TrustAllCertificatesCallback被忽略

Question

給定一個url或服務器名稱，如何使用powershell或.net庫來下載Web服務器正在使用的（過期）證書，然後將其保存到文件或將其導入到我的證書存儲中？

謝謝！

我已經取得了進步，我得到這個遠在這個問題上：

static class Program 
    { 
     static void Main() 
     { 
      ServicePointManager.ServerCertificateValidationCallback = TrustAllCertificatesCallback; 
      var tcpclient = new TcpClient("remote.example.com", 443); 
      var tcpstream = tcpclient.GetStream(); 
      var sslstream = new SslStream(tcpstream); 
      sslstream.AuthenticateAsClient("remote.example.com"); 
      X509Certificate rc = sslstream.RemoteCertificate; 
      Console.WriteLine(rc.ToString()); 
      Console.ReadLine(); 
     } 

     public static bool TrustAllCertificatesCallback(
      object sender, X509Certificate cert, 
      X509Chain chain, System.Net.Security.SslPolicyErrors errors) 
     { 
      return true; 
     } 
    } 

現在，當我運行這個程序，我上AuthenticateAsClient線的的AuthenticationException，它說「的遠程證書是根據無效驗證程序「。我在return true;上運行了一個斷點，它從來不叫TrustAllCertificatesCallback。我認爲程序集有權限或配置問題，有誰知道如何解決它？

Answer 1

我還沒有做過這樣的事情，但看着例子，我想我可以看到什麼是錯的。試試這個代碼：

static class Program 
{ 
    static void Main() 
    { 
     var tcpclient = new TcpClient("remote.example.com", 443); 
     var tcpstream = tcpclient.GetStream(); 
     var sslstream = new SslStream(tcpstream, false, new RemoteCertificateValidationCallback (TrustAllCertificatesCallback)); 
     sslstream.AuthenticateAsClient("remote.example.com"); 
     X509Certificate rc = sslstream.RemoteCertificate; 
     Console.WriteLine(rc.ToString()); 
     Console.ReadLine(); 
    } 

    public static bool TrustAllCertificatesCallback(
     object sender, X509Certificate cert, 
     X509Chain chain, System.Net.Security.SslPolicyErrors errors) 
    { 
     return true; 
    } 
}