gnutls_ocsp_resp_verify — API function


#include <gnutls/ocsp.h>
int gnutls_ocsp_resp_verify( gnutls_ocsp_resp_t resp,
  gnutls_x509_trust_list_t trustlist,
  unsigned int * verify,
  unsigned int flags);


gnutls_ocsp_resp_t resp

should contain a gnutls_ocsp_resp_t structure

gnutls_x509_trust_list_t trustlist

trust anchors as a gnutls_x509_trust_list_t structure

unsigned int * verify

output variable with verification status, an gnutls_ocsp_cert_status_t

unsigned int flags

verification flags, 0 for now.


Verify signature of the Basic OCSP Response against the public key in the certificate of a trusted signer. The trustlist should be populated with trust anchors. The function will extract the signer certificate from the Basic OCSP Response and will verify it against the trustlist . A trusted signer is a certificate that is either in trustlist , or it is signed directly by a certificate in trustlist and has the id−ad−ocspSigning Extended Key Usage bit set.

The output verify variable will hold verification status codes (e.g., GNUTLS_OCSP_VERIFY_SIGNER_NOT_FOUND, GNUTLS_OCSP_VERIFY_INSECURE_ALGORITHM) which are only valid if the function returned GNUTLS_E_SUCCESS.

Note that the function returns GNUTLS_E_SUCCESS even when verification failed. The caller must always inspect the verify variable to find out the verification status.

The flags variable should be 0 for now.


On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative error value.


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