Privacy-preserving and secure communication scheme for power injection in smart grid

In this paper, we propose a secure and privacy-preserving communication scheme for power injection for the smart grid storage units. The idea is based on collecting masked bids from storage units at an aggregator and send aggregated bids to the utility rather than the individual ones. The utility company can ensure the integrity and authenticity of the aggregated bid without accessing the individual bids. In this way, no party will have access to the storage units´ data and make use of it to achieve unfair financial gains. Our evaluations have demonstrated that the proposed scheme is secure and can achieve the privacy requirements. Moreover, the scheme requires acceptable communication and computation overhead.