A Right Transfer Access Control Model of Internet of Things Based on Smart Contract

【Author】 Wang, Jiuru; Gong, Ping; Wang, Haifeng; Zhang, Wenyin; Sun, Chongran; Zhao, Bin

【Source】SECURITY AND COMMUNICATION NETWORKS

【影响因子】1.968

【Abstract】Sensor nodes play a crucial role in the promotion of development of Internet of Things (IoT). Through this transaction, RO defines access control policies in script form based on ABAC's access control model to grant access right. The identity of all users in the model is identified by address. This paper builds a more flexible right transfer access control model by means of combining the Attribute-Based Access Control model (ABAC) and blockchain technology. Owing to the characteristics of ABAC's attributes and right association, the massive problems of some sensor nodes can be solved. At the same time, for the sake of addressing the dynamic problems such as node access and right transfer, right transfer contract (TS) and access control contract (CS) are employed on the chain to ensure efficient and safe transmission of rights. To solve on-chain storage problems and ensure transparency of the operation, the idea of Rollup in Ethereum expansion is used to upload the final state of protocol policy and right exchange to the chain. Any user can know the policy and current right transfer status at any time. Finally, comparative and security analysis show that the model presented here can solve IoT devices' massive and dynamic problems more effectively and it is more secure than the traditional models.

【Keywords】

【发表时间】2022 MAY 2

【收录时间】2022-05-29

【文献类型】实证性文章

【主题类别】

区块链技术-协同技术-物联网