Authentication and cross-recovery for multiple images

Yu Jie Chang*, Sian Jheng Lin, Chih-Ching Lin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


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.

Original languageEnglish
Article number043007
JournalJournal of Electronic Imaging
Issue number4
StatePublished - 1 Dec 2008

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