An enhanced verifier-free password authentication scheme for resource-limited environments

2008 ◽  
Author(s):  
Wei-Chi Ku ◽  
Hao-Rung Chung ◽  
Maw-Jinn Tsaur ◽  
Szu-Yao Wang
Keyword(s):  
Authentication Scheme ◽  
Password Authentication ◽  
Resource Limited

A New Threshold Password Authentication Scheme

2010 ◽  
Vol 143-144 ◽  
pp. 915-919
Author(s):  
Yung Cheng Lee
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Devices ◽  
Ad Hoc ◽  
Mutual Authentication ◽  
Authentication Scheme ◽  
Network Infrastructure ◽  
Password Authentication ◽  
Unauthorized Access ◽  
Authentication Schemes ◽  
Hoc Networks

The well-known password authentication mechanisms are widely used in networks to protect resources from unauthorized access. The ad hoc networks, due to their dynamic and lack of network infrastructure features, require authentication schemes to ensure security. In this paper, we propose a new threshold password authentication scheme for ad hoc networks. Our scheme can be efficiently implemented in mobile devices, and can achieve mutual authentication with registered users.

Cryptanalysis of a Remote User Authentication Scheme

2013 ◽  
Vol 433-435 ◽  
pp. 1699-1701
Author(s):  
Bang Ju Wang ◽  
Huan Guo Zhang
Keyword(s):  
Smart Card ◽  
User Authentication ◽  
Authentication Scheme ◽  
Password Authentication ◽  
Remote User Authentication ◽  
User Authentication Scheme ◽  
Remote User

Among many user authentications over insecure networks, password authentication is simple, convenient and widely adopted one. 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. 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.

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