An efficient and privacy-preserving energy trading mechanism of peer-To-peer with MA-ABE and blockchain

For the peer-To-peer energy transaction trend, we propose an efficient and privacy-preserving access control scheme for transaction data. It is a distributed energy transaction matching method based on blockchain and ABE, which utilizes the access control features of ABE so that, unless the transaction is disputed, the seller and buyer can autonomously perform peer-To-peer matching through the access structure without relying on the help of other third-party nodes or centralized institutions. Meanwhile, with the user as the link, key generation is performed by multiple parties, including the user, attribute center and CA, and the multi-party key generation algorithm is embedded into the whole ABE algorithm process, which as a whole performs the attribution of security challenges. Partial access structure pre-encryption is supported in the process of transaction request encryption, and the encryption operation is divided into two phases of pre-encryption and encryption to deal with, which improves the overhead problem of transaction request sharing.