Changwook Kim

Learn More
Recently, Lee et al. [S. authenticated key agreement scheme, Appl. Math. Comput., in press] showed that Lee–Lee password-based authenticated key agreement scheme [N. Further improvement on the modified authenticated key agreement scheme, Appl. Math. Comput. 157 (2004) 729–733] is vulnerable to an off-line dictionary attack and proposed an improved scheme.(More)