NAME

       gnutls_crypto_register_mac - API function

SYNOPSIS

       #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

DESCRIPTION

       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.

RETURNS

       GNUTLS_E_SUCCESS on success, otherwise a negative error code.

SINCE

       3.4.0

REPORTING BUGS

       Report bugs to <bugs@gnutls.org>.
       Home page: http://www.gnutls.org

COPYRIGHT

       Copyright © 2001-2021 Free Software Foundation, Inc., and others.
       Copying and distribution of this file, with or without modification, are permitted in  any
       medium without royalty provided the copyright notice and this notice are preserved.

SEE ALSO

       The   full   documentation  for  gnutls  is  maintained  as  a  Texinfo  manual.   If  the
       /usr/share/doc/gnutls/ directory does not contain the HTML form visit

       http://www.gnutls.org/manual/