gnutls_x509_privkey_sign_data (3) Linux Manual Page
gnutls_x509_privkey_sign_data – API function
Synopsis
#include <gnutls/compat.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.
Use gnutls_x509_crt_get_preferred_hash_algorithm() to determine the hash algorithm.
Returns
On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative error value.Deprecated
Use gnutls_privkey_sign_data().Reporting Bugs
Report bugs to <bugs [at] gnutls.org>.Home page: http://www.gnutls.org
Copyright
Copyright © 2001-2014 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.