Computer Science – Cryptography and Security
Scientific paper
2008-10-10
New Stream Cipher Designs - The eSTREAM finalists (2008) 98-118
Computer Science
Cryptography and Security
Scientific paper
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.
Berbain Come
Billet Olivier
Canteaut Anne
Courtois Nicolas
Gilbert Henri
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