Certificate-Free Cross-Domain Fine-Grained Access Control Mechanism for Industrial Internet

Industrial Internet access control provides network security for industrial enterprises, and existing access control schemes have problems such as high computational costs, complicated certificate management, or complex implementation. Therefore, we propose a certificate-free cross-domain fine-grained access control mechanism based on the Ethereum consortium blockchain. Industrial Internet enterprises or entities from different regions register on the consortium blockchain to achieve cross-domain authentication. The conversion of the access tree into parallel judgment logic enables effective fine-grained access control. Industrial enterprises in different regions build an Ethereum consortium blockchain, providing the blockchain with mighty computing power using edge computing. To demonstrate the feasibility of our scheme, we successfully tested it on the Ethereum consortium blockchain built in the Raspberry Pi environment. In addition, the automated security protocol analysis tool Scyther proved the security of our scheme. It achieves the desired goal of authentication key negotiation, as demonstrated by the SVO logic. Our scheme is reliable and effective compared to other equivalent schemes in terms of performance and security attributes.