gnutls_crypto_register_mac(3)

gnutls_crypto_register_mac3

Api function

Usage

#include <gnutls/crypto.h>

int gnutls_crypto_register_mac(gnutls_mac_algorithm_t algorithm, int priority, gnutls_mac_init_func init, gnutls_mac_setkey_func setkey, gnutls_mac_setnonce_func setnonce, gnutls_mac_hash_func hash, gnutls_mac_output_func output, gnutls_mac_deinit_func deinit, gnutls_mac_fast_func hash_fast);

Arguments

gnutls_mac_algorithm_t algorithm

is the gnutls MAC identifier

int priority

is the priority of the algorithm

gnutls_mac_init_func init

A function which initializes the MAC

gnutls_mac_setkey_func setkey

A function which sets the key of the MAC

gnutls_mac_setnonce_func setnonce

A function which sets the nonce for the mac (may be NULL for common MAC algorithms)

gnutls_mac_hash_func hash

Perform the hash operation

gnutls_mac_output_func output

Provide the output of the MAC

gnutls_mac_deinit_func deinit

A function which deinitializes the MAC

gnutls_mac_fast_func hash_fast

Perform the MAC operation in one go

Overview

This function will register a MAC algorithm to be used by gnutls. Any algorithm registered will override the included algorithms and by convention kernel implemented algorithms have priority of 90 and CPU-assisted of 80. The algorithm with the lowest priority will be used by gnutls.

Deprecated

since 3.7.0 it is no longer possible to override cipher implementation

Returns

GNUTLS_E_SUCCESS on success, otherwise a negative error code.

Since

3.4.0

Releases

6 releases since Debian 9 (Stretch); the text changed 5 times.

  1. 9
  2. 10
  3. 11
  4. 12
  5. 13
  6. Arch

Reporting bugs

Report bugs to <[email protected]>.
Home page: https://www.gnutls.org

From gnutls 3.8.13-3 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.