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Blowfish algorithm-based H.264 video coding method and transmission encryption system

A video coding and algorithm technology, applied in the field of data security, can solve problems such as fast speed and difficult control of sequence passwords, and achieve the effect of improving accuracy

Inactive Publication Date: 2016-07-13
STATE GRID CORP OF CHINA +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sequence ciphers use combined networks and other sequence methods to generate more complex networks in order to achieve more complex sequences. Sequence ciphers are theoretically difficult to control, and most of them need to be implemented by hardware, and the speed is not as fast as symmetric keys. fast

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  • Blowfish algorithm-based H.264 video coding method and transmission encryption system
  • Blowfish algorithm-based H.264 video coding method and transmission encryption system

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0030] This method is based on the H.264 video encoding method, based on the Blowfish algorithm, and obtains a good compromise between security and encryption efficiency without reducing the security of the algorithm, establishes a video encryption transmission model, and verifies the feasibility of the method .

[0031] The Blowfish algorithm is a symmetric block encryption algorithm. The algorithm has a core encryption function: BF_En(). The input of this function is 64-bit plaintext information, which is output in the form of 64-bit ciphertext information after calculation. Encrypting information with the Blowfish algorithm requires two processes: key preprocessing and information encryption...

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Abstract

The invention discloses a Blowfish algorithm-based H.264 video transmission encryption method, which is characterized by comprising a terminal module, an RTSP agent module, and a video source registration and data server module, wherein the terminal module is used for acquiring a video and transmitting the video to a video server, acquiring a video file from a video database and online playing the video file; the RTSP agent module is used for authenticating the terminal and forwarding a video stream and shielding the video source server; the video source database module is used for storing information of all video acquisition terminals and using an RTSP agent to acquire the information of the terminals via the database; and the video source registration server module is used for being in charge of online registration for the video acquisition terminals. The method of the invention has the beneficial effects that the method is based on the H.264 video coding method and based on the Blowfish algorithm, good compromise between safety and encryption efficiency is acquired in a condition of not reducing the algorithm security, a video encryption transmission model is built, and the feasibility of the method is verified.

Description

technical field [0001] The invention relates to an H.264 video coding method and a transmission encryption system based on a Blowfish algorithm, and belongs to the technical field of data security. Background technique [0002] With the rapid development of computer technology and network technology, network multimedia service has become a new application field in network service. However, due to the openness and anonymity of the network, the multimedia content transmitted on the network is vulnerable to attack. However, traditional video encryption algorithms cannot meet the requirements of different network multimedia services. How to design video encryption algorithms that meet different application requirements is very important to protect the security of video content. H.264 is currently one of the most popular video coding standards. Compared with traditional video coding standards, H.264 can obtain a lower bit rate with the same video quality, but with a greatly incr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/2347H04N21/254H04N21/6437
CPCH04N21/6437H04N21/2347H04N21/2541
Inventor 徐绍军陈飞李艺卢陈越覃华勤申少辉王莹煜张春号王伟金鑫郑磊
Owner STATE GRID CORP OF CHINA