Enhanced Cryptography by Multiple Chaotic Dynamics | Zendy

Jianyong Chen | Zendy; Junwei Zhou | Zendy; KwokWo Wong | Zendy; Zhen Ji | Zendy

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Enhanced Cryptography by Multiple Chaotic Dynamics

Author(s) -

Jianyong Chen,

Junwei Zhou,

KwokWo Wong,

Zhen Ji

Publication year - 2011

Publication title -

mathematical problems in engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.262

H-Index - 62

eISSN - 1026-7077

pISSN - 1024-123X

DOI - 10.1155/2011/938454

Subject(s) - chaotic , plaintext , encryption , cryptography , key space , computer science , theoretical computer science , cipher , key (lock) , transposition cipher , vulnerability (computing) , watermarking attack , mathematics , deterministic encryption , running key cipher , algorithm , computer security , probabilistic encryption , artificial intelligence

A potential security vulnerability of embedding compression in a chaos-based cryptography is studied. Furthermore, a scheme for improving its security is proposed. This correspondence considers the use of multiple chaotic dynamics and drive chaotic trajectory by both plaintext sequence and initial values of a chaotic map. Chaotic trajectory is used for encryption that is never reused for different plaintext. This makes that scheme naturally resist chosen plaintext attack and cipher text-only attack. Its strong security is justified by the key space, key sensitivity, and tests of random number sequences. The results show that the security of the proposed scheme is stronger than the latest algorithm especially in resisting chosen plaintext attack, while its performance is not sacrificed

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