Encryption method based on big data cloud platform system

Abstract

The invention provides an encryption and decryption method based on a big data security cloud platform system, and the method comprises the steps: accessing a secret key manager with a triple of a data owner identifier, an application identifier and a region code during encryption; receiving a triple key and a key group identifier for uniquely identifying the triple key; for documents with document identifiers, deriving an independent key of each document from a combination of the triple key and the document identifier; broadcasting the encrypted documents, the document identifiers and the keytriad identifier; encrypting the documents by using the independent key for each document. During decryption, an extraction engine extracts the document identifiers and the key triad identifier froman encryption header; the document identifiers and the key group identifier are provided to a KGF to generate an independent key for each document; the documents are decrypted using the independent key of each document to produce original documents. According to the encryption and decryption method for the security cloud platform system based on the big data, a data owner is allowed to establish avariable-granularity access strategy, identify risk behaviors and possible data leakage and accurately specify a data range needing to be protected, so that the security and efficiency of interactionwith cloud services are improved.

Description

technical field [0001] The invention relates to cloud security, in particular to an encryption method for a cloud platform system based on big data. Background technique [0002] With the increasing popularity of SaaS services, enterprises are relying on cloud platforms to create, edit and store data. Users in the education industry can more easily access educational services provided by the cloud from multiple devices, and data sharing becomes more convenient, but the data is easily out of the owner's control. When confidential information is leaked, businesses can only spend a lot of money and time to fix it. Moreover, the existing data leakage early warning technology lacks the context based on user activities, so the early warning accuracy is not high. Contents of the invention [0003] In order to solve the problems existing in the above-mentioned prior art, the present invention proposes a secure cloud platform system based on big data, the cloud platform system in...

AI Technical Summary

Problems solved by technology

Users in the education industry can more easily access educational services provided by the cloud from multiple devices, and data sharing becomes more convenient, but data is easily out of the owner's control

When confidential information is leaked, businesses can only spend a lot of money and time to fix it

Moreover, the existing data leakage early warning technology lacks the context based on user activities, so the early warning accuracy is not high

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