Patent
Filter drive encryption implementing method for file system
Ruchuan Wang,Li Shen,Li Peng,Haiping Huang,Lijuan Sun,Wei Zhang,Fu Xiao +6 more
- 11 Jul 2012
11
TL;DR: In this article, a filter drive encryption implementing method for a file system is described, which comprises the following steps of: 1, after a drive program is started and when an opened file is returned to an application program, acquiring the name and the size of the file; 2, judging whether the progress of opening the file is a confidential progress; 3, if the file's size is greater than that of an encryption identification structure, reading information of the same size from the header of a file and comparing the information with the information of a different structure; 4, when the file
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Abstract: The invention discloses a filter drive encryption implementing method for a file system. The encryption method comprises the following steps of: 1, after a drive program is started and when an opened file is returned to an application program, acquiring the name and the size of the file; 2, judging whether the progress of opening the file is a confidential progress; 3, if the size of the file is greater than that of an encryption identification structure, reading information of the same size from the header of the file and comparing the information with the information of the encryption identification structure; and 4, when the file is read and if the file is an encrypted file, performing decryption; and when the file is returned to the application program, judging whether the original file is an encrypted file in write operation, if so, encrypting the file and storing the file into a disc file, otherwise, directly storing the file into the disc file without encryption. Compared with the conventional file filter drive, the method has the advantage that: the kernel developer of Microsoft develops a new drive which is called as a filter manager.
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Citations
Patent
Host file security monitoring method
Wang Yulin,Chen Yixin,Shi Xianke +2 more
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TL;DR: In this article, a file transparent encryption method based on a driver layer and completely transparent to users is proposed. But the method is not suitable for the security monitoring and protecting of host file systems.
11
Patent
Method for preventing underlying driver from intercepting messages
Lu Zhou,Yu Huazhang +1 more
- 18 Feb 2015
TL;DR: In this paper, the authors proposed a method for preventing an underlying driver from intercepting messages by modifying a stack cell corresponding to the device object of the keypad filter driver in hardware messages, setting a completion function, and sending the hardware messages to the system keypad driver.
5
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Li Wenjing
- 22 Jun 2016
TL;DR: In this article, the authors present a file virtualization implementation method and apparatus, which are capable of solving the problem that the existing file virtualisation is not stable enough and is not easy to be extended and efficiently implementing file Virtualization.
4
Patent
Transparent Windows kernel file filtering method based on hierarchical file system
Guan Haibing,Gong Lu,Qi Zhengwei +2 more
- 29 Oct 2014
TL;DR: In this paper, a transparent Windows kernel file filtering method based on a hierarchical file system is proposed, where the hierarchical file systems are created in filtration drive of a Windows file system for achieving transparent file filtrations, and transparent file encryption is further achieved, so that private data in cloud environment are protected.
2
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Data leaking prevention control method and system for file outgoing
Liu Lijun,Cai Jian,Wang Jiren +2 more
- 20 Jul 2018
TL;DR: In this article, a data leaking prevention control method and system for file outgoing is proposed, which includes the steps of acquiring an application program request, determining a target file according to the application program requests, encrypting or decrypting the target file, and writing the encrypted file into a disk or loading the decrypted target file.
1
References
Patent
File protection technique based on Windows system files filtering drive
Xinhai Jing,Jianping Cheng,Jiangning Liu,Jing Liu,Wenqiang Niu,Qing Zhang,Chun Liu,Lei Shi +7 more
- 03 Sep 2008
TL;DR: InforGuard as mentioned in this paper is a file protection technology based on Window system file filter drive, which is realized by the following steps: A: loading drive, by calling Service provided by Window system to manage API in order to load a drive file; B: building up and maintaining a protected file assembling to obtain protected file assemble information after loading drive; D: processing a file visit request to realize file protection according to claim.
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