Secure Data Accumulation and Certification Procedure for Sensor Networks

Abstract

The Wireless Sensor Network appears as an emerging technology which consists of thousands of small and low cost sensors. These sensors have limited power, computation, storage and communication capabilities. The data aggregation framework process is required which combines the data coming from various sensors, remove the redundancies in those data and then enroot them. In this paper, we have proposed a secure data aggregation protocol for wireless sensor networks (WSNs) that is robust to deceitful nodes. The goal of this protocol is to guarantee the essential security needs (like authentication, data confidentiality & data integrity) as well as to achieve the low communication overhead and be fitted with various aggregation functions (like sum, average, max, min etc.).To achieve these security needs, it uses symmetric encryption and message authentication code. Encryption ensures data confidentiality while message authentication code ensures authentication and data integrity. An anomaly detection algorithm is used to detect the anomaly or outliers and thus prevent the deceitful corrupted data from being contributed to the final aggregated results.