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A kind of media cloud system and video encryption, decryption method

An encryption method and video technology, applied in the field of media cloud, can solve problems such as stream piracy and hotlinking

Active Publication Date: 2022-04-22
COMMUNICATION UNIVERSITY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a media cloud system and a video encryption and decryption method to solve the technical problems of streaming and hotlinking from the media cloud in the prior art

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  • A kind of media cloud system and video encryption, decryption method
  • A kind of media cloud system and video encryption, decryption method
  • A kind of media cloud system and video encryption, decryption method

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Embodiment Construction

[0058]In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. 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.

[0059] Relying on the powerful resources provided by the media cloud, video operators can easily provide users with high-quality video services guaranteed by QoS. However, efficient video management and distribution with the help of the media cloud also faces severe security challenges. These challenges mainly come from two aspects: 1) Video itself has high-value attributes. Traditio...

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Abstract

The invention provides a media cloud system and video encryption and decryption methods, and relates to the field of media clouds. The video encryption method includes: obtaining a video to be encrypted, the video is compressed and encoded, and the format of the video is a set containing a plurality of elements; based on the video, an access structure is constructed, and the access structure includes virtual nodes generating a system public key and a system management key; acquiring network adaptation layer unit data in the video, and encrypting the video in combination with the system public key and access structure to generate ciphertext.

Description

technical field [0001] The invention relates to the field of media cloud, in particular to a media cloud system and video encryption and decryption methods. Background technique [0002] The advent of the big data era has brought huge challenges to data storage, transmission, management, use and other aspects. As a new service model, cloud computing integrates massive computing resources such as networks, servers, storage, application software, and services to form a configurable resource sharing pool. Users can access and obtain nearly "endless" resources conveniently and quickly through the network. computing power without requiring a large upfront investment. Due to this characteristic, cloud computing has also become an inevitable choice to deal with many problems in the era of big data. [0003] Multimedia data (video, sound, pictures, etc.) is an important source of big data, and building a "media cloud" has become one of the important solutions for the media industr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/4408H04N21/4405H04L9/08
CPCH04N21/4408H04N21/4405H04L9/0863H04L9/0869
Inventor 杨成李皓刘剑波
Owner COMMUNICATION UNIVERSITY OF CHINA