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A file system encryption method and device

A file system and encryption method technology, applied in computer security devices, instruments, computing and other directions, can solve problems such as data security cannot be guaranteed

Active Publication Date: 2020-07-03
HANGZHOU HIKVISION DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since the metadata guide area, metadata index area, and data area of ​​the current file system store all plaintext data, an attacker can crack the storage structure of the file system by analyzing the plaintext, and obtain the file After the storage structure of the system, the storage location information of the data stored in the file system can be obtained, and then the data stored in the file system can be obtained, but the security of the stored data cannot be guaranteed

Method used

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  • A file system encryption method and device
  • A file system encryption method and device
  • A file system encryption method and device

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Embodiment Construction

[0077] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0078] In order to ensure the security of stored data, an embodiment of the present invention provides a file system encryption method and device.

[0079] A method for encrypting a file system provided by an embodiment of the present invention will first be described below.

[0080] It should be noted that, the execution subject that executes the file system encryption method provided by the embodiment of the present invention is a terminal. Terminals includ...

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Abstract

Disclosed are a method and device for encrypting a file system. The method comprises: when carrying out a formatting operation on a target disk, generating a first random number corresponding to a metadata index region created and generated by means of the formatting operation, wherein the formatting operation is used for installing a target file system on the target disk (S101); based on the first random number, encrypting data stored in the metadata index region to obtain first encrypted data (S102); and storing the first encrypted data in the metadata index region (S103). By applying the method and the device, the security of data stored in a file system is improved.

Description

technical field [0001] The invention relates to the technical field of file systems, in particular to a file system encryption method and device. Background technique [0002] At present, there are various file systems in the prior art, for example, file systems such as FAT16 (File Allocation Table, file allocation table) and NTFS (New Technology File System, new technology file system). These file systems can manage the disk and the data written to the disk. Wherein, the data may be any type of data such as text or video. [0003] Generally, when a file system needs to be installed on a disk, a file system including areas such as a metadata boot area, a metadata index area, and a data area can be created on the disk through a formatting operation. Among them, the metadata guide area is used to store the information of the file system itself, that is, the file system information, such as the version information of the file system, the location information of the metadata i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/62
CPCG06F21/6218G06F2221/2107G06F21/62
Inventor 浦世亮叶敏林鹏汪渭春林起芊
Owner HANGZHOU HIKVISION DIGITAL TECH