Wireless Sensor Network security: A critical literature review

As technology advances the use and popularity of Wireless Sensor Networks (WSN) have been growing. However, the network protocols associated with WSNs have primarily been designed for energy efficiency. In this paper we investigate the security mechanisms designed for each, the data-link, network and application layers. Through the review of recently publish material, this paper investigates the security vulnerabilities associated with data-aggregation, routing and user authentication in WSN environments. This paper finds that security is not properly implemented for any of these technologies, leaving WSNs open to a plethora of attacks.