Blockchain-enabled device command operation security for Industrial Internet of Things

For the convenience and automation of industrial manufacturing and production management, users usually issues commands to control and manage all devices based on the Industrial Internet of Thing(IIoT) cloud platform. This distributed management mode has two disadvantages: (1) The gateway control is adopted by the IIoT cloud platform for the device command operation. Once having the command rights on the IIoT cloud platform, users can operate the devices without restrictions; (2) The IIoT cloud platform records the log of the user's device command operation behavior through a database or file, which is vulnerable to tampering. Therefore, a blockchain-enabled device command operation security scheme for the IIoT cloud platform is proposed, which adds a flexible control factor - command asset quota - to control the number of command operations, and added the allocation and recycling of the command asset quotas based on blockchain transactions, as well as the storage and recording of the command operation behavior logs. In the paper, the classification, value calculation, asset model and quota allocation and recycling mechanism of device commands are descripted in detail, and the reference implementation project is carried out. Finally, this scheme prototype is implemented based on the IIoT platform Jetlinks, OceanConnect and the alliance chain Fisco Bcos. Experiments show that this scheme not only solves the above two problems, but also is feasible, security, efficient and resilient.