Name

gnutls_hmac_init — API function

Synopsis

#include <gnutls/crypto.h>
int gnutls_hmac_init( gnutls_hmac_hd_t * dig,
  gnutls_digest_algorithm_t algorithm,
  const void * key,
  size_t keylen);
 

ARGUMENTS

gnutls_hmac_hd_t * dig

is a gnutls_hmac_hd_t structure.

gnutls_digest_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>. GnuTLS home page: http://www.gnu.org/software/gnutls/ General help using GNU software: http://www.gnu.org/gethelp/

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.

COPYRIGHT

Copyright © 2012 Free Software Foundation.

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.