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Journal of Electronic Imaging

New approach to image encryption
Author(s): Trees-Juen Chuang; Ja-Chen Lin
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Paper Abstract

A new cryptographic method for encrypting still images is proposed. This method is designed on the basis of the base-switching lossless image compression algorithm. The method therefore simultaneously possesses both image encryption and lossless compression abilities. A given image is first partitioned into nonoverlapping fixed-size subimages, and each subimage will then have its own base value. These subimages are then encoded and encrypted one by one according to the base values. By choosing the function to encrypt the base value, there are (128!)t [or (128!)3t] possible ways to encrypt a gray-scaled (color) image if t layers are used in the encryption system. The theoretical analysis needed to support the proposed encryption method is provided, and the experimental results are also presented.

Paper Details

Date Published: 1 April 1998
PDF: 7 pages
J. Electron. Imaging. 7(2) doi: 10.1117/1.482651
Published in: Journal of Electronic Imaging Volume 7, Issue 2
Show Author Affiliations
Trees-Juen Chuang, National Chiao Tung Univ. (Taiwan)
Ja-Chen Lin, National Chiao Tung Univ. (Taiwan)

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