Improvement of a security enhanced one-time mutual authentication and key agreement scheme

Abstract

So far, many one-time password based authentication schemes have been proposed; however, none is secure enough. In 2004, W.C.Ku proposed hash-based strong-password based authentication scheme without using smart card that is vulnerable to the password guessing attack, not achieving mutual authentication and key agreement. In this paper, we propose a new improved version of Ku’s scheme that is eliminated these weaknesses.