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User mode encrypt file system

A technology for encrypting file systems and encrypting files, which is applied in the field of information security and can solve problems such as not working properly, not starting, etc.

Inactive Publication Date: 2014-05-28
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aiming at the file encryption and decryption problems of this deployed file cloud storage system, a file system filter-driven solution is proposed in the invention patent application "A Cloud Storage File Encryption System" (patent application number: 201310466023.7). However, there is a problem in the technical solution proposed in the patent application 201310466023.7: when the file system filter driver for file encryption processing is not started or cannot work normally due to the negligence of the user or the failure of the computer system, it may cause unencrypted Files are uploaded or synced to the cloud system

Method used

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  • User mode encrypt file system

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] The specific implementation scheme of the encrypted file system in user mode is related to the operating system run by the encrypted file system. The following uses the Windows operating system as an example to illustrate.

[0026] The encrypted file container can be implemented as a file using Windows' compound file (Compound File) technology, and the Storage storage structure of the compound file corresponds to the file directory, and the Stream storage structure is used to store files.

[0027] The virtual file system driver can be developed and implemented based on the Windows file system filter driver (Filter Driver) or micro-filter driver (mini-Filter Driver) technology (rather than based on the file system driver technology). The virtual file system driver (that is, filter driver or microfilter driver) intercepts all operation requests (I...

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Abstract

The invention discloses a user mode encrypt file system capable of automatically achieving encryption of a cloud storage file. The system comprises an encrypt file container, a virtual file system drive and file operation processing program, wherein the encrypt file container is used for storing the encrypt file and comprises organization structures of a file and a file catalogue in the internal part; the virtual file system drive and file operation processing program map the file and the file catalogue in the encrypt file container to a virtual file tray or a virtual file catalogue of a computer file system, transform an operation of application program or system program aiming at the file and the file catalogue in the virtual file tray or the virtual file catalogue into an operation aiming at the file and the file catalogue in the encrypt file container, and automatically decrypt or encrypt file data read or written by accredited program in the treatment process. The file data read from the virtual file tray or the virtual file catalogue as a cloud storage client of unaccredited program are encrypted.

Description

technical field [0001] The invention belongs to the technical field of information security, and relates to a user-mode encrypted file system, in particular to an encrypted file system capable of automatically implementing cloud storage file encryption. Background technique [0002] A cloud storage system that provides file storage functions (file cloud storage system) is a system that provides data storage services through the network. A file cloud storage system usually consists of two parts: a cloud storage client and a cloud storage server (cloud system). Users upload or synchronize files to the cloud system through the cloud storage client, or download or synchronize files stored in the cloud system to the cloud system. local to the user's computer. The file cloud storage system is popular among users due to its ease of use; however, the data security of the cloud storage system is always the most concerned and worrying issue for cloud storage users, and it is a proble...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L29/06H04L9/32
Inventor 龙毅宏唐志红
Owner WUHAN UNIV OF TECH
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