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摘要:
The nonlinear filter Boolean function of LILI-128 stream cipher generator is studied in this paper. First we measure the complexity of the stream ciphers sequence of LILI-128 stream cipher generator and obtain the shortest bit stream sequence reconstructed Boolean function of nonlinear filter in LILI-128 stream cipher generator. Then the least nonlinear Boolean function of generating stream cipher sequence is reconstructed by clusterig, nonlinear predictive and nonlinear synchronization from shortest bit stream sequence. We have verified the correctness of our reconstruction result by simulating the block diagram of Lili-128 keystream generator using our getting Boolean function and implement designers’ reference module of Lili-128 stream cipher public online, and two methods produce the same synchronous keystream sequence under same initial state, so that our research work proves that the nonlinear Boolean function of LILI-128 stream cipher generator is successfully broken.
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篇名 The Nonlinear Filter Boolean Function of LILI-128 Stream Cipher Generator Is Successfully Broken Based on the Complexity of Nonlinear 0 1 Symbol Sequence
来源期刊 电路与系统(英文) 学科 数学
关键词 LILI-128 STREAM CIPHER CLOCK Control BOOLEAN Function COMPLEXITY ATTACK
年,卷(期) 2013,(2) 所属期刊栏目
研究方向 页码范围 165-168
页数 4页 分类号 O1
字数 语种
DOI
五维指标
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LILI-128
STREAM
CIPHER
CLOCK
Control
BOOLEAN
Function
COMPLEXITY
ATTACK
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研究分支
研究去脉
引文网络交叉学科
相关学者/机构
期刊影响力
电路与系统(英文)
月刊
2153-1285
武汉市江夏区汤逊湖北路38号光谷总部空间
出版文献量(篇)
286
总下载数(次)
0
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