RFID-enabled Extensible Authentication Framework and Its ...

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system. REAF can support any REAF-BC methods using different block ciphers (e.g. REAF-AES, REAF-mCrypton, REAF-HIGHT, and etc.). S does not have to fix its authentication method. S can select an REAF-BC method considering security requirements and levels of target applications. Not only REAF-BC but also REAF-HF methods are applicable under our propose authentication framework. Our REAF integrates heterogeneous RFID systems using different authentication methods into a single RFID system. 35
V. Conclusion In this thesis, we propose a novel authentication framework suitable for RFID systems. With our proposed REAF, various types of tags and authentication methods will be integrated into a single authentication system so that it can be easy to manage or extend the RFID system. Moreover, the owner of a tag can make the tag to use a specific authentication method appropriate for their application after ownership is transferred. We also analyze the existing RFID authentication protocols and propose new authentication methods for REAF using two different crypto- graphic primitives such as a hash function and a block cipher algorithm. REAF-HF method designed for logistical RFID applications is simple but prevents replay attacks and tags spoofing. It also solves the scal- ability problems of previous hash-based authentication protocols and does not require the synchronization of DB. Three kinds of REAF-BC methods provide different security properties for REAF. REAF-BC-TA authenticates tags with Identity Type and can be also useful for logistical RFID applications. Because REAF-BC-OA1 and REAF-BC-OA2 can protect owner’s privacy, they are suitable for consumer applications. Finally, we describe how REAF methods can be used to practical applications. Each of our REAF methods has different security properties and is flexibly applicable to logistical or consumer applications in REAF. We can select an REAF method considering security requirements and levels of target applications without considering interoperability. Con- sequently, we can expect that RFID systems using REAF will provide much better integrated services and improve the quality of our life. For the further research, we will demonstrate our proposed authentication framework through an implementation and verify its wide appli- 36
Page 1 and 2: A Thesis for the Degree of Master R
Page 3 and 4: RFID-enabled Extensible Authenticat
Page 5 and 6: M.S. 20042055 Abstract Sungbae Ji R
Page 7 and 8: Contents Abstract i Contents iii Li
Page 9 and 10: List of Figures 3.1 REAF Message Pa
Page 11 and 12: DB Database List of Abbreviations E
Page 13 and 14: EK(str) Block cipher encryption of
Page 15 and 16: 1.1 Motivation and Objectives (1) A
Page 17 and 18: encryptions at the tag side which m
Page 19 and 20: II. Preliminaries 2.1 Security and
Page 21 and 22: Table 2.1: RFID Applications Applic
Page 23 and 24: GEs, 8,400 GEs, and 7,300 GEs respe
Page 25 and 26: tags against cloning. The EnhancedT
Page 27 and 28: the inventory response is contradic
Page 29 and 30: An RFID reader relays messages betw
Page 31 and 32: Moreover, readers and APs are the i
Page 33 and 34: 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
Page 35 and 36: authentication is done successfully
Page 37 and 38: packets between the tag and the mid
Page 39 and 40: IV. REAF Methods and Applications I
Page 41 and 42: Table 4.1: Comparison with other Ha
Page 43 and 44: On receiving BC-OA1-Response, M dec
Page 45 and 46: Table 4.2: Security Properties of R
Page 47: 4.3 Applications In this section, w
Page 51 and 52: RFID 시스템을 위한 확장가
Page 53 and 54: References 1. EPCglobal Inc, EPC Ra
Page 55 and 56: quency Identification Systems, Secu
Page 57 and 58: Acknowledgement This thesis is the
Page 59 and 60: Name : Sungbae Ji Date of Birth : O
Page 61 and 62: Publications (1) 2007.02 지성배,

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