A User Centric Security Model for Tamper-Resistant Devices

C.6 Application Acquisition and Contractual Agreement Protocol
85 ConstructedTLV . getConstructedTLV ( this . SCUserCertificateTag ) ;
86 private ConstructedTLV S C C e r t i f i c a t e = ConstructedTLV . getConstructedTLV
87 ( this . SCCertificateTag ) ;
88 private PrimitiveTLV PlatformHash = PrimitiveTLV . getPrimitiveTLV
89 ( this . PlatformHashTag ) ;
90 private PrimitiveTLV U s e r I d e n t i t y = PrimitiveTLV . getPrimitiveTLV
91 ( this . UserIdentityTag ) ;
92 private P r o t o c o l H e l p e r C l a s s myProtocolHelperObject = new
93 P r o t o c o l H e l p e r C l a s s ( ) ;
94 private byte [ ] mySessionEncryptionKey = new byte [ 1 6 ] ;
95 private byte [ ] mySessionMacKey = new byte [ 1 6 ] ;
96 private PublicKey SCUserVerificationKey = null ;
97 private PublicKey SCVerificationKey = null ;
98 public S e r v i c e P r o v i d e r P r o t o c o l H a n d l e r ( ) {
99 myProtocolHelperObject . p r o t o c o l I n i t i a l i s e ( ) ;
100 RSAPublicKey tempKey = ( RSAPublicKey )
101 myProtocolHelperObject . getPublicKey ( ) ;
102 byte [ ] tempExponent = tempKey . getPublicExponent ( ) . toByteArray ( ) ;
103 this . PublicExponent . i n i t i a l i s a t i o n P T L V ( this . PublicExponentTag ,
104 tempExponent . l e n g t h ) ;
105 this . PublicExponent . setTlvValues ( tempExponent ) ;
106 byte [ ] tempModulus = tempKey . getModulus ( ) . toByteArray ( ) ;
107 this . PublicModulus . i n i t i a l i s a t i o n P T L V ( this . PublicModulusTag ,
108 ( tempModulus . l e n g t h − 1) ) ;
109 this . PublicModulus . setTlvValues ( tempModulus , 1 , ( tempModulus . l e n g t h −
110 1) ) ;
111 S P S i g n a t u r e C e r t i f i c a t e . addPTLV( this . PublicExponent ) ;
112 S P S i g n a t u r e C e r t i f i c a t e . addPTLV( this . PublicModulus ) ;
113 }
114 public void i n i t i a l i s e P r o t o c o l ( ) {
115 try {
116 this . SPDHChanllenger . setTlvValues
117 ( this . myProtocolHelperObject . GenerateDHPublicValue ( ) ) ;
118 this . MessageHandler . addPTLV( this . SPDHChanllenger ) ;
119 } catch ( Exception cE ) {
120 System . out . p r i n t l n (
121 " Error ProtocolHandler . i n i t i a l i s e P r o t o c o l Option
= 1 , : " + cE . g e t C l a s s ( ) . getName ( ) ) ;
122 }
123 }
124 public byte [ ] outMessageProcessing ( int Counter ) {
125 i f ( Counter == 1) {
126 try {
127 this . SPRandomNumber . setTlvValues
128 ( this . myProtocolHelperObject . getRandomNumber ( ) ) ;
129 this . MessageHandler . addPTLV( this . SPRandomNumber) ;
130 byte [ ] temp = new byte [ ( this . SCIP . l e n g t h +
131 this . SPDHChanllenger . getValueLength ( ) +
132 this . SPRandomNumber . getValueLength ( ) ) ] ;
133 System . arraycopy ( this . SPDHChanllenger . getValueBytes ( ) , 0 , temp , 0 ,
134 this . SPDHChanllenger . getValueLength ( ) ) ;
352