The following publications are possibly variants of this publication:
- Security Enhancement on an Improvement on Two Remote User Authentication Scheme Using Smart CardsHanCheng Hsiang, TienHo Chen, WeiKuan Shih. fgit 2009: 65-73 [doi]
- Security Improvement on a Remote User Authentication Scheme Using Smart CardsTien-Ho Chen, Han-Cheng Hsiang, Wei Kuan Shih. sersc-isa 2010: 9-16 [doi]
- An Improvement on Hsiang and Shih's Remote User Authentication Scheme Using Smart CardsChin-Ling Chen, Yu-Fan Lin, Neng-Chung Wang, Young-Long Chen. snpd 2011: 53-57 [doi]
- An Improvement on Remote User Authentication Schemes Using Smart CardsChin-Ling Chen, Yong-Yuan Deng, Yung-Wen Tang, Jung-Hsuan Chen, Yu-Fan Lin. computers, 7(1):9, 2018. [doi]