Linux manual pages Section 3  

Name

gnutls_x509_privkey_get_key_id — Return unique ID of the key's parameters

Synopsis

#include <gnutls/x509.h>
int gnutls_x509_privkey_get_key_id( gnutls_x509_privkey_t key,
  unsigned int flags,
  unsigned char * output_data,
  size_t * output_data_size);
 

ARGUMENTS

gnutls_x509_privkey_t key

Holds the key

unsigned int flags

should be 0 for now

unsigned char * output_data

will contain the key ID

size_t * output_data_size

holds the size of output_data (and will be replaced by the actual size of parameters)

DESCRIPTION

This function will return a unique ID the depends on the public key parameters. This ID can be used in checking whether a certificate corresponds to the given key.

If the buffer provided is not long enough to hold the output, then *output_data_size is updated and GNUTLS_E_SHORT_MEMORY_BUFFER will be returned. The output will normally be a SHA−1 hash output, which is 20 bytes.

RETURNS

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

REPORTING BUGS

Report bugs to <[email protected]>. GnuTLS home page: http://www.gnu.org/software/gnutls/ General help using GNU software: http://www.gnu.org/gethelp/

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.

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.