suse man page for gnutls_fingerprint

gnutls_fingerprint(3)						      gnutls						     gnutls_fingerprint(3)

NAME
       gnutls_fingerprint - calculate the fingerprint of the given data

SYNOPSIS
       #include <gnutls/gnutls.h>

       int gnutls_fingerprint(gnutls_digest_algorithm_t algo, const gnutls_datum_t * data, void * result, size_t * result_size);

ARGUMENTS
       gnutls_digest_algorithm_t algo
		   is a digest algorithm

       const gnutls_datum_t * data
		   is the data

       void * result
		   is the place where the result will be copied (may be null).

       size_t * result_size
		   should hold the size of the result. The actual size of the returned result will also be copied there.

DESCRIPTION
       This  function will calculate a fingerprint (actually a hash), of the given data.  The result is not printable data.  You should convert it
       to hex, or to something else printable.

       This is the usual way to calculate a fingerprint of an X.509 DER encoded certificate.  Note however that the fingerprint of an  OpenPGP	is
       not just a hash and cannot be calculated with this function.

RETURNS
       On success, GNUTLS_E_SUCCESS (0) is returned, otherwise an error code is returned.

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 (C) 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.

gnutls								       2.8.6						     gnutls_fingerprint(3)