Secure and Trusted Authentication Models under Edge Computing and Block Multi-Chaining

Abstract:

Issues such as data security and privacy protection caused by the edge computing model are fundamental issues that constrain the development of edge computing, while blockchain is limited in solving security issues in edge computing due to its own scalability bottleneck. In order to solve the trust management and the scalability of blockchain on the edge side, and to promote the collaborative development of edge computing and blockchain, a distributed secure and trustworthy authentication model is proposed based on edge computing and master-slave multi-chain. First, a master-slave multi-chain structure is designed based on the traditional single chain, and a three-layer architecture is deployed by integrating edge computing; for the security problem on the edge side, a signature authentication scheme is designed based on elliptic curve cryptographic algorithm (ECC) integrated with blockchain encryption technology. Secondly, the role-based Access control model (RBAC) combined with smart contract divides user privileges at a fine-grained level, constructs the inter-domain access control model (ID-RBAC), and gives the design of intra-domain and inter-domain detailed access authentication process. The experimental results show that the model is secure and trustworthy, and compared with the single-chain architecture of traditional deployment method, the storage overhead of this scheme is reduced by 50% on average, and the latency is also significantly reduced. Compared with the existing scheme, the scheme has greater superiority in throughput, and the ratio of sending rate to throughput reaches 1:1, which can meet the demand of large-scale Internet of Things (IoT) practical applications with high scalability and high security.

This paper focuses on edge security. Based on ECDSA, edge computing is introduced in master-slave chain scenarios to achieve secure and trusted authentication, giving the cross-domain access model and authentication process.

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