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Audio file encryption and decryption method

A technology of audio files and encryption methods, which is applied in the field of encryption and decryption of audio files, and can solve problems such as copyright violations and rights infringements

Inactive Publication Date: 2017-07-07
北京音未文化传媒有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, network users can easily obtain and use such original multimedia files for free directly through online playing or downloading. , at the same time, this behavior is also suspected of violating the copyright law

Method used

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  • Audio file encryption and decryption method
  • Audio file encryption and decryption method
  • Audio file encryption and decryption method

Examples

Experimental program
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Embodiment Construction

[0038] The method for encrypting and decrypting audio stream files of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments of the present invention.

[0039] figure 1 It is a schematic structural diagram of a file transmission system based on an encrypted audio stream according to an embodiment of the present invention.

[0040] Such as figure 1 Shown, the file transmission system of this embodiment mainly comprises: browser (Browser) F, third-party website (3rdparty website) A, login website (Login website) B, API server (API server) C, UGXP server (UGXP server) ) D, resource server (ie Res server) E. in:

[0041] The browser F is used to display the content of the website browsed by the user, and provide operation interaction between the user and the website.

[0042] The third-party website A is used to provide the content browsed by the user.

[0043] The API server C is used to identify and auth...

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PUM

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Abstract

The invention discloses an audio file encryption and decryption method. The encryption method comprises the steps of A, preparing an encryption algorithm alg key and an encryption and decryption initial value iv; B, selecting au audio encoding manner for encoding original audio data; C, initializing an OGG output stream, distributing a binary stream serial number serial-no for a current audio stream, and setting a page sequence number page-seq-no as zero; D, taking a bit of audio data wave-data-1 with a fixed length, encoding the audio data by use of a given audio encoding manner to obtain an encoded binary data block data-block-1; E, writing the binary data block data-block-1 in the OGG stream to obtain a plurality of OGG pages; and F, carrying out encryption calculation on load of the page by use of the prepared encryption parameters in step A for the new generated OGG page. By use of the method, encryption transmission is favorably carried out on the audio file, thus the copyright protection for multimedia resources is realized.

Description

technical field [0001] The invention relates to network communication and multimedia file transmission technology, in particular to an encryption and decryption method for audio files. Background technique [0002] In recent years, with the development of Internet technology, fundamental changes have taken place in the ways and means for people to obtain multimedia files, such as digital audio and video films in CD, VCD / DVD format, etc. From the previous purchase of physical goods with CD, VCD, DVD as the carrier, it has changed to the way of online playback or downloading from the Internet through various electronic smart terminals, such as PCs, tablet computers, and mobile smart terminals (i.e. mobile phones). . [0003] Since the multimedia files published on the Internet mostly exist in the form of original files, some of them simply divide the original files and store them on the network in the form of several file fragments; Files are transferred based on the HyperTe...

Claims

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Application Information

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IPC IPC(8): G06F21/60H04L29/06H04L9/32
CPCG06F21/602G06F2221/2107H04L9/3213H04L63/04H04L63/08
Inventor 张达林
Owner 北京音未文化传媒有限责任公司