Prevention of DoS Attacks Based on Light Weight Dynamic Key Mechanism in Hierarchical Wireless Sensor Networks

2008 ◽  
Author(s):  
Xi Luo ◽  
Yi-Ying Zhang ◽  
Wen-Cheng Yang ◽  
Myong-Soon Park
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Wireless Sensor ◽  
Light Weight ◽  
Dos Attacks ◽  
Dynamic Key ◽  
Weight Dynamic ◽  
Hierarchical Wireless Sensor Networks

An Improved Cluster Key Management Algorithm for Wireless Sensor Networks

2014 ◽  
Vol 998-999 ◽  
pp. 1092-1095
Author(s):  
Qi Sheng Zhao ◽  
Xiao Ming Liu ◽  
Hui Sheng Zhu
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Key Management ◽  
Cluster Head ◽  
Wireless Sensor ◽  
Authentication Mechanism ◽  
Management Algorithm ◽  
Management Scheme ◽  
Dynamic Key Management ◽  
Dynamic Key

The information security of wireless sensor networks is one of hot issues on the current research; this paper combines threshold key scheme with the management of security key sharing and group agreement and proposes dynamic key management scheme through clustering level key matrix of authentication mechanism from the cluster to node. The network is divided into different clusters, and the cluster head conducts the key authentication exchange and updates the key management with threshold key schemes, with no need of third authentication center, reduces the computing and communication costs, and promotes communication.

scholarly journals Mobile Device Based Dynamic Key Management Protocols for Wireless Sensor Networks

2015 ◽  
Vol 2015 ◽  
pp. 1-10
Author(s):  
Chin-Ling Chen ◽  
Chih-Cheng Chen ◽  
De-Kui Li
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Key Management ◽  
Base Station ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Direct Access ◽  
Session Key ◽  
Dynamic Key Management ◽  
Dynamic Key

In recent years, wireless sensor network (WSN) applications have tended to transmit data hop by hop, from sensor nodes through cluster nodes to the base station. As a result, users must collect data from the base station. This study considers two different applications: hop by hop transmission of data from cluster nodes to the base station and the direct access to cluster nodes data by mobile users via mobile devices. Due to the hardware limitations of WSNs, some low-cost operations such as symmetric cryptographic algorithms and hash functions are used to implement a dynamic key management. The session key can be updated to prevent threats of attack from each communication. With these methods, the data gathered in wireless sensor networks can be more securely communicated. Moreover, the proposed scheme is analyzed and compared with related schemes. In addition, an NS2 simulation is developed in which the experimental results show that the designed communication protocol is workable.

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