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» Nonlinear Equivalence of Stream Ciphers
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ICISC
2004
132views Cryptology» more  ICISC 2004»
14 years 7 days ago
Dragon: A Fast Word Based Stream Cipher
This paper presents Dragon, a new stream cipher constructed using a single word based non-linear feedback shift register and a nonlinear filter function with memory. Dragon uses a ...
Kevin Chen, Matthew Henricksen, William Millan, Jo...
SACRYPT
2005
Springer
138views Cryptology» more  SACRYPT 2005»
14 years 4 months ago
On the (Im)Possibility of Practical and Secure Nonlinear Filters and Combiners
A vast amount of literature on stream ciphers is directed to the cryptanalysis of LFSR-based filters and combiners, resulting in various attack models such as distinguishing attac...
An Braeken, Joseph Lano
FSE
2004
Springer
84views Cryptology» more  FSE 2004»
14 years 4 months ago
Vulnerability of Nonlinear Filter Generators Based on Linear Finite State Machines
We present a realization of an LFSM that utilizes an LFSR. This is based on a well-known fact from linear algebra. This structure is used to show that a previous attempt at using a...
Jin Hong, Dong Hoon Lee 0002, Seongtaek Chee, Pala...
FSE
2006
Springer
95views Cryptology» more  FSE 2006»
14 years 2 months ago
Cryptanalysis of Achterbahn
We present several attacks against Achterbahn, one of the new stream ciphers proposed to the eSTREAM competition. Our best attack breaks the reduced version of the cipher with comp...
Thomas Johansson, Willi Meier, Frédé...
IJWMC
2007
66views more  IJWMC 2007»
13 years 10 months ago
Grain: a stream cipher for constrained environments
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...
Martin Hell, Thomas Johansson, Willi Meier