NAME¶

gnutls_privkey_sign_data - API function

SYNOPSIS¶

#include <gnutls/abstract.h>

int gnutls_privkey_sign_data(gnutls_privkey_t signer, gnutls_digest_algorithm_t hash, unsigned int flags, const gnutls_datum_t * data, gnutls_datum_t * signature);

ARGUMENTS¶

gnutls_privkey_t signer

Holds the key

gnutls_digest_algorithm_t hash

should be a digest algorithm

unsigned int flags

Zero or one of gnutls_privkey_flags_t

const gnutls_datum_t * data

holds the data to be signed

gnutls_datum_t * signature

will contain the signature allocated with gnutls_malloc()

DESCRIPTION¶

This function will sign the given data using a signature algorithm supported by the private key. Signature algorithms are always used together with a hash functions. Different hash functions may be used for the RSA algorithm, but only the SHA family for the DSA keys.

You may use gnutls_pubkey_get_preferred_hash_algorithm() to determine the hash algorithm.

RETURNS¶

On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative error value.

SINCE¶

2.12.0

REPORTING BUGS¶

Report bugs to <bugs@gnutls.org>.
Home page: https://www.gnutls.org

COPYRIGHT¶

Copyright © 2001-2023 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/share/doc/gnutls/ directory does not contain the HTML form visit

https://www.gnutls.org/manual/