Analysis and improvements of a light-weight authentication scheme for wireless sensor networks

作者：Hu Liang; Chi Ling; Li Hong tu^*; Yuan Wei; Sun Yu; Chu Jian feng

来源：Journal of Convergence Information Technology, 2012, 7(13): 66-74.

DOI：10.4156/jcit.vol7.issue13.8

• Authentication scheme
• Colluding attack
• DoS attacks
• Encryption key
• Hash chains
• Light weight
• Security flaws

Now, security plays an important role in wireless sensor networks architecture. Dr. Oscar proposed a light-weight authentication scheme for wireless sensor networks. In this paper, we show that there are some security flaws in Oscar';s light-weight authentication scheme: an attacker and a sensor node can collude to make the attacker join in the wireless sensor network, the sensor node cannot resist the DOS attacks via using other illegitimate sensor nodes and encryption keys of the sensor nodes can be obtained by capturing the node. To fix these problems, we present some improvements. These cannot only solve the above security flaws in Oscar';s scheme, but also only make slight effect in the efficiency, security and other features of the Oscar';s scheme.

• 出版日期2012