A secure mechanism for QoS routing in wireless sensor networks

With the increased application of wireless sensor networks (WSNs) to military and civilian environments, securing the data in the network has become a critical issue. The severe resource constraints of sensor nodes and the broadcast nature of the wireless links as well as the challenging deployment environments of wireless sensor networks pose challenges for the quality and security of data transmission for these networks. In order to ensure data security and quality of service required by an application in an energy efficient way, we propose a mechanism for QoS routing with coding and selective encryption scheme for WSNs. Our approach provides reliable and secure data transmission and can adapt to the resource constraints of WSNs. The original message is split into packets that are coded and selectively encrypted before being transmitted along different disjoint paths.