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Open AccessReply

Revision of J3Gen and Validity of the Attacks by Peinado et al.

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Escuela Técnica Superior de Ingeniería de Telecomunicación, Universidad de Málaga, Málaga 29071, Spain
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Instituto de Tecnologías Físicas y de la Información, Consejo Superior de Investigaciones Científicas, Madrid 28006, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Leonhard M. Reindl
Sensors 2015, 15(5), 11988-11992; https://doi.org/10.3390/s150511988
Received: 7 May 2015 / Accepted: 18 May 2015 / Published: 22 May 2015
(This article belongs to the Section Sensor Networks)
This letter is the reply to: Remarks on Peinado et al.’s Analysis of J3Gen by J. Garcia-Alfaro, J. Herrera-Joancomartí and J. Melià-Seguí published in Sensors 2015, 15, 6217–6220. Peinado et al. cryptanalyzed the pseudorandom number generator proposed by Melià-Seguí et al., describing two possible attacks. Later, Garcia-Alfaro claimed that one of this attack did not hold in practice because the assumptions made by Peinado et al. were not correct. This letter reviews those remarks, showing that J3Gen is anyway flawed and that, without further information, the interpretation made by Peinado et al. seems to be correct. View Full-Text
Keywords: pseudo random number generators; security; cryptanalytic attack; Radio Frequency Identification; EPCglobal Gen2 pseudo random number generators; security; cryptanalytic attack; Radio Frequency Identification; EPCglobal Gen2
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Peinado, A.; Munilla, J.; Fúster-Sabater, A. Revision of J3Gen and Validity of the Attacks by Peinado et al.. Sensors 2015, 15, 11988-11992.

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