University of Surrey

Test tubes in the lab Research in the ATI Dance Research

On the security defects of an image encryption scheme

Li, CQ, Li, SJ, Asim, M, Nunez, J, Alvarez, G and Chen, GR (2009) On the security defects of an image encryption scheme Image and Vision Computing, 27 (9). 1371 - 1381. ISSN 0262-8856

[img]
Preview
PDF
IVC2009b.pdf - Accepted Version
Available under License : See the attached licence file.

Download (3572Kb)
[img]
Preview
PDF (licence)
SRI_deposit_agreement.pdf

Download (32Kb)

Abstract

This paper studies the security of a recently-proposed chaos-based image encryption scheme and points out the following problems: (1) there exist a number of invalid keys and weak keys, and some keys are partially equivalent for encryption/decryption; (2) given one chosen plain-image, a subkey K_{10} can be guessed with a smaller computational complexity than that of the simple brute-force attack; (3) given at most 128 chosen plain-images, a chosen-plaintext attack can possibly break the following part of the secret key: View the MathML source, which works very well when K_{10} is not too large; (4) when K_{10} is relatively small, a known-plaintext attack can be carried out with only one known plain-image to recover some visual information of any other plain-images encrypted by the same key.

Item Type: Article
Additional Information: NOTICE: this is the author’s version of a work that was accepted for publication in Image and Vision Computing. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Image and Vision Computing, 27 (9), August 2009, DOI 10.1016/j.imavis.2008.12.008.
Uncontrolled Keywords: Cryptanalysis, Image encryption, Chaos, Known-plaintext attack, Chosen-plaintext attack, EXTERNAL KEY, CRYPTANALYSIS, PROTECTION, MAPS
Related URLs:
Divisions: Faculty of Engineering and Physical Sciences > Computing Science
Depositing User: Symplectic Elements
Date Deposited: 16 May 2012 22:12
Last Modified: 23 Sep 2013 19:26
URI: http://epubs.surrey.ac.uk/id/eprint/532440

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800