@deftypefun {int} {gnutls_x509_spki_init} (gnutls_x509_spki_t * @var{spki})
@var{spki}: A pointer to the type to be initialized

This function will initialize a SubjectPublicKeyInfo structure used
in PKIX. The structure is used to set additional parameters
in the public key information field of a certificate.

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

@strong{Since:} 3.6.0
@end deftypefun