Data security sharing method under multi-edge node cooperation mode in industrial cloud environment

Abstract

The invention relates to a data security sharing method in a multi-edge node cooperation mode in an industrial cloud environment, belonging to the industrial field. The method includes: firstly, the edge nodes that need collaborative computing apply to the authority center for shared keys for collaborative computing; secondly, the authority center generates shared keys through the key generation mechanism and sends them to the edges that apply for collaborative computing Nodes; again, edge nodes generate interference factor sets in combination with industrial characteristics, and add different interference factors for different types of data; then, each edge node participating in the collaboration introduces a shared key and interference factors based on an integer fully homomorphic encryption algorithm, and the edge nodes The improved fully homomorphic encryption of the data is uploaded to the industrial cloud platform; finally, the industrial cloud platform performs homomorphic analysis and calculation on the data uploaded by each edge node, and sends it back to each edge node. The invention guarantees the data security and also takes into account the data interoperability among multiple edge nodes.

Description

technical field [0001] The invention belongs to the industrial field, and relates to a data security sharing mechanism for collaborative computing on a cloud platform among a plurality of edge nodes in an industrial cloud environment. Background technique [0002] Edge computing is an open platform that integrates network, computing, storage, and application core capabilities on the edge of the network close to the source of objects or data, and provides edge intelligent services nearby to meet the needs of industry digitization in agile connection, real-time business, data optimization, application intelligence, Key requirements in terms of security and privacy protection. [0003] Edge nodes can focus on the analysis of real-time and short-period data, which can better support the real-time intelligent processing and execution of local business; they can also perform preliminary screening and processing of data, and transfer valuable data to the industrial cloud platform o...

AI Technical Summary

Problems solved by technology

However, if the above-mentioned edge nodes adopt the above-mentioned homomorphic encryption algorithm and use their own keys to encrypt data, although the confidentiality of data transmission between the edge nodes and the industrial cloud is guaranteed, since the keys used by each edge node are different, It will cause the data sent by each edge node to the industrial cloud platform to be unable to perform homomorphic calculation on the industrial cloud platform, that is, in the case of multi-edge node collaboration, the cloud platform cannot fuse and process these ciphertexts, and feed back to the edge nodes

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