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A distributed encryption method for offline video

An offline video and encryption method technology, applied in the media field, can solve performance problems and other problems, and achieve the effect of simple method process, good encryption effect, and low difficulty in operation

Active Publication Date: 2020-01-17
COMMUNICATION UNIVERSITY OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Redundant disk read and write overhead and multiple resource application processes cause serious performance problems in the implementation of MapReduce-based algorithms
At the same time, the Reduce task needs to wait for all Map tasks to be completed before it can start, which also causes a large degree of time overhead

Method used

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  • A distributed encryption method for offline video
  • A distributed encryption method for offline video
  • A distributed encryption method for offline video

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Embodiment Construction

[0038] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so that implementers of the present invention can fully understand how the present invention uses technical means to solve technical problems, and achieve the realization process of technical effects and according to the above-mentioned realization process The present invention is implemented concretely. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0039] Since there are serious performance problems in the implementation of the MapReduce algorithm, the present invention proposes a new distributed encryption method. Next, the execution process of the method according to the specific embodiments of the present inventio...

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Abstract

The invention discloses a distributed encryption method for an off-line video. The method comprises: off-line video data are segmented into video fragmentation data that are stored; according to the video fragmentation data, an elastic distributed data set is constructed, wherein each element in the elastic distributed data set is one video fragmentation data; all elements in the elastic distributed data set are distributed to all node work stations; and the node work stations carry out encryption processing on the video fragmentation data and output encryption results. With the method, distributed encryption on an off-line video can be realized rapidly. Compared with the prior art, the method has advantages of simple process, low operation realization difficulty, and good encryption effect.

Description

technical field [0001] The invention relates to the field of media, in particular to a distributed encryption method for offline video. Background technique [0002] In computer data processing applications, video encryption is a relatively common data processing application. Due to the large amount of video data, usually video encryption operations need to consume a large amount of computing resources. [0003] With the continuous development of distributed system technology, more and more technical fields use distributed data processing technology to reduce the data processing pressure of a single processing system. Distributed data processing technology has also been applied to the field of video encryption. [0004] In the prior art, a native parallel computing framework (map-reduce MapReduce) is usually used to perform distributed encryption on video. Use MapReduce for video encryption. Inside the MapReduce task, in order to prevent the failure of the Reduce task, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/231H04N21/2343H04N21/2347H04N21/4385H04N21/6334
CPCH04N21/231H04N21/234345H04N21/2347H04N21/43853H04N21/63345
Inventor 杨成吴晓雨沈萦华周阳刘剑波
Owner COMMUNICATION UNIVERSITY OF CHINA
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