Question

有人可以告诉我这段代码我做错了什么吗？服务器端似乎正在工作。一旦我运行服务器端的代码，服务器就会等待客户端请求连接。然后当我运行客户端代码时，它会在客户端抛出以下异常：

javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure
    at sun.security.ssl.Alerts.getSSLException(Unknown Source)
    at sun.security.ssl.Alerts.getSSLException(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.recvAlert(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at LoginDialog.doConnectToServer(LoginDialog.java:208)
    at LoginDialog.<init>(LoginDialog.java:67)
    at ClientSideMain.main(ClientSideMain.java:5)
Press any key to continue . . .

以及服务器端的以下异常：

javax.net.ssl.SSLException: Connection has been shutdown: javax.net.ssl.SSLHandshakeException: no cipher suites in common
    at sun.security.ssl.SSLSocketImpl.checkEOF(Unknown Source)
    at sun.security.ssl.AppInputStream.read(Unknown Source)
    at sun.nio.cs.StreamDecoder.readBytes(Unknown Source)
    at sun.nio.cs.StreamDecoder.implRead(Unknown Source)
    at sun.nio.cs.StreamDecoder.read(Unknown Source)
    at java.io.InputStreamReader.read(Unknown Source)
    at java.io.BufferedReader.fill(Unknown Source)
    at java.io.BufferedReader.readLine(Unknown Source)
    at java.io.BufferedReader.readLine(Unknown Source)
    at Talker.recieve(Talker.java:78)
    at CTC.run(CTC.java:49)
    at java.lang.Thread.run(Unknown Source)
Caused by: javax.net.ssl.SSLHandshakeException: no cipher suites in common
    at sun.security.ssl.Alerts.getSSLException(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.fatal(Unknown Source)
    at sun.security.ssl.Handshaker.fatalSE(Unknown Source)
    at sun.security.ssl.Handshaker.fatalSE(Unknown Source)
    at sun.security.ssl.ServerHandshaker.chooseCipherSuite(Unknown Source)
    at sun.security.ssl.ServerHandshaker.clientHello(Unknown Source)
    at sun.security.ssl.ServerHandshaker.processMessage(Unknown Source)
    at sun.security.ssl.Handshaker.processLoop(Unknown Source)
    at sun.security.ssl.Handshaker.process_record(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.writeRecord(Unknown Source)
    at sun.security.ssl.AppOutputStream.write(Unknown Source)
    at sun.security.ssl.AppOutputStream.write(Unknown Source)
    at java.io.DataOutputStream.writeBytes(Unknown Source)
    at Talker.send(Talker.java:58)
    at CTC.send(CTC.java:344)
    at CTC.<init>(CTC.java:31)
    at ServerSide.<init>(ServerSide.java:73)
    at ServerSideMain.main(ServerSideMain.java:5)

服务器端代码

public class ServerSide
{
ServerSocket serverSocket;
Socket regSocket;
Hashtable<String,User> userList;
CTC tempCTC;
File f;
DataInputStream in;
BufferedReader br;

SSLContext sslContext;
KeyManagerFactory keyManagerFactory;
KeyStore keyStore;
char[] keyStorePassphrase;

SSLServerSocketFactory sslServerSocketFactory;
SSLServerSocket sslServerSocket;
SSLSocket sslNormalSocket;

ServerSide()
{
    f = new File("userlist.txt");
    userList = new Hashtable<String, User>();
    loadUsers(f);

    try
    {
        sslContext = SSLContext.getInstance("SSL");
        keyManagerFactory = KeyManagerFactory.getInstance("SunX509");
        keyStore = KeyStore.getInstance("JKS");
        keyStorePassphrase = "passphrase".toCharArray();
        keyStore.load(new FileInputStream("testkeys"), keyStorePassphrase);
        keyManagerFactory.init(keyStore, keyStorePassphrase);
        sslContext.init(keyManagerFactory.getKeyManagers(), null, null);
        sslServerSocketFactory = (SSLServerSocketFactory)SSLServerSocketFactory.getDefault();

        sslServerSocket = (SSLServerSocket)sslServerSocketFactory.createServerSocket(12345);

        try{Thread.sleep(1000);}catch(Exception e){}

        while(true)
        {
            sslNormalSocket = (SSLSocket)sslServerSocket.accept();
            tempCTC = new CTC(sslNormalSocket, userList, f);
        }
    }
    catch(IOException ioe)
    {
        ioe.printStackTrace();
    }
    catch(NoSuchAlgorithmException nsae)
    {
        nsae.printStackTrace();
    }
    catch(KeyStoreException kse)
    {
        kse.printStackTrace();
    }
    catch(CertificateException ce)
    {
        ce.printStackTrace();
    }
    catch(UnrecoverableKeyException uke)
    {
        uke.printStackTrace();
    }
    catch(KeyManagementException kme)
    {
        kme.printStackTrace();
    }
}

客户端代码（发生异常的地方）

private void doConnectToServer()
{
    SSLSocketFactory        sslSocketFactory;
    KeyManagerFactory       keyManagerFactory;
    SSLContext              sslContext;
    KeyStore                keyStore;
    char[]                  keyStorePassphrase;
    SSLSocket               sslSocket;

    try
    {
        Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());

        System.setProperty("javax.net.ssl.trustStore", "samplecacerts");
        System.setProperty("javax.net.ssl.trustStorePassword", "changeit");

        sslContext = SSLContext.getInstance("SSL");
        keyManagerFactory = KeyManagerFactory.getInstance("SunX509");
        keyStore = KeyStore.getInstance("JKS");

        keyStorePassphrase = "passphrase".toCharArray();
        keyStore.load(new FileInputStream("testkeys"), keyStorePassphrase);

        keyManagerFactory.init(keyStore, keyStorePassphrase);
        sslContext.init(keyManagerFactory.getKeyManagers(), null, null);

        sslSocketFactory = sslContext.getSocketFactory();

        sslSocketFactory = (SSLSocketFactory)SSLSocketFactory.getDefault();

        sslSocket = (SSLSocket)sslSocketFactory.createSocket("127.0.0.1", 12345);

        sslSocket.startHandshake(); //line that throws the exception

        cts = new CTS(sslSocket, this);
    }
    catch(Exception e)
    {
        e.printStackTrace();
    }
}

Answer 1

好像你在双方都没有相同的加密方法（服务器/客户端）。

gradient()

确保双方使用相同的内容。

SSLHandshakeException：没有共同的密码套件（JAVA）

1 个答案: