A strange applet selection fail problem

Question

Hi, All. I am trying to implement the RSA encryption and decryption using rmi. I use the RSA implementation sample code in the previous post and the RMIPurse sample code in the package (3.0.2 classic ) for testing. However, after I add some initialization codes into the PurseImpl class, I got the "applet selection failed" error.
The code that I modified based on RMIPurse
import javacard.framework.ISO7816;
import javacard.framework.ISOException;
import javacard.security.CryptoException;
import javacard.security.KeyBuilder;
import javacard.security.KeyPair;
import javacard.security.RSAPrivateCrtKey;
import javacard.security.RSAPublicKey;
import javacardx.crypto.Cipher;
public class PurseImpl extends CardRemoteObject implements Purse {
    private short balance = 0;
    private byte[] number;
     // crypto variables
     final static byte GETSET_CLA = (byte) 0x85;
     final static byte CRYPT_CLA = (byte) 0x00;
     // Instruction set for SimpleString
     final static byte SET = (byte) 0x10;
     final static byte GET = (byte) 0x20;
     final static byte SELECT = (byte) 0xA4;
     // This buffer contains the string data on the card
     byte TheBuffer[];
     // globals
     RSAPrivateCrtKey rsa_PrivateCrtKey;
     RSAPublicKey rsa_PublicKey;
     KeyPair rsa_KeyPair;
     Cipher cipherRSA;
     final short dataOffset = (short) ISO7816.OFFSET_CDATA;
    public PurseImpl() {
        super(); // export it
        number = new byte[5];
          // crypto
        TheBuffer = new byte[100];
        // generate own rsa_keypair
        try {
               rsa_KeyPair = new KeyPair(KeyPair.ALG_RSA_CRT, KeyBuilder.LENGTH_RSA_1024);
               rsa_KeyPair.genKeyPair();
               rsa_PublicKey = (RSAPublicKey) rsa_KeyPair.getPublic();
               rsa_PrivateCrtKey = (RSAPrivateCrtKey) rsa_KeyPair.getPrivate();
               cipherRSA = Cipher.getInstance(Cipher.ALG_RSA_PKCS1, false);
          catch (CryptoException e) {
            short sw = (short) 0x9100;
            sw |= e.getReason();
            ISOException.throwIt(sw);
    }I got:
Receiving initial reference... java.rmi.RemoteException: Applet selection failed, SW = 6d00
That's strange. because without the initialization codes in try/catch block, there is no problem to select the applet. Can anyone help?

Answer 1

I have exactly the same problem when calling (trying to) any applets method. Where are these parameters to be turned on?