gnutls_fingerprint − API function


, const gnutls_datum_t * int
gnutls_fingerprint(gnutls_digest_algorithm_t algo

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

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

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 <>.
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