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J3Gen: a PRNG for low-cost passive RFID
Joan Melià-Seguí1, Joaquin Garcia-Alfaro, Jordi Herrera-Joancomartí
1Department of Communications and Information Technologies, Universitat Pompeu Fabra, Barcelona, Spain. joan.melia@upf.edu
Sensors (Basel, Switzerland)
|March 23, 2013
Summary
We developed J3Gen, a lightweight pseudorandom number generator (PRNG) for low-cost passive RFID tags. This design enhances security and meets EPC Gen2 standards, offering a practical solution for RFID systems.
Area of Science:
- Cryptography
- Electrical Engineering
- Computer Science
Background:
- Pseudorandom number generation (PRNG) is crucial for security in low-cost passive RFID technologies like EPC Gen2.
- Existing PRNGs often face challenges with linearity and meeting stringent standards.
Purpose of the Study:
- To introduce J3Gen, a novel lightweight PRNG tailored for low-cost passive RFID tags.
- To address the security limitations and statistical requirements of current RFID PRNGs.
Main Methods:
- J3Gen utilizes a linear feedback shift register (LFSR) with multiple, alternating feedback polynomials.
- A physical source of randomness is integrated to enhance sequence generation.
- Hardware implementation and SPICE simulations were performed for evaluation.
Main Results:
- J3Gen effectively mitigates the inherent linearity of LFSR-based PRNGs.
- The design satisfies the statistical requirements mandated by the EPC Gen2 standard.
- SPICE simulations confirm the low power consumption suitable for passive RFID tags.
Conclusions:
- J3Gen offers a secure and efficient PRNG solution for low-cost passive RFID applications.
- The design balances security, performance, and power efficiency, meeting industry standards.
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