We propose a blockchain-based, distributed protocol for enabling the deployment of Internet-of-Things (IoT) networks on-demand on top of IoT devices. Specifically, the proposed protocol leverages blockchain technology to: 1) enable distributed and secure authentication, registration, and management of participatory IoT devices; 2) provide fast discovery of IoT resources and scalable and secure instantiation of IoT networks-on-demand; and 3) manage payment operations and ensure reliable fund transfers among the network entities. The proposed protocol relies on a peer-to-peer network communication infrastructure to allow communications among the IoT devices in a distributed manner and uses a self-recovery/self-healing mechanism to ensure robustness against device failure and maliciousness. The protocol also introduces and uses a reputation system to monitor registered devices to keep track of their service delivery quality so that their service delivery reputations could be leveraged for future device selection and mapping. We implemented and evaluated the proposed protocol intensively using simulations and showed that it scales well with network parameters, is resilient to faulty devices, and is robust to 51% attack.

中文翻译：

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IoTShare：用于智能城市态势感知应用的基于区块链的物联网资源共享按需协议


我们提出了一种基于区块链的分布式协议，用于在物联网设备上按需部署物联网 (IoT) 网络。具体来说，所提出的协议利用区块链技术来：1）实现参与式物联网设备的分布式安全身份验证、注册和管理； 2) 提供物联网资源的快速发现以及物联网网络按需的可扩展且安全的实例化； 3) 管理支付操作并确保网络实体之间可靠的资金转移。所提出的协议依赖于点对点网络通信基础设施，允许物联网设备之间以分布式方式进行通信，并使用自我恢复/自我修复机制来确保针对设备故障和恶意行为的鲁棒性。该协议还引入并使用信誉系统来监控注册设备，以跟踪其服务交付质量，以便可以利用其服务交付信誉来进行未来的设备选择和映射。我们使用模拟对所提出的协议进行了集中实施和评估，结果表明它可以很好地适应网络参数，对故障设备具有弹性，并且对 51% 攻击具有鲁棒性。