使用SSLSocket Java创建应用程序 [英] Create app with SSLSocket Java

问题描述

我想创建一个应用程序使用 SSLSocket ：客户端向服务器发送一个 String ，服务器将大写 String 并发送回客户端以供显示。

SSLServer

  public class SSLServer {
 public static void main（String args []）throws Exception 
 {
 try {
 // Creaet a SSLServersocket 
 SSLServerSocketFactory factory =（SSLServerSocketFactory）SSLServerSocketFactory.getDefault（）; 
 SSLServerSocket sslserversocket =（SSLServerSocket）factory.createServerSocket（1234）; 
 //Tạo1đốitượngSockettừserversocketđlắngnghevàchấpnậnkếtnốitừclient
 SSLSocket sslsocket =（SSLSocket）sslserversocket.accept（）; 
 // Tao cac luong de nhan va gui du lieu cua client 
 DataInputStream is = new DataInputStream（sslsocket.getInputStream（））; 
 PrintStream os = new PrintStream（sslsocket.getOutputStream（））; 
 while（true）// khi dang ket noi voi client 
 {
 // Doc du lieu den 
 String input = is.readUTF（）; 
 String ketqua = input.toUpperCase（）; 
 // Du lieu tra ve 
 os.println（ketqua）; 
} 
} 
 catch（IOException e）
 {
 System.out.print（e）; 
} 
} 
} 
  

SSLClient

 公共类SSLClient {
 public static void main（String args []）
 {
 try 
 {
 // Mo 1客户端套接字服务器voi so cong va dia chi xac dinh 
 SSLSocketFactory factory =（SSLSocketFactory）SSLSocketFactory.getDefault（）; 
 SSLSocket sslsocket =（SSLSocket）factory.createSocket（127.0.0.1，1234）; 
 
 // Tao luong nhan va gui du lieu len server 
 DataOutputStream os = new DataOutputStream（sslsocket.getOutputStream（））; 
 DataInputStream = new DataInputStream（sslsocket.getInputStream（））; 
 
 // Gui du lieu len server 
 String str =helloworld; 
 os.writeBytes（str）; 
 
 // Nhan du lieu da qua xu li tu server ve 
 String responseStr; 
 if（（responseStr = is.readUTF（））！= null）
 {
 System.out.println（responseStr）; 
} 
 
 os.close（）; 
 is.close（）; 
 sslsocket.close（）; 
} 
 catch（UnknownHostException e）
 {
 System.out.println（e.getMessage（））; 
} 
 catch（IOException e）
 {
 System.out.println（e.getMessage（））; 
} 
} 
} 
  

运行时 SSLServer 。它显示以下错误：

  javax.net.ssl.SSLException：没有可用的证书或密钥对应SSL的
密码套件已启用
  

我有搜索并做某些方法但是..你能帮助我吗？这将生成证书：

 $ c> keytool -genkey -keystore yourKEYSTORE -keyalg RSA 
  

输入yourPASSWORD，然后使用ssl启动服务器调试信息（将yourKEYSTORE放入SSLServer.class目录）：

  java -Djavax.net.ssl.keyStore = yourKEYSTORE -Djavax .net.ssl.keyStorePassword = yourPASSWORD -Djava.protocol.handler.pkgs = com.sun.net.ssl.internal.www.protocol -Djavax.net.debug = ssl SSLServer 
  

比启动客户端（将yourKEYSTORE放入SSLClient.class目录）：

  java -Djavax.net.ssl.trustStore = yourKEYSTORE -Djavax.net。 ssl.trustStorePassword = yourPASSWORD SSLClient 
  

I want to create an app use SSLSocket: client send a String to server and server will uppercase that String and send back to client for display.

SSLServer

public class SSLServer {
    public static void main(String args[]) throws Exception
    {
        try{
        //Creaet a SSLServersocket
        SSLServerSocketFactory factory=(SSLServerSocketFactory) SSLServerSocketFactory.getDefault();
        SSLServerSocket sslserversocket=(SSLServerSocket) factory.createServerSocket(1234);
        //Tạo 1 đối tượng Socket từ serversocket để lắng nghe và chấp nhận kết nối từ client
        SSLSocket sslsocket=(SSLSocket) sslserversocket.accept();
        //Tao cac luong de nhan va gui du lieu cua client
        DataInputStream is=new DataInputStream(sslsocket.getInputStream());
        PrintStream os=new PrintStream(sslsocket.getOutputStream());
        while(true)  //khi dang ket noi voi client
        {
            //Doc du lieu den
            String input=is.readUTF();
            String ketqua=input.toUpperCase();
            //Du lieu tra ve
            os.println(ketqua);
        }
        }
        catch(IOException e)
        {
           System.out.print(e);
        }
    }
}

SSLClient

public class SSLClient {
    public static void main(String args[])
    {
        try
        {
        //Mo 1 client socket den server voi so cong va dia chi xac dinh
        SSLSocketFactory factory=(SSLSocketFactory) SSLSocketFactory.getDefault();
        SSLSocket sslsocket=(SSLSocket) factory.createSocket("127.0.0.1",1234);

        //Tao luong nhan va gui du lieu len server
        DataOutputStream os=new DataOutputStream(sslsocket.getOutputStream());
        DataInputStream is=new DataInputStream(sslsocket.getInputStream());

        //Gui du lieu len server
        String str="helloworld";
        os.writeBytes(str);

        //Nhan du lieu da qua xu li tu server ve
        String responseStr;
        if((responseStr=is.readUTF())!=null)
        {
            System.out.println(responseStr);
        }

        os.close();
        is.close();
        sslsocket.close();
        }
        catch(UnknownHostException e)
        {
             System.out.println(e.getMessage());
        }
        catch(IOException e)
        {
            System.out.println(e.getMessage());
        }
    }
}

When run SSLServer. It displays this error:

javax.net.ssl.SSLException: No available certificate or key corresponds 
    to the SSL cipher suites which are enabled

I have search and do some ways but.. Can you help me.

解决方案

This will generate certificate:

keytool -genkey -keystore yourKEYSTORE -keyalg RSA

Enter yourPASSWORD and than start your server with ssl debug information(put yourKEYSTORE into directory with SSLServer.class):

java -Djavax.net.ssl.keyStore=yourKEYSTORE -Djavax.net.ssl.keyStorePassword=yourPASSWORD -Djava.protocol.handler.pkgs=com.sun.net.ssl.internal.www.protocol -Djavax.net.debug=ssl SSLServer

Than start your client(put yourKEYSTORE into directory with SSLClient.class):

java -Djavax.net.ssl.trustStore=yourKEYSTORE -Djavax.net.ssl.trustStorePassword=yourPASSWORD SSLClient

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