基于区块链的智慧城市边缘设备可信管理方法研究

由于物联网设备的资源受限,当前智慧城市相关应用系统,在抵御以物联网设备为目标的恶意攻击时存在局限性,难以提供安全可靠的服务.本文设计了基于区块链的智慧城市边缘设备管理架构,将区块链技术引入智慧城市建设研究中,利用区块链分布式架构和去中心化的思想,实现感知数据的可信收集和存储,并基于该架构提出了一种新的基于信誉的PoW共...

Blockchain-based Approach for Trustworthy Management of Edge Device in Smart City

Due to the constrained resources of edge device, currently smart city applications with centralized model are vulnerable to malicious attacks from internal, which can hardly provide high-confidence services. This paper designs a blockchain-based smart city framework, which introduces the distributed architecture and decentralization of blockchain into smart city to realize the trustworthy collection and storage of sensor data. Based on the framework, a novel credit-based PoW consensus algorithm is also proposed to provide the trustworthy mechanism for edge device. By increasing the cost of malicious attack, the algorithm can prevent malicious attacks launched by edge devices and implement trustworthy management of the behavior of edge device. The case study of the proposed approaches in smart city scenario shows its feasibility and effectiveness, which can effectively prevent malicious attacks from edge device and enhance the information security of the system.