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Paper 2013/266

L-P States of RC4 Stream Cipher

Jing Lv and Dongdai Lin

Abstract

The stream cipher RC4 was designed by R.Rivest in $1987$, and it is a widely deployed cipher. Many predictive states of RC4 for some special indices $i$ were presented in the last $20$ years. In this paper, we present several long term predictive states. These states increase the probability to guess part of the internal state in a known plaintext attack and present a cryptanalytic weakness of RC4. This paper also analyzes possible long term bias in the keystream and further propose a search method for the long term predictive states.

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Publication info
Published elsewhere. Unknown where it was published
Keywords
RC4Distinguishing attackpredictive statesL-P states
Contact author(s)
lvjing @ is iscas ac cn
History
2013-05-14: last of 2 revisions
2013-05-13: received
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Short URL
https://ia.cr/2013/266
License
Creative Commons Attribution
CC BY
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