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» Two General Attacks on Pomaranch-Like Keystream Generators
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CISC
2005
Springer
120views Cryptology» more  CISC 2005»
14 years 1 months ago
Towards a General RC4-Like Keystream Generator
RC4 was designed in 1987 when 8-bit and 16-bit processors were commercially available. Today, most processors use 32-bit or 64bit words but using original RC4 with 32/64 bits is in...
Guang Gong, Kishan Chand Gupta, Martin Hell, Yassi...
ISW
2007
Springer
14 years 1 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
INDOCRYPT
2003
Springer
14 years 23 days ago
Analysis of Non-fortuitous Predictive States of the RC4 Keystream Generator
The RC4 stream cipher is the most widely used software based stream cipher. It is based on a secret internal state of N = 256 bytes and two pointers. This paper proposes an efficie...
Souradyuti Paul, Bart Preneel
CRYPTO
2003
Springer
156views Cryptology» more  CRYPTO 2003»
14 years 24 days ago
Fast Algebraic Attacks on Stream Ciphers with Linear Feedback
Many popular stream ciphers apply a filter/combiner to the state of one or several LFSRs. Algebraic attacks on such ciphers [10, 11] are possible, if there is a multivariate relat...
Nicolas Courtois
CRYPTO
2001
Springer
147views Cryptology» more  CRYPTO 2001»
14 years 2 days ago
Correlation Analysis of the Shrinking Generator
Abstract. The shrinking generator is a well-known keystream generator composed of two linear feedback shift registers, LFSR1 and LFSR2, where LFSR1 is clock-controlled according to...
Jovan Dj. Golic