%0 Journal Article %A CHEN Yuling %A DOU Hui %A LONG Yangyang %A XIN Yang %T Secure energy transaction scheme based on alliance blockchain %D 2020 %R 10.11772/j.issn.1001-9081.2019101784 %J Journal of Computer Applications %P 1668-1673 %V 40 %N 6 %X Blockchain technology is widely used in vehicular network, energy internet, smart grid, etc., but attackers can combine social engineering and data mining algorithms to obtain users’ privacy data recorded in the blockchain; especially in microgrid, data generated by games between neighboring energy nodes are more likely to leak user privacy. In order to solve such a problem, based on the alliance blockchain, a secure energy transaction model with a one-to-many energy node account matching mechanism was proposed. The proposed model mainly uses the generation of new accounts to prevent attackers from using data mining algorithms to obtain private data such as energy node accounts, geographical locations, and energy usage from transaction records. The simulation experiment combines the characteristics of the alliance chain, the number of new accounts generated by energy nodes, and the change of transaction verification time to give the analysis results of privacy protection performance, transaction efficiency, and security efficiency. The experimental results show that, the proposed model requires less time during the stage of transaction initiation and verification, has higher security, and the model can hide the transaction trend between adjacent users. The proposed scheme can be well applied to the energy internet transaction scenario. %U http://www.joca.cn/EN/10.11772/j.issn.1001-9081.2019101784