Enhancements to A Lightweight RFID Authentication Protocol

Details Enhancements to A Lightweight RFID Authentication Protocol Enhancements to A Lightweight RFID Authentication Protocol

2008-10-18

arxiv.org/abs/0810.3345v3

Computer Science

Cryptography and Security

9 pages, 2 figures

Scientific paper

Vajda and Buttyan (VB) proposed a set of five lightweight RFID authentication protocols. Defend, Fu, and Juels (DFJ) did cryptanalysis on two of them - XOR and SUBSET. To the XOR protocol, DFJ proposed repeated keys attack and nibble attack. In this paper, we identify the vulnerability existed in the original VB's successive session key permutation algorithm. We propose three enhancements to prevent DFJ's attacks and make XOR protocol stronger without introducing extra resource cost.

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