Introduction - If you have any usage issues, please Google them yourself
Abstract – Hwang and Li proposed the first remote user
authentication scheme using smart cards to solve the
problems of Lamport scheme. Unfortunately, Hwang and Li’s
scheme has some security weaknesses. First, Chan- Chang,
Shen- Lin- Hwang and then Chang-Hwang pointed out some
attacks on Hwang – Li’s scheme. This paper presents a new
remote user authentication scheme with forward secrecy,
which provides forward secrecy to the long term secret key of
the authentication server. This scheme is also secure against
Chan – Cheng and all the extended attacks1.