:

(none)

Inherited public predicates:

 hash/2

Public predicates

digest/2

Computes the digest for a list of bytes and returns it as a list of bytes.

Compilation flags:

static

Template:

digest(Bytes,Digest)

Mode and number of proofs:

digest(+list(byte),--list(byte)) - one

---

digest_size/1

Returns the digest size in bytes.

Compilation flags:

static

Template:

digest_size(DigestSize)

Mode and number of proofs:

digest_size(--integer) - one

---

block_size/1

Returns the hash block size in bytes.

Compilation flags:

static

Template:

block_size(BlockSize)

Mode and number of proofs:

block_size(--integer) - one

---

Protected predicates

(no local declarations; see entity ancestors if any)

Private predicates

(no local declarations; see entity ancestors if any)

Operators

(none)