Problem Decrypting a text file using OpenPGP

Question

I am new in java cryptography. We have a file from vendor which needs to be decrypted. I am using the code below which gives me error after the bolded comment line. Below the code are the error messages that I get.
Can anyone give me any assistance in telling me what is the problem.
Thank you,
Ed
package cryptix.openpgp.examples;
import cryptix.message.EncryptedMessage;
import cryptix.message.KeyBundleMessage;
import cryptix.message.LiteralMessage;
import cryptix.message.Message;
import cryptix.message.MessageException;
import cryptix.message.MessageFactory;
import cryptix.message.NotEncryptedToParameterException;
import cryptix.openpgp.PGPSignedMessage;
import cryptix.pki.KeyBundle;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.security.NoSuchAlgorithmException;
import java.security.UnrecoverableKeyException;
import java.util.Collection;
public class Decrypt {
public static void main(String[] args) {
java.security.Security.addProvider(
new cryptix.jce.provider.CryptixCrypto() );
java.security.Security.addProvider(
new cryptix.openpgp.provider.CryptixOpenPGP() );
KeyBundle bundle = null;
MessageFactory mf = null;
try {
FileInputStream in = new FileInputStream("secretkey.asc");
mf = MessageFactory.getInstance("OpenPGP");
Collection msgs = mf.generateMessages(in);
KeyBundleMessage kbm = (KeyBundleMessage)msgs.iterator().next();
bundle = kbm.getKeyBundle();
in.close();
} catch (IOException ioe) {
System.err.println("IOException... You did remember to run the "+
"GenerateAndWriteKey example first, right?");
ioe.printStackTrace();
System.exit(-1);
} catch (NoSuchAlgorithmException nsae) {
System.err.println("Cannot find the OpenPGP MessageFactory. "+
"This usually means that the Cryptix OpenPGP provider is not "+
"installed correctly.");
nsae.printStackTrace();
System.exit(-1);
} catch (MessageException me) {
System.err.println("Reading keybundle failed.");
me.printStackTrace();
System.exit(-1);
EncryptedMessage em = null;
try {
FileInputStream in = new FileInputStream("C:\\Java\\enc_dec\\pgptestin.pgp");
Collection msgs = mf.generateMessages(in);
em = (EncryptedMessage)msgs.iterator().next();
in.close();
} catch (IOException ioe) {
System.err.println("IOException... You did remember to run the "+
"Encrypt example first, right?");
ioe.printStackTrace();
System.exit(-1);
} catch (MessageException me) {
System.err.println("Reading message failed.");
me.printStackTrace();
System.exit(-1);
try {
     // System.out.println(em);
      // if fails after the below statement
Message msg = em.decrypt(bundle,"password".toCharArray());
PGPSignedMessage pmsg = (PGPSignedMessage)msg;
LiteralMessage lmsg = (LiteralMessage)pmsg.getContents();
FileOutputStream out = new FileOutputStream("C:\\Java\\enc_dec\\pgptestout.txt");
out.write(lmsg.getTextData().getBytes());
out.close();
} catch (NotEncryptedToParameterException netpe) {
System.err.println("Not encrypted to this key.");
netpe.printStackTrace();
System.exit(-1);
} catch (UnrecoverableKeyException uke) {
System.err.println("Invalid passphrase.");
uke.printStackTrace();
System.exit(-1);
} catch (MessageException me) {
System.err.println("Decrypting message failed.");
me.printStackTrace();
System.exit(-1);
} catch (IOException ioe) {
          System.err.println("Writing the decrypted message failed.");
          ioe.printStackTrace();
          System.exit(-1);
Here are the error messages:
Exception in thread "main" java.lang.RuntimeException: NYI
     at cryptix.jce.provider.elgamal.ElGamalCipher.engineGetParameters(ElGamalCipher.java:120)
     at javax.crypto.Cipher.a(DashoA12275)
     at javax.crypto.Cipher.init(DashoA12275)
     at javax.crypto.Cipher.init(DashoA12275)
     at cryptix.openpgp.algorithm.PGPElGamal.decrypt(PGPElGamal.java:612)
     at cryptix.openpgp.packet.PGPPublicKeyEncryptedSessionKeyPacket.decrypt(PGPPublicKeyEncryptedSessionKeyPacket.java:189)
     at cryptix.openpgp.provider.PGPEncryptedMessageImpl.decrypt(PGPEncryptedMessageImpl.java:186)
     at cryptix.openpgp.provider.PGPEncryptedMessageImpl.decrypt(PGPEncryptedMessageImpl.java:315)
     at cryptix.openpgp.examples.Decrypt.main(Decrypt.java:118)
Message was edited by:
eidasharif
Message was edited by:
eidasharif
Message was edited by:
eidasharif
Message was edited by:
eidasharif
Message was edited by:
eidasharif
Message was edited by:
eidasharif
Message was edited by:
eidasharif
null

Answer 1

You have to download and install something called "Unlimited strength jurisdiction policy files 5.0", is the solution por the NYI (Not Yet implemented) problem. It worked in my case (you can download the file from Sun, and read the readme to know how to install it)