centos man page for 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 structure.

       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.

RETURNS
       Zero or a negative error code on error.

SINCE
       2.10.0

REPORTING BUGS
       Report bugs to <bug-gnutls@gnu.org>.
       General guidelines for reporting bugs: http://www.gnu.org/gethelp/
       GnuTLS home page: http://www.gnu.org/software/gnutls/

COPYRIGHT
       Copyright (C) 2012 Free Software Foundation, Inc..
       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 info and gnutls programs are properly installed at your site,
       the command

	      info gnutls

       should give you access to the complete manual.  As an alternative you may obtain the manual from:

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

gnutls								      3.1.15						       gnutls_hmac_init(3)