Grain - A stream cipher for constrained environments

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Abstract

A new stream cipher, Grain, is proposed. The design targets hardware environments where gate count, power consumption and memory is very limited. It is based on two shift registers and a non-linear output function. The cipher has the additional feature that the speed can be increased at the expense of extra hardware. The key size is 80 bits and no attack faster than exhaustive key search has been identified. The hardware complexity and throughput compares favourably to other hardware oriented stream ciphers like E0 and A5/1.

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  • Electrical Engineering, Electronic Engineering, Information Engineering
Original languageEnglish
Pages (from-to)86-93
JournalInternational Journal of Wireless and Mobile Computing
Volume2
Issue number1
Publication statusPublished - 2007
Publication categoryResearch
Peer-reviewedYes