阅读说明：本技术 密钥信息传输方法、装置、电子设备及计算机存储介质 (Key information transmission method and device, electronic equipment and computer storage medium ) 是由 张舒黎 任旭斌 马超 周泽恒 段品言 张焱 于 2020-07-07 设计创作，主要内容包括：本公开公开了一种密钥信息传输方法、装置、电子设备及计算机可读存储介质,应用于音视频发送端,获取待传输的目标密钥信息；通过音视频传输通道,传输目标密钥信息至音视频接收端。本公开中,音视频发送端在获取到目标密钥信息之后,通过音视频传输通道将目标密钥信息传输至音视频接收端,无需建立用于传输密钥信息的专用通道,可以降低密钥信息的传输开销。本公开提供的一种密钥信息传输装置、电子设备及计算机可读存储介质也解决了相应技术问题。(The disclosure discloses a key information transmission method, a key information transmission device, electronic equipment and a computer readable storage medium, which are applied to an audio and video transmitting end to obtain target key information to be transmitted; and transmitting the target key information to an audio and video receiving end through an audio and video transmission channel. According to the method and the device, after the audio and video sending end obtains the target key information, the target key information is transmitted to the audio and video receiving end through the audio and video transmission channel, a special channel for transmitting the key information does not need to be established, and the transmission overhead of the key information can be reduced. The key information transmission device, the electronic equipment and the computer readable storage medium provided by the disclosure also solve the corresponding technical problems.)

1. A key information transmission method is characterized in that the method is applied to an audio and video sending end and comprises the following steps:

acquiring target key information to be transmitted;

and transmitting the target key information to an audio and video receiving end through an audio and video transmission channel.

2. The method of claim 1, wherein the transmitting the target key information to an audio/video receiving end through an audio/video transmission channel comprises:

acquiring an encryption key and an encryption algorithm agreed in advance with the audio and video receiving terminal;

encrypting the target key information based on the encryption algorithm and the encryption key to obtain encryption key information;

and transmitting the encryption key information to the audio and video receiving end through the audio and video transmission channel.

3. The method according to claim 2, wherein the transmitting the encryption key information to the audio/video receiving end through the audio/video transmission channel comprises:

calculating a first check value of the encryption key information;

packaging the encryption key information and the first check value into a parameter packet;

and transmitting the parameter packet to the audio and video receiving end through the audio and video transmission channel.

4. The method of claim 3, wherein encapsulating the encryption key information and the first check value into a parameter packet comprises:

acquiring identification information of the audio and video receiving end;

and encapsulating the identification information, the encryption key information and the first check value into the parameter packet.

5. A key information transmission method is characterized in that the key information transmission method is applied to an audio and video receiving end and comprises the following steps:

and receiving the target key information sent by the audio and video sending end through the audio and video transmission channel.

6. The method according to claim 5, wherein the receiving target key information sent by an audio/video sending end through an audio/video transmission channel comprises:

receiving encryption key information sent by the audio and video sending end through the audio and video transmission channel, wherein the encryption key information comprises information obtained by encrypting the target key information by the audio and video sending end based on an encryption algorithm and an encryption key, and the encryption algorithm and the encryption key are generated by the audio and video sending end and the audio and video receiving end in advance by agreement;

acquiring a decryption key and a decryption algorithm which are predetermined by the audio and video transmitting terminal;

and decrypting the encrypted key information based on the decryption key and the decryption algorithm to obtain the target key information.

7. The method according to claim 6, wherein the receiving, through the audio/video transmission channel, the encryption key information sent by the audio/video sending end includes:

receiving a parameter packet sent by the audio and video sending end through the audio and video transmission channel, wherein the parameter packet is formed by packaging the encryption key information and a first check value, and the first check value is obtained by calculating the encryption key information by the audio and video sending end;

calculating a second check value of the encryption key information;

and judging whether the second check value is the same as the first check value or not, and if the second check value is the same as the first check value, acquiring the encryption key information.

8. The method according to claim 7, wherein the parameter packet includes identification information of the audio/video receiving end;

the calculating of the second check value of the encryption key information includes:

judging whether the identification information in the parameter packet is identification information of the parameter packet;

and if the identification information in the parameter packet is identification information of the parameter packet, executing the step of calculating the second check value of the encryption key information.

9. A key information transmission device is characterized in that the key information transmission device is applied to an audio and video sending end and comprises:

the first acquisition module is used for acquiring target key information to be transmitted;

and the first transmission module is used for transmitting the target key information to an audio and video receiving end through an audio and video transmission channel.

10. An electronic device, comprising:

a memory for storing a computer program;

a processor for executing the computer program in the memory to carry out the steps of the method of any one of claims 1 to 8.

11. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 8.

Technical Field

The present disclosure relates to the field of data transmission technologies, and in particular, to a method and an apparatus for transmitting key information, an electronic device, and a computer storage medium.

Background

At present, in the transmission process of audio and video data, in order to ensure the security of the audio and video data, encryption processing needs to be performed on the audio and video data, which requires the transmission of key information by an audio and video transmitting end and an audio and video receiving end, for example, the audio and video transmitting end and the audio and video receiving end establish a key channel for transmitting the key information, and then transmit the key information by means of the key channel.

However, when the key information is transmitted through the key channel, overhead of the audio/video transmitting end and the audio/video receiving end is increased, and when the number of the audio/video transmitting end and the number of the audio/video receiving end are large, a plurality of key channels need to be established, so that overhead of key transmission is further increased.

In summary, how to reduce the transmission overhead of the key information is a problem to be solved by those skilled in the art.

Disclosure of Invention

The purpose of the present disclosure is to provide a key information transmission method, which can solve the technical problem of how to reduce the transmission overhead of key information to a certain extent. The disclosure also provides a key information transmission device, an electronic device and a computer readable storage medium.

According to a first aspect of the embodiments of the present disclosure, there is provided a key information transmission method, applied to an audio/video transmitting end, including:

acquiring target key information to be transmitted;

and transmitting the target key information to an audio and video receiving end through an audio and video transmission channel.

Preferably, the transmitting the target key information to an audio/video receiving end through an audio/video transmission channel includes:

acquiring an encryption key and an encryption algorithm agreed in advance with the audio and video receiving terminal;

encrypting the target key information based on the encryption algorithm and the encryption key to obtain encryption key information;

and transmitting the encryption key information to the audio and video receiving end through the audio and video transmission channel.

Preferably, the transmitting the encryption key information to the audio/video receiving end through the audio/video transmission channel includes:

calculating a first check value of the encryption key information;

packaging the encryption key information and the first check value into a parameter packet;

and transmitting the parameter packet to the audio and video receiving end through the audio and video transmission channel.

Preferably, the encapsulating the encryption key information and the first check value into a parameter packet includes:

acquiring identification information of the audio and video receiving end;

and encapsulating the identification information, the encryption key information and the first check value into the parameter packet.

According to a second aspect of the embodiments of the present disclosure, there is provided a key information transmission method applied to an audio/video receiving end, including:

and receiving the target key information sent by the audio and video sending end through the audio and video transmission channel.

Preferably, the receiving, through the audio/video transmission channel, the target key information sent by the audio/video sending end includes:

receiving encryption key information sent by the audio and video sending end through the audio and video transmission channel, wherein the encryption key information comprises information obtained by encrypting the target key information by the audio and video sending end based on an encryption algorithm and an encryption key, and the encryption algorithm and the encryption key are generated by the audio and video sending end and the audio and video receiving end in advance by agreement;

acquiring a decryption key and a decryption algorithm which are predetermined by the audio and video transmitting terminal;

and decrypting the encrypted key information based on the decryption key and the decryption algorithm to obtain the target key information.

Preferably, the receiving, through the audio/video transmission channel, the encryption key information sent by the audio/video sending end includes:

receiving a parameter packet sent by the audio and video sending end through the audio and video transmission channel, wherein the parameter packet is formed by packaging the encryption key information and a first check value, and the first check value is obtained by calculating the encryption key information by the audio and video sending end;

calculating a second check value of the encryption key information;

and judging whether the second check value is the same as the first check value or not, and if the second check value is the same as the first check value, acquiring the encryption key information.

Preferably, the parameter packet includes identification information of the audio/video receiving end;

the calculating of the second check value of the encryption key information includes:

judging whether the identification information in the parameter packet is identification information of the parameter packet;

and if the identification information in the parameter packet is identification information of the parameter packet, executing the step of calculating the second check value of the encryption key information.

According to a third aspect of the embodiments of the present disclosure, there is provided a key information transmission apparatus, applied to an audio/video transmitting end, including:

the first acquisition module is used for acquiring target key information to be transmitted;

and the first transmission module is used for transmitting the target key information to an audio and video receiving end through an audio and video transmission channel.

According to a fourth aspect of the embodiments of the present disclosure, there is provided an electronic apparatus including:

a memory for storing a computer program;

a processor for executing the computer program in the memory to implement the steps of any of the methods described above.

According to a fifth aspect of embodiments of the present disclosure, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of any of the methods described above.

The key information transmission method is applied to an audio and video transmitting end and used for acquiring target key information to be transmitted; and transmitting the target key information to an audio and video receiving end through an audio and video transmission channel. According to the method and the device, after the audio and video sending end obtains the target key information, the target key information is transmitted to the audio and video receiving end through the audio and video transmission channel, a special channel for transmitting the key information does not need to be established, and the transmission overhead of the key information can be reduced. The key information transmission device, the electronic equipment and the computer readable storage medium provided by the disclosure also solve the corresponding technical problems.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a first flowchart illustrating a key information transmission method according to an example embodiment;

FIG. 2 is a second flow chart illustrating a method of key information transmission in accordance with one illustrative embodiment;

FIG. 3 is a third flowchart illustrating a method of key information transmission in accordance with one illustrative embodiment;

fig. 4 is a schematic diagram illustrating a configuration of a key information transmission apparatus according to an exemplary embodiment;

fig. 5 is a block diagram illustrating an electronic device 500 in accordance with an example embodiment.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

Referring to fig. 1, fig. 1 is a first flowchart illustrating a key information transmission method according to an exemplary embodiment.

The key information transmission method related to the present disclosure is applied to an audio/video transmitting end, and may include the following steps:

step S101: and acquiring target key information to be transmitted.

It can be understood that the target key information refers to key information to be transmitted to the audio/video receiving end by the audio/video transmitting end, and the type and content of the target key information can be determined according to actual needs.

Step S102: and transmitting the target key information to an audio and video receiving end through an audio and video transmission channel.

It can be understood that after the audio/video transmitting end acquires the target key information, the target key information can be transmitted to the audio/video receiving end through the audio/video transmission channel, so that the audio/video receiving end can receive the target key information directly through the audio/video transmission channel. It should be noted that the audio/video transmission channel in the present disclosure refers to a channel for transmitting audio/video data, that is, the present disclosure directly transmits the target key information by using the existing audio/video transmission channel, and there is no need to establish a channel specially used for transmitting the key information, so that the overhead is low.

The key information transmission method is applied to an audio and video transmitting end and used for acquiring target key information to be transmitted; and transmitting the target key information to an audio and video receiving end through an audio and video transmission channel. According to the method and the device, after the audio and video sending end obtains the target key information, the target key information is transmitted to the audio and video receiving end through the audio and video transmission channel, a special channel for transmitting the key information does not need to be established, and the transmission overhead of the key information can be reduced. The key information transmission device, the electronic equipment and the computer readable storage medium provided by the disclosure also solve the corresponding technical problems.

Referring to fig. 2, fig. 2 is a second flowchart illustrating a key information transmission method according to an exemplary embodiment.

The key information transmission method related to the present disclosure is applied to an audio/video transmitting end, and may include the following steps:

step S201: and acquiring target key information to be transmitted.

Step S202: and acquiring an encryption key and an encryption algorithm which are predetermined by the audio and video receiving end.

Step S203: and encrypting the target key information based on the encryption algorithm and the encryption key to obtain encryption key information.

Step S204: and transmitting the encryption key information to an audio and video receiving end through an audio and video transmission channel.

It can be understood that, when the target key information is transmitted, if the target key information is directly transmitted in a plaintext form, the target key information can be directly obtained after an external environment attacks the audio/video transmission channel, and the security of the target key information is difficult to protect. Correspondingly, after the audio and video receiving end receives the encryption key information, a decryption key and a decryption algorithm which are pre-agreed with the audio and video sending end can be obtained, and the encryption key information is decrypted based on the decryption key and the decryption algorithm to obtain target key information.

It should be noted that the present disclosure is not limited to the type of encryption key, encryption algorithm, decryption key, and decryption algorithm, and all of them may be determined according to actual needs. In addition, in the present application, the number of times and specific content of transmitting the target key information by the audio/video transmitting end, the pre-agreed encryption key, and the encryption algorithm may be determined according to actual needs, for example, the audio/video transmitting end may transmit the target key information to the audio/video transmitting end according to a preset transmitting frequency, at this time, the audio/video transmitting end acquires the target key information to be transmitted in the current round, acquires the encryption key and the encryption algorithm pre-agreed between the current round and the audio/video receiving end, encrypts the target key information based on the encryption algorithm and the encryption key to obtain the encryption key information of the current round, and transmits the encryption key information of the current round to the audio/video receiving end through the audio/video transmission channel, and the like, and.

Referring to fig. 3, fig. 3 is a third flowchart illustrating a key information transmission method according to an exemplary embodiment.

The key information transmission method related to the present disclosure is applied to an audio/video transmitting end, and may include the following steps:

step S301: and acquiring target key information to be transmitted.

Step S302: and acquiring an encryption key and an encryption algorithm which are predetermined by the audio and video receiving end.

Step S303: and encrypting the target key information based on the encryption algorithm and the encryption key to obtain encryption key information.

Step S304: a first check value of the encryption key information is calculated.

Step S305: and packaging the encryption key information and the first check value into a parameter packet.

Step S306: and transmitting the parameter packet to an audio and video receiving end through an audio and video transmission channel.

It can be understood that, although the security of the target key information can be enhanced after the target key information is encrypted, in the transmission process of the target key information, the situation that an attacker maliciously modifies the target key information or destroys the target key information may exist, which affects the transmission accuracy of the target key information, and in order to solve the problem, in the process of transmitting the encrypted key information to an audio/video receiving end through an audio/video transmission channel, a first check value of the encrypted key information may be calculated; packaging the encryption key information and the first check value into a parameter packet; and transmitting the parameter packet to an audio and video receiving end through an audio and video transmission channel. Therefore, after the audio and video receiving end receives the parameter packet containing the encryption key information and the first check value, the second check value of the encryption key information can be calculated; judging whether the second check value is the same as the first check value or not, and if the second check value is the same as the first check value, acquiring encryption key information; that is, in the present disclosure, the integrity and accuracy of the target key information can be ensured by means of the first check value and the second check value.

It should be noted that the method for calculating the check value can be determined according to actual needs, such as calculating the message check code by a symmetric key, calculating a signature value by using a private key, and the like. And when the parameter packet is transmitted to the audio and video receiving end through the audio and video transmission channel each time, the parameter packet and the audio and video code stream can be transmitted to the audio and video receiving end through the audio and video transmission channel, on one hand, the parameter packet can be hidden and protected by means of the audio and video code stream, on the other hand, the processing relation between the target key information and the audio and video code stream can be set, for example, the target key information received by the current wheel of the audio and video receiving end can be set for processing the audio and video code stream received by the current wheel of the current wheel, the target key information received by the current wheel of the audio and video receiving end can be set for processing the audio and video code stream received between a first time and a second time, the first time is the time when the current wheel of the audio and. In the key information transmission method, when an audio and video transmitting end needs to transmit a plurality of key information to corresponding audio and video receiving ends, the condition of wrong key information transmission may occur, and in order to avoid the condition, the audio and video transmitting end can acquire identification information of the audio and video receiving ends receiving target key information in the process of packaging the encrypted key information and a first check value into a parameter packet; and packaging the identification information, the encryption key information and the first check value into a parameter packet. Correspondingly, the audio/video receiving end can judge whether the audio/video receiving end is the receiver of the parameter packet according to the identification information in the parameter packet, for example, the audio/video receiving end can judge whether the identification information in the parameter packet is the identification information of the audio/video receiving end, if the identification information in the parameter packet is the identification information of the audio/video receiving end, the receiver of the parameter packet can be judged to be the audio/video receiving end, and if the identification information in the parameter packet is not the identification information of the audio/video receiving end, the receiver of the parameter packet can be judged not to be the audio/video receiving end.

The key information transmission method related to the present disclosure is applied to an audio/video receiving end, and may include the following steps: and receiving the target key information sent by the audio and video sending end through the audio and video transmission channel.

It can be understood that, the process of receiving the target key information sent by the audio/video sending end by the audio/video receiving end through the audio/video transmission channel may be as follows: receiving encryption key information sent by an audio and video sending end through an audio and video transmission channel, wherein the encryption key information comprises information obtained by encrypting target key information by the audio and video sending end based on an encryption algorithm and an encryption key, and the encryption algorithm and the encryption key are generated by the audio and video sending end and an audio and video receiving end in advance in an appointed manner; acquiring a decryption key and a decryption algorithm which are predetermined with an audio and video transmitting terminal; and decrypting the encrypted key information based on the decryption key and the decryption algorithm to obtain the target key information.

It can be understood that, the process of receiving the encryption key information sent by the audio/video sending end by the audio/video receiving end through the audio/video transmission channel may be as follows: receiving a parameter packet sent by an audio and video sending end through an audio and video transmission channel, wherein the parameter packet is formed by packaging encryption key information and a first check value, and the first check value is obtained by calculating the encryption key information by the audio and video sending end; calculating a second check value of the encryption key information; and judging whether the second check value is the same as the first check value or not, and if the second check value is the same as the first check value, acquiring the encryption key information.

It can be understood that the parameter packet in the present disclosure may include identification information of an audio/video receiving end that receives the target key information; correspondingly, the process of calculating the second check value of the encryption key information by the audio/video receiving end may be as follows: judging whether the identification information in the parameter packet is the identification information of the parameter packet; and if the identification information in the parameter packet is the identification information of the parameter packet, executing a step of calculating a second check value of the encryption key information.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a key information transmission device according to an exemplary embodiment.

The present disclosure relates to a key information transmission apparatus 400, which is applied to an audio/video transmitting end, and may include:

a first obtaining module 410, configured to obtain target key information to be transmitted;

the first transmission module 420 is configured to transmit the target key information to the audio/video receiving end through the audio/video transmission channel.

The key information transmission device related to the present disclosure is applied to an audio/video sending end, and the first transmission module may include:

the first obtaining submodule is used for obtaining an encryption key and an encryption algorithm which are predetermined with an audio and video receiving terminal;

the first encryption submodule is used for encrypting the target key information based on an encryption algorithm and an encryption key to obtain encryption key information;

and the first transmission submodule is used for transmitting the encryption key information to an audio and video receiving end through an audio and video transmission channel.

The key information transmission device related to the present disclosure is applied to an audio/video sending end, and the first transmission submodule may include:

the first calculation submodule is used for calculating a first check value of the encryption key information;

the first packaging submodule is used for packaging the encryption key information and the first check value into a parameter packet;

and the second transmission submodule is used for transmitting the parameter packet to an audio and video receiving end through the audio and video transmission channel.

The present disclosure relates to a key information transmission device, which is applied to an audio/video transmitting end, and a first encapsulation submodule may include:

the first acquisition unit is used for acquiring the identification information of the audio and video receiving end for receiving the target key information;

and the first packaging unit is used for packaging the identification information, the encryption key information and the first check value into a parameter packet.

The key information transmission device related to the present disclosure is applied to an audio/video receiving end, and may include:

and the first receiving module is used for receiving the target key information sent by the audio and video sending end through the audio and video transmission channel.

The present disclosure relates to a key information transmission device, which is applied to an audio/video receiving end, and a first receiving module may include:

the first receiving submodule is used for receiving encryption key information sent by the audio and video sending end through the audio and video transmission channel, the encryption key information comprises information obtained by encrypting target key information by the audio and video sending end based on an encryption algorithm and an encryption key, and the encryption algorithm and the encryption key are generated by the audio and video sending end and the audio and video receiving end in advance;

the second obtaining submodule is used for obtaining a decryption key and a decryption algorithm which are predetermined with the audio and video transmitting terminal;

and the first decryption submodule is used for decrypting the encrypted key information based on the decryption key and the decryption algorithm to obtain the target key information.

The present disclosure relates to a key information transmission device, which is applied to an audio/video receiving end, and a first receiving submodule may include:

the second receiving submodule is used for receiving a parameter packet sent by the audio and video sending end through the audio and video transmission channel, the parameter packet is formed by packaging encryption key information and a first check value, and the first check value is obtained by calculating the encryption key information by the audio and video sending end;

the second calculation submodule is used for calculating a second check value of the encryption key information;

and the first judgment submodule is used for judging whether the second check value is the same as the first check value or not, and acquiring the encryption key information if the second check value is the same as the first check value.

The key information transmission device is applied to an audio and video receiving end, and a parameter packet can comprise identification information of the audio and video receiving end for receiving target key information;

the second calculation submodule may include:

the first judging unit is used for judging whether the identification information in the parameter packet is the identification information of the first judging unit; and if the identification information in the parameter packet is the identification information of the parameter packet, prompting the second calculation submodule to execute the step of calculating the second check value of the encryption key information.

Fig. 5 is a block diagram illustrating an electronic device 500 in accordance with an example embodiment. As shown in fig. 5, the electronic device 500 may include: a processor 501 and a memory 502. The electronic device 500 may also include one or more of a multimedia component 503, an input/output (I/O) interface 504, and a communication component 505.

The processor 501 is configured to control the overall operation of the electronic device 500, so as to complete all or part of the steps in the key information transmission method. The memory 502 is used to store various types of data to support operation at the electronic device 500, such as instructions for any application or method operating on the electronic device 500 and application-related data, such as contact data, messaging, pictures, audio, video, and so forth. The Memory 502 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk. The multimedia component 503 may include a screen and an audio component. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 502 or transmitted through the communication component 505. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 504 provides an interface between the processor 501 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 505 is used for wired or wireless communication between the electronic device 500 and other devices. Wireless communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G, or 4G, or a combination of one or more of them, so that the corresponding communication component 905 may include: Wi-Fi module, bluetooth module, NFC module.

In an exemplary embodiment, the electronic Device 500 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the key information transmission method described above.

In another exemplary embodiment, there is also provided a computer-readable storage medium including program instructions, which when executed by a processor, implement the steps of the key information transmission method described above. For example, the computer readable storage medium may be the memory 502 described above that includes program instructions that are executable by the processor 501 of the electronic device 500 to perform the key information transmission method described above.

For a description of a relevant part in a key information transmission device, an electronic device, and a computer-readable storage medium provided in the embodiments of the present disclosure, please refer to the detailed description of the corresponding part in a key information transmission method provided in the embodiments of the present disclosure, which is not repeated herein. In addition, parts of the above technical solutions provided in the embodiments of the present disclosure that are consistent with the implementation principle of the corresponding technical solutions in the prior art are not described in detail, so as to avoid redundant description.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.