[IEEE 2010 Third International Conferenc
โ
Yu, Bin; Lu, Jin-Yuan; Fang, Li-Guo
๐
Article
๐
2010
๐
IEEE
โ 410 KB
Participants colluding is an important issue of cheater detectable visual cryptography schemes. Based on a trusty third party, a co-cheating prevention visual cryptography scheme (CCPVCS) is proposed in this paper. Checking efficiency is improved by verifying the truth of several shares simultaneous