Computer video data processing method

Abstract

The invention discloses a computer video data processing method. According to the computer video data processing method, the originally collected video information is compressed and encoded first to obtain the video data with high compression ratio; and dual encryption is carried out on the video data to be transmitted before the video data is transmitted, therefore, the cracking difficulty of a hacker is improved. In the first level encryption, the results of each unit on a nonlinear shifting register are obtained after performing a certain number of shifts and nonlinear transformations on the elements of the video data to be encrypted, and the first level encrypted output video data is obtained through a reversible transformation; and in the second level encryption, the last one ciphertext block in the generated first level encrypted output video data is used as a first target ciphertext block, the first target ciphertext block is decrypted to obtain the index value of the target ciphertext block, and second level encryption operation is performed on the index value of the first level encrypted output video data.

Description

technical field [0001] The invention relates to the field of computer data processing, in particular to a computer video data processing method. Background technique [0002] With the development of information technology, video data has increasingly become the main way for users to obtain information in daily life. Usually, the data volume of video data is relatively large (especially high-definition video, etc.), and data processing is performed under the requirements of limited communication channel transmission characteristics. transmission, it is easy to cause channel congestion. In order to reduce the storage space occupied by the video data and reduce the transmission bandwidth occupied during the transmission of the video data, the video data can be compressed and encoded to be stored or transmitted, and when the video data is played, the video data can be decoded and played. [0003] When performing data compression encoding on a data set arranged in a certain shap...

AI Technical Summary

Problems solved by technology

[0004] At present, there are two main methods to prevent video data from being pirated: one is to build a dedicated video network and isolate it at the network level; however, the construction cost of this method is too high to be promoted in the civilian market

The second is to use a private video transmission protocol. The person who formulates the video transmission protocol can completely see the customer's video data; the private video transmission protocol can be cracked, and all video data may be stolen after cracking, and it is difficult to connect with other video platforms. , very restrictive user use of video data

In traditional encryption processing, there are various encryption algorithms, but they are often relatively simple. Once the key is cracked, all video data will be obtained by hackers, making it difficult to guarantee information security.

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