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A password authentication scheme with secure password updating
However, in this paper, it is pointed out that Chen-Lee’s scheme is vulnerable to off-line password guessing, replay and impersonation attacks when the smart card is lost or stolen. Abstract: In practice, the single sign-on system is likely to suffer password attack and replay attack, etc.
Among remote authentication protocol, password-based authenticated key exchange protocol is most popular since the two communication entities only shared a human-memorable password can establish a session key which is used to protected their later communication over an insecure networks.
Recently, Xu Zhu proposed improved password-based protocol using smart card based on previous research.
Also, we propose an improved scheme to withstand these weaknesses, while preserving their merits, even if the secret information stored in the smart card is revealed.
As a result of analysis, the proposed scheme is secure against user impersonation attack, server masquerading attack, password guessing attack and does provide user anonymity.
At the same time, the scheme implements the connect authentication between the client and application servers.
Abstract: Increasing number of network applications require authentication of the user's identity which is the first step to ensure security.
Among many user authentications over insecure networks, password authentication is simple, convenient and widely adopted one. In this paper, we propose a new threshold password authentication scheme for ad hoc networks.
Chen and Lee proposed a new hash-based password authentication using smart card and claimed that their scheme could resist seven attacks as listed in their paper. Our scheme can be efficiently implemented in mobile devices, and can achieve mutual authentication with registered users.
Later, we extend Song’s protocol so that the extended protocol can resist to off-line dictionary attack even if an adversary captures the smart card.
This document is a product of the Internet Engineering Task Force (IETF). It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG).