1. Lamport, L. 1981, Password authentication with insecure communication, communication of the ACM, 24, 11, 770–772.
2. Lemon, R. E., Matyas, S. M., Meyar, C. H. 1981, Cryptographic authentication of time-invariant quantities, IEEE Trans. Commun. 29, 773–777.
3. Yen, S.M., Liao, K.H. 1997, Shared authentication token secure against replay weal key attacks, Inform. Process. Lett. 62, 77–80.
4. Hwang, M. S., Li, L. H. 2000, A new remote user authentication scheme using smart cards, IEEE Transaction on Consumer Electronics, 46, 1, 28–30.
5. Yoon, E. J., Ryu, E. K., Yoo, K. Y. 2004, Further improvement of an efficient password based remote user authentication scheme using smart cards, IEEE Transaction on Consumer Electronics, 50, 2, 612–614.