Abstract
Pseudorandom number generation (PRNG) is the main security tool in low-cost passive radio-frequency identification (RFID) technologies, such as EPC Gen2. We present a lightweight PRNG design for low-cost passive RFID tags, named J3Gen. J3Gen is based on a linear feedback shift register (LFSR) configured with multiple feedback polynomials. The polynomials are alternated during the generation of sequences via a physical source of randomness. J3Gen successfully handles the inherent linearity of LFSR based PRNGs and satisfies the statistical requirements imposed by the EPC Gen2 standard. A hardware implementation of J3Gen is presented and evaluated with regard to different design parameters, defining the key-equivalence security and nonlinearity of the design. The results of a SPICE simulation confirm the power-consumption suitability of the proposal. © 2013 by the authors; licensee MDPI, Basel, Switzerland.
Original language | English |
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Pages (from-to) | 3816-3830 |
Journal | Sensors |
Volume | 13 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1 Jan 2013 |
Keywords
- EPC Gen2
- LFSR
- Multiple-polynomial
- PRNG
- RFID
- Security