gnutls_x509_privkey_sign_data

Section: gnutls (3)
Updated: 2.8.5
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NAME

gnutls_x509_privkey_sign_data - sign data using the private key

SYNOPSIS

#include <gnutls/x509.h>

int gnutls_x509_privkey_sign_data(gnutls_x509_privkey_t key, gnutls_digest_algorithm_t digest, unsigned int flags, const gnutls_datum_t * data, void * signature, size_t * signature_size);

ARGUMENTS

gnutls_x509_privkey_t key: Holds the key
gnutls_digest_algorithm_t digest: should be MD5 or SHA1
unsigned int flags: should be 0 for now
const gnutls_datum_t * data: holds the data to be signed
void * signature: will contain the signature
size_t * signature_size: holds the size of signature (and will be replaced by the new size)

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 SHA-1 for the DSA keys.

If the buffer provided is not long enough to hold the output, then *signature_size is updated and GNUTLS_E_SHORT_MEMORY_BUFFER will be returned.

RETURNS

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

REPORTING BUGS

Report bugs to <bug-gnutls@gnu.org>. GnuTLS home page: http://www.gnu.org/software/gnutls/ General help using GNU software: http://www.gnu.org/gethelp/

COPYRIGHT

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.