Get the Server Certificate from a TLS Connection

See more Socket/SSL/TLS Examples

Demonstrates Socket.GetServerCert, which copies the certificate presented by the remote TLS server into a Cert object for inspection.

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    CkSocket socket = new CkSocket();

    //  Connect to the server using TLS.
    boolean bTls = true;
    int maxWaitMs = 5000;
    success = socket.Connect("example.com",5000,bTls,maxWaitMs);
    if (success == false) {
        System.out.println(socket.lastErrorText());
        return;
        }

    //  Copy the certificate presented by the remote TLS server, then inspect it.  This can be used to
    //  validate the server's identity.
    CkCert cert = new CkCert();
    success = socket.GetServerCert(cert);
    if (success == false) {
        System.out.println(socket.lastErrorText());
        return;
        }

    System.out.println("Server certificate subject: " + cert.subjectCN());
    System.out.println("Issued by: " + cert.issuerCN());
  }
}