Digital image encryption with chaotic map lattices

doi:10.1088/1674-1056/20/4/040506

Abstract This paper proposes a secure approach for encryption and decryption of digital images with chaotic map lattices. In the proposed encryption process, eight different types of operations are used to encrypt the pixels of an image and one of them will be used for particular pixels decided by the outcome of the chaotic map lattices. To make the cipher more robust against any attacks, the secret key is modified after encrypting each block of sixteen pixels of the image. The experimental results and security analysis show that the proposed image encryption scheme achieves high security and efficiency.

Keywords: image encryption image decryption chaotic map lattice cryptography spatiotemporal chaotic system

Received: 05 September 2010
Revised: 29 November 2010
Accepted manuscript online:

PACS:	05.45.-a	(Nonlinear dynamics and chaos)
	05.45.Gg	(Control of chaos, applications of chaos)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61001099 and 10971120) and the Foundation for the Author of National Excellent Doctoral Dissertation of China (Grant No. 200444).

Cite this article:

Sun Fu-Yan(孙福艳) and Lü Zong-Wang(吕宗旺) Digital image encryption with chaotic map lattices 2011 Chin. Phys. B 20 040506

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Digital image encryption with chaotic map lattices

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