Secure aggregation and attack detection for smart grid system

Smart grid is a very efficient and intelligent system for managing and monitoring the electricity usage and it can be applied in many useful areas. It supports energy producers and consumers efficiently by supporting the estimation and provision of the proper amount of electricity in proper time. However, when the information is altered or forged by the attackers, it could cause the system malfunction. In addition to that, some attacks could waste the system resources on purpose and could lead to disastrous results. In this work, we propose a secure data aggregation mechanism providing verification of the aggregated data and detection of the compromised node to prevent the DoS(Denial of Service) attack based on the homomorphic encryption.