A flexible remote user authentication scheme using smart cards

Abstract

In 1999, Hwang and Li proposed a new user authentication scheme using smart cards. The scheme does not need any password or verification table. Later, Sun proposed an efficient remoteuse authentication scheme to improve the efficiency of the Hwang-Li scheme. However, these two schemes do not allow users to freely choose and change their passwords. In this article, we shall propose a simple and efficient remote user authentication scheme that allows users to freely choose and change their passwords without significantly increasing the computation cost.

Password Authenticated Key Exchange and Protected Password Change Protocols

“…However, passwords narrow down the possibilities and make it easier for attackers to mount guessing attacks [3]. Most of these types of schemes [9][10][11] require symmetric cryptosystems, and others require public-key cryptosystems [12] to protect passwords which are transferred over an unsecured network.…”

A Novel Smart-Card Based Authentication Scheme Using Proactive Secret Sharing

“…However, M. S. Hwang found the weakness [2] of T. C. Wu's scheme and then improved the security in the authentication process [3] by using ElGamal's public key cryptosystem [4]. Many modified methods [5]- [10] based on Hwang 's scheme were presented to enhance the security.…”

An Improved Bilateral Remote User Authentication Scheme that Preserves User Anonymity using Symmetric Cryptology

“…Also, smart card is due to their low computation cost and convenient for the authentication purpose [1][2][3][4][5][6][7][8][9]. However, most of these schemes are based on static ID and have some flaws such as stolen, replay attack, insider attack, and impersonation attack, tracing attack.…”