Question

我已经开发了与websocket兼容的套接字服务器，可以通信用Java和Web制作的应用程序。但是最新的Chrome和Mozilla更新不再允许与websocket的不安全连接。然后，在进行握手和其余协议https://tools.ietf.org/html/rfc6455

之前，我不得不解密服务器收到的字节。

我已经达到以下目标：

从CA签署的证书中获取公共密钥。还有我服务器的私钥
借助Java的Cipher类，我设法使用这些密钥来加密和解密测试字符串

但是我仍然不能做的是在进行握手之前解密从websocket客户端收到的字节。

希望您能帮助我。谢谢

我收到的错误：数据不得超过256个字节

Answer 1

解决了！解密已委托给SSLSocket类。如果有人想在这里执行这些步骤。

将CA颁发的证书和私钥导出到p12文件中

openssl pkcs12 -export -in certificate/path/certificate.crt -inkey /path/privatekey/private.key -out filep12.p12 -name your_domain -CAfile /path/ca.crt -caname your_ca

Java密钥库

keytool -genkey -alias your_alias -keyalg RSA -keystore name_store.jks -keysize 2048

输入密码（您的密码）并确认

keytool -importkeystore -srckeystore name_store.jks -destkeystore name_store.jks -deststoretype pkcs12 -srcstorepass your_password

keytool -delete -alias your_alias -keystore name_store.jks -storepass your_password

keytool -importkeystore -deststorepass your_password -destkeypass your_password -destkeystore name_store.jks -srckeystore filep12.p12 -srcstoretype PKCS12 -srcstorepass your_password -alias your_domain

您的别名不得与your_domain相同或相似，要求密码在每个步骤中都输入相同的密码（your_password），以便解密时不会出现填充错误

java中的类

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.UnrecoverableKeyException;
import java.security.cert.CertificateException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLServerSocketFactory;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.TrustManagerFactory;


public class SServidor {   


public SServidor(){
    try {
        KeyStore keystore = KeyStore.getInstance(KeyStore.getDefaultType());
        File keystrorefile = new File("/path/name_store.jks");
        System.out.println(keystrorefile.getAbsolutePath());
        InputStream keystoreStream = new FileInputStream(keystrorefile);
        char[] passphrase="your_password".toCharArray();            

        keystore.load(keystoreStream, passphrase);
        KeyManagerFactory keyManagerFactory = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
        keyManagerFactory.init(keystore, passphrase);
        makeSSLSocketFactory(keystore, keyManagerFactory);

    } catch (KeyStoreException ex) {
        Logger.getLogger(SServidor.class.getName()).log(Level.SEVERE, null, ex);
    } catch (FileNotFoundException ex) {
        Logger.getLogger(SServidor.class.getName()).log(Level.SEVERE, null, ex);
    } catch (NoSuchAlgorithmException ex) {
        Logger.getLogger(SServidor.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IOException ex) {
        Logger.getLogger(SServidor.class.getName()).log(Level.SEVERE, null, ex);
    } catch (CertificateException ex) {
        Logger.getLogger(SServidor.class.getName()).log(Level.SEVERE, null, ex);
    } catch (UnrecoverableKeyException ex) {
        Logger.getLogger(SServidor.class.getName()).log(Level.SEVERE, null, ex);
    }
}

private void log(Object msj){
    System.out.println(msj.toString());
}

public void makeSSLSocketFactory(KeyStore loadedKeyStore, KeyManagerFactory key){

    try {
        TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
        trustManagerFactory.init(loadedKeyStore);
        SSLContext ctx = SSLContext.getInstance("TLS");            
        ctx.init(key.getKeyManagers(), trustManagerFactory.getTrustManagers(), null);
        SSLServerSocketFactory sslssf = ctx.getServerSocketFactory();
        ServerSocket conexion = sslssf.createServerSocket(your_port);
        SSLSocket cliente=(SSLSocket) conexion.accept();

        cliente.startHandshake();
        InputStream in = cliente.getInputStream();            
        OutputStream out = cliente.getOutputStream();
        int byte_recibido=-1;   

        while(cliente.isConnected() && (byte_recibido=in.read())>-1){
            Integer n=byte_recibido & 0xFF;  
            String s=new String(String.valueOf(Character.toChars(n)));
            log(s);
        }

            out.close();                        
            bin.close();
                    in.close();
            cliente.close();
            conexion.close();


    } catch (NoSuchAlgorithmException ex) {
        Logger.getLogger(SServidor.class.getName()).log(Level.SEVERE, null, ex);
    } catch (KeyStoreException ex) {
        Logger.getLogger(SServidor.class.getName()).log(Level.SEVERE, null, ex);
    } catch (KeyManagementException ex) {
        Logger.getLogger(SServidor.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IOException ex) {
        Logger.getLogger(SServidor.class.getName()).log(Level.SEVERE, null, ex);
    }

} 

}`

其他情况下，与websocket的连接应如下所示：wss：// your_domain：port不得在websocket URL中输入IP地址，必须使用在CA颁发的证书中注册的域来完成< / p>

使用解密的字节，我可以继续进行RFC6455协议。显然，这只是我所做的测试，显然是针对套接字应用程序的，此外，有必要异步处理连接到服务器的客户端。我使用ExecutorService类来做到这一点，但这是另一个主题

握手之前解密从tls上的Websocket客户端收到的字节

1 个答案: