EPDB: An Efficient and Privacy-Preserving Electric Charging Scheme in Internet of Robotic Things

【Author】 Zhai, Di; Liu, Jiqiang; Zhang, Tao; Wang, Jian; Du, Hongyang; Liu, Tianhao; Wang, Tianxi; Zhang, Chuan; Kang, Jiawen; Niyato, Dusit

【Source】IEEE INTERNET OF THINGS JOURNAL

【影响因子】10.238

【Abstract】In recent years, electric vehicles (EVs) have emerged as a promising mode of transportation. With the development of Internet of Robotic Things (IoRT) technology, charging stations are employing interconnected robots to charge EVs, automating the collection and transmission of user charging information. However, charging processes pose risks of privacy leakage to users, as malicious attackers could potentially exploit the collected charging information to infer the real identities and behavioral habits of EV users. Existing studies leverage the decentralization and anonymity of blockchain to achieve privacy-preserving charging management. Due to the increasing number of users and limited battery capacity, there is a large volume of charging requests demand to be processed. However, the consensus mechanism of blockchain limits the system throughput. Therefore, it is a challenge to preserve the privacy of EV users and simultaneously improve the system processing efficiency. To address these concerns, we propose an efficient and privacy-preserving EV charging scheme (EPDB), which leverages decentralized identifier (DID) and Pedersen commitment scheme to achieve reliable charging reservations while hiding EV User's charging information. Additionally, we propose an efficient blockchain consensus protocol, which serves as the underlying storage for DID, thus significantly improving the system throughput. Furthermore, our proposed consensus protocol maintains high throughput even when encountering Byzantine attacks. Our theoretical analysis indicates that EPDB scheme effectively mitigate Byzantine attacks, preserve privacy and prevents deception of charging services, and our experimental results demonstrate the high efficiency of EPDB scheme.

【Keywords】Electric vehicles; Consensus protocol; Peer-to-peer computing; Throughput; Privacy; Robots; Internet of Things; Blockchain; consensus protocol; decentralized identifier (DID); Internet of Robotic Things (IoRT); privacy preserving

【发表时间】2024 OCT 15

【收录时间】2024-10-20

【文献类型】实验仿真

【主题类别】

区块链应用-实体经济-汽车领域