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NAME

       gnutls_x509_privkey_sign_data - API function

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.

       Use gnutls_x509_crt_get_preferred_hash_algorithm() to determine the hash algorithm.

RETURNS

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

DEPRECATED

       Use gnutls_privkey_sign_data().

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.

SEE ALSO

       The full documentation for gnutls is maintained as a Texinfo  manual.   If  the  info  and
       gnutls programs are properly installed at your site, the command

              info gnutls

       should give you access to the complete manual.