An image encryption algorithm based on multi-dimensional orthogonal sequence

Authors:
Shuhong Li;Li Jing;Xing Gao
Affiliations:
College of Information, Henan University of Finance and Economics, Zhengzhou, Henan, P.R. China;College of Information, Henan University of Finance and Economics, Zhengzhou, Henan, P.R. China;C-TECH Co.Ltd, Shinjuku-ku, Tokyo, Japan
Venue:
MUSP'07 Proceedings of the 7th WSEAS International Conference on Multimedia Systems & Signal Processing
Year:
2007

Citing 6
Cited 1

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An image encryption using pseudo random bit generator based on a non-linear dynamic chaotic system

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Abstract

This paper proposes a new approach for image encryption using multi-dimensional orthogonal sequence. The sequence can provide an orthogonal transform for digital data, which is useful for image encryption. The key to decrypt is a set of the parameters to generate the sequence. For a gray scale image and a binary image, four different sequences are used to encrypt. Two of them are used to encrypt original image directly, the others are used for divided image. The experimental results show that this method has the characteristic of high security, because the number of the sequence is large and the digital image after encryption is noise-like and random Gaussian distribution.