An Image Encryption Scheme Based on High Dimension Chaos System

This paper proposes a Rossler chaos system based image encryption scheme, which improves the security and performance over the conventional simple chaos system based ones. The balance and correlation properties of the time sequences generated by Rossler system are analyzed and a pre-process scheme i...

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Bibliographic Details
Published in2008 International Conference on Intelligent Computation Technology and Automation (ICICTA) Vol. 2; pp. 104 - 108
Main Authors Ying-yu Cao, Chong Fu
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2008
Subjects
Automation
Chaos
Cryptography
Electronic mail
Gray-scale
High performance computing
Image storage
Information science
Security
Streaming media
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Summary:This paper proposes a Rossler chaos system based image encryption scheme, which improves the security and performance over the conventional simple chaos system based ones. The balance and correlation properties of the time sequences generated by Rossler system are analyzed and a pre-process scheme is proposed, which makes the key stream have good statistical properties. Three initial parameters of Rossler system are combined together as one key, which greatly enlarges the key space under precision restricted condition. The encryption speed is also improved since the position permutation and grayscale substitution to one pixel can be done by one iteration operation. Besides, the encryption system is strong against adaptive parameter synchronous attack since it has more complicated structure than simple chaos system based ones. The experimental results indicate that the proposed scheme is more secure and efficient than conventional ones.
ISBN:0769533574
9780769533575
DOI:10.1109/ICICTA.2008.397