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- Title
Authentication and cross-recovery for multiple images.
- Authors
Yu-Jie Chang; Sian-Jheng Lin; Ja-Chen Lin
- 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 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.
- Subjects
AUTHENTICATION (Law); NON-contentious jurisdiction; CONTRACTS; LEGAL documents
- Publication
Journal of Electronic Imaging, 2008, Vol 17, Issue 4, p43007
- ISSN
1017-9909
- Publication type
Article
- DOI
10.1117/1.2991410