Secure and Trusted in-network Data Processing in Wireless Sensor Networks: a Survey

In-network data processing in wireless sensor networks (WSN) is a rapidly emerging research topic. The distributed processing could have several advantages for wireless sensor networks. First of all, in WSN computation is typically much less energy consuming than communication. Secondly, in-network processing enables WSN to provide more complex services to application layer, and not only data gathering functionality. However, in addition to computational overhead, in-network data processing introduces also many challenging security issues. Most of them are still open and require development of innovative security mechanisms. In this article we survey the current research related to security of in-network data processing in wireless sensor networks and highlight the directions, which are most promising in our opinion.