New approach to image encryption

Trees-Juen Chuang; Ja-Chen Lin

doi:10.1117/1.482651

1 April 1998 New approach to image encryption

Trees-Juen Chuang, Ja-Chen Lin

Journal of Electronic Imaging, Vol. 7, Issue 2, (April 1998). https://doi.org/10.1117/1.482651

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.

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Trees-Juen Chuang and Ja-Chen Lin "New approach to image encryption," Journal of Electronic Imaging 7(2), (1 April 1998). https://doi.org/10.1117/1.482651

Published: 1 April 1998

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