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TD-RECS Chaotic System Based Digital Image Encryption Algorithm Protecting from Shearing Attack

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1 Author(s)
Liao Qi-nan ; Dept. of Comput. & Inf. Manage., Guangxi Univ. of Finance & Econ., Nanning, China

In order to protect digital image's information and renew the image that is attacked by shearing, this paper presents a novel image encryption algorithm based on Tangent-Delay Ellipse Reflecting Cavity map System (TD-ERCS) chaos sequences. One of the TD-ERCS is used to shift the image's pixel position, another is used to alter the pixel value, so that the image will be scrambled and encrypted. While doing the decryption, a method, which is based on the neighboring pixels characteristic, is provided to recover the sheared image. Theoretical analysis and experimental results show that the algorithm has a large space of keys, a good encryption and decryption effects, a better security performance to statistical analysis and a strong ability against shearing.

Published in:

Network Computing and Information Security (NCIS), 2011 International Conference on  (Volume:1 )

Date of Conference:

14-15 May 2011