CN114282246A - Audio file encryption processing method, device, storage medium and device - Google Patents

Abstract

The invention discloses an encryption processing method, device, storage medium and equipment for audio files. Wherein, the method includes: acquiring a plurality of encrypted data blocks in the original audio file; dividing each of the above encrypted data blocks into a plurality of encrypted packet data, wherein each of the above encrypted packet data includes: a plurality of sample values; After performing position swapping processing on a plurality of the sampled values in each of the above encrypted data blocks, performing position swapping processing on a plurality of the above encrypted packet data in each of the above encrypted data blocks to obtain an encrypted audio file. The invention solves the technical problems that the encryption algorithm in the prior art has too single algorithm or high computational complexity.

Description

Audio file encryption processing method, device, storage medium and device

technical field

The present invention relates to the technical field of media file encryption and decryption, and in particular, to a method, device, storage medium and device for encryption processing of audio files.

Background technique

In the field of communication technology, the sender and the receiver perform operations such as transmission, recording, and storage through the network during the call; when transmitting, recording, and storing audio files, in order to protect the audio content from being stolen, it is usually necessary to send audio files. The file is encrypted. After receiving the audio file transmitted by the sender user, the receiver user decrypts it first and then plays it.

However, in the prior art, the methods for encrypting audio files include: stream encryption algorithms whose keys and algorithms are too single, full encryption algorithms with high computational complexity, and layered encryption algorithms; stream encryption algorithms are too simple and have low security. , the calculation process of the complete encryption algorithm and the layered encryption algorithm is more complicated, which brings inconvenience to the user.

For the above problems, no effective solution has been proposed yet.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide an encryption processing method, device, storage medium and device for audio files, so as to at least solve the technical problems of too single algorithm or high computational complexity in the encryption algorithm in the prior art.

According to an aspect of the embodiments of the present invention, an encryption processing method for an audio file is provided, including: acquiring multiple encrypted data blocks in an original audio file; dividing each of the foregoing encrypted data blocks into multiple encrypted packet data, wherein , each of the above-mentioned encrypted packet data includes: a plurality of sample values; after performing position swapping processing on the plurality of above-mentioned sample values in each of the above-mentioned encrypted data blocks, a plurality of above-mentioned encrypted packets in each of the above-mentioned encrypted data blocks are processed. The data is subjected to position swap processing to obtain an encrypted audio file.

Optionally, the above-mentioned obtaining of multiple encrypted data blocks in the original audio file includes: obtaining the sampling rate of the above-mentioned original audio file; according to the above-mentioned sampling rate, setting consecutive N sampling points in the above-mentioned original audio file as the above-mentioned encrypted data Each of the above encrypted data blocks is divided into M pieces of the above encrypted packet data, and each of the above encrypted packet data has a sampling point K=N/M.

Optionally, the above method performs position swap processing on the plurality of sample values in each of the above-mentioned encrypted packet data in the following manner: the position is performed on the first sample value and the Kth sample value in each of the above-mentioned encrypted packet data. Swapping, and performing position swapping on the J th sample value and the K-J+1 th sample value in each of the above encrypted packet data.

Optionally, the above-mentioned position swap processing is performed on a plurality of the above-mentioned encrypted grouped data in each of the above-mentioned encrypted data blocks to obtain the above-mentioned encrypted audio file, including: the first grouped data in the above-mentioned encrypted data block and the Wth The packet data is swapped in position, and the L th packet data and the W-L+1 th packet data in the above-mentioned encrypted data block are swapped in position, so as to complete the position swap processing of the W packet data, and the above encryption is obtained. post audio file.

According to another aspect of the embodiments of the present invention, there is also provided an encryption processing device for an audio file, including: an acquisition module for acquiring a plurality of encrypted data blocks in the original audio file; a division module for each of the above The encrypted data block is divided into a plurality of encrypted packet data, wherein each of the above encrypted packet data includes: a plurality of sample values; a processing module configured to perform position matching on the plurality of sample values in each of the above encrypted packet data After the swapping process, a position swapping process is performed on a plurality of the above-mentioned encrypted packet data in each of the above-mentioned encrypted data blocks, so as to obtain an encrypted audio file.

Optionally, the above-mentioned acquisition module includes: an acquisition unit for acquiring the sampling rate of the above-mentioned original audio file; and a processing unit for setting consecutive N sampling points in the above-mentioned original audio file as the above-mentioned encryption according to the above-mentioned sampling rate A data block, wherein each encrypted data block is divided into M pieces of the encrypted packet data, and each of the encrypted packet data has a sampling point K=N/M.

Optionally, the above-mentioned apparatus performs position swap processing on the plurality of sample values in each of the above-mentioned encrypted packet data in the following manner: the position of the first sample value and the Kth sample value in each of the above-mentioned encrypted packet data is performed. Swapping, and performing position swapping on the J th sample value and the K-J+1 th sample value in each of the above encrypted packet data.

Optionally, the above-mentioned processing module is also used for: the first grouping data and the Wth grouping data in the above-mentioned encrypted data block are exchanged for position, and the Lth grouping data and the Wth grouping data in the above-mentioned encrypted data block are exchanged. -L+1 pieces of packet data are exchanged in position to complete the position exchange process of W pieces of packet data, and the above encrypted audio file is obtained.

According to another aspect of the embodiments of the present invention, a computer-readable storage medium is also provided, where the computer-readable storage medium stores a plurality of instructions, and the instructions are suitable for being loaded and executed by a processor of any one of the audio files described above. encryption processing method.

According to another aspect of the embodiments of the present invention, an electronic device is also provided, including a memory and a processor, the memory stores a computer program, and the processor is configured to run the computer program to execute any one of the audio File encryption processing method.

In the embodiment of the present invention, by acquiring multiple encrypted data blocks in the original audio file; each above-mentioned encrypted data block is divided into a plurality of encrypted group data, wherein each of the above-mentioned encrypted group data includes: a plurality of sample values After a plurality of above-mentioned sample values in each above-mentioned encrypted packet data are carried out position swap processing, a plurality of above-mentioned encrypted packet data in each above-mentioned encrypted data block are carried out position swap processing, obtain the audio file after encryption, reach The purpose of file encryption through position swapping is achieved, thereby realizing the technical effect of completing double encryption under the condition of less calculation amount, and solving the problem that the encryption algorithm in the prior art has too single algorithm or high computational complexity. technical problem.

Description of drawings

The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

1 is a flowchart of an encryption processing method for an audio file according to an embodiment of the present invention;

2 is a schematic diagram of an optional single pendulum reciprocating motion model according to an embodiment of the present invention;

3 is a schematic structural diagram of an optional original audio file according to an embodiment of the present invention;

4 is a schematic structural diagram of an optional encrypted audio file according to an embodiment of the present invention;

5 is a schematic diagram of an optional encryption process flow of an audio file according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of an apparatus for encrypting an audio file according to an embodiment of the present invention.

Detailed ways

In order to make those skilled in the art better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Embodiments are part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that the terms "first", "second" and the like in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used may be interchanged under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those expressly listed Rather, those steps or units may include other steps or units not expressly listed or inherent to these processes, methods, products or devices.

Example 1

According to an embodiment of the present invention, an embodiment of an encryption processing method for an audio file is provided. It should be noted that the steps shown in the flowchart of the accompanying drawing can be executed in a computer system such as a set of computer-executable instructions, Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that herein.

FIG. 1 is a flowchart of an encryption processing method for an audio file according to an embodiment of the present invention. As shown in FIG. 1 , the method includes the following steps:

Step S102, obtaining multiple encrypted data blocks in the original audio file;

Step S104, dividing each of the above-mentioned encrypted data blocks into a plurality of encrypted packet data, wherein each of the above-mentioned encrypted packet data includes: a plurality of sample values;

Step S106, after performing position swapping processing on a plurality of the above-mentioned sample values in each of the above-mentioned encrypted data blocks, performing positional swapping processing on a plurality of the above-mentioned encrypted packet data in each of the above-mentioned encrypted data blocks to obtain an encrypted audio file. .

In the embodiment of the present invention, the executive body of the encryption processing scheme of the audio file provided in the above steps S102 to S106 is a server, and the above server is used to obtain a plurality of encrypted data blocks in the original audio file; and the above encrypted data blocks are grouped processing, to obtain encrypted packet data, each of the above-mentioned encrypted packet data has a plurality of sample values; in the encryption process, first perform position swap processing on the plurality of sample values in the above-mentioned encrypted packet data to obtain encrypted encrypted packet data , and then perform position swapping processing on the encrypted packet data after encryption to obtain the encrypted data block after encryption. After the above-mentioned two position swapping processing at different levels, the encrypted audio file is finally obtained.

It should be noted that the above-mentioned server can be built in the transmitting end of the above-mentioned audio file, and the server adopts the above-mentioned steps to realize data encryption after obtaining the audio file from the above-mentioned transmitting end; The size can be set according to the actual situation, but the minimum size should not be less than the size of an encrypted data block.

It should also be noted that the encryption processing method of the above-mentioned audio file is designed according to the motion law of the gravitational pendulum. It is an ideal physical model, which consists of an idealized pendulum ball and a cycloid. The cycloid is provided by a thin wire with no mass and cannot be stretched; the density of the pendulum ball is relatively large, and the radius of the ball is much smaller than the length of the cycloid, Therefore, the pendulum ball can be regarded as a mass point, and the pendulum is composed of the cycloid and the pendulum ball.

As an optional embodiment, as shown in FIG. 2 , the three points A, B, and C are the three points that the mass point of the simple pendulum passes through. In this embodiment of the present invention, the pendulum length and gravity of the simple pendulum are not considered. size, and the three points A, B, and C are symmetrical points from point B to the origin of the other end of the cycloid. The positions of point A and point C are the same, and there is a symmetrical relationship; therefore, when encrypting, if The extracted encrypted packet data only contains three sampling points A, B, and C, then the positions of the sampling values of points A and C are exchanged, and the sampling value of point B remains unchanged; if the sampling points in the extracted encrypted packet data are It is an even number of sampling points, such as four sampling points A, B, C, and D. In this way, the positions of A and D are exchanged, and the positions of B and C are exchanged, so as to complete the data position exchange in the encrypted packet data; The data position swap within the packet data can be referred to as a single pendulum.

Optionally, after the above-mentioned encrypted packet data completes the position swap, continue to use the above-mentioned principle to perform data position swap on the encrypted packet data, so as to complete the position swap in the encrypted packet data in the encrypted data block; the above is in the encrypted data block. The encrypted packet data position swap can be called a double pendulum.

As an optional embodiment, in the decryption process, the receiving end of the audio information needs to grasp the size of each encrypted packet data and the size of the encrypted data block, according to the size of each encrypted packet data and the encrypted data block. The size can easily calculate the start position and end position of each encrypted packet data in the audio file, and can further calculate the number of sampling points in the packet. According to the reverse process of encryption, the encrypted packet data is first swapped. , and then perform data position exchange on the sampling points in the encrypted packet data to complete the decryption work.

It should be noted that the above method can be applied to, but is not limited to, a user's real-time call. During a real-time call, the call audio data can be encrypted in real time, thereby improving the security of the user's call.

Through the embodiment of the present invention, the encryption is only completed by the data position exchange, the algorithm calculation is simple, and there is no complicated calculation amount; and the decryption process is also simple, the above-mentioned encryption algorithm adopts the double security of the double key, and only masters the double key ( That is, the size of the above-mentioned encrypted packet data and the size of the encrypted data block) can complete the audio decryption, thus ensuring the encryption security of the audio file content, and achieving the purpose of file encryption through The technical effect of double encryption is completed under the condition of computational complexity, thereby solving the technical problems of the encryption algorithm in the prior art that the algorithm is too single or the computational complexity is high.

In an optional embodiment, the above-mentioned acquisition of multiple encrypted data blocks in the original audio file includes:

Step S202, obtaining the sampling rate of the above-mentioned original audio file;

Step S204, according to the above-mentioned sampling rate, set consecutive N sampling points in the above-mentioned original audio file as the above-mentioned encrypted data blocks, wherein each of the above-mentioned encrypted data blocks is divided into M pieces of the above-mentioned encrypted packet data, and each of the above-mentioned encrypted packet data Owned sampling points K=N/M.

In the embodiment of the present invention, the above-mentioned obtaining a plurality of encrypted data blocks in the original audio file and completing the encrypted data grouping, after obtaining the encrypted grouping data, the sampling rate of the above-mentioned original audio file is obtained; according to the above-mentioned sampling rate, the above-mentioned original audio file The consecutive N sampling points in are set as the above encrypted data block.

As an optional embodiment, according to the sampling rate of the original audio, the server sets each consecutive N sampling points of the original audio file as an encrypted data block, wherein each encrypted data block is divided according to a preset logic, Finally, it can be divided into M encrypted data packets, and each encrypted data packet has K=N/M sampling points.

It should be noted that the above-mentioned preset logic is a preset grouping rule, which is used to divide the above-mentioned encrypted data block into a plurality of encrypted grouped data.

In an optional embodiment, the above method performs position swapping processing on multiple sample values in each of the above encrypted packet data in the following manner:

Step S302, performing position exchange on the first sample value and the Kth sample value in each of the above-mentioned encrypted packet data, and on the Jth sample value and the K-J+1th sample value in each of the above-mentioned encrypted packet data. The positions of the sampled values are swapped.

In this embodiment of the present invention, firstly perform position swapping processing on a plurality of sample values in each of the above encrypted packet data, by performing position swapping on the first sample value and the K th sample value in each of the above encrypted packet data Swapping, and performing position swapping on the J th sample value and the K-J+1 th sample value in each of the above encrypted packet data.

As an optional embodiment, as shown in the schematic diagram of the original audio file structure shown in FIG. 3 , in each encrypted packet data, the positions of the first sampling point and the Kth sampling point are exchanged, and the Jth sampling point is The positions of the sampling point and the K-J+1th sampling point are exchanged, so as to complete the first encryption, and obtain the schematic diagram of the structure of the encrypted audio file as shown in FIG. 4 .

It should be noted that, if the above audio file size is an audio file of 8 bits, that is, the sampling value of each sampling point is a byte value, the data of the first byte in each group and the K-J+1 Swap bytes of data. If the size of the above audio file is 16 bits, and each sampling point is 16 bits, that is, a double-byte value, the size of each position swap is two bytes.

In an optional embodiment, the above-mentioned position swapping processing is performed on a plurality of the above-mentioned encrypted packet data in each of the above-mentioned encrypted data blocks to obtain the above-mentioned encrypted audio file, including:

Step S402, the first grouping data and the Wth grouping data in the above-mentioned encrypted data block are exchanged in position, and the Lth grouping data and the W-L+1th grouping data in the above-mentioned encrypted data block are performed. Position swapping is performed to complete the position swapping process of the W pieces of packet data to obtain the above-mentioned encrypted audio file.

In this embodiment of the present invention, similar to the above-mentioned process of performing position swapping on multiple sample values in each of the above-mentioned encrypted packet data, the first packet data and the W-th packet data in the above-mentioned encrypted data block are processed. Position swapping, and performing position swapping to the Lth packet data and the W-L+1 packet data in the above-mentioned encrypted data block, to complete the position swapping process of the W packet data, obtain the above-mentioned encrypted audio file .

As an optional embodiment, if there are W encrypted packets in each encrypted data block, also according to the pendulum rule, the positions of the first packet data and the Wth encrypted packet data are exchanged, and the above encrypted data The position of the L th packet data and the W-L+1 th packet data in the block is exchanged, thereby completing the second encryption, and implementing the encryption process of the above audio file through the above two encryption steps.

Through the above steps, an encryption and decryption method for changing audio sampling point data based on pendulum motion can be implemented. As shown in the schematic diagram of the encryption process of audio files as shown in FIG. Grouping, perform position swapping of the sampled values in each group, and after completing the position swapping of the sampled values, the encrypted packet data is also subjected to the position swapping processing, and the encryption of the audio file is completed. The purpose is to achieve the technical effect of completing double encryption under the condition of less calculation amount, thereby solving the technical problems of the encryption algorithm in the prior art that the algorithm is too single or the computational complexity is high.

Example 2

According to an embodiment of the present invention, an embodiment of an apparatus for implementing the encryption processing of the audio file is also provided. FIG. 6 is a schematic structural diagram of an apparatus for encryption processing of an audio file according to an embodiment of the present invention, as shown in FIG. 6 . As shown, the above device includes: an acquisition module 60, a division module 62 and a processing module 64, wherein:

an acquisition module 60 for acquiring multiple encrypted data blocks in the original audio file;

A dividing module 62, configured to divide each of the above-mentioned encrypted data blocks into a plurality of encrypted packet data, wherein each of the above-mentioned encrypted packet data includes: a plurality of sample values;

The processing module 64 is configured to perform position swapping processing on a plurality of the above-mentioned encrypted packet data in each of the above-mentioned encrypted data blocks after performing position swapping processing on a plurality of the above-mentioned sample values in each of the above-mentioned encrypted data blocks, to obtain encrypted post audio file.

Optionally, the above-mentioned acquisition module includes: an acquisition unit for acquiring the sampling rate of the above-mentioned original audio file; and a processing unit for setting consecutive N sampling points in the above-mentioned original audio file as the above-mentioned encryption according to the above-mentioned sampling rate A data block, wherein each encrypted data block is divided into M pieces of the encrypted packet data, and each of the encrypted packet data has a sampling point K=N/M.

Optionally, the above-mentioned apparatus performs position swap processing on the plurality of sample values in each of the above-mentioned encrypted packet data in the following manner: the position of the first sample value and the Kth sample value in each of the above-mentioned encrypted packet data is performed. Swapping, and performing position swapping on the J th sample value and the K-J+1 th sample value in each of the above encrypted packet data.

Optionally, the above-mentioned processing module is also used for: the first grouping data and the Wth grouping data in the above-mentioned encrypted data block are exchanged for position, and the Lth grouping data and the Wth grouping data in the above-mentioned encrypted data block are exchanged. -L+1 pieces of packet data are exchanged in position to complete the position exchange process of W pieces of packet data, and the above encrypted audio file is obtained.

It should be noted here that the above-mentioned acquisition module 60, division module 62 and processing module 64 correspond to steps S102 to S106 in Embodiment 1, and the three modules have the same examples and application scenarios as the corresponding steps. It is limited to the content disclosed in the above-mentioned Embodiment 1.

It should be noted that, for the preferred implementation of this embodiment, reference may be made to the relevant description in Embodiment 1, and details are not repeated here.

According to an embodiment of the present invention, there is also provided an embodiment of a computer-readable storage medium. Optionally, in this embodiment, the above-mentioned computer-readable storage medium may be used to store the program code executed by the encryption processing of the audio file provided in the above-mentioned Embodiment 1.

Optionally, in this embodiment, the computer-readable storage medium may be located in any computer terminal in a computer terminal group in a computer network, or in any mobile terminal in a mobile terminal group.

Optionally, in this embodiment, a computer-readable storage medium is configured to store program codes for performing the following steps: acquiring multiple encrypted data blocks in the original audio file; dividing each encrypted data block into multiple encrypted data blocks; pieces of encrypted packet data, wherein each of the above encrypted packet data includes: a plurality of sample values; after performing position swapping processing on the plurality of sample values in each of the above encrypted data blocks A plurality of the above-mentioned encrypted packet data are subjected to position exchange processing to obtain an encrypted audio file.

Optionally, the above-mentioned computer-readable storage medium can also execute the program code of the following steps: obtain the sampling rate of the above-mentioned original audio file; according to the above-mentioned sampling rate, set consecutive N sampling points in the above-mentioned original audio file as the above-mentioned encrypted data. Each of the above encrypted data blocks is divided into M pieces of the above encrypted packet data, and each of the above encrypted packet data has a sampling point K=N/M.

Optionally, the above-mentioned computer-readable storage medium can also execute the program code of the following steps: performing position swapping on the first sampling value and the Kth sampling value in each of the above-mentioned encrypted packet data, and performing a position swap on each of the above-mentioned encrypted packet data. The positions of the J-th sampling value and the K-J+1-th sampling value in the packet data are swapped.

Optionally, the above-mentioned computer-readable storage medium can also execute the program code of the following steps: the first grouped data and the Wth grouped data in the above-mentioned encrypted data block are exchanged for position, and the above-mentioned encrypted data block is performed. The positions of the L th packet data and the W-L+1 th packet data are exchanged, so as to complete the position exchange processing of the W pieces of packet data, and obtain the above-mentioned encrypted audio file.

According to an embodiment of the present invention, an embodiment of a processor is also provided. Optionally, in this embodiment, the above-mentioned computer-readable storage medium may be used to store the program code executed by the encryption processing of the audio file provided in the above-mentioned Embodiment 1.

An embodiment of the present application provides an electronic device, the device includes a processor, a memory, and a program stored in the memory and running on the processor. When the processor executes the program, the following steps are implemented: acquiring multiple encrypted data in an original audio file data block; dividing each of the above-mentioned encrypted data blocks into a plurality of encrypted packet data, wherein each of the above-mentioned encrypted packet data includes: a plurality of sample values; After the position swapping process, the position swapping process is performed on a plurality of the above-mentioned encrypted packet data in each of the above-mentioned encrypted data blocks, so as to obtain an encrypted audio file.

Optionally, the above-mentioned electronic device can also execute the program code of the following steps: obtain the sampling rate of the above-mentioned original audio file; according to the above-mentioned sampling rate, set consecutive N sampling points in the above-mentioned original audio file as the above-mentioned encrypted data block, wherein , each of the above-mentioned encrypted data blocks is divided into M pieces of the above-mentioned encrypted packet data, and each of the above-mentioned encrypted packet data has a sampling point K=N/M.

Optionally, the above-mentioned electronic equipment can also execute the program code of the following steps: perform position swapping on the first sampling value and the Kth sampling value in each of the above-mentioned encrypted packet data, and perform position swapping on the first sampling value in each of the above-mentioned encrypted packet data; The position of the J-th sampling value and the K-J+1-th sampling value is swapped.

Optionally, the above-mentioned electronic equipment can also execute the program code of the following steps: the first grouped data in the above-mentioned encrypted data block and the Wth grouped data are exchanged for position, and the Lth in the above-mentioned encrypted data block is exchanged. The packet data and the W-L+1 th packet data are swapped in position, so as to complete the position swapping process of the W packet data, and the above-mentioned encrypted audio file is obtained.

The present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing a program initialized with the following method steps: obtaining a plurality of encrypted data blocks in an original audio file; is divided into a plurality of encrypted packet data, wherein each of the above encrypted packet data includes: a plurality of sample values; A plurality of the above-mentioned encrypted packet data in the encrypted data block are subjected to position swap processing to obtain an encrypted audio file.

The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages or disadvantages of the embodiments.

In the above-mentioned embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are only illustrative, for example, the division of the units may be a logical function division, and there may be other division methods in actual implementation, for example, multiple units or components may be combined or Integration into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of units or modules, and may be in electrical or other forms.

The units described as separate components may or may not be physically separated, and components shown as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

The integrated unit, if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes .

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (10)

1. An encryption processing method for an audio file, comprising:

acquiring a plurality of encrypted data blocks in an original audio file;

dividing each encrypted data block into a plurality of encrypted packet data, wherein each encrypted packet data comprises: a plurality of sampling values;

and after the position conversion processing is carried out on the plurality of sampling values in each encrypted packet data, the position conversion processing is carried out on the plurality of encrypted packet data in each encrypted data block to obtain an encrypted audio file.

2. The method of claim 1, wherein obtaining the plurality of encrypted data blocks in the original audio file comprises:

acquiring the sampling rate of the original audio file;

and setting continuous N sampling points in the original audio file as the encrypted data blocks according to the sampling rate, wherein each encrypted data block is divided into M encrypted packet data, and each encrypted packet data has a sampling point K which is N/M.

3. The method of claim 1, wherein the method performs a permutation of the location of the plurality of samples in each of the encrypted packets by:

and performing position swapping on the first sampling value and the Kth sampling value in each encrypted packet data, and performing position swapping on the J th sampling value and the K-J +1 th sampling value in each encrypted packet data.

4. The method according to claim 1, wherein said performing a location swapping process on a plurality of said encrypted packets in each said encrypted data block to obtain said encrypted audio file comprises:

and performing position swapping on the first grouped data and the W-th grouped data in the encrypted data block, and performing position swapping on the L-th grouped data and the W-L + 1-th grouped data in the encrypted data block to complete position swapping of the W grouped data and obtain the encrypted audio file.

5. An apparatus for encrypting an audio file, comprising:

the acquisition module is used for acquiring a plurality of encrypted data blocks in an original audio file;

a dividing module, configured to divide each encrypted data block into a plurality of encrypted packet data, where each encrypted packet data includes: a plurality of sampling values;

and the processing module is used for performing position conversion processing on the plurality of encrypted grouped data in each encrypted data block after performing position conversion processing on the plurality of sampling values in each encrypted grouped data block to obtain an encrypted audio file.

6. The apparatus of claim 5, wherein the obtaining module comprises:

the acquisition unit is used for acquiring the sampling rate of the original audio file;

and the processing unit is used for setting continuous N sampling points in the original audio file as the encrypted data blocks according to the sampling rate, wherein each encrypted data block is divided into M encrypted packet data, and each encrypted packet data has a sampling point K which is N/M.

7. The apparatus according to claim 5, wherein the apparatus performs the location swapping on the plurality of sample values in each of the encrypted packet data by:

and performing position swapping on the first sampling value and the Kth sampling value in each encrypted packet data, and performing position swapping on the J th sampling value and the K-J +1 th sampling value in each encrypted packet data.

8. The apparatus of claim 5, wherein the processing module is further configured to:

and performing position swapping on the first grouped data and the W-th grouped data in the encrypted data block, and performing position swapping on the L-th grouped data and the W-L + 1-th grouped data in the encrypted data block to complete position swapping of the W grouped data and obtain the encrypted audio file.

9. A computer-readable storage medium storing a plurality of instructions adapted to be loaded by a processor and to execute the method of cryptographic processing of an audio file of any one of claims 1 to 4.

10. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to perform the method of encrypting an audio file according to any one of claims 1 to 4.

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