A User Centric Security Model for Tamper-Resistant Devices

C.3 Attestation Protocol
56 private byte [ ] UserIdentityTag = {( byte ) 0x5F , ( byte ) 0x03 } ;
57 private byte [ ] S C P r o t o c o l I n i t i a t o r T a g = {(byte ) 0xA1 , ( byte ) 0xB2 } ;
58 public ConstructedTLV MessageHandler = ConstructedTLV . getConstructedTLV
59 ( MessageHandlerTagOne ) ;
60 private ConstructedTLV C MSignatureCertificate =
61 ConstructedTLV . getConstructedTLV ( CMSignatureCertTag ) ;
62 private PrimitiveTLV CMIdentityTLV = PrimitiveTLV . getPrimitiveTLV
63 ( CMIdentityTag , CMIdentity ) ;
64 private PrimitiveTLV CMSigVerificationKey = PrimitiveTLV . getPrimitiveTLV
65 ( this . CMSigVerificationKeyTag ) ;
66 private PrimitiveTLV CMRandomNumber = PrimitiveTLV . getPrimitiveTLV
67 ( this . CMRandomNumberTag) ;
68 private PrimitiveTLV CMCookie = PrimitiveTLV . getPrimitiveTLV
69 ( this . CMCookieTag ) ;
70 private ConstructedTLV EncryptedData = ConstructedTLV . getConstructedTLV
71 ( this . EncryptedDataTag ) ;
72 private PrimitiveTLV MACedData = PrimitiveTLV . getPrimitiveTLV
73 ( this . MACedDataTag) ;
74 private PrimitiveTLV SignedData = PrimitiveTLV . getPrimitiveTLV
75 ( this . SignedDataTag ) ;
76 private PrimitiveTLV PublicExponent = PrimitiveTLV . getPrimitiveTLV
77 ( this . PublicExponentTag ) ;
78 private PrimitiveTLV PublicModulus = PrimitiveTLV . getPrimitiveTLV
79 ( this . PublicModulusTag ) ;
80 private PrimitiveTLV SCRandomNumber = PrimitiveTLV . getPrimitiveTLV
81 ( this . SCRandomNumberTag) ;
82 private PrimitiveTLV SCIdentity = PrimitiveTLV . getPrimitiveTLV
83 ( SCIdentityTag ) ;
84 private ConstructedTLV S C U s e r C e r t i f i c a t e =
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 PrimitiveTLV S C P r o t o c o l I n i t i a t o r = PrimitiveTLV . getPrimitiveTLV
93 ( this . S C P r o t o c o l I n i t i a t o r T a g ) ;
94 private P r o t o c o l H e l p e r C l a s s myProtocolHelperObject = new
95 P r o t o c o l H e l p e r C l a s s ( ) ;
96 private byte [ ] mySessionEncryptionKey = new byte [ 1 6 ] ;
97 private byte [ ] mySessionMacKey = new byte [ 1 6 ] ;
98 private PublicKey SCUserVerificationKey = null ;
99 private PublicKey SCVerificationKey = null ;
100 public P r o t o c o l H a n d l e r A t t e s t a t i o n ( ) {
101 myProtocolHelperObject . p r o t o c o l I n i t i a l i s e ( ) ;
102 RSAPublicKey tempKey = ( RSAPublicKey )
103 myProtocolHelperObject . getPublicKey ( ) ;
104 byte [ ] tempExponent = tempKey . getPublicExponent ( ) . toByteArray ( ) ;
105 this . PublicExponent . i n i t i a l i s a t i o n P T L V ( this . PublicExponentTag ,
106 tempExponent . l e n g t h ) ;
284