@deftypefun {int} {gnutls_ocsp_resp_verify_direct} (gnutls_ocsp_resp_t @var{resp}, gnutls_x509_crt_t @var{issuer}, unsigned int * @var{verify}, unsigned int @var{flags})
@var{resp}: should contain a @code{gnutls_ocsp_resp_t} type
@var{issuer}: certificate believed to have signed the response
@var{verify}: output variable with verification status, an @code{gnutls_ocsp_verify_reason_t}
@var{flags}: verification flags from @code{gnutls_certificate_verify_flags}
Verify signature of the Basic OCSP Response against the public key
in the @code{issuer} certificate.
The output @code{verify} variable will hold verification status codes
(e.g., @code{GNUTLS_OCSP_VERIFY_SIGNER_NOT_FOUND} ,
@code{GNUTLS_OCSP_VERIFY_INSECURE_ALGORITHM} ) which are only valid if the
function returned @code{GNUTLS_E_SUCCESS} .
Note that the function returns @code{GNUTLS_E_SUCCESS} even when
verification failed. The caller must always inspect the @code{verify} variable to find out the verification status.
The @code{flags} variable should be 0 for now.
@strong{Returns:} On success, @code{GNUTLS_E_SUCCESS} (0) is returned, otherwise a
negative error value.
@end deftypefun