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A Novel Image Encryption Approach using an Index based Chaos and DNA Encoding and its Performance Analysis

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International Journal of Computer Applications
© 2012 by IJCA Journal
Volume 47 - Number 23
Year of Publication: 2012
Authors:
Aradhana Soni
Anuja Kumar Acharya
10.5120/7493-9944

Aradhana Soni and Anuja Kumar Acharya. Article: A Novel Image Encryption Approach using an Index based Chaos and DNA Encoding and its Performance Analysis. International Journal of Computer Applications 47(23):1-6, June 2012. Full text available. BibTeX

@article{key:article,
	author = {Aradhana Soni and Anuja Kumar Acharya},
	title = {Article: A Novel Image Encryption Approach using an Index based Chaos and DNA Encoding and its Performance Analysis},
	journal = {International Journal of Computer Applications},
	year = {2012},
	volume = {47},
	number = {23},
	pages = {1-6},
	month = {June},
	note = {Full text available}
}

Abstract

Chaotic based image permutation and DNA encoding methods are used extensively in the area of the image encryption. This paper presents a hybrid approach of chaos and DNA encoding methods for image encryption. Chaos sequence is used for permutation and DNA Encoding is used for the diffusion process. Index based chaotic sequence is generated using 1D logistic map for permutation; and DNA sequence matrix is obtained by encoding the permuted image and index based chaotic sequence using DNA encoding rule. The DNA matrices are added using DNA addition operation to generate a new matrix. The generated matrix is decoded using DNA decoding rule and encrypted the image is produced. The proposed approach has two unique characteristics: (i) the way integer sequence is generated from the real valued chaotic logistic sequence; and (ii) the formation of the encoded DNA key matrix. The simulation results indicate that the proposed algorithm is highly secure, is resistant to statistical attacks, and has a larger key space.

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