Chun-Ta Li, Cheng-Chi Lee, Chi-Yao Weng, Chun-I Fan, Vol. 7, No. 1, January 29, 2013
10.3837/tiis.2013.01.008

• identity
• key agreement
• Password
• smart card
• Multi-Server Architecture
• user anonymity
• User Authentication

Chi-Yao Weng, Shiuh-Jeng WANG, Jonathan Liu, Dushyant Goyal, Vol. 6, No. 4, April 24, 2012
10.3837/tiis.2012.04.017

• Reversible data hiding
• Steganography
• histogram shifting