Synchronous disc data security protection writing and reading method

Abstract

The invention discloses a synchronous disc data security protection writing method, which comprises the following steps that the security demands and the characteristics of data to be uploaded are quantized according to file information selected by users and the input and the setting of the users; data writing security strategies are determined according to the quantization information; data preprocessing is carried out, corresponding security mechanisms are called according to the security strategies, and the positioning, the coding, the completeness processing, the encryption and the compression operation are carried out; and data distribution is carried out, the distribution strategies of the to-be-preprocessed data are determined according to the conditions of each synchronous disc, and the to-be-preprocessed data is written into each synchronous disc content, and in addition, corresponding metadata files are generated. The invention also discloses a synchronous disc data security protection reading method. The writing method and the reading method can solve the problems of privacy protection and availability assurance of the data of users, and meanwhile, the limitation of the single synchronous disc in aspects of the file type, the single file size, the file quantity, the space volume and the like can also be broken through.

Description

technical field [0001] The invention belongs to the field of cloud storage data security, in particular to a method for writing and reading synchronous disk data. Background technique [0002] Synchronization disk is a cloud storage service, which realizes the automatic synchronization of files from local directories to cloud storage, and is an ideal choice for users to perform data network backup. At present, well-known domestic IT manufacturers such as Baidu, 360 Security Satellite TV, Tencent, Kingsoft, and Huawei have launched corresponding synchronization disk services. With the popularization of sync disks, users pay more and more attention to their security, which mainly reflects the privacy protection and usability of user data. Relevant surveys show that currently about 70% of users are reluctant to use cloud storage services to store key data for this reason. The Berkeley white paper summarizes the top ten problems and opportunities of cloud computing, among whic...

AI Technical Summary

Problems solved by technology

Because different data have different security requirements, for example, some focus on privacy protection, while others focus on usability; and data characteristics, such as read and write characteristics, access characteristics, and storage characteristics are also different, a single method cannot satisfy all Requirements, at present, there is no unified method that can comprehensively consider the security requirements of data and the characteristics of data itself, and finally make user data more secure

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