CentOS 7.0 - man page for gnutls_fingerprint (centos section 3)
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gnutls_fingerprint(3) gnutls gnutls_fingerprint(3)
gnutls_fingerprint - API function
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 print-
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.
On success, GNUTLS_E_SUCCESS (0) is returned, otherwise an error code is returned.
Report bugs to <firstname.lastname@example.org>.
General guidelines for reporting bugs: http://www.gnu.org/gethelp/
GnuTLS home page: http://www.gnu.org/software/gnutls/
Copyright (C) 2012 Free Software Foundation, Inc..
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, the command
should give you access to the complete manual. As an alternative you may obtain the man-
gnutls 3.1.15 gnutls_fingerprint(3)
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