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gnutls_fingerprint(3)               gnutls               gnutls_fingerprint(3)

NAME
       gnutls_fingerprint - API function

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
       certificate 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 <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_fingerprint(3)