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Authentication and cross-recovery for multiple images

[+] Author Affiliations
Yu-Jie Chang

National Chiao Tung University, Department of Computer Science, Hsinchu, 300, Taiwan

Sian-Jheng Lin

National Chiao Tung University, Department of Computer Science, Hsinchu, 300, Taiwan

Ja-Chen Lin

National Chiao Tung University, Department of Computer Science, Hsinchu, 300, Taiwan

J. Electron. Imaging. 17(4), 043007 (October 14, 2008). doi:10.1117/1.2991410
History: Received February 01, 2008; Revised August 05, 2008; Accepted August 07, 2008; Published October 14, 2008
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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 2r<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.

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© 2008 SPIE and IS&T

Citation

Yu-Jie Chang ; Sian-Jheng Lin and Ja-Chen Lin
"Authentication and cross-recovery for multiple images", J. Electron. Imaging. 17(4), 043007 (October 14, 2008). ; http://dx.doi.org/10.1117/1.2991410


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