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arXiv cs/0701069cs.CR
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使用离散对数查找低权重多项式倍数

Finding low-weight polynomial multiples using discrete logarithm

Frédéric Didier, Yann Laigle-Chapuy

摘要:

寻找二元多项式的低权倍数是流密码密码分析中的一个难题。解决这个问题的经典算法是基于时间记忆权衡。我们将提出一种改进的方法,使用离散对数,而不是直接表示所涉及的多项式。这给出了一个算法,改善了理论复杂度,而且在实践中也是非常灵活的。

英文摘要:

Finding low-weight multiples of a binary polynomial is a difficult problem arising in the context of stream ciphers cryptanalysis. The classical algorithm to solve this problem is based on a time memory trade-off. We will present an improvement to this approach using discrete logarithm rather than a direct representation of the involved polynomials. This gives an algorithm which improves the theoretical complexity, and is also very flexible in practice.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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