Custom SSLSocketFactory Implementation to enable tls 1.1 and tls 1.2 for android 4.1 (16+)

TLSSocketFactory.java

package net.cogindo.ssl;

import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;

import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;

/**
 * @author fkrauthan
 */
public class TLSSocketFactory extends SSLSocketFactory {

    private SSLSocketFactory internalSSLSocketFactory;

    public TLSSocketFactory() throws KeyManagementException, NoSuchAlgorithmException {
        SSLContext context = SSLContext.getInstance("TLS");
        context.init(null, null, null);
        internalSSLSocketFactory = context.getSocketFactory();
    }

    @Override
    public String[] getDefaultCipherSuites() {
        return internalSSLSocketFactory.getDefaultCipherSuites();
    }

    @Override
    public String[] getSupportedCipherSuites() {
        return internalSSLSocketFactory.getSupportedCipherSuites();
    }
    
    @Override
    public Socket createSocket() throws IOException {
        return enableTLSOnSocket(internalSSLSocketFactory.createSocket());
    }

    @Override
    public Socket createSocket(Socket s, String host, int port, boolean autoClose) throws IOException {
        return enableTLSOnSocket(internalSSLSocketFactory.createSocket(s, host, port, autoClose));
    }

    @Override
    public Socket createSocket(String host, int port) throws IOException, UnknownHostException {
        return enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port));
    }

    @Override
    public Socket createSocket(String host, int port, InetAddress localHost, int localPort) throws IOException, UnknownHostException {
        return enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port, localHost, localPort));
    }

    @Override
    public Socket createSocket(InetAddress host, int port) throws IOException {
        return enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port));
    }

    @Override
    public Socket createSocket(InetAddress address, int port, InetAddress localAddress, int localPort) throws IOException {
        return enableTLSOnSocket(internalSSLSocketFactory.createSocket(address, port, localAddress, localPort));
    }

    private Socket enableTLSOnSocket(Socket socket) {
        if(socket != null && (socket instanceof SSLSocket)) {
            ((SSLSocket)socket).setEnabledProtocols(new String[] {"TLSv1.1", "TLSv1.2"});
        }
        return socket;
    }
}

@SahilKashyap did you get another way of doing it, since your app was rejected by play store? I need to enable TLS 1.2 support for my apps having API 16+

How to implement these SSLSocketFactory to webview in android?

You maniac, this code solves my issue EXACTLY. Thank you!!!

Works on API 19! You are a genius!

for retrofit.. please check this https://gist.github.com/Kishanjvaghela/3eb249e6bd52ba6b2b858af674fc7c3d

i am using httpclient and using above TLSSocketFactory , and calling by getting httpclient and only display tlsv1.0, but i only need to use tlsv1.2, Could you please help where i am doing wrong.
TLSSocketFactoryNew .java

public class TLSSocketFactoryNew extends SSLSocketFactory {

    private SSLSocketFactory internalSSLSocketFactory;
    

    public TLSSocketFactoryNew(SSLSocketFactory socketFactory) {
        internalSSLSocketFactory=socketFactory;
    }

    @Override
    public String[] getDefaultCipherSuites() {
        return internalSSLSocketFactory.getDefaultCipherSuites();
    }

    @Override
    public String[] getSupportedCipherSuites() {
        return internalSSLSocketFactory.getSupportedCipherSuites();
    }

    @Override
    public Socket createSocket(Socket s, String host, int port, boolean autoClose) throws IOException {
        return enableTLSOnSocket(internalSSLSocketFactory.createSocket(s, host, port, autoClose));
    }

    @Override
    public Socket createSocket(String host, int port) throws IOException, UnknownHostException {
        return enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port));
    }

    @Override
    public Socket createSocket(String host, int port, InetAddress localHost, int localPort) throws IOException, UnknownHostException {
        return enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port, localHost, localPort));
    }

    @Override
    public Socket createSocket(InetAddress host, int port) throws IOException {
        return enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port));
    }

    @Override
    public Socket createSocket(InetAddress address, int port, InetAddress localAddress, int localPort) throws IOException {
        return enableTLSOnSocket(internalSSLSocketFactory.createSocket(address, port, localAddress, localPort));
    }

    /*
     * Utility methods
     */

    private static Socket enableTLSOnSocket(Socket socket) {
        if (socket != null && (socket instanceof SSLSocket)
                && isTLSServerEnabled((SSLSocket) socket)) { // skip the fix if server doesn't provide there TLS version
            ((SSLSocket)socket).setEnabledProtocols(new String[] {"TLSv1.2"});
        }
        return socket;
    }

    private static boolean isTLSServerEnabled(SSLSocket sslSocket) {
        System.out.println("isTLSServerEnabled :: " + sslSocket.getSupportedProtocols().toString());
        for (String protocol : sslSocket.getSupportedProtocols()) {
            if (protocol.equals("TLSv1.2")) {
                return true;
            }
        }
        return false;
    }
}

Getting httpclient in httppost method to execute httpclient.

private CloseableHttpClient getNewClient() {
    CloseableHttpClient httpclient=null;
    SSLContext sslContext = null ;
    try {
      sslContext = SSLContext.getInstance("TLSv1.2");
      TrustManager[] trustManagers = new TrustManager[] { new TrustManagerManipulator() };
      sslContext.init(null, trustManagers, new SecureRandom());
      SSLSocketFactory sslSocketFactory = new TLSSocketFactoryNew(sslContext.getSocketFactory());
      httpclient = HttpClients.custom()
              .setSSLSocketFactory((LayeredConnectionSocketFactory) sslSocketFactory)
              .build();

    } catch (NoSuchAlgorithmException e) {
      e.printStackTrace();
    } catch (KeyManagementException e) {
      e.printStackTrace();
    }

    return httpclient;
  }

Min Api : 19

compile files('libs/httpclient-4.5.5.jar')  
compile files('libs/httpcore-4.4.11.jar'):

Thanks.

Thanks, Works on API 19!

alguien sabe como o donde se coloca el conscrypt