NDLI: Update on Enocoro stream cipher

Content Provider	IEEE Xplore Digital Library
Author	Watanabe, D. Owada, T. Okamoto, K. Igarashi, Y. Kaneko, T.
Copyright Year	2010
Description	Author affiliation: Departure of Electronic Engineering, Tokyo University of Science, Noda-shi, Chiba (Okamoto, K.; Igarashi, Y.; Kaneko, T.) \|\| Systems Development Laboratory, Hitachi, Ltd., Yokohama-shi, Kanagawa, Japan (Watanabe, D.; Owada, T.)
Abstract	Enocoro is a family of stream ciphers proposed by Watanabe et al. in 2007. It consists of two algorithms called Enocoro-80 and Enocoro-128v1.1, whose key lengths are 80 bits and 128 bits respectively. In this paper, we show that Enocoro-128v1.1 is vulnerable against the related-key attack in which we assume a stronger attacker than one in the related-key differential attack. The attack is applicable with $2^{112}$ out of $2^{128}$ keys and the calculation complexity of the attack is about $2^{65}.$ Our attack is mainly of theoretical interest and do not present a threat to practical applications using Enocoro-128v1.1. In addition, we propose to update Enocoro-128v1.1 to Enocoro-128v2 where a patch has been applied to prevent the attack.
Starting Page	778
Ending Page	783
File Size	324811
Page Count	6
File Format	PDF
ISBN	9781424460168
e-ISBN	9781424460175
DOI	10.1109/ISITA.2010.5649627
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-10-17
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radiation detectors Hardware Generators Polynomials Complexity theory Encryption
Content Type	Text
Resource Type	Article

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