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      • Record: found
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      Remarks on Peinado et al.'s Analysis of J3Gen

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          Abstract

          Peinado et al. analyzed the security of the J3Gen pseudorandom number generator proposed by Melià-Seguí et al., and claimed weaknesses regarding its security properties. They also presented a deterministic attack based on the decimation of the J3Gen output sequences. We show that the assumptions made by Peinado et al. are not correct and that the proposed deterministic attack against J3Gen does not hold in practice.

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          EPCGen2 Pseudorandom Number Generators: Analysis of J3Gen

          Alberto Peinado, Jorge Munilla, Amparo Fúster-Sabater (2014)
          This paper analyzes the cryptographic security of J3Gen, a promising pseudo random number generator for low-cost passive Radio Frequency Identification (RFID) tags. Although J3Gen has been shown to fulfill the randomness criteria set by the EPCglobal Gen2 standard and is intended for security applications, we describe here two cryptanalytic attacks that question its security claims: (i) a probabilistic attack based on solving linear equation systems; and (ii) a deterministic attack based on the decimation of the output sequence. Numerical results, supported by simulations, show that for the specific recommended values of the configurable parameters, a low number of intercepted output bits are enough to break J3Gen. We then make some recommendations that address these issues.
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            EPC Radio-Frequency Identity Protocols Class-1 Generation-2 UHF RFID Protocol for Communications at 860 MHz–960 MHz

            E. Global (2008)
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              J3Gen: A PRNG for Low-Cost Passive RFID

              Joan Melià-Seguí, Joaquin Garcia-Alfaro, Jordi Herrera-Joancomartí (2013)
              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.
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                Author and article information

                Contributors
                Leonhard M. Reindl: Role: Academic Editor
                Journal
                Journal ID (nlm-ta): Sensors (Basel)
                Journal ID (iso-abbrev): Sensors (Basel)
                Title: Sensors (Basel, Switzerland)
                Publisher: MDPI
                ISSN (Electronic): 1424-8220
                Publication date Collection: March 2015
                Publication date (Electronic): 13 March 2015
                Volume: 15
                Issue: 3
                Pages: 6217-6220
                Affiliations
                [1 ] Institut Mines-Telecom, Telecom SudParis, CNRS Samovar UMR 5157, 9 Rue Charles Fourier, 91000 Evry, France
                [2 ] Department of Information and Communications Engineering, Universitat Autònoma de Barcelona, Edifici Q, Campus de Bellaterra, 08193 Bellaterra, Spain; E-Mail: jordi.herrera@ 123456uab.cat
                [3 ] Internet Interdisciplinary Institute, Universitat Oberta de Catalunya, Roc Boronat 117, 08018 Barcelona, Spain; E-Mail: melia@ 123456uoc.edu
                Author notes
                [* ] Author to whom correspondence should be addressed; E-Mail: joaquin.garcia_alfaro@ 123456telecom-sudparis.eu ; Tel.: +33-1-60-76-40-40; Fax: +33-1-60-76-42-91.
                Article
                Publisher ID: sensors-15-06217
                DOI: 10.3390/s150306217
                PMC ID: 4435199
                PubMed ID: 25781510
                SO-VID: 58fe024a-01c2-41da-8919-05e3eea9cb24
                Copyright © © 2015 by the authors; licensee MDPI, Basel, Switzerland.
                License:

                This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license ( http://creativecommons.org/licenses/by/4.0/).

                History
                Date received : 04 December 2014
                Date accepted : 09 March 2015
                Categories
                Subject: Letter

                ScienceOpen disciplines: Biomedical engineering
                Keywords: network security,wireless security,cryptography
                Data availability:
                ScienceOpen disciplines: Biomedical engineering
                Keywords: network security, wireless security, cryptography

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