Blockchain-Based Internet of Things Access Control Technology in Intelligent Manufacturing

Abstract

The integration of information systems and physical systems is the development trend of today’s manufacturing industry. Intelligent manufacturing is a new model of manufacturing, based on advanced manufacturing technology with human–machine–material collaboration. Internet of Things technology is the core technology of intelligent manufacturing, and access control technology is one of the main measures to ensure the security of the IoT. In view of the problem that the existing IoT access control model does not support distributed and fine-grained dynamic access control, this paper uses the characteristics of blockchain, such as decentralization and non-tampering, combined with the attribute-based access control (ABAC) method, to propose a distributed access control method, applicable to the IoT environment in the process of intelligent manufacturing. This paper describes a fine-grained access control policy by defining the access control attribute values in a formal language, which supports complex logic operations in the policy and enhances the expressiveness of the model. Distributed access control decision making, using smart contracts for blockchain, improves the decision-making efficiency of the access control model, increases the post-facto audit of the access control behavior, and improves the overall security of IoT data protection. The paper concludes with proof of security and a performance analysis, and the experimental results, such as storage and computing overheads, show that this method can provide fine-grained, dynamic, and distributed access control for devices in intelligent manufacturing, ensuring the security and reliability of access control for IoT devices.

Blockchain-Based Access Control Techniques for IoT Applications

“…In [46], Zhai et al used the attribute-based access control (ABAC) model with the smart contract to achieve a fully decentralized policy-based access control system applicable in the process of intelligent manufacturing. They used formal language to represent access control attributes.…”

“…This solution consists of transactions being used to invoke the chain code to record the access information and transfer the access control decision to the requester. In [46], Zhai et al deployed one smart contract on the blockchain to improve decision-making efficiency. In [56], Dukkipati and Zhang deployed one smart contract to verify the user's policy but they used an external database system to store security policies.…”

“…In [35,39,44,46,57,62], the authors proposed schemes that manage the authentication and the authorization phases at the same time. Both steps are deemed to be important to ensure system security.…”

Management Control and Integration Technology of Intelligent Production Line for Multi-Variety and Complex Aerospace Ring Forgings: A Review

“…Blockchain [92][93][94][95][96][97] Strong coordination in the face of many devices, which is conducive to eliminating single points of failure.…”

“…As node scale and network number increase, so does the risk of data privacy disclosure and maintenance costs. However, these problems can be effectively solved by the advantages of blockchain [92].…”