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FSE
2000
Springer
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14 years 3 months ago
Ciphertext Only Reconstruction of Stream Ciphers Based on Combination Generators
This paper presents an operational reconstruction technique of most stream ciphers. We primarily expose it for key-stream generators which consist of several linear feedback shift ...
Anne Canteaut, Eric Filiol
CRYPTO
2004
Springer
154views Cryptology» more  CRYPTO 2004»
14 years 4 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