Hi,

I wand to make the SSL connection to https my website( maybe webservice).
Of course I use Certificate and Key Exchange to secure Client/Server connection
But I want only my program to access to https my website

So I call
private X509Certificate2 verifyCert = null;

string defaultGatewayCa = "-----BEGIN CERTIFICATE-----\nUE\AUIfkDWGqpg2QR\n-----END CERTIFICATE-----\n";
this.verifyCert = Util.GetCertFromstring(defaultGatewayCa);
ServicePointManager.ServerCertificateValidationCallback += new System.Net.Security.RemoteCertificateValidationCallback(ServerCertificateValidation);

private bool ServerCertificateValidation(Object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)    {
          return verifyCert.Verify();
}

Now the question is:
I verify Server Certificate signature by using CA certificate ( I assume that this CA has signed Server Certificate)
So do I need X509Chain to veryfy CA certificate up to Root CA?
I don't think I need to use X509Chain, but what purpose X509Chain parameter in delegate function is about?