using System.IO;

using System.Net;

using System.Security.Cryptography.X509Certificates;

​

namespace ClientCertInvocation

{

    class Program

    {

        static void Main(string[] args)

        {

            // Create a web request that points to our SSL-enabled client certificate required web site

            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create("https://my.local.machine:440/");

            // Use the X509Store class to get a handle to the local certificate stores. "My" is the "Personal" store.

            X509Store store = new X509Store(StoreName.My, StoreLocation.LocalMachine);

​

            // Open the store to be able to read from it.

            store.Open(OpenFlags.ReadOnly); 

​

            // Use the X509Certificate2Collection class to get a list of certificates that match our criteria (in this case, we should only pull back one).

            X509Certificate2Collection collection = store.Certificates.Find(X509FindType.FindBySubjectName, "MyClientCert", true);

​

            // Associate the certificates with the request

            request.ClientCertificates = collection;

​

            // Make the web request

            HttpWebResponse response = (HttpWebResponse)request.GetResponse();

​

            // Output the stream to a file.

            Stream stream = response.GetResponseStream();

            using (var fileStream = File.Create("copy.html"))

            {

                stream.CopyTo(fileStream);

            }

​

        }

    }

}

​