SOSEMANUK: a fast software-oriented stream cipher

Abstract : Sosemanuk is a new synchronous software-oriented stream cipher, corresponding to Profile 1 of the ECRYPT call for stream cipher primitives. Its key length is variable between 128 and 256 bits. It ac- commodates a 128-bit initial value. Any key length is claimed to achieve 128-bit security. The Sosemanuk cipher uses both some basic design principles from the stream cipher SNOW 2.0 and some transformations derived from the block cipher SERPENT. Sosemanuk aims at improv- ing SNOW 2.0 both from the security and from the efficiency points of view. Most notably, it uses a faster IV-setup procedure. It also requires a reduced amount of static data, yielding better performance on several architectures.
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Submitted on : Friday, October 10, 2008 - 12:49:46 PM
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Come Berbain, Olivier Billet, Anne Canteaut, Nicolas Courtois, Henri Gilbert, et al.. SOSEMANUK: a fast software-oriented stream cipher. New Stream Cipher Designs - The eSTREAM finalists, Springer, pp.98-118, 2008, Lecture Notes in Computer Science, ⟨10.1007/978-3-540-68351-3_9⟩. ⟨hal-00328825⟩

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