SSL_get_verify_result - get result of peer certificate verification

#include <openssl/ssl.h>
long SSL_get_verify_result(const SSL *ssl);

SSL_get_verify_result() returns the result of the verification of the X509 certificate presented by the peer, if any.

SSL_get_verify_result() can only return one error code while the verification of a certificate can fail because of many reasons at the same time. Only the last verification error that occurred during the processing is available from SSL_get_verify_result().

The verification result is part of the established session and is restored when a session is reused.

If no peer certificate was presented, the returned result code is X509_V_OK. This is because no verification error occurred, it does however not indicate success. SSL_get_verify_result() is only useful in connection with SSL_get_peer_certificate(3).

The following return values can currently occur:

The verification succeeded or no peer certificate was presented.
Documented in openssl-verify(1).

ssl(7), SSL_set_verify_result(3), SSL_get_peer_certificate(3), openssl-verify(1)

Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at

2022-11-01 3.0.7