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EUROCRYPT
2007
Springer
13 years 8 months ago
Differential Cryptanalysis of the Stream Ciphers Py, Py6 and Pypy
This paper shows that Py and Pypy are practically insecure. If one key is used with about 216 IVs with special differences, with high probability two identical keystreams will appe...
Hongjun Wu, 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
ASIACRYPT
2005
Springer
13 years 10 months ago
A Practical Attack on the Fixed RC4 in the WEP Mode
In this paper we revisit a known but ignored weakness of the RC4 keystream generator, where secret state info leaks to the generated keystream, and show that this leakage, also kno...
Itsik Mantin
PKC
2007
Springer
219views Cryptology» more  PKC 2007»
13 years 11 months ago
Cryptanalysis of the Paeng-Jung-Ha Cryptosystem from PKC 2003
At PKC 2003 Paeng, Jung, and Ha proposed a lattice based public key cryptosystem(PJH). It is originated from GGH, and designed as a hybrid of GGH and NTRUEncrypt in order to reduce...
Daewan Han, Myung-Hwan Kim, Yongjin Yeom
ASIACRYPT
2007
Springer
13 years 11 months ago
A Key Recovery Attack on Edon80
Edon80 is a recent stream cipher design that has advanced to the third and last phase of the eSTREAM project. It has remained unbroken and untweaked since it was designed and submi...
Martin Hell, Thomas Johansson