在c＃中使用带有文件和密钥的X509Certificate [英] Using X509Certificate with file and key in c#

问题描述

我已将证书和密码提供给接受ssl连接的服务器。我尝试连接到这台服务器，但验证失败，主要是因为我不知道如何使用我给出的文件和密码。

I have given certificate and password to a server that accepts ssl connection. I tried to make a connection to this server but authentication fails, well mainly because I dont know how to use that file and password that I was given.

这是我的代码：

    X509Certificate certificate = new X509Certificate(
        @"c:\mySrvKeystore", KEY_PASSWORD);

    public static bool ValidateCertificate(
        object sender,
        X509Certificate certificate,
        X509Chain chain,
        SslPolicyErrors errors)
    {
        if (errors == SslPolicyErrors.None)
            return true;

        Console.WriteLine("Certificate error: {0}", errors);
        return false;
    }

    public void RunClient(string address, int port)
    {
        Console.WriteLine("Starting client...");
        var client = new TcpClient(address, port);


        Console.WriteLine("Client connected.");


        var stream = new SslStream(client.GetStream(),false,
            ValidateCertificate, null);

        try
        {
            stream.AuthenticateAsClient(address);

            Console.WriteLine(stream.IsAuthenticated ? "Client authenticated." : "Client is not authenticated.");

            //TODO constantly read from server!
        }
        catch (AuthenticationException ae)
        {
            Console.WriteLine("Exception occured: {0}", ae.Message);

            if (ae.InnerException != null)
            {
                Console.WriteLine("Inner exception: {0}", ae.InnerException.Message);
            }

            Console.WriteLine("Failed to authenticate! closing the client...");

            client.Close();

            return;
        }
        catch (Exception ex)
        {
            Console.WriteLine("General exception occured {0}", ex.Message);
            client.Close();
            return;
        }
    }

正如您所看到的，没有代码我的代码以某种方式告诉服务器（TcpClient或SSLStream）我有这个文件和密钥！

So as you can see, there is no code in my code that somehow tells the server (either TcpClient or SSLStream) that I do have this file and key!

我有一个连接到服务器的javacode没有问题，但是我没能将它转换为c＃。任何帮助都会很棒！

I have a javacode that connects to server with no problem, but I failed to convert it to c# yet. Any helps would be great!

    String keyPassword = "123456";
    // String keyPassword = "importkey";

    try {
        KeyManagerFactory keyManagerFactory;

        keyManagerFactory = KeyManagerFactory.getInstance("SunX509");
        KeyStore keyStore = KeyStore.getInstance("JKS");
        InputStream keyInput = new FileInputStream("c:\\mySrvKeystore");
        keyStore.load(keyInput, keyPassword.toCharArray());
        keyInput.close();
        keyManagerFactory.init(keyStore, keyPassword.toCharArray());

        SSLContext sc = SSLContext.getInstance("SSL");
        sc.init(keyManagerFactory.getKeyManagers(), trustAllCerts, new java.security.SecureRandom());
        SSLSocketFactory sslsocketfactory = sc.getSocketFactory();
        this.sslsocket = (SSLSocket) sslsocketfactory.createSocket(host, port);

    } catch (java.security.NoSuchAlgorithmException e) {
        e.printStackTrace();
    } catch (java.security.KeyManagementException e) {
        e.printStackTrace();
    } catch (java.security.KeyStoreException e) {
        e.printStackTrace();
    } catch (java.security.cert.CertificateException e) {
        e.printStackTrace();
    } catch (java.security.UnrecoverableKeyException e) {
        e.printStackTrace();
    } finally {}
}

public void run() {
    try {
        InputStream inputstream = sslsocket.getInputStream();
        InputStreamReader inputstreamreader = new InputStreamReader(inputstream);
        BufferedReader bufferedreader = new BufferedReader(inputstreamreader);

        OutputStream outputstream = System.out;
        OutputStreamWriter outputstreamwriter = new OutputStreamWriter(outputstream);
        BufferedWriter bufferedwriter = new BufferedWriter(outputstreamwriter);

        //get text from server and stuff...no deal!

更新

根据 gtrig 将密钥转换为p12后，问题现在是 AutheneticateAsClient 方法中的IOException：

After converting the key to p12 according to gtrig the problem now is IOException in AutheneticateAsClient method here:

        try
        {
            var certificate = new X509Certificate2(@"d:\mySrvKeystore.p12", "123456");


            X509Certificate2[] X509Certificates = {certificate};
            var certsCollection = new X509CertificateCollection(X509Certificates);

            //IO EXCEPTION HERE-->
            stream.AuthenticateAsClient(address, certsCollection, SslProtocols.Ssl2, false);
            Console.WriteLine(stream.IsAuthenticated ? "Client authenticated." : "Client is not authenticated.");

            //TODO constantly read from server!
        }

当我使用 SSlProtocols.Default 错误是： RemoteCertificateNameMismatch，RemoteCertificateChainErrors

推荐答案

您应该将AuthenticateAsClient与证书列表一起使用：

You should use AuthenticateAsClient with a list of certificates:

X509Certificate[] X509Certificates = { certificate };
X509CertificateCollection certsCollection = new X509CertificateCollection(X509Certificates);

sslStream.AuthenticateAsClient(address, certsCollection, SslProtocols.Default, false);

为避免证书错误：
更改

To avoid cert errors: change

  public static bool ValidateCertificate(
   object sender,
   X509Certificate certificate,
   X509Chain chain,
   SslPolicyErrors errors)
   {
        if (errors == SslPolicyErrors.None)
            return true;
        if (certificate != null)
        {
            string SendingCertificateName = "";
            //List<string> Subject = CommaText(certificate.Subject); // decode commalist
            // SendingCertificateName = ExtractNameValue(Subject, "CN"); // get the CN= value
            report = string.Format(CultureInfo.InvariantCulture, "certificatename : {0}, SerialNumber: {1}, {2}, {3}", certificate.Subject, certificate.GetSerialNumberString(), SendingCertificateName, ServerName);
            Console.WriteLine(report);
         }

         Console.WriteLine("Certificate error: {0}", errors);
         int allow = AllowPolicyErrors << 1;  // AllowPolicyErrors property allowing you to pass certain errors
         return (allow & (int)sslPolicyErrors) == (int)sslPolicyErrors;  // or just True if you dont't mind.
    }

这篇关于在c＃中使用带有文件和密钥的X509Certificate的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！