uest to the client. The certificate returned (if any) is checked. If the verification process fails, the TLS/SSL handshake is immediately terminated with an alert message containing the reason for the verification failure. The behaviour can be controlled by the additional SSL_VERIFY_FAIL_IF_NO_PEER_CERT, SSL_VERIFY_CLIENT_ONCE and SSL_VERIFY_POST_HANDSHAKE flags.</p>

<p><b>Client mode:</b> the server certificate is verified. If the verification process fails, the TLS/SSL handshake is immediately terminated