"Pragati B via .NET 247" wrote:

> Hi All,
>
> I am new to web service consuming... and so need some help and advice.
>
> We need to consume a web service (by a third party vendor), to get some information. We are using C# on .NET 1.1 and WSE 1.0SP1. The service uses https://. We also need a two-way certification for accessing the data. I have imported the certificate (provided by the vendor) under my personal settings.
>
> Now the problem lies in getting the connection to the service. I am just testing the connectivity by calling their "sayHello()" function. I am doing this in a console based program (for ease of coding).
>
> Below please find my code to access the web service. I am getting the error - "System.Net.WebException: The underlying connection was closed: Could not establish secure channel for SSL/TLS. -->System.ComponentModel.Win32Exception: The message received was unexpected or badly formatted".
>
> I have tried the various options listed in the forums. But no success as of now.
>
> Grateful, if somebody can point me to the correct direction I need to look for getting to the root of this issue. Is there any checklist which I can use to eliminate the problems?
>
> Thanks a lot for the help.
>
> --------------------------------
> From: Pragati B
>
> *********************************************************
> using System;
> using System.Net;
> using System.Reflection;
> using Microsoft.Web.Services;
> using Microsoft.Web.Services.Security;
> using Microsoft.Web.Services.Security.X509;
> using System.Security.Cryptography;
>
>
> namespace Client
> {
>     /// <summary>
>     /// Class for implementing the security policy, so that all the certificates
>     /// can be validated
>     /// </summary>
>     class CertPolicy: ICertificatePolicy
>     {
>         public bool CheckValidationResult(System.Net.ServicePoint srvPoint,
>             System.Security.Cryptography.X509Certificates.X509Certificate Certificate,
>             System.Net.WebRequest request, int certificateProblem)
>         {
>             Console.WriteLine(Certificate.GetName());
>             return true;
>         }
>     }
>
>     /// <summary>
>     /// Class created to keep the connection alive
>     /// </summary>
>     public class SubService : WebReference.WebServiceService
>     {
>         private static PropertyInfo requestPropertyInfo = null;
>
>         public SubService(){}
>
>         protected override System.Net.WebRequest GetWebRequest(Uri uri)
>         {
>             WebRequest request = base.GetWebRequest(uri);
>
>             if (requestPropertyInfo==null)
>                 // Retrieve property info and store it in a static member for optimizing future use
>                 requestPropertyInfo = request.GetType().GetProperty("Request");
>
>             // Retrieve underlying web request
>             HttpWebRequest webRequest = (HttpWebRequest)requestPropertyInfo.GetValue(request, null);
>
>             // Setting KeepAlive
>             webRequest.KeepAlive = false;
>             return request;
>         }
>     }
>
>     /// <summary>
>     /// Main class accessing the service.
>     /// </summary>
>     class AccessClient
>     {
>         /// <summary>
>         /// To obtain the client certificate
>         /// </summary>
>         /// <returns></returns>
>         private static X509SecurityToken GetSecurityToken()
>         {
>             X509SecurityToken securityToken=null;
>             X509Certificate cert12;
>             X509CertificateStore store =  X509CertificateStore.CurrentUserStore(X509CertificateStore.MyStore);
>
>             bool open = store.OpenRead();
>             try
>             {
>                 X509CertificateCollection certs = store.Certificates;
>                 string strcert = null;
>                 foreach(X509Certificate cert1 in certs)
>                 {
>                     strcert = Convert.ToBase64String(cert1.GetKeyIdentifier());
>                 }
>                 byte[] keyIda = Convert.FromBase64String(strcert);
>                 X509CertificateCollection matchingCerts = store.FindCertificateByKeyIdentifier(keyIda);
>                 cert12 = matchingCerts[0];securityToken = new X509SecurityToken(cert12);
>             }
>             catch(Exception ex)
>             {
>                 Console.WriteLine(ex);
>             }
>             return securityToken;
>         }
>
>         /// <summary>
>         /// The main entry point for the application.
>         /// </summary>
>         [STAThread]
>         static void Main(string[] args)
>         {
>             try
>             {
>                 Client.WebSubService service
>                     = new Client.SubService();
>                 service.CookieContainer = new System.Net.CookieContainer();
>                 service.RequestSoapContext.Path.MustUnderstand = false;
>
>                 System.Net.ServicePointManager.CertificatePolicy = new CertPolicy();
>
>                 UsernameToken tkn = new UsernameToken("user", "pwd", PasswordOption.SendHashed);
>                 service.RequestSoapContext.Security.Tokens.Add(tkn);
>                 service.RequestSoapContext.Security.Elements.Add(new Signature(tkn));
>                 X509SecurityToken signatureToken = GetSecurityToken();
>                 if(signatureToken == null)
>                 {
>                     Console.WriteLine("Error in getting the certificate token.");
>                 }
>                 else
>                 {
>                     SoapContext requestContext = service.RequestSoapContext;
>                     requestContext.Timestamp.Ttl = 60000;
>                     requestContext.Security.Tokens.Add(signatureToken);
>                     requestContext.Security.Elements.Add(new Signature(signatureToken));
>                    
>                     Console.WriteLine("Saying Hello...");
>                     Console.WriteLine(service.sayHello());    // <<<=========== exception comes here
>                 }
>             }
>             catch(System.Exception ex)
>             {
>                 Console.WriteLine(ex);
>             }
>         }
>     }
> }
>
> -----------------------
> Posted by a user from .NET 247 (http://www.dotnet247.com/)
>
> <Id>T0AXnYEnZkeO9wCmPX+gRg==</Id>
>