@deftypefun {int} {gnutls_x509_spki_get_rsa_pss_params} (gnutls_x509_spki_t @var{spki}, gnutls_digest_algorithm_t * @var{dig}, unsigned int * @var{salt_size})
@var{spki}: the SubjectPublicKeyInfo structure

@var{dig}: if non-NULL, it will hold the digest algorithm

@var{salt_size}: if non-NULL, it will hold the salt size

This function will get the public key algorithm parameters
of RSA-PSS type.

@strong{Returns:} zero if the parameters are present or a negative
value on error.

@strong{Since:} 3.6.0
@end deftypefun