Security distributed aggregation and access system and method based on fog alliance chain

Abstract

The invention discloses a security distributed aggregation and access system and method based on a fog alliance chain, and aims to solve the problem that most of current data aggregation schemes are designed based on a centralized mode, face single-point faults and tampering threats, and have security and performance improvement space. In order to solve the challenge, a distributed aggregation framework is designed in combination with fog computing and an alliance chain, single-point faults and tampering crisis are solved, and powerful support is provided for safe collection, communication andstorage of data. Meanwhile, a Paillier homomorphic algorithm of a threshold version is fused, a safe access control mechanism with a fault-tolerant function is designed, and confidentiality and privacy of data on a chain are guaranteed. Meanwhile, an efficient anonymous authentication method is provided, and identity privacy and data integrity can be guaranteed. Finally, the comparative analysisresult of the method and the existing method shows that the method can resist malicious attacks and ensure the system security, and compared with other existing methods, the method has lower calculation and communication costs.

Description

Technical field [0001] The invention belongs to the technical field of wireless networks and information security, and specifically relates to a safe distributed aggregation and access system and method based on a fog alliance chain. Background technique [0002] The traditional Industrial Internet of Thing (IIoT) relies on cloud computing to store collected data in a centralized cloud server. Users have only limited control over the use and processing of their data and have to trust the cloud server to be able to Protect their private and confidential data. Undisputed, cloud computing has brought great benefits to IIoT, but at the same time, centralized IIoT systems face many challenges in terms of security and privacy. First, if the cloud server fails, the entire IIoT system will face a crisis of paralysis, that is, the "single point of failure" problem. Second, most of the data transmitted to cloud storage is usually unencrypted, and the privacy information carried in the da...

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: In view of the above technical problems, considering that the blockchain has the characteristics of decentralization and non-tampering, it can solve security problems such as single point of failure and illegal tampering in the centralized model

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