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Title of Journal: J ElectronChina

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Abbravation: Journal of Electronics (China)

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SP Science Press

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DOI

10.1002/div.1875

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1993-0615

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Cryptanalysis of an image encryption scheme with a

Authors: Jing Wang Guoping Jiang Bing Lin
Publish Date: 2012/06/05
Volume: 29, Issue: 1-2, Pages: 82-93
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Abstract

Under Kerckhoff principle this paper discusses the security property of an image encryption scheme with a pseudorandom permutation Some findings on the security problems of the algorithm are reported in the following 1 If each row or column of the plainimage matrix is the same the receiver cannot decrypt correctly 2 Each plaintext word is correlated with single ciphertext word but independent of other ciphertext word which cannot meet the principles of algorithm designdiffusion and confusion 3 If the cycle numbers β are relatively small statistics attack can be used to reveal some visual information of any other plainimages encrypted with the same secret key Considering the above problems we propose an improved algorithm and then analyze its performance Theoretical analysis and simulation results show that the improved algorithm can obtain better cryptographic properties such as statistical characteristics difference characteristics and so onSupported by the National Natural Science Foundation of China No 60874091 the Six Projects Sponsoring Talent Summits of Jiangsu Province No SJ209006 the Foundation for Doctoral Program of High Education of China No 20103223110003 the Natural Science Foundation of Jiangsu Province No 08KJD510022 and the Postgraduate Scientific Innovation Project for Universities of Jiangsu Province No CXZZ110401


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