A User Centric Security Model for Tamper-Resistant Devices

C.7 Application Binding Protocol - Local
37 }
38 public s t a t i c ServerApp o b j e c tGenerator ( ) {
39 return new ServerApp ( ) ;
40 }
41 public void o b j e c t I n s t a n t i a t i o n ( ) {
42 server_SignKeyPair . genKeyPair ( ) ;
43 SerTpmKey . setKey ( RandomNumberServer , ( short ) 0) ;
44 }
45 public void serverUpdate (ScTPM obScTPM, ClientApp obClientApp ) {
46 myTPMRef = obScTPM ;
47 myClientAppRef = obClientApp ;
48 myClientAppRef . s e r v e r S i g n V e r i f i c a t i o n U p d a t e
49 ( server_SignKeyPair . g e t P u b l i c ( ) ) ;
50 obScTPM . serverTPMKeyAgreement (SerTpmKey) ;
51 }
52 public void c l i e n t S i g n V e r i f i c a t i o n U p d a t e ( PublicKey s i g n V e r i f i c a t i o n )
53 {
54 myClientVerificationKey = s i g n V e r i f i c a t i o n ;
55 }
56 public void digestUpdate ( byte [ ] s p C l i e n t D i g e s t ) {
57 C l i e n t D i g e s t = s p C l i e n t D i g e s t ;
58 }
59 public void protocolManager ( short stage , byte [ ] p_Message ) {
60 this . pMessage = p_Message ;
61 i f ( s t a g e == 1) {
62 pMessage [ 3 ] = ( byte ) 6 4 ;
63 v e r i f ySignedData ( ) ;
64 U t i l . arrayCopyNonAtomic ( pMessage , ( short ) (4
65 +C l i e n t I d e n t i t y . l e n g t h +
66 S e r v e r I d e n t i t y . l e n g t h ) ,
67 RandomNumberClient , ( short ) 0 , ( short )
68 RandomNumberClient . l e n g t h ) ;
69 pMessage [ 3 ] = ( byte ) 6 8 ;
70 pMessage [ 2 ] = pMessage [ 3 ] ;
71 pMessage [ 3 ] = ( byte ) U t i l . arrayCopyNonAtomic ( S e r v e r I d e n t i t y ,
72 ( short ) 0 , pMessage , ( short ) pMessage [ 3 ] , ( short )
73 S e r v e r I d e n t i t y . l e n g t h ) ;
74 pMessage [ 3 ] = ( byte ) U t i l . arrayCopyNonAtomic ( C l i e n t I d e n t i t y ,
75 ( short ) 0 , pMessage , ( short ) pMessage [ 3 ] , ( short )
76 C l i e n t I d e n t i t y . l e n g t h ) ;
77 myServerAppRandomData . generateData ( RandomNumberServer , (short ) 0 ,
78 ( short ) RandomNumberServer . l e n g t h ) ;
79 pMessage [ 3 ] = ( byte ) U t i l . arrayCopyNonAtomic ( RandomNumberServer ,
80 ( short ) 0 , pMessage , ( short ) pMessage [ 3 ] , ( short )
81 RandomNumberServer . l e n g t h ) ;
82 pMessage [ 0 ] = ( byte ) ( C l i e n t I d e n t i t y . l e n g t h +
83 S e r v e r I d e n t i t y . l e n g t h +
84 RandomNumberServer . l e n g t h ) ;
85 for ( short i = 0 ; i < 6 ; i ++) {
86 pMessage [ ( short ) ( pMessage [ 3 ] + i ) ] = ( byte ) 0xCA;
87 }
370