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» A New Distinguisher for Clock Controlled Stream Ciphers
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FSE
2003
Springer
99views Cryptology» more  FSE 2003»
13 years 10 months ago
Rabbit: A New High-Performance Stream Cipher
Abstract. We present a new stream cipher, Rabbit, based on iterating a set of coupled nonlinear functions. Rabbit is characterized by a high performance in software with a measured...
Martin Boesgaard, Mette Vesterager, Thomas Pederse...
ISW
2007
Springer
13 years 11 months ago
New Weaknesses in the Keystream Generation Algorithms of the Stream Ciphers TPy and Py
The stream ciphers Py, Py6 designed by Biham and Seberry were promising candidates in the ECRYPT-eSTREAM project because of their impressive speed. Since their publication in Apri...
Gautham Sekar, Souradyuti Paul, Bart Preneel
CRYPTO
2004
Springer
154views Cryptology» more  CRYPTO 2004»
13 years 10 months ago
An Improved Correlation Attack Against Irregular Clocked and Filtered Keystream Generators
Abstract. In this paper we propose a new key recovery attack on irregular clocked keystream generators where the stream is filtered by a nonlinear Boolean function. We show that t...
Håvard Molland, Tor Helleseth
EUROCRYPT
2003
Springer
13 years 10 months ago
Algebraic Attacks on Stream Ciphers with Linear Feedback
A classical construction of stream ciphers is to combine several LFSRs and a highly non-linear Boolean function f. Their security is usually analysed in terms of correlation attack...
Nicolas Courtois, Willi Meier
FSE
2003
Springer
112views Cryptology» more  FSE 2003»
13 years 10 months ago
Cryptanalysis of SOBER-t32
Abstract. Sober-t32 is a candidate stream cipher in the NESSIE competition. Some new attacks are presented in this paper. A Guess and Determine attack is mounted against Sober-t32 ...
Steve Babbage, Christophe De Cannière, Jose...