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gnutls_hmac_fast(3)                 gnutls                 gnutls_hmac_fast(3)

NAME
       gnutls_hmac_fast - API function

SYNOPSIS
       #include <gnutls/crypto.h>

       int gnutls_hmac_fast(gnutls_mac_algorithm_t algorithm, const void *
       key, size_t keylen, const void * ptext, size_t ptext_len, void *
       digest);

ARGUMENTS
       gnutls_mac_algorithm_t algorithm
                   the hash algorithm to use

       const void * key
                   the key to use

       size_t keylen
                   the length of the key

       const void * ptext
                   the data to hash

       size_t ptext_len
                   the length of data to hash

       void * digest
                   is the output value of the hash

DESCRIPTION
       This convenience function will hash the given data and return output on
       a single call. Note, this call will not work for MAC algorithms that
       require nonce (like UMAC or GMAC).

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
       notice 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                               3.7.9                 gnutls_hmac_fast(3)