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>.
COPYRIGHT
Copyright © 2008 Free Software Foundation.
Permission is granted to make and distribute verbatim copies of this
manual provided the copyright notice and this permission notice are
preserved on all copies.
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.