File version control system and file version control method

Abstract

The invention discloses a file version control system which comprises a local library and a control module. The local library comprises a working area, a meta database and a version library; the working area is used for saving files managed by a system, the meta database is used for saving a file tree, a version tree and a version list, and the version library is used for saving version files in the working area. The control module comprises an abstract file system interface module, a file operation module, a meta data access module, a recovery manager module and a working area monitor module. The files are backed up to a server after being encrypted so that privacy disclosure of the server side can be avoided. Version information of the files is maintained automatically so as to bring convenience for users to recover the files to previous version after the files are in error operation. Besides, since the file tree, the version tree and the version list are saved by means of tables and the tables are then converted into key values to save to disk files, modification and delete of cells of the tables are achieved by means of new value writing, random access to the disk is avoided, Input / output (I / O) of the disk is reduced, and network overhead is also decreased.

Description

technical field [0001] The invention belongs to the technical field of computer network applications, and in particular relates to a method for version control and encrypted remote backup of files. Background technique [0002] With the development of network technology, many network companies distribute part of the hard disk or hard disk array capacity of their servers to registered users, that is, the advent of network hard disks (network disks). Reliable and other advantages, so it has been favored by more and more users. [0003] However, the clients provided by network disk providers access files in plain text, and file security is increasingly becoming the primary concern of users. On the one hand, most network disk providers do not provide version control functions. After the operation, the file cannot be restored to the state before the wrong operation; on the other hand, some network disk providers provide file historical version recovery services, and users cannot...

AI Technical Summary

Problems solved by technology

[0003] However, the clients provided by network disk providers access files in plain text, and file security is increasingly becoming the primary concern of users. On the one hand, most network disk providers do not provide version control functions. After the operation, the file cannot be restored to the state before the misoperation; on the other hand, some network disk providers provide file history version recovery services, due to weak functions, users cannot customize the file version

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