A User Centric Security Model for Tamper-Resistant Devices

C.4 Secure and Trusted Channel Protocol Service Provider
348 try {
349 this . myProtocolHelperObject . GenerateMac ( macInputValue , 0 ,
350 macInputValue . length , this . mySessionEncryptionKey , 0 , keyGenKey ) ;
351 } catch ( Exception cE ) {
352 System . out . p r i n t l n ( " Exception at ProtocolHandler . GenerateKeys : " +
353 cE . g e t C l a s s ( ) . getName ( ) ) ;
354 }
355 for ( int i = 4 8 ; i < 6 4 ; i ++) {
356 macInputValue [ i ] = ( byte ) 0x03 ;
357 }
358 try {
359 this . myProtocolHelperObject . GenerateMac ( macInputValue , 0 ,
360 macInputValue . length , this . mySessionMacKey , 0 , keyGenKey ) ;
361 } catch ( Exception cE ) {
362 System . out . p r i n t l n ( " Exception at ProtocolHandler . GenerateKeys : " +
363 cE . g e t C l a s s ( ) . getName ( ) ) ;
364 }
365 }
366 }
C.4 Secure and Trusted Channel Protocol Service Provider
The Java Card implementation of the STCP SP discussed in section 6.3 is listed in subsequent
sections.
C.4.1
Smart Card Implementation
Following is the implementation of the smart card protocol handler that supports the
STCP SP .
1 package protocolSTCPSP ;
2
3 import javacard . framework .APDU;
4 import javacard . framework . Applet ;
5 import javacard . framework . ISO7816 ;
6 import javacard . framework . ISOException ;
7 import javacard . framework . JCSystem ;
8 import javacard . framework . U t i l ;
9 import javacard . s e c u r i t y . AESKey ;
10 import javacard . s e c u r i t y . Key ;
11 import javacard . s e c u r i t y . KeyBuilder ;
12 import javacard . s e c u r i t y . KeyPair ;
13 import javacard . s e c u r i t y . MessageDigest ;
14 import javacard . s e c u r i t y . RSAPrivateKey ;
15 import javacard . s e c u r i t y . RSAPublicKey ;
16 import javacard . s e c u r i t y . RandomData ;
17 import javacard . s e c u r i t y . S i g n a t u r e ;
18 import javacardx . apdu . ExtendedLength ;
19 import javacardx . crypto . Cipher ;
20 public class ProtocolHandler extends Applet implements ExtendedLength
290