gnutls_hmac_fast(3) — Linux manual page


gnutls_hmac_fast(3)                gnutls                gnutls_hmac_fast(3)

NAME         top

       gnutls_hmac_fast - API function

SYNOPSIS         top

       #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 *

ARGUMENTS         top

       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         top

       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         top

       Zero or a negative error code on error.

SINCE         top


REPORTING BUGS         top

       Report bugs to <>.
       Home page:

COPYRIGHT         top

       Copyright © 2001-2019 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         top

       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 

COLOPHON         top

       This page is part of the GnuTLS (GnuTLS Transport Layer Security
       Library) project.  Information about the project can be found at 
       ⟨⟩.  If you have a bug report for this manual
       page, send it to  This page was obtained from the
       tarball gnutls-3.6.9.tar.xz fetched from
       ⟨⟩ on 2020-09-18.  If you discover
       any rendering problems in this HTML version of the page, or you
       believe there is a better or more up-to-date source for the page, or
       you have corrections or improvements to the information in this
       COLOPHON (which is not part of the original manual page), send a mail

gnutls                              3.6.9                gnutls_hmac_fast(3)