gnutls_hmac_init

gnutls_hmac_init(3)                  gnutls                  gnutls_hmac_init(3)



NAME
       gnutls_hmac_init - API function

SYNOPSIS
       #include <gnutls/crypto.h>

       int gnutls_hmac_init(gnutls_hmac_hd_t * dig, gnutls_mac_algorithm_t
       algorithm, const void * key, size_t keylen);

ARGUMENTS
       gnutls_hmac_hd_t * dig
                   is a gnutls_hmac_hd_t type

       gnutls_mac_algorithm_t algorithm
                   the HMAC algorithm to use

       const void * key
                   the key to be used for encryption

       size_t keylen
                   the length of the key

DESCRIPTION
       This function will initialize an context that can be used to produce a
       Message Authentication Code (MAC) of data.  This will effectively use the
       current crypto backend in use by gnutls or the cryptographic accelerator
       in use.

       Note that despite the name of this function, it can be used for other MAC
       algorithms than HMAC.

RETURNS
       Zero or a negative error code on error.

SINCE
       2.10.0

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


COPYRIGHT
       Copyright © 2001-2016 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/

gnutls                               3.4.11                  gnutls_hmac_init(3)