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Journal of Electronic Imaging

Authentication and cross-recovery for multiple images
Author(s): Yu-Jie Chang; Sian-Jheng Lin; Ja-Chen Lin
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Paper Abstract

We propose a system with image authentication and cross-recovery ability to protect a group of n given digital images. The system is a (r,n) threshold scheme (r is a prespecified threshold satisfying 2≤r<n). Any r of these images can reconstruct the whole group of n images, but less than r images cannot. Therefore, the system has cross-recovery ability because if some [up to (n-r)] images in the group are destroyed or lost in a distributed storage scheme or transmission mission, the destroyed or lost can be rebuilt vividly by the mutual support of r survived members. The design is composed of compression, a two-layer sharing, cryptographic hash function, and information hiding.

Paper Details

Date Published: 1 October 2008
PDF: 12 pages
J. Electron. Imag. 17(4) 043007 doi: 10.1117/1.2991410
Published in: Journal of Electronic Imaging Volume 17, Issue 4
Show Author Affiliations
Yu-Jie Chang, National Chiao Tung Univ. (Taiwan)
Sian-Jheng Lin, National Chiao Tung Univ. (Taiwan)
Ja-Chen Lin, National Chiao Tung Univ. (Taiwan)

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