@deftypefun {int} {gnutls_x509_crt_set_key} (gnutls_x509_crt_t @var{crt}, gnutls_x509_privkey_t @var{key})
@var{crt}: a certificate of type @code{gnutls_x509_crt_t} 

@var{key}: holds a private key

This function will set the public parameters from the given
private key to the certificate.

To export the public key (i.e., the SubjectPublicKeyInfo part), check
@code{gnutls_pubkey_import_x509()} .

@strong{Returns:} On success, @code{GNUTLS_E_SUCCESS}  (0) is returned, otherwise a
negative error value.
@end deftypefun