by the negotiated ciphersuites and extensions. Equivalent to
B<SSL_OP_ENABLE_KTLS>.
+B<StrictCertCheck>: Enable strict certificate checking. Equivalent to
+setting B<SSL_CERT_FLAG_TLS_STRICT> with SSL_CTX_set_cert_flags().
+
=item B<VerifyMode>
The B<value> argument is a comma separated list of flags to set.