Improving security of an image encryption algorithm based on chaotic circular shift

Weihai Li; Yuan Yuan

doi:10.1109/ICSMC.2009.5346875

Improving security of an image encryption algorithm based on chaotic circular shift

Weihai Li^*, Yuan Yuan

^*Corresponding author for this work

Computer Science Research Group

Research output: Chapter in Book/Published conference output › Conference publication

Abstract

An image encryption algorithm based on chaotic circular bit shift is proposed recently. This paper analyses the security of this algorithm and point out that the key space is not as large as they alleged and the algorithm can not resist chosenplaintext attack or difference attack. The amount of chosenplaintexts to carry out an attack is very few. This paper also introduces two methods to improve its security by changing chaotic sequences generators, altering orders of permutation and substitution, and applying feedback link mode. The improved algorithm has variable key space and has very good avalanche effect to resist chosen-plaintext attacks, chosen-ciphertext attacks, or difference attacks. The computation cost of improved algorithm is very low.

Original language	English
Title of host publication	Conference Proceedings - IEEE International Conference on Systems, Man and Cybernetics
Publisher	IEEE
Pages	3694-3698
Number of pages	5
ISBN (Print)	9781424427949
DOIs	https://doi.org/10.1109/ICSMC.2009.5346875
Publication status	Published - 1 Dec 2009
Event	2009 IEEE International Conference on Systems, Man and Cybernetics, SMC 2009 - San Antonio, TX, United Kingdom Duration: 11 Oct 2009 → 14 Oct 2009

Conference

Conference	2009 IEEE International Conference on Systems, Man and Cybernetics, SMC 2009
Country/Territory	United Kingdom
City	San Antonio, TX
Period	11/10/09 → 14/10/09

Keywords

Attack
Chaotic-based encryption
Circular bit shift
Image encryption
Security

Access to Document

10.1109/ICSMC.2009.5346875

Cite this

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title = "Improving security of an image encryption algorithm based on chaotic circular shift",

abstract = "An image encryption algorithm based on chaotic circular bit shift is proposed recently. This paper analyses the security of this algorithm and point out that the key space is not as large as they alleged and the algorithm can not resist chosenplaintext attack or difference attack. The amount of chosenplaintexts to carry out an attack is very few. This paper also introduces two methods to improve its security by changing chaotic sequences generators, altering orders of permutation and substitution, and applying feedback link mode. The improved algorithm has variable key space and has very good avalanche effect to resist chosen-plaintext attacks, chosen-ciphertext attacks, or difference attacks. The computation cost of improved algorithm is very low.",

keywords = "Attack, Chaotic-based encryption, Circular bit shift, Image encryption, Security",

author = "Weihai Li and Yuan Yuan",

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doi = "10.1109/ICSMC.2009.5346875",

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Li, W & Yuan, Y 2009, Improving security of an image encryption algorithm based on chaotic circular shift. in Conference Proceedings - IEEE International Conference on Systems, Man and Cybernetics., 5346875, IEEE, pp. 3694-3698, 2009 IEEE International Conference on Systems, Man and Cybernetics, SMC 2009, San Antonio, TX, United Kingdom, 11/10/09. https://doi.org/10.1109/ICSMC.2009.5346875

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AU - Yuan, Yuan

PY - 2009/12/1

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N2 - An image encryption algorithm based on chaotic circular bit shift is proposed recently. This paper analyses the security of this algorithm and point out that the key space is not as large as they alleged and the algorithm can not resist chosenplaintext attack or difference attack. The amount of chosenplaintexts to carry out an attack is very few. This paper also introduces two methods to improve its security by changing chaotic sequences generators, altering orders of permutation and substitution, and applying feedback link mode. The improved algorithm has variable key space and has very good avalanche effect to resist chosen-plaintext attacks, chosen-ciphertext attacks, or difference attacks. The computation cost of improved algorithm is very low.

AB - An image encryption algorithm based on chaotic circular bit shift is proposed recently. This paper analyses the security of this algorithm and point out that the key space is not as large as they alleged and the algorithm can not resist chosenplaintext attack or difference attack. The amount of chosenplaintexts to carry out an attack is very few. This paper also introduces two methods to improve its security by changing chaotic sequences generators, altering orders of permutation and substitution, and applying feedback link mode. The improved algorithm has variable key space and has very good avalanche effect to resist chosen-plaintext attacks, chosen-ciphertext attacks, or difference attacks. The computation cost of improved algorithm is very low.

KW - Attack

KW - Chaotic-based encryption

KW - Circular bit shift

KW - Image encryption

KW - Security

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T2 - 2009 IEEE International Conference on Systems, Man and Cybernetics, SMC 2009

Y2 - 11 October 2009 through 14 October 2009

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Improving security of an image encryption algorithm based on chaotic circular shift

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