java实现 SSL双向认证

关键字: ssl 实现技术：
JSSE（Java Security Socket Extension）
是Sun为了解决在Internet上的实现安全信息传输的解决方案。它实现了SSL和TSL（传输层安全）协议。在JSSE中包含了数据加密，服务器验证，消息完整性和客户端验证等技术。通过使用JSSE，可以在Client和Server之间通过TCP/IP协议安全地传输数据。




为了实现消息认证。
Server需要：
1）KeyStore: 其中保存服务端的私钥
2）Trust KeyStore:其中保存客户端的授权证书
Client需要：
1）KeyStore：其中保存客户端的私钥
2）Trust KeyStore：其中保存服务端的授权证书



使用Java自带的keytool命令，去生成这样信息文件：

1）生成服务端私钥，并且导入到服务端KeyStore文件中

















































2）根据私钥，导出服务端证书









3）将服务端证书，导入到客户端的Trust KeyStore中







采用同样的方法，生成客户端的私钥，客户端的证书，并且导入到服务端的Trust KeyStore中
1）keytool -genkey -alias clientkey -keystore kclient.keystore
2）keytool -export -alias clientkey -keystore kclient.keystore -file client.crt
3）keytool -import -alias clientkey -file client.crt -keystore tserver.keystore







Server：



Java代码
1.package ssl;  
2. 
3. 
4.import java.io.BufferedInputStream;  
5.import java.io.BufferedOutputStream;  
6.import java.io.FileInputStream;  
7.import java.io.InputStream;  
8.import java.io.OutputStream;  
9.import java.net.Socket;  
10.import java.security.KeyStore;  
11. 
12.import javax.net.ssl.KeyManagerFactory;  
13.import javax.net.ssl.SSLContext;  
14.import javax.net.ssl.SSLServerSocket;  
15.import javax.net.ssl.TrustManagerFactory;  
16. 
17./** 
18. * 
19. * @author Leo 
20. */ 
21.public class Server implements Runnable{  
22. 
23.    private static final int    DEFAULT_PORT                    = 7777;  
24. 
25.    private static final String SERVER_KEY_STORE_PASSWORD       = "123456";  
26.    private static final String SERVER_TRUST_KEY_STORE_PASSWORD = "123456";  
27. 
28.    private SSLServerSocket     serverSocket;  
29. 
30.    /** 
31.     * 启动程序 
32.     *  
33.     * @param args 
34.     */ 
35.    public static void main(String[] args) {  
36.        Server server = new Server();  
37.        server.init();  
38.        Thread thread = new Thread(server);  
39.        thread.start();  
40.    }  
41. 
42.    public synchronized void start() {  
43.        if (serverSocket == null) {  
44.            System.out.println("ERROR");  
45.            return;  
46.        }  
47.        while (true) {  
48.            try {  
49.                Socket s = serverSocket.accept();  
50.                InputStream input = s.getInputStream();  
51.                OutputStream output = s.getOutputStream();  
52. 
53.                BufferedInputStream bis = new BufferedInputStream(input);  
54.                BufferedOutputStream bos = new BufferedOutputStream(output);  
55. 
56.                byte[] buffer = new byte[20];  
57.                bis.read(buffer);  
58.                System.out.println("------receive:--------"+new String(buffer).toString());  
59. 
60.                bos.write("yes".getBytes());  
61.                bos.flush();  
62. 
63.                s.close();  
64.            } catch (Exception e) {  
65.                System.out.println(e);  
66.            }  
67.        }  
68.    }  
69.    public void init() {  
70.        try {  
71.            SSLContext ctx = SSLContext.getInstance("SSL");  
72. 
73.            KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509");  
74.            TrustManagerFactory tmf = TrustManagerFactory.getInstance("SunX509");  
75. 
76.            KeyStore ks = KeyStore.getInstance("JKS");  
77.            KeyStore tks = KeyStore.getInstance("JKS");  
78. 
79.            ks.load(new FileInputStream("src/ssl/kserver.keystore"), SERVER_KEY_STORE_PASSWORD.toCharArray());  
80.            tks.load(new FileInputStream("src/ssl/tserver.keystore"), SERVER_TRUST_KEY_STORE_PASSWORD.toCharArray());  
81. 
82.            kmf.init(ks, SERVER_KEY_STORE_PASSWORD.toCharArray());  
83.            tmf.init(tks);  
84. 
85.            ctx.init(kmf.getKeyManagers(), tmf.getTrustManagers(), null);  
86. 
87.            serverSocket = (SSLServerSocket) ctx.getServerSocketFactory().createServerSocket(DEFAULT_PORT);  
88.            serverSocket.setNeedClientAuth(true);   
89.        } catch (Exception e) {  
90.            System.out.println(e);  
91.        }  
92.    }  
93. 
94.    public void run() {  
95.        // TODO Auto-generated method stub  
96.        start();  
97.    }  
98.} 
package ssl;


import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
import java.security.KeyStore;

import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLServerSocket;
import javax.net.ssl.TrustManagerFactory;

/**
*
* @author Leo
*/
public class Server implements Runnable{

    private static final int    DEFAULT_PORT                    = 7777;

    private static final String SERVER_KEY_STORE_PASSWORD       = "123456";
    private static final String SERVER_TRUST_KEY_STORE_PASSWORD = "123456";

    private SSLServerSocket     serverSocket;

    /**
     * 启动程序
     *
     * @param args
     */
    public static void main(String[] args) {
        Server server = new Server();
        server.init();
Thread thread = new Thread(server);
thread.start();
    }

    public synchronized void start() {
        if (serverSocket == null) {
            System.out.println("ERROR");
            return;
        }
        while (true) {
            try {
                Socket s = serverSocket.accept();
                InputStream input = s.getInputStream();
                OutputStream output = s.getOutputStream();

                BufferedInputStream bis = new BufferedInputStream(input);
                BufferedOutputStream bos = new BufferedOutputStream(output);

                byte[] buffer = new byte[20];
                bis.read(buffer);
                System.out.println("------receive:--------"+new String(buffer).toString());

                bos.write("yes".getBytes());
                bos.flush();

                s.close();
            } catch (Exception e) {
                System.out.println(e);
            }
        }
    }
    public void init() {
        try {
            SSLContext ctx = SSLContext.getInstance("SSL");

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

            KeyStore ks = KeyStore.getInstance("JKS");
            KeyStore tks = KeyStore.getInstance("JKS");

            ks.load(new FileInputStream("src/ssl/kserver.keystore"), SERVER_KEY_STORE_PASSWORD.toCharArray());
            tks.load(new FileInputStream("src/ssl/tserver.keystore"), SERVER_TRUST_KEY_STORE_PASSWORD.toCharArray());

            kmf.init(ks, SERVER_KEY_STORE_PASSWORD.toCharArray());
            tmf.init(tks);

            ctx.init(kmf.getKeyManagers(), tmf.getTrustManagers(), null);

            serverSocket = (SSLServerSocket) ctx.getServerSocketFactory().createServerSocket(DEFAULT_PORT);
            serverSocket.setNeedClientAuth(true);
        } catch (Exception e) {
            System.out.println(e);
        }
    }

public void run() {
// TODO Auto-generated method stub
start();
}
}


Client：

Java代码
1.package ssl;  
2. 
3.import java.io.BufferedInputStream;  
4.import java.io.BufferedOutputStream;  
5.import java.io.FileInputStream;  
6.import java.io.IOException;  
7.import java.io.InputStream;  
8.import java.io.OutputStream;  
9.import java.security.KeyStore;  
10. 
11.import javax.net.ssl.KeyManagerFactory;  
12.import javax.net.ssl.SSLContext;  
13.import javax.net.ssl.SSLSocket;  
14.import javax.net.ssl.TrustManagerFactory;  
15. 
16./** 
17. * SSL Client 
18. *  
19. * @author Leo 
20. */ 
21.public class Client {  
22. 
23.    private static final String DEFAULT_HOST                    = "127.0.0.1";  
24.    private static final int    DEFAULT_PORT                    = 7777;  
25. 
26.    private static final String CLIENT_KEY_STORE_PASSWORD       = "123456";  
27.    private static final String CLIENT_TRUST_KEY_STORE_PASSWORD = "123456";  
28. 
29.    private SSLSocket           sslSocket;  
30. 
31.    /** 
32.     * 启动客户端程序 
33.     *  
34.     * @param args 
35.     */ 
36.    public static void main(String[] args) {  
37.       Client client = new Client();  
38.        client.init();  
39.        client.process();  
40.    }  
41. 
42.   
43.    public void process() {  
44.        if (sslSocket == null) {  
45.            System.out.println("ERROR");  
46.            return;  
47.        }  
48.        try {  
49.            InputStream input = sslSocket.getInputStream();  
50.            OutputStream output = sslSocket.getOutputStream();  
51. 
52.            BufferedInputStream bis = new BufferedInputStream(input);  
53.            BufferedOutputStream bos = new BufferedOutputStream(output);  
54. 
55.            bos.write("1234567890".getBytes());  
56.            bos.flush();  
57. 
58.            byte[] buffer = new byte[20];  
59.            bis.read(buffer);  
60.            System.out.println(new String(buffer));  
61. 
62.            sslSocket.close();  
63.        } catch (IOException e) {  
64.            System.out.println(e);  
65.        }  
66.    }  
67. 
68. 
69.    public void init() {  
70.        try {  
71.            SSLContext ctx = SSLContext.getInstance("SSL");  
72. 
73.            KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509");  
74.            TrustManagerFactory tmf = TrustManagerFactory.getInstance("SunX509");  
75. 
76.            KeyStore ks = KeyStore.getInstance("JKS");  
77.            KeyStore tks = KeyStore.getInstance("JKS");  
78. 
79.            ks.load(new FileInputStream("src/ssl/kclient.keystore"), CLIENT_KEY_STORE_PASSWORD.toCharArray());  
80.            tks.load(new FileInputStream("src/ssl/tclient.keystore"), CLIENT_TRUST_KEY_STORE_PASSWORD.toCharArray());  
81. 
82.            kmf.init(ks, CLIENT_KEY_STORE_PASSWORD.toCharArray());  
83.            tmf.init(tks);  
84. 
85.            ctx.init(kmf.getKeyManagers(), tmf.getTrustManagers(), null);  
86. 
87.            sslSocket = (SSLSocket) ctx.getSocketFactory().createSocket(DEFAULT_HOST, DEFAULT_PORT);  
88.        } catch (Exception e) {  
89.            System.out.println(e);  
90.        }  
91.    }  
92. 
93.} 
package ssl;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.security.KeyStore;

import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.TrustManagerFactory;

/**
* SSL Client
*
* @author Leo
*/
public class Client {

    private static final String DEFAULT_HOST                    = "127.0.0.1";
    private static final int    DEFAULT_PORT                    = 7777;

    private static final String CLIENT_KEY_STORE_PASSWORD       = "123456";
    private static final String CLIENT_TRUST_KEY_STORE_PASSWORD = "123456";

    private SSLSocket           sslSocket;

    /**
     * 启动客户端程序
     *
     * @param args
     */
    public static void main(String[] args) {
       Client client = new Client();
        client.init();
        client.process();
    }


    public void process() {
        if (sslSocket == null) {
            System.out.println("ERROR");
            return;
        }
        try {
            InputStream input = sslSocket.getInputStream();
            OutputStream output = sslSocket.getOutputStream();

            BufferedInputStream bis = new BufferedInputStream(input);
            BufferedOutputStream bos = new BufferedOutputStream(output);

            bos.write("1234567890".getBytes());
            bos.flush();

            byte[] buffer = new byte[20];
            bis.read(buffer);
            System.out.println(new String(buffer));

            sslSocket.close();
        } catch (IOException e) {
            System.out.println(e);
        }
    }


    public void init() {
        try {
            SSLContext ctx = SSLContext.getInstance("SSL");

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

            KeyStore ks = KeyStore.getInstance("JKS");
            KeyStore tks = KeyStore.getInstance("JKS");

            ks.load(new FileInputStream("src/ssl/kclient.keystore"), CLIENT_KEY_STORE_PASSWORD.toCharArray());
            tks.load(new FileInputStream("src/ssl/tclient.keystore"), CLIENT_TRUST_KEY_STORE_PASSWORD.toCharArray());

            kmf.init(ks, CLIENT_KEY_STORE_PASSWORD.toCharArray());
            tmf.init(tks);

            ctx.init(kmf.getKeyManagers(), tmf.getTrustManagers(), null);

            sslSocket = (SSLSocket) ctx.getSocketFactory().createSocket(DEFAULT_HOST, DEFAULT_PORT);
        } catch (Exception e) {
            System.out.println(e);
        }
    }

}



启动Server



启动Client，发送信息。



Server接收如下：正确解密







返回Client信息，如下：











如此，就完成了服务端和客户端之间的基于身份认证的交互。

client采用kclient.keystore中的clientkey私钥进行数据加密，发送给server。
server采用tserver.keystore中的client.crt证书（包含了clientkey的公钥）对数据解密，如果解密成功，证明消息来自client，进行逻辑处理。

server采用kserver.keystore中的serverkey私钥进行数据加密，发送给client。
client采用tclient.keystore中的server.crt证书（包含了serverkey的公钥）对数据解密，如果解密成功，证明消息来自server，进行逻辑处理。

如果过程中，解密失败，那么证明消息来源错误。不进行逻辑处理。这样就完成了双向的身份认证。