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» Cryptanalysis of the Stream Cipher DECIM
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FSE
2006
Springer
95views Cryptology» more  FSE 2006»
13 years 9 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...
EUROCRYPT
2007
Springer
13 years 9 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
SACRYPT
2004
Springer
122views Cryptology» more  SACRYPT 2004»
13 years 11 months ago
Extending the Resynchronization Attack
Abstract. Synchronous stream ciphers need perfect synchronization between sender and receiver. In practice, this is ensured by a resync mechanism. Daemen et al. [10] first describ...
Frederik Armknecht, Joseph Lano, Bart Preneel
CCS
2006
ACM
13 years 9 months ago
Cryptanalysis of the "Grain" family of stream ciphers
Let us have an NLFSR with the feedback function g(x) and an LFSR with the generating polynomial f(x). The function g(x) is a Boolean function on the state of the NLFSR and the LFS...
Alexander Maximov
EUROCRYPT
1997
Springer
13 years 10 months ago
Cryptanalysis of Alleged A5 Stream Cipher
Jovan Dj. Golic