The following publications are possibly variants of this publication:
- Weakness and Improvement of the Smart Card Based Remote User Authentication Scheme with AnonymityYung-Cheng Lee. jise, 29(6):1121-1134, 2013. [doi]
- Robust smart-card-based remote user password authentication schemeBae-Ling Chen, Wen-Chung Kuo, Lih-Chyau Wuu. ijcomsys, 27(2):377-389, 2014. [doi]
- Cryptanalysis and improvement of a biometric and smart card based remote user authentication schemeChunyi Quan, Jaewook Jung, Jiye Kim, Qimin Sun, Donghoon Lee, Dongho Won. icuimc 2017: 50 [doi]
- Remote scheme for password authentication based on theory of quadratic residuesChin-Chen Chang, Sun-Min Tsu, Chien-Yuan Chen. comcom, 18(12):936-942, 1995. [doi]