I am currently integrating with a system created by a 3rd party. This system requires me to send a request using XML/HTTPS. The 3rd party send me the certificate and I installed it
I use the following code:
using (WebClient client = new WebClient())
{
client.Headers.Add(HttpRequestHeader.ContentType, "text/xml");
System.Text.ASCIIEncoding encoding=new System.Text.ASCIIEncoding();
var response = client.UploadData(address, "POST", encoding.GetBytes(msg));
}
This code returns the following WebException:
The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.
UPDATE Because it's a test server I am working against, the certificate isn't trusted and validation fails... To bypass this in test/debug environment, create a new ServerCertificateValidationCallback
ServicePointManager.ServerCertificateValidationCallback += new System.Net.Security.RemoteCertificateValidationCallback(bypassAllCertificateStuff);
and here is my "fake" callback
private static bool bypassAllCertificateStuff(object sender, X509Certificate cert, X509Chain chain, System.Net.Security.SslPolicyErrors error)
{
return true;
}