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25
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EUROCRYPT
2007
Springer
166
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Cryptology
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EUROCRYPT 2007
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Differential Cryptanalysis of the Stream Ciphers Py, Py6 and Pypy
14 years 2 months ago
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www.ecrypt.eu.org
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
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