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 al-
gorithm, 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 accel-
erator 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: https://www.gnutls.org
COPYRIGHT
Copyright © 2001-2023 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
https://www.gnutls.org/manual/
gnutls 3.8.9 gnutls_hmac_init(3)
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