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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 (C) 2001- 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 no-
       tice and	this notice are	preserved.

SEE ALSO
       The full	documentation for gnutls is maintained as  a  Texinfo  manual.
       If the /usr/local/share/doc/gnutls/ directory does not contain the HTML
       form visit

       https://www.gnutls.org/manual/

gnutls				    3.6.15		   gnutls_hmac_init(3)

NAME | SYNOPSIS | ARGUMENTS | DESCRIPTION | RETURNS | SINCE | REPORTING BUGS | COPYRIGHT | SEE ALSO

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