Cloud computing data security boundary protection method

Abstract

The invention discloses a cloud computing data security boundary protection method. The cloud computing data security boundary protection method comprises the steps that a cloud service request instruction sent by a user is received, and a data structure and safety parameters of a system are initialized and sent to the user; the user generates a secret key message; the user sends a data storage request, the header information of the metadata of the data storage request is generated, and a cloud data center initializes a plain data append tree; the user generates and sends an encrypted data block to the cloud data center; the cloud data center maintains the plain data append tree in real time according to the serial number and version number of the data block; the user executes security boundary verification and append operation of data on the plain data append tree by utilizing the secret key information of the user. The cloud computing data center of a cloud server terminal not only provides the encryption, fault tolerance and security boundary maintenance functions for the data of the user, but also meets the confidentiality, integrity and survivability of the data.

Description

technical field [0001] The invention belongs to the field of data security in computer networks, and in particular relates to a method for encrypting and authenticating data using a tree-structured directory in a cloud computing system and ensuring a remote data security boundary. Background technique [0002] In the construction of modern enterprise informationization, traditional computers and local area networks can no longer meet the demand for increasing information volume, and the rising cloud computing technology provides a good solution, which can provide end users with flexible , customizable and low-cost storage and computing services. Therefore, individual and business users are gradually migrating their data to cloud systems. At the same time, the confidentiality, integrity and reliability of cloud data have gradually become the focus of attention. Although cloud computing has its advantages compared with traditional computing models, a series of security issue...

AI Technical Summary

Problems solved by technology

These two methods can complete the verification of remote data very well, but they cannot be combined with data redundancy measures, resulting in the integrity of the data being easily destroyed, making the cloud data center unable to operate efficiently, and the initiation of data verification And the proof occupies a large system overhead of the client. In addition, POR only supports data encryption and verification, and is not customizable.

[0006] Therefore, the cloud computing system lacks a method to determine the security boundary combined with data redundancy, data encryption and remote data verification

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