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Set-top box file access protection method and system

A file access and protection system technology, applied in electrical components, image communication, selective content distribution, etc., can solve security risks and other issues, and achieve the effect of avoiding security risks

Active Publication Date: 2021-02-12
SHENZHEN JIUZHOU ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, it is necessary to provide a set-top box file access protection method and system for the above-mentioned problems of various security risks in viewing and accessing files in external input devices through a set-top box

Method used

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  • Set-top box file access protection method and system

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Embodiment Construction

[0025] 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 creative efforts fall within the protection scope of the present invention.

[0026] figure 1 Shows a flow chart of a set-top box file access protection method in an embodiment, in figure 1 In an embodiment, the method includes the steps of:

[0027] S10: When the set-top box system accesses the file in the external input device, first obtain the relative path of the file in the external input device.

[0028] After the external input device is connected to the interface of the set-top box, the system of the set-top box will scan the exter...

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PUM

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Abstract

The invention relates to a set-top box file access protection method and system. When accessing a file in an external input device, the method obtains the relative path of the file and then determines the absolute path of the file, and judges whether the absolute path of the segment file is in the path whitelist. If it is not in the path whitelist, it is judged as an illegal path and access is denied. The present invention prevents illegal files in the external input device from accessing important files and systems of the set-top box, replaces file contents, attacks the file system of the set-top box, protects the file system of the set-top box from failure or collapse caused by illegal attacks, and avoids file and system corruption of the set-top box All pose security risks.

Description

technical field [0001] The invention relates to the field of digital television, in particular to a set-top box file access protection method and system. Background technique [0002] With the intelligentization of set-top boxes, people's demand for set-top boxes continues to increase, and the file access function of the file system is also used in current intelligent set-top boxes. An external input device (such as a mobile hard disk, a U disk, etc.) is connected to the set-top box through an interface, and the user can view and access files in the external input device through the set-top box. [0003] However, this file access method is full of various security risks. If there are illegal files in the external input device, the illegal files may view important files in the set-top box system (sensitive files or confidential files, such as files that store user passwords for various accounts) , Illegal files will check the content of important files, or even replace the c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/462H04N21/4627H04N21/443
CPCH04N21/443H04N21/462H04N21/4627
Inventor 陈永佳王小锋
Owner SHENZHEN JIUZHOU ELECTRIC