A User Centric Security Model for Tamper-Resistant Devices

C.11 Implementation Helper Classes
253 byte [ ] hex = new byte [ 2 ∗ inArray . l e n g t h ] ;
254 int index = 0 ;
255 for ( byte b : inArray ) {
256 int v = b & 0xFF ;
257 hex [ index++] = HEX_CHAR_TABLE[ v >>> 4 ] ;
258 hex [ index++] = HEX_CHAR_TABLE[ v & 0xF ] ;
259 }
260 try {
261 return new S t r i n g ( hex , "ASCII" ) ;
262 } catch ( Exception cE ) {
263 System . out . p r i n t l n ( " Exception in bytesToString : " +
264 cE . getMessage ( ) ) ;
265 }
266 return " Error " ;
267 }
268 }
C.11.2
CAMS Implementation
The implementation of the helper function discussed in this section provides the functionality
of a Card Application Management System (CAMS) that provides an interface to the
smart card.
1 package j a v a c a r d t e r m i n a l ;
2 import java . u t i l . ∗ ;
3 import javax . smartcardio . ∗ ;
4 import java . math . B i g I n t e g e r ;
5 import java . i o . FileOutputStream ;
6 import java . i o . PrintWriter ;
7 public class Terminal {
8 long protocolStartTime = 0 ;
9 long protocolEndTime = 0 ;
10 TerminalFactory myTerminal = TerminalFactory . g e t D e f a u l t ( ) ;
11 CardTerminals myCardTerminals = myTerminal . t e r m i n a l s ( ) ;
12 L i s t < CardTerminal > l i s t T e r m i n a l = null ;
13 Card myCard = null ;
14 CardChannel myCardChannel = null ;
15 CardTerminal myCardTerminal = null ;
16 ProtocolHandler myProtocolHandler = new ProtocolHandler ( ) ;
17 ProtocolHandlerSCIn myProtocolHanlderSCIn = new ProtocolHandlerSCIn ( ) ;
18 private s t a t i c f i n a l int TimeOut = 1 0 ;
19 private s t a t i c f i n a l int MAX_APDU_SIZE = 1028;
20 private ConstructedTLV messageIncoming =
ConstructedTLV . getConstructedTLV ( ) ;
21 private s t a t i c f i n a l byte [ ] CMD_APPLICATION_SELECT = {
22 ( byte ) 0x00 , ( byte ) 0xA4 , ( byte ) 0x04 , ( byte ) 0x00 , ( byte ) 0x09 ,
( byte ) 0xD0 ,
23 ( byte ) 0x00 , ( byte ) 0x00 , ( byte ) 0x00 , ( byte ) 0x62 , ( byte ) 0x02 ,
( byte ) 0x01 ,
24 ( byte ) 0x0C , ( byte ) 0x08 } ;
25 private s t a t i c f i n a l byte [ ] CMD_APPLICATION_INITIALISATION = {
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