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installation APDU command

http://www.javacardos.com/javacardforum/viewtopic.php?f=4&t=892

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installation APDU command

Posted: Tue Oct 25, 2016 10:27 pm
by dabluwt
Recently I started to study walletdemo applet in JCIDE.
But I am unclear about the installation APDU command of this applet instance:

>> install 1122334455 112233445566 112233445566 00 08112233445566778810404142434445464748494A4B4C4D4E4F080140203040506070
>> 80 E6 0C 00 3D 05 11 22 33 44 55 06 11 22 33 44 55 66 06 11 22 33 44 55 66 01 00 25 C9 23 08 11 22 33 44 55 66 77 88 10 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 08 01 40 20 30 40 50 60 70 00 00
<< 00 90 00

Could anyone explain a bit on installation parameter/APDU?

Re: installation APDU command

Posted: Wed Oct 26, 2016 3:36 am
by marjkbadboy
Check section 9.5 Install Command in GlobalPlatform specification http://www.win.tue.nl/pinpasjc/docs/Car ... 0v0303.pdf

Re: installation APDU command

Posted: Wed Oct 26, 2016 4:22 am
by dabluwt
Thanks for your reply. But how can I get the latter half of installation parameters behind tag 'C9'? I couldn't see any useful information in the spec about this part.

C9 23 08 11 22 33 44 55 66 77 88 10 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 08 01 40 20 30 40 50 60 70 00 00

Re: installation APDU command

Posted: Wed Oct 26, 2016 6:37 am
by marjkbadboy
The parameters behind C9 are decided by the applet.

Show your code here if possible.

Re: installation APDU command

Posted: Wed Oct 26, 2016 6:43 am
by dabluwt
This applet comes with JCIDE.

Code: Select all

package WalletDemoApplet;

import javacard.framework.*;
import javacard.security.*;
import javacardx.crypto.*;

public class WalletDemoApplet extends Applet {
   
    private final static byte Wallet_CLA =(byte)0x80; 
    final static byte VERIFY = (byte) 0x20;
    private final static byte CREDIT = (byte) 0x30;
    private final static byte CONSUME = (byte) 0x40;
    private final static byte GET_BALANCE = (byte) 0x50;
    private final static byte GET_INTEGRAL =(byte)0x70;    
    private final static byte GET_CARDID= (byte) 0x01;
     
    //private final static byte GET_KEY =(byte)0x02; 
    
    //private final static  byte MAX_NUM_KEYS = 16;
    private final static  byte MAX_NUM_CARDID =8;
    // maximum balance
    private final static short MAX_BALANCE = (short)0x7fff;
    // 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;
    // signal the the INTEGRAL becomes negative
    final static short SW_EXCEED_MAXIMUM_INTEGRAL = 0x6A83;
    
    final static short SW_EXTERAL_MARK = 0x6A86;

    
    private final static byte tempmux[] = {(byte)0xff,(byte)0xff };
    private final static byte balance_new[] = {0x00,0x00};
    private final static byte tempmux1[] = {(byte)0xff,(byte)0xff,(byte)0xff,(byte)0xff };
    private final static byte balance_new1[] = {0x00,0x00,0x00,0x00};  
    private final static byte MaxIntegral[] = {(byte)0xff,(byte)0xff,(byte)0xff,(byte)0xff };
    private final static byte Integral_new[] = {0x00,0x00,0x00,0x00};  
   short balance;
   short integral;
   //private  byte  cardid[];
   //private  byte  key[];

   //private static final byte key[]    = {0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f};
   //private static final byte cardid[] = {0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08};
    final static byte PIN_TRY_LIMIT =(byte)0x03;
    // maximum size PIN
    final static byte MAX_PIN_SIZE =(byte)0x08;
    // 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;
    
    boolean bRand,ExternalMark,verifyMark;
    
    OwnerPIN pin;
   DESKey Key;
   Cipher cipherDES_ECB_NOPAD;
   RandomData myRandomS;

   final static byte[] seed = {(byte)0x58, (byte)0x49, (byte)0x72, (byte)0x15, (byte)0x3E, (byte)0xA7, (byte)0xB0, (byte)0xC8};
   byte[] cardID;
   
   final static byte[] input = {(byte)0xC8, (byte)0xA2, 0x35, (byte)0x5E, 0x0F, 0x1B, (byte)0x86, (byte)0xE2};
   //= {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
   final static byte[] iv = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
   byte[] output;
   short test=(short)0xfffe;
    private WalletDemoApplet(byte bArray[], short bOffset, byte bLength)
    {
       /* cardid=new byte[MAX_NUM_CARDID];
       key  =new byte[MAX_NUM_KEYS];
        for (byte i = 0; i < MAX_NUM_KEYS; i++)
           key[i] =i;
        for (byte i = 0; i < MAX_NUM_CARDID; i++)
           cardid[i] =i;*/
 
       balance  = 0;
       integral = 0;
       
       
       Key = (DESKey)KeyBuilder.buildKey(KeyBuilder.TYPE_DES, KeyBuilder.LENGTH_DES3_2KEY, false);          
        //cipherDES_ECB_NOPAD = Cipher.getInstance(Cipher.ALG_DES_ECB_NOPAD, false);
       cipherDES_ECB_NOPAD = Cipher.getInstance(Cipher.ALG_DES_CBC_ISO9797_M1, false);
      myRandomS = RandomData.getInstance(RandomData.ALG_SECURE_RANDOM);

        pin = new OwnerPIN(PIN_TRY_LIMIT,   MAX_PIN_SIZE);
        cardID = new byte[10];
        output = new byte[16];
        //input = new byte[16];
        bRand = false;
        ExternalMark=false;
        verifyMark=false;
        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
        bOffset = (short)(bOffset+1);        
        byte pinLen = bArray[bOffset];
        
        
        // The installation parameters contain the PIN
        // initialization value
        pin.update(bArray, (short)(bOffset+1), pinLen);
        
        // Initialize key
        bOffset = (short)(bOffset+pinLen+1);
        byte keyLen = bArray[bOffset];
        Key.setKey(bArray, (short)(bOffset+1));
        
        // Initialize cardID
        bOffset = (short)(bOffset+keyLen+1);
        byte idLen = bArray[bOffset];
        Util.arrayCopy(bArray, (short)(bOffset+1), cardID, (short)0, (short)idLen); 
        
        register();   
    }
   public static void install(byte[] bArray, short bOffset, byte bLength) {
      // GP-compliant JavaCard applet registration
      new WalletDemoApplet(bArray, bOffset, bLength);
      
   }

   public void process(APDU apdu) {
      // Good practice: Return 9000 on SELECT
      if (selectingApplet()) {
         return;
      }
      byte[] buf = apdu.getBuffer();
      
      if ((buf[ISO7816.OFFSET_CLA] == Wallet_CLA) ||
           (buf[ISO7816.OFFSET_CLA] == ISO7816.CLA_ISO7816))
      {
          switch (buf[ISO7816.OFFSET_INS]) 
          {
              case CREDIT:
                 //credit(apdu);
                 credit_extend(apdu);
                 return;  
              case VERIFY  :
                 verify(apdu);
                 return;                 
              case CONSUME :
                 //consume(apdu);
                 consume_extend(apdu);
                 return;
              case GET_BALANCE:
                 //getBalance(apdu);
                 getBalance1(apdu);
                 return;                 
              case GET_INTEGRAL:
                 getintegal(apdu);                 
                 return;
              case GET_CARDID: 
                  getcardid(apdu);
                  return;
             case (byte) 0x84:
                if(buf[ISO7816.OFFSET_CLA] != (byte)0x00)
                {
                   ISOException.throwIt(ISO7816.SW_CLA_NOT_SUPPORTED);
                }
             
                if(buf[ISO7816.OFFSET_P1] != (byte)0x00 || buf[ISO7816.OFFSET_P2] != (byte)0x00)
                {
                   ISOException.throwIt(ISO7816.SW_INCORRECT_P1P2);
                }
             
                if(buf[ISO7816.OFFSET_LC] > (byte)0x08)
                {
                   ISOException.throwIt(Util.makeShort((byte)0x6C, (byte)0x08));
                }
                
                short responseLength = Util.makeShort((byte)0x00, (byte)buf[ISO7816.OFFSET_LC]);
             
                // Secure Random                
                myRandomS.setSeed(seed, (short)0, (short)0x08);
                myRandomS.generateData(buf, (short)ISO7816.OFFSET_CDATA, responseLength);
                /*buf[5]=11;
                    buf[6]=11;
                    buf[7]=11;
                    buf[8]=11;
                    buf[9]=11;
                    buf[10]=11;
                    buf[11]=11;
                    buf[12]=11; */                
                Util.arrayCopy(buf, (short)ISO7816.OFFSET_CDATA, input, (short)0, responseLength);
                apdu.setOutgoingAndSend((short)ISO7816.OFFSET_CDATA, responseLength);
                bRand = true;
                
                //short ouLen1 = calculateCryptogram(Key, input, (short)0, (short)8, output, (short)0);
                //byte[] output2={0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
                //ouLen1 = calculateCryptogram2(Key, output, (short)0, (short)8, output2, (short)0);
                break;
                
             case (byte) 0x82: // External Auth
             {
                if(bRand == false)
                {
                   ISOException.throwIt(ISO7816.SW_CONDITIONS_NOT_SATISFIED);
                }
                bRand = false;
                
                if(buf[ISO7816.OFFSET_LC] != (byte)0x08)
                {
                   ISOException.throwIt(ISO7816.SW_WRONG_LENGTH);
                }
                apdu.setIncomingAndReceive();
                short ouLen = calculateCryptogram(Key, input, (short)0, (short)8, output, (short)0);
                if(Util.arrayCompare(buf, (short)ISO7816.OFFSET_CDATA, output, (short)0, (short)8) != 0)
                {
                   ISOException.throwIt(ISO7816.SW_SECURITY_STATUS_NOT_SATISFIED);
                }
                ExternalMark=true;
                break;
             }

             case (byte) 0x88: // Internal Auth
             {
                bRand = false;

                if(buf[ISO7816.OFFSET_LC] != (byte)0x08)
                {
                   ISOException.throwIt(ISO7816.SW_WRONG_LENGTH);
                }
                
                apdu.setIncomingAndReceive();
                
                short ouLen = calculateCryptogram(Key, buf, (short)ISO7816.OFFSET_CDATA, (short)8, buf, (short)ISO7816.OFFSET_CDATA);
                apdu.setOutgoingAndSend((short)ISO7816.OFFSET_CDATA, ouLen);
                break;
             }             
             default:
                bRand = false;
                ISOException.throwIt(ISO7816.SW_INS_NOT_SUPPORTED);
          }
      }
      else
         ISOException.throwIt(ISO7816.SW_INS_NOT_SUPPORTED);
   }
   
   private short calculateCryptogram(DESKey key, byte[] input, short sin, short inLen, byte[] output, short sou)
   {
      short ouLen;
      
      //cipherDES_ECB_NOPAD.init(key, Cipher.MODE_ENCRYPT);
      cipherDES_ECB_NOPAD.init(key, Cipher.MODE_ENCRYPT, iv, (short)0, (short)8);
        ouLen = cipherDES_ECB_NOPAD.doFinal(input, (short)sin, (short)inLen, output, (short)sou);
      return ouLen;
   }
   private short calculateCryptogram2(DESKey key, byte[] input, short sin, short inLen, byte[] output, short sou)
   {
      short ouLen;
      
      //cipherDES_ECB_NOPAD.init(key, Cipher.MODE_ENCRYPT);
      cipherDES_ECB_NOPAD.init(key, Cipher.MODE_DECRYPT, iv, (short)0, (short)8);
        ouLen = cipherDES_ECB_NOPAD.doFinal(input, (short)sin, (short)inLen, output, (short)sou);
      return ouLen;
   }   
    private void credit(APDU apdu) {
        
        // access authentication
        if(!ExternalMark)
           ISOException.throwIt(SW_EXTERAL_MARK);
        if ( ! pin.isValidated() )
            ISOException.throwIt    (SW_PIN_VERIFICATION_REQUIRED);
              
        byte[] buffer = apdu.getBuffer();

        short numBytes = (short)(buffer[ISO7816.OFFSET_LC]&0xFF);
        short byteRead =(short)(apdu.setIncomingAndReceive());
        
        if ( numBytes != byteRead)
            ISOException.throwIt(ISO7816.SW_WRONG_LENGTH);
        
        // get the credit amount
        short creditAmount=0;
        if (numBytes==1)
            creditAmount= Util.makeShort((byte)0x00, buffer[ISO7816.OFFSET_CDATA]);
        else
           creditAmount=Util.getShort(buffer, ISO7816.OFFSET_CDATA);
        if  (creditAmount==0 || (short)(balance + creditAmount)> MAX_BALANCE)
           ISOException.throwIt(SW_NEGATIVE_BALANCE);

        balance = (short)(balance + creditAmount);

    } // end of deposit method
    private void verify(APDU apdu) {

        byte[] buffer = apdu.getBuffer();
        // 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);
      //verifyMark=true;
    }
    private void consume(APDU apdu) {
    
        /*if ( ! verifyMark )
            ISOException.throwIt(SW_PIN_VERIFICATION_REQUIRED);*/
        if ( ! pin.isValidated() )
            ISOException.throwIt    (SW_PIN_VERIFICATION_REQUIRED);
        byte[] buffer = apdu.getBuffer();
        
        short numBytes = (short)buffer[ISO7816.OFFSET_LC];
        
        short byteRead =(short)(apdu.setIncomingAndReceive());
        
        if ( numBytes != byteRead)
            ISOException.throwIt(ISO7816.SW_WRONG_LENGTH);
        
        // get the balance amount
        short debitAmount=0;
        if (numBytes==1)
           debitAmount= Util.makeShort((byte)0x00, buffer[ISO7816.OFFSET_CDATA]);
        else
           debitAmount=Util.getShort(buffer, ISO7816.OFFSET_CDATA);

        if (debitAmount==0 || debitAmount>balance)
           ISOException.throwIt(SW_NEGATIVE_BALANCE);
             
        //integral= (short)(integral + debitAmount/100);
        calIntegral(buffer, ISO7816.OFFSET_CDATA,numBytes);
        balance = (short)(balance - debitAmount);
    
    } // end of debit method
    
    private void getBalance(APDU apdu) {
        
        byte[] buffer = apdu.getBuffer();        
        short le = apdu.setOutgoing();
        apdu.setOutgoingLength((byte)2);
        
        buffer[0] = (byte)(balance >> 8);
        buffer[1] = (byte)(balance & 0xFF);
        
        apdu.sendBytes((short)0, (short)2);
    
    }  
    private void getBalance1(APDU apdu) {
        
        byte[] buffer = apdu.getBuffer();  
        short le = apdu.setOutgoing();           
        apdu.setOutgoingLength((byte)2);   
        apdu.sendBytesLong(balance_new, (short)0, (short)2);
    
    } 
    private void getintegal(APDU apdu) 
    {
       /*byte[] buffer = apdu.getBuffer();      
        Util.setShort(buffer,(short)0,(short)integral);
       apdu.setOutgoingAndSend((short) 0, (short) 2);*/
        byte[] buffer = apdu.getBuffer();  
        short le = apdu.setOutgoing();           
        apdu.setOutgoingLength((byte)4);   
        apdu.sendBytesLong(Integral_new, (short)0, (short)4);
    }
    private void getcardid(APDU apdu)
    {
        short le = apdu.setOutgoing();
        apdu.setOutgoingLength(MAX_NUM_CARDID);
        apdu.sendBytesLong(cardID,(short)0, (short)8);
    }
    private void credit_extend(APDU apdu) {
        
       // access authentication
       
        if(!ExternalMark)
           ISOException.throwIt(SW_EXTERAL_MARK);
        if ( ! pin.isValidated() )
            ISOException.throwIt    (SW_PIN_VERIFICATION_REQUIRED);       
       byte[] buffer = apdu.getBuffer();
   
       short numBytes = (short)buffer[ISO7816.OFFSET_LC];
       short byteRead =(short)(apdu.setIncomingAndReceive());
       
       if ( numBytes != byteRead)
           ISOException.throwIt(ISO7816.SW_WRONG_LENGTH);
       
       // get the credit amount
       short low=0,high=0;
       byte temp[]={0x00,0x00};
       if ((short)(buffer[ISO7816.OFFSET_CDATA]& 0xff)==0 && (short)(buffer[ISO7816.OFFSET_CDATA+1]& 0xff)==0) //consume amount is 0
          ISOException.throwIt(SW_NEGATIVE_BALANCE);//credit amount is 0
    
        Util.arrayCopy(balance_new,(short)(0),temp,(short)0,(short)2);  

       
       low=(short)(buffer[ISO7816.OFFSET_CDATA+1]& 0xff);
       low=(short)(low+(temp[1]&0xff));
        byte aa = (byte)(low >> 8);
        temp[1] = (byte)(low & 0xFF);
        
        high=(short)(buffer[ISO7816.OFFSET_CDATA]& 0xff);
        high=(short)(high+aa+(temp[0]&0xff));
        aa = (byte)(high >> 8);
        temp[0] = (byte)(high & 0xFF); 
        
        if(aa>0)
           ISOException.throwIt(ISO7816.SW_WRONG_LENGTH);
        if((short)(tempmux[0]&0xff)< (short)(temp[0]&0xff))
           ISOException.throwIt(ISO7816.SW_WRONG_LENGTH);
        
       Util.arrayCopy(temp,(short)0,balance_new,(short)0,(short)2);

           
    } // end of deposit method
    private void consume_extend(APDU apdu) {        
        if ( ! pin.isValidated() )
            ISOException.throwIt    (SW_PIN_VERIFICATION_REQUIRED);
       byte[] buffer = apdu.getBuffer();
   
       short numBytes = (short)buffer[ISO7816.OFFSET_LC];
       short byteRead =(short)(apdu.setIncomingAndReceive());
       
       if ( numBytes != byteRead )
           ISOException.throwIt(ISO7816.SW_WRONG_LENGTH);
       
       // get the consume amount   
       byte temp[]={0x00,0x00};
       Util.arrayCopy(buffer,(short)(ISO7816.OFFSET_CDATA),temp,(short)0,(short)2);
       //short result=(short)(Util.getShort(buffer, ISO7816.OFFSET_CDATA));//避免ffff情况
       if ((short)(temp[0]& 0xff)==0 && (short)(temp[1]& 0xff)==0) //consume amount is 0
          ISOException.throwIt(ISO7816.SW_WRONG_LENGTH);
       if((short)(balance_new[0]&0xff)< (short)(temp[0]& 0xff)) 
          ISOException.throwIt(SW_NEGATIVE_BALANCE);
       if ((short)(balance_new[0]&0xff)==(short)(temp[0]& 0xff) &&  ((short)(balance_new[1]&0xff)< (short)(temp[1]& 0xff)))
             ISOException.throwIt(SW_NEGATIVE_BALANCE);
       short low=0,high=0;       
        Util.arrayCopy(buffer,(short)(ISO7816.OFFSET_CDATA),temp,(short)0,(short)2);
        calIntegral(buffer, ISO7816.OFFSET_CDATA,numBytes);
        
       low=(short)(balance_new[1]& 0xff);
       high=(short)(balance_new[0]& 0xff);
       if (low<(short)(temp[1]&0xff))
       {
          high=(short)(high-1);
          low=(short)(low+0x0100-temp[1]&0xff);
          temp[1]=(byte)(low & 0xff);          
       }
       else
       {
          low=(short)(low-temp[1]&0xff);
          temp[1]=(byte)(low & 0xff);          
       }
       
       high=(short)(high-temp[0]);
        temp[0] = (byte)(high & 0xFF);
        Util.arrayCopy(temp,(short)(0),balance_new,(short)0,(short)2);       

    } // end of depos   
    private void credit_extend2(APDU apdu) {
        
       // access authentication
        if(!ExternalMark)
           ISOException.throwIt(SW_EXTERAL_MARK);
        if ( ! pin.isValidated() )
            ISOException.throwIt(SW_PIN_VERIFICATION_REQUIRED);    
       byte[] buffer = apdu.getBuffer();
   
       short numBytes = buffer[ISO7816.OFFSET_LC];
       short byteRead =apdu.setIncomingAndReceive();
       
       if ( numBytes != byteRead)
           ISOException.throwIt(ISO7816.SW_WRONG_LENGTH);
       
       // get the credit amount
       short low=0;
       byte temp[]={0x00,0x00,0x00,0x00};
       //short i= (short)(ISO7816.OFFSET_CDATA+numBytes); //numBytes+ISO7816.OFFSET_CDATA;
       Util.arrayCopy(buffer,(short)(ISO7816.OFFSET_CDATA),temp,(short)0,numBytes );
       //short result=(short)(Util.getShort(buffer, ISO7816.OFFSET_CDATA));//避免ffff情况
        if((short)(temp[0]& 0xff)==0 && (short)(temp[1]& 0xff)==0 && (short)(temp[2]& 0xff)==0 && (short)(temp[3]& 0xff)==0)
              ISOException.throwIt(ISO7816.SW_WRONG_LENGTH);//credit amount is 0
        Util.arrayFillNonAtomic(temp, (short)0,(short)numBytes,(byte)0);
        Util.arrayCopy(balance_new1,(short)(0),temp,(short)0,numBytes);  
        short j=3;
        byte aa=0;
        for(short i= (short)(ISO7816.OFFSET_CDATA+numBytes-1);i>=(short)(ISO7816.OFFSET_CDATA);i--)
        {
          low=(short)(buffer[i]& 0xff);
          low=(short)(low+aa+(temp[j]&0xff));
           aa = (byte)(low >> 8);
           temp[j] = (byte)(low & 0xFF);
           j--;              
        }
 
        if(aa>0)
           ISOException.throwIt(SW_NEGATIVE_BALANCE);

        if((short)(tempmux1[0]&0xff)<(short)(temp[0]&0xff))           
           ISOException.throwIt(ISO7816.SW_WRONG_LENGTH);   
        else if((short)(tempmux1[0]&0xff)==(short)(temp[0]&0xff))
        {
            if((short)(tempmux1[1]&0xff)<(short)(temp[1]&0xff))
               ISOException.throwIt(SW_NEGATIVE_BALANCE);
            else if((short)(tempmux1[1]&0xff)==(short)(temp[1]&0xff))
            {
               if((short)(tempmux1[2]&0xff)<(short)(temp[2]&0xff))
                  ISOException.throwIt(SW_NEGATIVE_BALANCE); 
               else if ((short)(tempmux1[2]&0xff)==(short)(temp[2]&0xff))
               {
                  if((short)(tempmux1[3]&0xff)<(short)(temp[3]&0xff))
                     ISOException.throwIt(SW_NEGATIVE_BALANCE);    
               }                     
            }
        }      
       Util.arrayCopy(temp,(short)0,balance_new1,(short)0,(short)numBytes);

           
    } // end of deposit method
    private void consume_extend2(APDU apdu) {        
        if ( ! pin.isValidated() )
            ISOException.throwIt    (SW_PIN_VERIFICATION_REQUIRED);
        
       byte[] buffer = apdu.getBuffer();
   
       short numBytes = (short)buffer[ISO7816.OFFSET_LC];
       short byteRead =(short)(apdu.setIncomingAndReceive());
       
       if ( numBytes != byteRead )
           ISOException.throwIt(ISO7816.SW_WRONG_LENGTH);
       
       // get the consume amount   
       byte temp[]={0x00,0x00,0x00,0x00};
       Util.arrayCopy(buffer,(short)(ISO7816.OFFSET_CDATA),temp,(short)0,numBytes );
       //short result=(short)(Util.getShort(buffer, ISO7816.OFFSET_CDATA));//避免ffff情况
        if((short)(temp[0]& 0xff)==0 && (short)(temp[1]& 0xff)==0 && (short)(temp[2]& 0xff)==0 && (short)(temp[3]& 0xff)==0)
           ISOException.throwIt(ISO7816.SW_WRONG_LENGTH);
        if((short)(balance_new1[0]&0xff)<(short)(temp[0]&0xff))           
           ISOException.throwIt(SW_NEGATIVE_BALANCE);   
        else if((short)(balance_new1[0]&0xff)==(short)(temp[0]&0xff))
        {
            if((short)(balance_new1[1]&0xff)<(short)(temp[1]&0xff))
               ISOException.throwIt(SW_NEGATIVE_BALANCE);
            else if((short)(balance_new1[1]&0xff)==(short)(temp[1]&0xff))
            {
               if((short)(balance_new1[2]&0xff)<(short)(temp[2]&0xff))
                  ISOException.throwIt(SW_NEGATIVE_BALANCE); 
               else if ((short)(balance_new1[2]&0xff)==(short)(temp[2]&0xff))
               {
                  if((short)(balance_new1[3]&0xff)<(short)(temp[3]&0xff))
                     ISOException.throwIt(SW_NEGATIVE_BALANCE);    
               }                     
            }
        }
        calIntegral(buffer, ISO7816.OFFSET_CDATA,numBytes);                 
        Util.arrayCopy(buffer,(short)(ISO7816.OFFSET_CDATA),temp,(short)0,(short)2);
        short low=0;
        byte aa=0;
        for(short j=3 ;j>=0; j--)
        {
           low=(short)(balance_new1[j]& 0xff-aa);
          if (low<(short)(temp[j]&0xff))
          {
             aa=1;
             low=(short)(low+0x0100-temp[j]&0xff);
             temp[j]=(byte)(low & 0xff);          
          }
          else
          {   
             aa=0;
             low=(short)(low-temp[j]&0xff);
             temp[j]=(byte)(low & 0xff);          
          }
       } 
        Util.arrayCopy(temp,(short)(0),balance_new1,(short)0,(short)numBytes);       

    } // end of depos   
    private void getBalance2(APDU apdu) {
        
        byte[] buffer = apdu.getBuffer();  
        short le = apdu.setOutgoing();           
        apdu.setOutgoingLength((byte)4);   
        apdu.sendBytesLong(balance_new1, (short)0, (short)4);
    
    } 
    private void calIntegral(byte [] buf,byte soff,short len)
    {
       byte temp[]={0x00,0x00,0x00,0x00};
       short low=0;
       byte aa=0;
        if (len==2)
             Util.arrayCopy(buf, soff, temp,(short)2, len);
        else
           Util.arrayCopy(buf, soff, temp,(short)0, len);
        for(short i= 3;i>=0;i--)
        {
          low=(short)(Integral_new[i]& 0xff);
          low=(short)(low+aa+(temp[i]&0xff));
           aa = (byte)(low >> 8);
           temp[i] = (byte)(low & 0xFF);          
        }
        if(aa>0)
           ISOException.throwIt(SW_EXCEED_MAXIMUM_INTEGRAL);

        if((short)(MaxIntegral[0]&0xff)<(short)(temp[0]&0xff))           
           ISOException.throwIt(SW_EXCEED_MAXIMUM_INTEGRAL);   
        else if((short)(MaxIntegral[0]&0xff)==(short)(temp[0]&0xff))
        {
            if((short)(MaxIntegral[1]&0xff)<(short)(temp[1]&0xff))
               ISOException.throwIt(SW_EXCEED_MAXIMUM_INTEGRAL);
            else if((short)(MaxIntegral[1]&0xff)==(short)(temp[1]&0xff))
            {
               if((short)(MaxIntegral[2]&0xff)<(short)(temp[2]&0xff))
                  ISOException.throwIt(SW_EXCEED_MAXIMUM_INTEGRAL); 
               else if ((short)(MaxIntegral[2]&0xff)==(short)(temp[2]&0xff))
               {
                  if((short)(MaxIntegral[3]&0xff)<(short)(temp[3]&0xff))
                     ISOException.throwIt(SW_EXCEED_MAXIMUM_INTEGRAL);    
               }                     
            }
        }      
       Util.arrayCopy(temp,(short)0,Integral_new,(short)0,(short)4);
    }
  }

Re: installation APDU command

Posted: Wed Oct 26, 2016 8:40 am
by marjkbadboy
Tag 'C9' : Application Specific Parameters
Format: C9 + length(0X23) + data

From the source code of this applet, you can analyze the data format: "Length of PIN +PIN" + "Length of Key +Key" +"Length of cardID +cardID"

"
// The installation parameters contain the PIN
// initialization value
pin.update(bArray, (short)(bOffset+1), pinLen);

// Initialize key
bOffset = (short)(bOffset+pinLen+1);
byte keyLen = bArray[bOffset];
Key.setKey(bArray, (short)(bOffset+1));

// Initialize cardID
bOffset = (short)(bOffset+keyLen+1);
byte idLen = bArray[bOffset];
Util.arrayCopy(bArray, (short)(bOffset+1), cardID, (short)0, (short)idLen);
"

Re: installation APDU command

Posted: Wed Oct 26, 2016 9:45 pm
by dabluwt
You really saved my day. Thank you very much. :D

Thanks for your kind help.
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