System [00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 00] 1.0.3300.0 1.0.5000.0 2.0.0.0 4.0.0.0 Gtk# is thread aware, but not thread safe; See the <link location="node:gtk-sharp/programming/threads">Gtk# Thread Programming</link> for details. The interface is used to provide custom security certificate validation for an application. The default policy is to allow valid certificates, as well as valid certificates that have expired. To change this policy, implement the interface with a different policy, and then assign that policy to . uses the Security Support Provider Interface (SSPI). For more information, see the SSPI documentation on MSDN. Validates a server certificate. Method 1.0.5000.0 2.0.0.0 4.0.0.0 System.Boolean The method implements the application certificate validation policy. The method can examine the , , , and parameters to determine whether the certificate should be honored. The parameter is a Security Support Provider Interface (SSPI) status code. For more information, see the SSPI documentation on MSDN. Validates a server certificate. true if the certificate should be honored; otherwise, false. The that will use the certificate. The certificate to validate. The request that received the certificate. The problem that was encountered when using the certificate.