关键词: 边缘服务, 区块链, 密钥链, 数据安全, 动态审计

Abstract: Edge service nodes have diversified service capabilities, and play an important role in improving the capability of data acquisition, communication, information awareness, command and control. To solve the problems of lack of security information sharing means and vulnerability of edge service nodes in a complex environment, an endogenous security blockchain network architecture composed of main chain, key chain and data chain is designed based on the DAG data structure in this paper, multipolicy security control techniques such as hardware private key storage, dynamic audit on the chain, data security transmission and network dynamic adjustment are adopted to establish a complete endogenous security mechanism for edge service nodes. Experiments show that the security mechanism in this paper can ensure the security of personnel, device, data storage, data access, data transmission, and data services, and form the basis of security for the industrial Internet.Key words edge service; blockchain; key chain; data security; dynamic audit

Key words: edge service, blockchain, key chain, data security, dynamic audit