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Light file hiding method in NTFS file system

A file system and file hiding technology, applied in special data processing applications, instruments, electronic digital data processing, etc., can solve the problem of not being able to meet the visibility problem of illegal users at the same time

Inactive Publication Date: 2010-07-21
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a light-weight file hiding method under the NTFS file system, make it solve the existing technology can not meet the minimum disk data exchange overhead and hidden when executing the hidden file at the same time Data Visibility Issues to Unauthorized Users

Method used

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  • Light file hiding method in NTFS file system
  • Light file hiding method in NTFS file system
  • Light file hiding method in NTFS file system

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Embodiment Construction

[0104] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

[0105] In order to ensure the concealment of data and the minimum operation execution overhead, the present invention mainly achieves the purpose of hiding files by modifying less system data structures through minimum intrusion into the structure of the NTFS file system. In this way, the file is invisible in the operating system, and the purpose of protecting important data is achieved. Users only need to maintain a string of file path names to hide and restore files. At the same time, only through the recovery hiding algorithm mentioned in the present invention can...

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Abstract

The invention discloses a method for hiding light-weight files under an NTFS file system, which belongs to the technical field of computer network information. The method comprises a data hiding method and a hidden data recovering method, wherein, the data hiding method is characterized in that metadata of the file system referred according to the legal file path traverses index record entries ofspecial files, thereby achieving the purpose of hiding file data. The hidden data recovering method is characterized in that the hidden data is redisplayed and added into the file system by altering the index record entry of a temporary file according to the legal file path and the record number of the hidden files, thereby achieving the purpose of recovering the hidden data. By adopting the invention, the confidentiality of confidential data and the transparency for other users can be realized through data hiding. Meanwhile, data exchange and operation expenditure during the execution process of hidden data are minimized, and data integrity and reliability are protected to the greatest extent.

Description

technical field [0001] The invention relates to a file system processing method in the technical field of telecommunications, in particular to a lightweight file hiding method under the NTFS file system (New Technology File System). Background technique [0002] In today's information and networked society, various large-capacity storage devices have been widely used in various fields of society, such as government agencies, schools and academic institutions, commercial companies, individual users, etc. For different computer users, especially the first three types of computer users, the confidentiality of important data information stored in the storage medium is the most concerned issue. Once the storage devices containing important data are lost or stolen, how to prevent illegal users who try to read these devices from obtaining core confidential data to the greatest extent is one of the most important topics in modern storage technology. [0003] Different storage syste...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
Inventor 顾夏申张漳邹恒明
Owner SHANGHAI JIAOTONG UNIV
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