gnutls_privkey_sign_data - API function

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()

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.

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.

Name

gnutls_privkey_sign_data - API function

Reporting Bugs

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

Returns

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

Since

2.12.0

Synopsis

#include<gnutls/abstract.h>intgnutls_privkey_sign_data(gnutls_privkey_tsigner,gnutls_digest_algorithm_thash,unsignedintflags,constgnutls_datum_t*data,gnutls_datum_t*signature);