scholarly journals An Enhanced Three-Factor User Authentication Scheme Using Elliptic Curve Cryptosystem for Wireless Sensor Networks

Sensors ◽  
2017 ◽  
Vol 17 (12) ◽  
pp. 2946 ◽  
Author(s):  
Chenyu Wang ◽  
Guoai Xu ◽  
Jing Sun
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Elliptic Curve ◽  
User Authentication ◽  
Authentication Scheme ◽  
Wireless Sensor ◽  
Elliptic Curve Cryptosystem ◽  
User Authentication Scheme ◽  
Three Factor

scholarly journals Improvement of Wu et al.'s Three-Factor User Authentication Scheme for Wireless Sensor Networks

2018 ◽  
Author(s):  
Jihyeon Ryu ◽  
Hakjun Lee ◽  
Hyoungshick Kim ◽  
Dongho Won
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
User Authentication ◽  
Security Protocols ◽  
User Anonymity ◽  
Authentication Scheme ◽  
Wireless Sensor ◽  
User Authentication Scheme ◽  
Inherent Nature ◽  
Three Factor

Wireless sensor networks are widely used in many applications such as environmental monitoring, health care, smart grid and surveillance. Many security protocols have been proposed and intensively studied due to the inherent nature of wireless networks. In particular, Wu et al. proposed a promising authentication scheme which is sufficiently robust against various attacks. However, according to our analysis, Wu et al.'s scheme has two serious security weaknesses against malicious outsiders. First, their scheme can lead to user impersonation attacks. Second, user anonymity is not preserved in their scheme. In this paper, we present these vulnerabilities of Wu et al.'s scheme in detail. We also propose a new scheme by fixing such vulnerabilities and improving the performance of the protocol.

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