System and method used for retrieving and sharing large data center platform encryption files

Abstract

The invention relates to a system used for retrieving and sharing large data center platform encryption files. The system comprises a data acquisition module used for carrying out data acquisition of user files of a user initiating a transmission request to a large data center platform and guaranteeing confidentiality and integrity of the user data, a data pre-processing module used for carrying out primary processing on the user data in the user files acquired by the data acquisition module to construct corresponding indexes and encrypting the indexes, a data storage module used for encrypting and storing the user files after data processing carried out by the data pre-processing module and storing the indexes, a sharing and exchanging module used for realizing encryption searching for the encrypted files and realizing safe sharing and exchange among different user files, and a secret key management module used for managing secret keys for encrypting the user files and secret keys for encrypting the indexes. The invention further discloses a method used for retrieving and sharing the large data center platform encryption files.

Description

technical field [0001] The invention relates to the cross technical field of computer technology and information security, in particular to an encrypted file retrieval and sharing method and system for a big data center platform. Background technique [0002] Big data is an important strategic resource to promote economic and social development. In order to break down the barriers between various departments and improve the utilization rate of big data sharing, the government vigorously promotes the construction of e-government, smart city, and information benefiting the people. As the basis for the government to promote information construction such as smart cities and information benefiting the people, the big data center platform collects and stores data from various departments in a centralized manner on the big data platform, and provides unified data sharing and exchange services for departments at all levels. The big data center platform is the place where data resou...

AI Technical Summary

Problems solved by technology

[0008] (1) At present, the security protection of the cloud platform and the existing data center is mainly based on the traditional information security system, which weakens the status of data protection in security and does not fully protect the data;

[0009] (2) In the cloud platform, users encrypt and store their own data on the cloud, they can only retrieve their own data, and cannot query other users' data

In the b

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