A User Centric Security Model for Tamper-Resistant Devices

C.6 Application Acquisition and Contractual Agreement Protocol
569 this . shortToBytes ( this . r e c e i v i n g B u f f e r , mainLengthPointer , ( short )
570 ( copyPointer − ( short ) 7) ) ;
571 }
572 }
573 void platformHashGeneration (byte [ ] inArray , short i n O f f s e t ) {}
574 void processSecondMsg ( byte [ ] inArray ) {
575 short i n O f f s e t = ( short ) 1 4 ;
576 short inLength = ( short ) ( ProtocolHandler . bytesToShort ( inArray , ( short )
577 11) ) ;
578 i f ( this . macGenerate ( inArray , i n O f f s e t , inLength ,
579 S i g n a t u r e .MODE_VERIFY) ) {
580 this . phDecryption ( inArray , i n O f f s e t , inLength ) ;
581 U t i l . arrayCopyNonAtomic ( inArray , i n O f f s e t , this . SPIdentity ,
( short ) 0 ,
582 ( short ) this . SPIdentity . l e n g t h ) ;
583 U t i l . arrayCopyNonAtomic ( inArray , ( short ) ( i n O f f s e t + ( short )
584 this . SPIdentity . l e n g t h ) , this . AppIdentity ,
585 ( short ) 0 , ( short ) this . AppIdentity . l e n g t h ) ;
586 } else {
587 ISOException . throwIt ( ( short ) 0xFA18) ;
588 }
589 }
590 boolean processTSMActAppMessage ( ) {
591 short i n O f f s e t = ( short ) ( this . CTLVDataOffset + this . CTLVDataOffset ) ;
592 short inLength = ( short ) ( ProtocolHandler . bytesToShort ( r e c e i v i n g B u f f e r ,
593 ( short ) ( i n O f f s e t − ( short ) 3) ) ) ;
594 i f ( this . macGenerate ( r e c e i v i n g B u f f e r , i n O f f s e t , inLength ,
595 S i g n a t u r e .MODE_VERIFY) ) {
596 this . phDecryption ( r e c e i v i n g B u f f e r , i n O f f s e t , inLength ) ;
597 i n O f f s e t += ( short ) 2 2 5 ;
598 inLength = ( short ) 3 ;
599 TSMVerificationKey . setExponent ( r e c e i v i n g B u f f e r , i n O f f s e t , inLength ) ;
600 i n O f f s e t += ( short ) ( inLength + this . PTLVDataOffset ) ;
601 inLength = ( short ) 6 4 ;
602 TSMVerificationKey . setModulus ( r e c e i v i n g B u f f e r , i n O f f s e t , inLength ) ;
603 i n O f f s e t = ( short ) ( this . CTLVDataOffset + this . CTLVDataOffset ) ;
604 inLength = ( short ) 1 4 2 ;
605 i f ( this . signGenerate ( r e c e i v i n g B u f f e r , ( short ) i n O f f s e t , ( short )
606 inLength , TSMVerificationKey , S i g n a t u r e .MODE_VERIFY) ) {
607 U t i l . arrayCopyNonAtomic ( r e c e i v i n g B u f f e r , ( short ) 224 ,
608 this . SPCookieArray , ( short ) 0 , ( short )
609 this . SPCookieArray . l e n g t h ) ;
610 this . phMacGeneratorKey . setKey ( this . myLongTermMacKey , ( short ) 0) ;
611 phMacGenerator . i n i t ( phMacGeneratorKey , S i g n a t u r e .MODE_SIGN,
612 I n i t i a l i s a t i o n V e c t o r , ( short ) 0 , ( short )
613 I n i t i a l i s a t i o n V e c t o r . l e n g t h ) ;
614 phMacGenerator . s i g n ( this . r e c e i v i n g B u f f e r , ( short ) 14 , ( short ) 96 ,
615 this . SID , ( short ) 0) ;
616 return true ;
617 } else {
618 return f a l s e ;
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