Security analysis of a multiple pseudorandom-bit generator based on a spatiotemporal chaotic map

In this paper we analyse the security of a multiple pseudorandom-bit generator based on the coupled map lattice and suggest an improved model. Utilizing the error function attack, the multiple pseudorandom-bit generators which can be realized by the three digitization methods are analysed and the ef...

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Bibliographic Details
Published in:Chinese physics B 2010-08, Vol.19 (8), p.163-170
Main Author: 王世红 李达
Format: Article
Language:English
Subjects:
Chaos theory
Digitization
Error functions
Generators
Lattices
Security
发生器
安全性分析
密钥空间
时空混沌
耦合映象
误差函数
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Summary:In this paper we analyse the security of a multiple pseudorandom-bit generator based on the coupled map lattice and suggest an improved model. Utilizing the error function attack, the multiple pseudorandom-bit generators which can be realized by the three digitization methods are analysed and the effective key spaces are estimated. We suggest an improved multiple pseudorandom-bit generator with 128-bit secret key, and analyse the key sensitivity and statistical properties of the system.
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/19/8/080505