RBBC: Reputation-based Blockchain for IoT Identity Resolution System
Jie Ji, Pengfei Yue, Leixiao Li, Haoyu Gao, Jinze Du, Hao Lin, Xiaodong Zhang, Qing Li · 2024
The identity resolution system serves as the entrance for the Internet of Things (IoT) data, ensuring unique identification of devices and effective data exchange. However, current identity resolution systems face issues such as information silos, uneven distribution of permissions, difficulties in manually managing identifiers for large-scale applications, and security weakness. Therefore, this paper proposes a compatible, fair, automated, and secure identity resolution system named RBBC, which serves as a universal portal for IoT device identification, data retrieval, and data exchanges. RBBC introduces a universal architecture to achieve compatibility in identity resolution, breaking down the information silos within the system; it decentralizes management authority to participants, realizing automated, fair, and equitable identifier management; it utilizes blockchain to ensure the immutability of identifiers and introduces a reputation model with an incentive mechanism into the blockchain to provide a quantifiable and sustainable trust measure for the system, thereby enhancing the security and reliability of identity resolution. Lastly, experimental validation confirms the effectiveness of the reputation model in detecting malicious nodes, and the efficiency of the automatic identifier allocation and registration mechanism, demonstrating the study's suitability for large-scale networks.