Method and system for encrypting video streams in real time through SM1 cryptographic algorithm

A video stream and video technology, which is applied in the field of real-time encryption of video streams using the national secret SM1 algorithm, which can solve problems such as data format invariance and data operability, video encryption, and application restrictions.

Inactive Publication Date: 2015-02-25
INST OF INFORMATION ENG CHINESE ACAD OF SCI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method does not consider the data format invariance and data operability, and it is difficult to encrypt the video in transmission, so the application is greatly limited

Method used

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  • Method and system for encrypting video streams in real time through SM1 cryptographic algorithm
  • Method and system for encrypting video streams in real time through SM1 cryptographic algorithm

Examples

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Embodiment 1

[0031] A method for real-time encryption of video streams using the national secret SM1 algorithm, comprising the following steps:

[0032] Step 1: Use the encryption camera to shoot plaintext video, get the video stream, and send the video stream to the built-in encryption module of the encryption camera through the data bus, and the encryption module encrypts the video stream;

[0033] Step 2: After the encryption module encrypts the video stream, the ciphertext video is obtained, and the ciphertext video is sent to the video server through the network, and the video server stores the ciphertext video;

[0034] Step 3: the decryption client sends a video acquisition request to the video server, requesting to acquire the ciphertext video on the video server;

[0035] Step 4: The video server receives the video acquisition request sent by the decryption client, and sends the requested ciphertext video to the decryption client;

[0036] Step 5: Decryption The client receives t...

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PUM

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Abstract

The invention relates to a method and system for encrypting video streams in real time through an SM1cryptographic algorithm. The method comprises the following steps that an encryption camera is used for shooting plaintext videos to obtain video streams, and the video streams are sent to an encryption module in the encryption camera through a data bus; after the encryption module encrypts the video streams, the ciphertext videos are sent to a video server through the network, and the video server stores the ciphertext videos; an decryption client side sends a video capturing request to the video server, and the video server receives the video capturing request sent by the decryption client side and sends the requested ciphertext videos to the decryption client side; the decryption client side receives the ciphertext videos sent by the video server, decrypts the ciphertext videos and plays the decipher videos. The method is mainly applied to intranet monitoring systems and large-scale monitoring systems, video decryption is undertaken by a special server, so that a big server screen only needs to access to a decipher server and does not need to do video decryption tasks.

Description

technical field [0001] The invention relates to a method for encrypting video streams, in particular to a method and system for real-time encryption of video streams using the national secret SM1 algorithm. Background technique [0002] With the rapid development of video coding technology and network technology, video conferencing, digital TV, video chat, online film and television, etc. have gradually become a part of people's daily life. Video conferencing is widely used due to its fast and real-time characteristics. However, these video services are vulnerable to human-made attacks in an open network environment, such as data interception, information theft, data tampering, and data addition and deletion. For the government, enterprise, military, security monitoring and other fields, the security requirements for video content are higher. How to ensure the security of video content is one of the current research focuses in the multimedia field. [0003] At present, auth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/2347H04N21/4405H04N7/18
CPCH04N7/18H04N21/4405H04N21/4408
Inventor 刘庆超芦翔吕世超潘磊汪明伟江再伟孙兆曙
Owner INST OF INFORMATION ENG CHINESE ACAD OF SCI
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