Cryptology ePrint Archive: Report 2004/376

Cryptanalysis of RCES/RSES Image Encryption Scheme

Shujun Li and Chengqing Li and Guanrong Chen and Kwok-Tung Lo

Abstract: Recently, a chaos-based image encryption scheme called RCES (also called RSES) was proposed. This paper analyzes the security of RCES, and points out that it is insecure against the known/chosen-plaintext attacks: the number of required known/chosen plain-images is only one or two. In addition, the security of RCES against the brute-force attack was overestimated. Both theoretical and experimental analyses are given to show the performance of the suggested known/chosen-plaintext attacks. The insecurity of RCES is due to its special design, which makes it a typical example of insecure image encryption schemes. Some lessons are drawn from RCES to show some common principles for ensuring the high level of security of an image encryption scheme.

Category / Keywords: applications / cryptanalysis, image encryption, RCES/RSES

Date: received 29 Dec 2004, last revised 27 Apr 2007

Contact author: hooklee75 at hotmail com

Available format(s): PDF | BibTeX Citation

Note: A number of modifications have been made to enhance the contents.

Version: 20070427:093004 (All versions of this report)

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