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A method and system for preventing historical video playback data from being tampered with

A technology for historical video and playback data, applied in image communication, selective content distribution, electrical components, etc., can solve the problems of video data tampering, network video recorder system vulnerabilities, weak passwords, video surveillance system management terminal security issues, etc. The effect of preventing tampering, accurate verification results, and improving security and reliability

Active Publication Date: 2020-04-28
WUHAN SOUTH SAGITTARIUS INTEGRATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the following security risks may exist during video playback: illegal replacement and access of front-end equipment; system loopholes and weak passwords of network video recorders; security issues of video surveillance system management terminals; security issues of personnel using video surveillance networks
In view of the above-mentioned known hidden dangers, causing users to remotely view historical videos, there is a risk that the received video data may be maliciously tampered with due to network attacks, resulting in users failing to view the real video images without knowing it

Method used

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  • A method and system for preventing historical video playback data from being tampered with
  • A method and system for preventing historical video playback data from being tampered with
  • A method and system for preventing historical video playback data from being tampered with

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Embodiment 1

[0033] This embodiment discloses a method for preventing historical video playback data from being tampered with, including:

[0034] S100 The receiving end sends a historical video review request to the sending end; specifically, after the receiving end queries the historical video list, it sends the file name of the historical video file to be viewed back to the sending end, wherein the file names of the historical video files have a unified naming rule. For example, if the historical file name recorded by the car camera is composed of vehicle identification number, camera serial number and recording time, the vehicle identification number (Vehicle Identification Number, or vehicle frame number), referred to as VIN, is a group consisting of 17 alphanumerics. , a set of unique numbers used on a car, which can identify the car's manufacturer, engine, chassis serial number and other performance information. For example, when the video file name is LDPGBBAD9JC000966_03_20191115-...

Embodiment 2

[0047] This embodiment discloses a system for preventing historical video playback data from being tampered with, including: a first frame type judging unit 1, an encryption marking unit 2, a second frame type judging unit 3, and a judging unit 4;

[0048] The first frame type judging unit 1 is used to judge the current frame type when the sending end receives the historical video look-back request and reads the historical video data by frame, and the current frame type is a key frame I frame and a non-key frame P frame and B frame; Specifically, after the receiving end queries the historical video list, it sends back the historical video file name to the sending end. The video file name naming rule has been described in Embodiment 1, and will not be repeated here.

[0049] In some embodiments, when the historical video is an AVC format video, the current frame type is determined according to the nal type value, and this embodiment does not limit the method for determining the ...

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Abstract

The invention discloses a method and system for preventing historical video playback data from being tampered. A receiving end sends a historical video playback request to a sending end; a sending endreads historical video data according to frames, judges the type of the current frame, adds mark information according to the type of the current frame, and sends the mark information to the receiving end according to a pre-appointed communication encryption algorithm; and the receiving end decrypts the video according to a preset communication encryption algorithm key, judges the type of the decrypted frame, acquires mark information according to different frame types, and judges whether the video is tampered or not according to the acquired mark information. According to the method, file information marks are added to a key frame I, a non-key frame P and a key frame B, mark information is encrypted, and the key frame I, the non-key frame P and the key frame B are checked at a receivingend, so that the playback process is subjected to security check from beginning to end. The method is simple in logic and easy to implement, adopts different principles of double-layer verification, and improves the safety and reliability of historical video playback.

Description

technical field [0001] The invention belongs to the fields of video surveillance communication technology and digital security, in particular to a method and system for preventing historical video playback data from being tampered with. Background technique [0002] The network video surveillance system is an IP network-based image remote monitoring, transmission, storage, and management system. It has a wide range of applications and is commonly used in important places such as roads, airports, railway stations, shopping malls, vehicles, and homes. With the help of the network, the video surveillance system can not only provide real-time viewing of video data, but also play back the stored historical video for users to view. [0003] However, the following security risks may exist during video playback: illegal replacement and access of front-end equipment; system loopholes and weak passwords of network video recorders; security issues of video surveillance system managemen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/239H04N21/432H04N21/6334H04N21/643H04N21/647
CPCH04N21/2393H04N21/4325H04N21/63345H04N21/643H04N21/64738
Inventor 胡一凡殷力蔡文刘华毕赢
Owner WUHAN SOUTH SAGITTARIUS INTEGRATION CO LTD
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