Java: Overriding function to disable SSL certificate check

Question

The web service is rest over SSL and it has self signed certificate, hosted in remote system.I have already created a client accessing that web service. This is done by adding the certificate to the key store programatically.

Now I heard that, it is not necessary to add certificate to key store for accesing a self signed web service. Instead we can disable the certificate check by overriding some methods. Is this true? Which are those methods? Please help.

Answer 1

This should be sufficient. I use this when testing code against testing and staging servers where we don't have properly signed certificates. However, you should really really strongly consider getting a valid SSL certificate on your production server. Nobody wants to be wiretapped and have their privacy violated.

SSLContext sc = SSLContext.getInstance("TLS");
sc.init(null, new TrustManager[] { new TrustAllX509TrustManager() }, new java.security.SecureRandom());
HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
HttpsURLConnection.setDefaultHostnameVerifier( new HostnameVerifier(){
    public boolean verify(String string,SSLSession ssls) {
        return true;
    }
});

And this.

import javax.net.ssl.X509TrustManager;
import java.security.cert.X509Certificate;

/**
 * DO NOT USE IN PRODUCTION!!!!
 * 
 * This class will simply trust everything that comes along.
 * 
 * @author frank
 *
 */
public class TrustAllX509TrustManager implements X509TrustManager {
    public X509Certificate[] getAcceptedIssuers() {
        return new X509Certificate[0];
    }

    public void checkClientTrusted(java.security.cert.X509Certificate[] certs,
            String authType) {
    }

    public void checkServerTrusted(java.security.cert.X509Certificate[] certs,
            String authType) {
    }

}

Best of luck!

===UPDATE===

I just wanted to point out that there's a service called Let's Encrypt which automates the process of generating and setting up SSL/TLS certificates recognised by virtually everybody, and it's absolutely free!