Title :
A Co-cheating Prevention Visual Cryptography Scheme
Author :
Yu, Bin ; Lu, Jin-Yuan ; Fang, Li-Guo
Author_Institution :
Zhengzhou Inf. Sci. & Technol. Inst., Zhengzhou, China
Abstract :
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 simultaneously, with designed special verification shares. Since the scheme idea is different from previous ones, the pixel expansion is small and the recovered secret image is good for viewing.
Keywords :
cryptography; image coding; checking efficiency; co-cheating prevention visual cryptography scheme; trusty third party; Color; Cryptography; Image reconstruction; Information science; Pixel; Stacking; Virtual colonoscopy; co-cheating; trusty third party; verification shares; visual cryptography;
Conference_Titel :
Information and Computing (ICIC), 2010 Third International Conference on
Conference_Location :
Wuxi, Jiang Su
Print_ISBN :
978-1-4244-7081-5
Electronic_ISBN :
978-1-4244-7082-2
DOI :
10.1109/ICIC.2010.310
