NAME¶

gnutls_hmac_init - API function

SYNOPSIS¶

#include <gnutls/gnutls.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 value 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/

COPYRIGHT¶

Copyright © 2008 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.

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.