A new distinguisher for clock controlled stream ciphers

被引：0

作者：

Englund, H ^{[1
]}

Johansson, T ^{[1
]}

机构：

[1] Lund Univ, Dept Informat Technol, S-22100 Lund, Sweden

来源：

FAST SOFTWARE ENCRYPTION | 2005年 / 3557卷

关键词：

D O I：

暂无

中图分类号：

TP31 [计算机软件];

学科分类号：

081202 ; 0835 ;

摘要：

In this paper we present a distinguisher targeting towards irregularly clocked filter generators. The attack is applied on the irregularly. clocked stream cipher called LILI-II. LILI-II is the successor of the cipher LILI-128 and its design was published in [1]. There have been no known attacks better than exhaustive key search on LILI-II. Our attack is-the first of this kind that distinguishes the cipher output from a random source using 2(103) bits of keystream using computational complexity of approximately 2(103) operations.

引用

页码：181 / 195

页数：15

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