gnutls_fingerprint - calculate the fingerprint of the given data
int gnutls_fingerprint(gnutls_digest_algorithm_t algo, const
gnutls_datum_t * data, void * result, size_t * result_size);
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.
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.
On success, GNUTLS_E_SUCCESS (0) is returned, otherwise an error code
Report bugs to <email@example.com>. GnuTLS home page:
http://www.gnu.org/software/gnutls/ General help using GNU software:
Copyright © 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.
The full documentation for gnutls is maintained as a Texinfo manual.
If the info and gnutls programs are properly installed at your site,
should give you access to the complete manual.