Method for decrypting encrypted audio data file and device thereof
An audio data, encrypted technology, used in encryption devices with shift registers/memory, electrical components, digital transmission systems, etc., can solve the problem of incomplete content of audio data files, incomplete content, and inability to play audio data files. and other problems to achieve the effect of improving the scope of use and ensuring the effectiveness
Active Publication Date: 2014-05-21
苏州智高嘉华科技有限公司
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Problems solved by technology
[0002] At present, the content of the original audio data file may be affected during the encryption process or transmission process of the audio data file, thus making the content of the audio data file incomplete
However, after the current operator decrypts the received audio data file, he does not know that the audio data file is an invalid audio data file that cannot be played or has incomplete content.
Method used
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Embodiment Construction
[0050] Such as figure 1 As shown, the present invention provides a kind of method that encrypted audio data file is decrypted, comprises the following steps:
[0051] S10. Put the received audio carrier signal into the cache data linked list.
[0052] In step S10, the following sub-steps are also included:
[0053] S101. Create a thread for receiving an audio carrier signal, so as to receive the sent audio carrier signal.
[0054] S102. Store the received audio carrier signal in a cached data link list. When the audio carrier signals stored in the cache data link list reach the storage limit of the cache data link list, sorting is performed according to the receiving time of the audio carrier signals, so as to automatically delete the audio carrier signal with the earliest receiving time.
[0055] S103. Create a thread for processing the audio carrier signal, so as to process the received audio carrier signal.
[0056] S20. Extract the audio carrier signal stored in the bu...
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The invention relates to a method for processing an audio file, in particular to a method for decrypting an encrypted audio data file. The method comprises the following steps: putting a received audio carrier signal into a cache data chain table; performing filtering processing on the audio carrier signal to remove cluster; demodulating the audio carrier signal to reduce into a digital audio file; identifying whether the digital audio file is complete or not; judging the encryption way of the digital audio file, and decrypting; verifying the decrypted digital audio file and identifying whether the decrypted digital audio file is a valid digital audio file or not; playing the valid digital audio file. A device for implementing the method comprises an audio carrier receiving module, a filtering module, a demodulating module, a lead byte judging module, a decrypting module, a verifying module and a playing module. By adopting the method and the device, the received audio carriers can be decrypted and verified rapidly, and the validity of the decrypted digital audio file can be ensured.
Description
technical field [0001] The invention relates to an audio file processing method, in particular to a method and device for decrypting encrypted audio data files. Background technique [0002] At present, the content of the original audio data file may be affected during the encryption process or the transmission process of the audio data file, thus making the content of the audio data file incomplete. However, after the current operator decrypts the received audio data file, he does not know that the audio data file is an invalid audio data file that cannot be played or has incomplete content. [0003] Based on the above problems, there is an urgent need for an audio file decryption method that can identify the validity of encrypted audio data files during the decryption process. Contents of the invention [0004] In view of the deficiencies in the above problems, the present invention provides a method that can realize fast decryption and verification of the received audi...
Claims
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IPC IPC(8): H04L1/00H04L9/06
Inventor 姚为朱黎明
Owner 苏州智高嘉华科技有限公司