自定义绑定和TransportWithMessageCredential

Question

我有这个：

BasicHttpBinding myB = new BasicHttpBinding();
myB.Security.Mode = BasicHttpSecurityMode.TransportWithMessageCredential;
myB.Security.Message.ClientCredentialType = BasicHttpMessageCredentialType.Certificate;
myB.Security.Transport.ClientCredentialType = HttpClientCredentialType.Certificate;

我会申请（没有配置）：

var bind = new CustomBinding();

我该怎么办？