In 2004, Kim, Huh, Hwang and Lee proposed an efficient key agreement protocol for secure authentication. In this paper, we shall show that their proposed protocol cannot resist th...
We investigate the composition of protocols that share a common secret. This situation arises when users employ the same password on different services. More precisely we study w...
Recently, Yeh et al. proposed an improved password authenticated key exchange scheme (YSYCT scheme) which is secure against undetectable on-line password guessing attacks and prov...
The key exchange protocol is one of the most elegant ways of establishing secure communication between pair of users by using a session key. The passwords are of low entropy, henc...