A secure aggregation routing protocol with authentication and energy conservation

Wireless sensor networks (WSNs) have emerged in various applications. However, the uneven resource allocation of sensor devices seriously affect the lifetime of wireless sensor networks. Moreover, the privacy leakage problem in wireless sensor networks is becoming increasingly serious. To solve the imbalance of energy consumption and privacy disclosure of nodes, we propose a secure aggregation routing protocol with authentication and energy conservation. Firstly, a new cluster head and cluster gateway selection method is proposed to balance the energy consumption of each node. By designing cost function and node density function, a cluster head and cluster gateway selection indicator is defined, and furthermore, a cluster head and cluster gateway node selection method is proposed. Secondly, a key negotiation scheme with authentication function is proposed. By introducing a trusted authorized node, a node authorization method is proposed to distribute the authorized keys. Finally, by introducing the proposed cluster head selection method and key negotiation scheme into WSN, a secure aggregation routing protocol with authentication and energy conservation is proposed. Performance analysis shows the proposed protocol obtains more executable rounds with less total energy consumption and extend the lifetime of wireless sensor networks.