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RFID Paper presentation The Security of EPC Gen2 Compliant RFID Protocols Source ： Applied Cryptography and Network Security, VOL. 5037, 2008, pp. 490-506.

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Presentation on theme: "RFID Paper presentation The Security of EPC Gen2 Compliant RFID Protocols Source ： Applied Cryptography and Network Security, VOL. 5037, 2008, pp. 490-506."— Presentation transcript:

1 RFID Paper presentation The Security of EPC Gen2 Compliant RFID Protocols Source ： Applied Cryptography and Network Security, VOL. 5037, 2008, pp. 490-506 Authors :Mike Burmester, Breno De Medeiros Speaker : Chia- Hung Chang Date : 2012-11-25 A Practical Approach for Enhancing Security of EPC global RFID Gen2 Tag Source ： Future Generation Communication and Networking, VOL. 1, NO. 5, Dec 2007, pp.436-441 Authors :Jaemin Park

2 Outline Introduction Relate Work Proposed Scheme Security analysis Conclusion & Future Work 2

3 Introduction(1/2) 3 Sever Tag Reader (3)Authenticate (1)Request (2)Response (4) Forward phase

4 Introduction(2/2) Tag in C1Gen2 only can use  Pseudo-random number generator(PRNG) - 16 bits  Cyclic Redundancy Code(CRC) - 16 bits 4

5 Protocol notations 5 Tag Reader Tag issuing system Backend sever with DB RFID code (eg. EPC) PC bits Access password Kill password Random numbers

6 6 Relate Work - Duc-Park-Lee-Kim RFID Protocol [10](1/2)

7 7 Relate Work - Duc-Park-Lee-Kim RFID Protocol [10] (2/2)

8 8 Relate Work - Chien-Chen RFID Protocol [9](1/2)

9 9 Relate Work - Chien-Chen RFID Protocol [9] (2/2)

10 Proposed Scheme1 - Scheme design  3 Trivial protocol TRAP 0 - RNG TRAP 1 - Modify RNG TRAP 2 - Anonymity (TRAP 3  Class2 Gen2) 10

11 11 Proposed Scheme1 - TRAP 0

12 Proposed Scheme1 - TRAP 1(1/2) 12  Pseudo-random number generator(PRNG)  Concerns exhaustive-key attacks ‚ Concerns related-key attacks  Pseudo-random function (PRF)

13 13 Proposed Scheme1 - TRAP 1(2/2)

14 14 Proposed Scheme1 - TRAP 2*

15 A Practical Approach for Enhancing Security of EPC global RFID Gen2 Tag Source ： Future Generation Communication and Networking, VOL. 1, NO. 5, Dec 2007, pp.436-441 Authors :Jaemin Park

16 Proposed Scheme2 - Setting 16

17 17 Proposed Scheme2 - Authenticate (1/2)

18 18 Proposed Scheme2 - Authenticate (2/2)

19 Comparison - A Practical Approach for Enhancing Security of EPC global RFID Gen2 Tag 19

20 Conclusions Two papers can both follow C1Gen2 Both can defense replay attack and have anonymity 20

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