C＃客户端通过SSL连接到Java服务器 [英] C# client connecting to a Java server over SSL

问题描述

作为一个团队项目，我需要从C＃客户端连接到Java 6.5 SSL服务器，但是当我到达stream.AuthenticateAsClient行时，它会挂起。

As a team project I need to connect from a C# client to a Java 6.5 SSL server, however when I get to the stream.AuthenticateAsClient line it hangs.

C＃连接代码

public static void connect(string server, Int32 port)
{
  try
  {
    client = new TcpClient(server, port);
    stream = new SslStream(client.GetStream(), false);
    stream.AuthenticateAsClient("MyCNfield");
...
...

如果我连接到 https://mail.google.com 并将 MyCNfield 设置为 mail.google.com ，它运行正常，所以我认为它是Java方面。

If I connect to something like https://mail.google.com and set MyCNfield to mail.google.com, it works fine, so I think it is the Java side.

Java Init部分是：

The Java Init section is:

public void initSSL() throws IOException, KeyStoreException, NoSuchAlgorithmException,
                             CertificateException, UnrecoverableKeyException, KeyManagementException {
    char[] passphrase = "scared".toCharArray();
    System.out.println(java.security.KeyStore.getDefaultType());
    boolean handshakedone=false;

    KeyStore keystore1 = KeyStore.getInstance("jks");
    FileInputStream fis = new FileInputStream("C:\\\\temp\\\\work.jks");
    keystore1.load(fis, passphrase);
    fis.close();
    KeyStore ksTrust = KeyStore.getInstance("jks");
    FileInputStream fis2 =  new FileInputStream("C:\\\\temp\\\\work.jks");
    ksTrust.load(fis2, passphrase);

    KeyManagerFactory kmf =    KeyManagerFactory.getInstance("SunX509");

    // KeyManager's decide which key material to use.
    kmf.init(keystore1, passphrase);

    // TrustManager's decide whether to allow connections.
    TrustManagerFactory tmf =   TrustManagerFactory.getInstance("SunX509");
    tmf.init(ksTrust);

    SSLContext sslContext = SSLContext.getInstance("TLS");
    sslContext.init( kmf.getKeyManagers(), tmf.getTrustManagers(), null);

    SSLServerSocketFactory sslserversocketfactory =(SSLServerSocketFactory) sslContext.getServerSocketFactory();
    sslserversocket =(SSLServerSocket) sslserversocketfactory.createServerSocket(2443);
    sslserversocket.setUseClientMode(false);

    //Context conte
    ServerSocketFactory serversocketfactory =(ServerSocketFactory) sslContext.getServerSocketFactory();

    //  serverSocket = new ServerSocket(2443);
    System.out.println("OK we are set up");
}

它被调用：

sslsocket = (SSLSocket) sslserversocket.accept();

并继续，即使连接未经完全验证。

and continues on, even though the connection was not fully authenticated.

需要更改以解决此问题：JKS的证书 MyCNfield 由我创建的CA签名。如何在我的C＃中将证书链导入我的私有CA，或者如何使用Java和C＃强制使用自签名证书，并抛弃我当前的JKS？

What needs to be changed to fix this: the JKS has a cert MyCNfield that is signed by a CA that I created. How do I either import the cert chain to my private CA in my C#, or how do I excange self-signed certs with Java and C#, and just throw out my current JKS?

推荐答案

您需要使用RemoteCertificateValidationCallback回调机制来提供证书身份验证。你不应该关闭这个问题，这是许多人可能有的问题。这个答案是谷歌搜索的第一次点击之一，这得益于stackoverflow的优秀搜索引擎优化，所以它可能会导致人们走错路。

You need to use the RemoteCertificateValidationCallback callback mechanism to provide certificate authentication. You shouldn't have closed the question, this is a valid question that many people may have. This answer was one of the first hits on a google search, thanks to the great SEO of stackoverflow, so it may lead people down the wrong path.

使用 RemoteCertificateValidationCallback 回调。

private readonly bool allowSsl;

// callback used to validate the certificate in an SSL conversation
private static bool ValidateRemoteCertificate(
object sender,
    X509Certificate certificate,
    X509Chain chain,
    SslPolicyErrors policyErrors
)
{
    if (allowSsl)
    {
        // allow any certificate...
        return true;
    }
    else
    {
        return policyErrors == SslPolicyErrors.None;
    }
}

以下是 TCPClient ：

TcpClient client = new TcpClient(machineName,443);
Console.WriteLine("Client connected.");

// Create an SSL stream, specifying the callback above.
SslStream sslStream = new SslStream(
    client.GetStream(), 
    false, 
    new RemoteCertificateValidationCallback (ValidateRemoteCertificate), 
    null
    );

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