[resolved]Insert parameter with JCIDE

[andromeda92]

Hi,
is it possible to install parameters to applet using JCIDE instead of using gp.exe or GPShell.exe,
it is in order to test with the JVM (JAVACOS Virtual contact).

Thanks for your help.

Edit1 :
I have found, when i install applet on debug, i can put parameter, but i have an error:

my parameter is 31323334FFFFFFFF

Code: Select all

Install Applet error: Install Applet failed. Send: 80 E6 0C 00 22 05 31 32 33 34 35 06 31 32 33 34 35 00 06 31 32 33 34 35 00 01 00 0A C9 08 31 32 33 34 FF FF FF FF 00, Recv: 69 85.

any idea ?

[andromeda92]

I do not understand but now it works, I can check the pin code that I put in parameter, and change it.

CODE:

Code: Select all

package PackageWallet ;

import javacard.framework.*;

public class AppletWallet extends Applet {

    /* constants declaration */
    
    // code of CLA byte in the command APDU header
    final static byte Wallet_CLA =(byte)0xB0;
    
    // codes of INS byte in the command APDU header
    final static byte VERIFY = (byte) 0x20;
    final static byte CREDIT = (byte) 0x30;
    final static byte DEBIT = (byte) 0x40;
    final static byte GET_BALANCE = (byte) 0x50;
    final static byte CHANGE = (byte) 0x60;
    
    // maximum balance
    final static short MAX_BALANCE = 0x7FFF;
    // maximum transaction amount
    final static byte MAX_TRANSACTION_AMOUNT = 127;
    
    // maximum number of incorrect tries before the
    // PIN is blocked
    final static byte PIN_TRY_LIMIT =(byte)0x03;
    // maximum size PIN
    final static byte MAX_PIN_SIZE =(byte)16;
    final static byte MIN_PIN_SIZE = (byte)4;
    
    // signal that the PIN verification failed
    final static short SW_VERIFICATION_FAILED =
    0x6300;
    // signal the the PIN validation is required
    // for a credit or a debit transaction
    final static short SW_PIN_VERIFICATION_REQUIRED =
                                            0x6301;
	// pin is locked
	final static short SW_CARD_IS_LOCKED = 0x6304; 
	final static short SW_NEW_PIN_TOO_LONG = 0x6307;
	final static short SW_NEW_PIN_TOO_SHORT = 0x6308;  
	                                        
    // signal invalid transaction amount
    // amount > MAX_TRANSACTION_AMOUNT or amount < 0
    final static short SW_INVALID_TRANSACTION_AMOUNT = 0x6A83;
    
    // signal that the balance exceed the maximum
    final static short SW_EXCEED_MAXIMUM_BALANCE = 0x6A84;
    // signal the the balance becomes negative
    final static short SW_NEGATIVE_BALANCE = 0x6A85;
    
    /* instance variables declaration */
    OwnerPIN pin;
    short balance;
    
    private AppletWallet (byte[] bArray,short bOffset,byte bLength) {
      
        // It is good programming practice to allocate
        // all the memory that an applet needs during
        // its lifetime inside the constructor
        pin = new OwnerPIN(PIN_TRY_LIMIT,   MAX_PIN_SIZE);
        
        byte iLen = bArray[bOffset]; // aid length
        bOffset = (short) (bOffset+iLen+1);
        byte cLen = bArray[bOffset]; // info length
        bOffset = (short) (bOffset+cLen+1);
        byte aLen = bArray[bOffset]; // applet data length
        
	pin = new OwnerPIN(PIN_TRY_LIMIT, MAX_PIN_SIZE);
	pin.update(bArray, (short)(bOffset + 1), aLen);
	// Above command causes error.
				
	register();
    
    } // end of the constructor
    
    public static void install(byte[] bArray, short bOffset, byte bLength) {
        // create a Wallet applet instance
        new AppletWallet(bArray, bOffset, bLength);
    } // end of install method
    
    public boolean select() {
        
        // The applet declines to be selected
        // if the pin is blocked.
        if ( pin.getTriesRemaining() == 0 )
           return false;
        
        return true;
        
    }// end of select method
    
    public void deselect() {
        
        // reset the pin value
        pin.reset();
        
    }
    	
  
    public void process(APDU apdu) {
        
        // APDU object carries a byte array (buffer) to
        // transfer incoming and outgoing APDU header
        // and data bytes between card and CAD
        
        // At this point, only the first header bytes
        // [CLA, INS, P1, P2, P3] are available in
        // the APDU buffer.
        // The interface javacard.framework.ISO7816
        // declares constants to denote the offset of
        // these bytes in the APDU buffer
        
        byte[] buffer = apdu.getBuffer();
        // check SELECT APDU command
        
        if (apdu.isISOInterindustryCLA()) {
            if (buffer[ISO7816.OFFSET_INS] == (byte)(0xA4)) {
                return;
            } else {
                ISOException.throwIt (ISO7816.SW_CLA_NOT_SUPPORTED);
            }
        }
            
        // verify the reset of commands have the
        // correct CLA byte, which specifies the
        // command structure
        if (buffer[ISO7816.OFFSET_CLA] != Wallet_CLA)
            ISOException.throwIt(ISO7816.SW_CLA_NOT_SUPPORTED);
        
        switch (buffer[ISO7816.OFFSET_INS]) {
        case GET_BALANCE:
            getBalance(apdu);
            return;
        case DEBIT:
            debit(apdu);
            return;
        case CREDIT:
            credit(apdu);
            return;
        case VERIFY:
            verify(apdu);
            return;
        case CHANGE:
            change(apdu);
            return;
        default:
            ISOException.throwIt(ISO7816.SW_INS_NOT_SUPPORTED);
        }
        
    }   // end of process method
    
    private void credit(APDU apdu) {
    
        // access authentication
        if ( ! pin.isValidated() )
            ISOException.throwIt(SW_PIN_VERIFICATION_REQUIRED);
        
        byte[] buffer = apdu.getBuffer();
        
        // Lc byte denotes the number of bytes in the
        // data field of the command APDU
        byte numBytes = buffer[ISO7816.OFFSET_LC];
        
        // indicate that this APDU has incoming data
        // and receive data starting from the offset
        // ISO7816.OFFSET_CDATA following the 5 header
        // bytes.
        byte byteRead =
            (byte)(apdu.setIncomingAndReceive());
        
        // it is an error if the number of data bytes
        // read does not match the number in Lc byte
        if ( ( numBytes != 1 ) || (byteRead != 1) )
            ISOException.throwIt(ISO7816.SW_WRONG_LENGTH);
        
        // get the credit amount
        byte creditAmount = buffer[ISO7816.OFFSET_CDATA];
        
        // check the credit amount
        if ( ( creditAmount > MAX_TRANSACTION_AMOUNT)
             || ( creditAmount < 0 ) )
            ISOException.throwIt(SW_INVALID_TRANSACTION_AMOUNT);
        
        // check the new balance
        if ( (short)( balance + creditAmount)  > MAX_BALANCE )
           ISOException.throwIt(SW_EXCEED_MAXIMUM_BALANCE);
        
        // credit the amount
        balance = (short)(balance + creditAmount);
    
    } // end of deposit method
    
    private void debit(APDU apdu) {
    
        // access authentication
        if ( ! pin.isValidated() )
            ISOException.throwIt(SW_PIN_VERIFICATION_REQUIRED);
        
        byte[] buffer = apdu.getBuffer();
        
        byte numBytes =
            (byte)(buffer[ISO7816.OFFSET_LC]);
        
        byte byteRead =
            (byte)(apdu.setIncomingAndReceive());
        
        if ( ( numBytes != 1 ) || (byteRead != 1) )
           ISOException.throwIt(ISO7816.SW_WRONG_LENGTH);
        
        // get debit amount
        byte debitAmount = buffer[ISO7816.OFFSET_CDATA];
        
        // check debit amount
        if ( ( debitAmount > MAX_TRANSACTION_AMOUNT)
             ||  ( debitAmount < 0 ) )
           ISOException.throwIt(SW_INVALID_TRANSACTION_AMOUNT);
        
        // check the new balance
        if ( (short)( balance - debitAmount ) < (short)0 )
             ISOException.throwIt(SW_NEGATIVE_BALANCE);
        
        balance = (short) (balance - debitAmount);
    
    } // end of debit method
    
    private void getBalance(APDU apdu) {
        
        byte[] buffer = apdu.getBuffer();
        
        // inform system that the applet has finished
        // processing the command and the system should
        // now prepare to construct a response APDU
        // which contains data field
        short le = apdu.setOutgoing();
        
        if ( le < 2 )
           ISOException.throwIt(ISO7816.SW_WRONG_LENGTH);
        
        //informs the CAD the actual number of bytes
        //returned
        apdu.setOutgoingLength((byte)2);
        
        // move the balance data into the APDU buffer
        // starting at the offset 0
        buffer[0] = (byte)(balance >> 8);
        buffer[1] = (byte)(balance & 0xFF);
        
        // send the 2-byte balance at the offset
        // 0 in the apdu buffer
        apdu.sendBytes((short)0, (short)4);
    
    } // end of getBalance method
    
    private void verify(APDU apdu) {
        
        byte[] buffer = apdu.getBuffer();
         if(pin.getTriesRemaining() == (byte)0)
           ISOException.throwIt(SW_CARD_IS_LOCKED);
           
        // retrieve the PIN data for validation.
        byte byteRead = (byte)(apdu.setIncomingAndReceive());
        
        // check pin
        // the PIN data is read into the APDU buffer
        // at the offset ISO7816.OFFSET_CDATA
        // the PIN data length = byteRead
        if ( pin.check(buffer, ISO7816.OFFSET_CDATA,
            byteRead) == false )
            ISOException.throwIt(SW_VERIFICATION_FAILED);
        
    } // end of validate method
    
    private void change(APDU apdu) {
        
       byte[] buffer = apdu.getBuffer();
       if(pin.getTriesRemaining() == (byte)0)
           ISOException.throwIt(SW_CARD_IS_LOCKED);
           
       if ( ! pin.isValidated() )
           ISOException.throwIt(SW_PIN_VERIFICATION_REQUIRED);
           
        // retrieve the PIN data for validation.
        byte byteRead = (byte)(apdu.setIncomingAndReceive());
        if(byteRead > MAX_PIN_SIZE)
           ISOException.throwIt(SW_NEW_PIN_TOO_LONG);
           
       if(byteRead < MIN_PIN_SIZE)
           ISOException.throwIt(SW_NEW_PIN_TOO_SHORT);
        
       pin.update(buffer, (short) ISO7816.OFFSET_CDATA, (byte)byteRead); 
        
    } // end of validate method
} // end of class Wallet

[kuafu]

It can work.

[andromeda92]

everything is working fine now. Thank you.