gnutls_x509_crt_get_key_id - Return unique ID of public key’s
int gnutls_x509_crt_get_key_id(gnutls_x509_crt_t crt, unsigned int
flags, unsigned char * output_data, size_t * output_data_size);
Holds the certificate
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)
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 private 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
In case of failure a negative value will be returned, and 0 on success.
Report bugs to <email@example.com>. GnuTLS home page:
http://www.gnu.org/software/gnutls/ General help using GNU software:
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.
The full documentation for gnutls is maintained as a Texinfo manual.
If the info and gnutls programs are properly installed at your site,
should give you access to the complete manual.