WO2021109998A1

WO2021109998A1 - Media content transmission method and apparatus, and storage medium

Info

Publication number: WO2021109998A1
Application number: PCT/CN2020/133132
Authority: WO
Inventors: 卢正宇
Original assignee: 中兴通讯股份有限公司
Priority date: 2019-12-05
Filing date: 2020-12-01
Publication date: 2021-06-10
Also published as: CN112929593A

Abstract

Embodiments of the present disclosure relate to the technical field of communications. Disclosed is a media content transmission method, comprising: generating a server public key-private key pair, the server public key-private key pair comprising a server public key and a server private key; sending the server public key to a terminal, and receiving a terminal public key generated by the terminal; encrypting a media address using the terminal public key to obtain an encrypted media address, and sending the encrypted media address to the terminal; obtaining encrypted request signaling sent from the terminal, the encrypted request signaling being media content request signaling encrypted by the terminal using the server public key; decrypting the encrypted request signaling using the server private key, and pushing to the terminal the media content requested by the encrypted request signaling after the decryption is completed. The present disclosure also provides a media content transmission apparatus and a storage medium. The media content transmission method and apparatus as well as the storage medium provided by the present disclosure can improve the security of media content network interaction.

Description

Media content transmission method, device and storage medium

Technical field

The embodiments of the present disclosure relate to the field of communication technologies, and in particular, to a method for transmitting media content.

Background technique

Video conference usually refers to a real-time, two-way or multi-party visual communication conference based on terminal equipment and a conference multipoint control unit MCU (Multipoint Control Unit). With the rapid development of live video technology, video conferencing has gradually realized technical solutions such as large-capacity user access, high bandwidth occupancy, and one-key conference. At present, video conferencing is widely used in remote meetings, training and teaching.

However, the current video conferencing solutions in the industry have security risks. Nowadays, the commonly used scheme is that the server sends the URL address to the terminal, and the terminal requests media content from the server through the URL address. The illegal terminal can obtain the URL address of the media content through network packet interception or other means, and make an illegal media content request to the server through the URL address. The existing solutions cannot meet the security requirements of the video conference.

Summary of the invention

The purpose of the embodiments of the present disclosure is to provide a media content transmission method, so that illegal terminals cannot learn the address of the media content, nor can they make illegal media content requests to the server, so as to meet the security requirements of media content network interaction.

In order to solve the above technical problems, the embodiments of the present disclosure provide a media content transmission method, including: generating a server public key private key pair, wherein the server public key private key pair includes a server public key and a server public key. Private key; send the server public key to the terminal, and receive the terminal public key generated by the terminal; use the terminal public key to encrypt the media address to obtain the encrypted media address, and send the encrypted media address to all The terminal; obtain the encryption request signaling sent by the terminal, where the encryption request signaling is the media content request signaling encrypted by the terminal using the server public key; the server private key is used to decrypt the The encryption request signaling, and push the media content requested by the encryption request signaling to the terminal after the decryption is completed.

Embodiments of the present disclosure also provide a method for transmitting media content, including: generating a terminal public key private key pair, wherein the terminal public key private key pair includes a terminal public key and a terminal private key; and sending the terminal public key and private key to the server. Terminal public key and receiving the server public key generated by the server; obtaining the encrypted media address sent by the server, where the encrypted media address is the media address encrypted by the server using the terminal public key; The terminal private key decrypts the encrypted media address to generate media content request signaling for requesting media content from the media address; encrypts the media content request signaling by using the server public key to obtain an encryption request message Command, and send the encryption request signaling to the server; receive the media content pushed by the server.

Embodiments of the present disclosure also provide a media content delivery device, including: at least one processor; and, a memory communicatively connected with the at least one processor; wherein the memory stores the memory that can be processed by the at least one processor; The instructions are executed by the at least one processor, so that the at least one processor can execute the aforementioned media content delivery method.

The embodiment of the present disclosure also provides a media content transmission method, including: the server generates a server public key private key pair, and the terminal generates a terminal public key private key pair, wherein the server public key private key pair includes The server public key and the server private key, the terminal public key-private key pair includes the terminal public key and the terminal private key; the server sends the server public key to the terminal, and the terminal sends the terminal public key to the terminal The server; the server uses the terminal public key to encrypt the media address to obtain the encrypted media address, and sends the encrypted media address to the terminal; the terminal obtains the encrypted media address sent by the server and uses the terminal private Key to decrypt the encrypted media address, generate media content request signaling for requesting media content from the media address, encrypt the media content request signaling by using the server public key to obtain the encryption request signaling, and The encryption request signaling is sent to the server; the server obtains the encryption request signaling sent by the terminal, decrypts the encryption request signaling using the server private key, and encrypts the encryption request signaling after the decryption is completed The media content requested by the request signaling is pushed to the terminal; the terminal receives the media content pushed by the server.

The embodiments of the present disclosure also provide a computer-readable storage medium that stores a computer program, and when the computer program is executed by a processor, the media content transmission method described above is implemented.

Compared with the prior art, the embodiment of the present disclosure uses the terminal public key to encrypt the media address, so that the terminal needs to use the terminal private key for decryption to obtain the media address, thereby ensuring the transfer process of the media address from the server to the terminal The media address will not be illegally intercepted; the terminal uses the server public key to encrypt the request signaling, so that the server uses the server private key to decrypt the request signaling to ensure that the request signaling is transmitted from the terminal to the server Not to be monitored; so that illegal terminals can neither learn the address of the media content, nor can they make illegal media content requests to the server, so as to meet the security requirements of media content network interaction.

Description of the drawings

One or more embodiments are exemplified by the pictures in the corresponding drawings, and these exemplified descriptions do not constitute a limitation on the embodiments.

Fig. 1 is a flowchart of a media content delivery method according to a first embodiment of the present disclosure;

FIG. 2 is a schematic diagram of the process of the server sending the server public key to the terminal according to the first embodiment of the present disclosure;

FIG. 3 is a schematic diagram of the process of receiving the public key of the terminal by the server according to the first embodiment of the present disclosure;

4 is a schematic diagram of the process of sending a media address from a server to a terminal according to the first embodiment of the present disclosure;

FIG. 5 is a schematic diagram of the process of decrypting the encrypted request signaling by the server according to the first embodiment of the present disclosure;

Fig. 6 is a flowchart of a media content delivery method according to a second embodiment of the present disclosure;

FIG. 7 is a structural block diagram of a media content delivery apparatus according to a third embodiment of the present disclosure;

FIG. 8 is a flowchart of a media content delivery method according to a fourth embodiment of the present disclosure;

FIG. 9 is a schematic diagram of a process of sending a terminal public key to a server by a terminal according to a fourth embodiment of the present disclosure;

FIG. 10 is a schematic diagram of a process of decrypting an encrypted media address by a terminal according to a fourth embodiment of the present disclosure;

FIG. 11 is a schematic flowchart of a request signaling sent by a terminal according to a fourth embodiment of the present disclosure;

FIG. 12 is a flowchart of a media content delivery method according to a fifth embodiment of the present disclosure;

FIG. 13 is a structural block diagram of a media content transmission device according to a sixth embodiment of the present disclosure;

FIG. 14 is a flowchart of a media content delivery method according to a seventh embodiment of the present disclosure;

Fig. 15 is a network structure diagram of a video live broadcast system according to a seventh embodiment of the present disclosure.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the various embodiments of the present disclosure will be described in detail below with reference to the drawings. However, a person of ordinary skill in the art can understand that in each embodiment of the present disclosure, many technical details are proposed for the reader to better understand the present disclosure. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solution claimed by the present disclosure can be realized. The following divisions of the various embodiments are for convenience of description, and should not constitute any limitation on the specific implementation of the present disclosure, and the various embodiments may be combined with each other without contradiction.

The first embodiment of the present disclosure relates to a media content transmission method, including: generating a server public key private key pair, wherein the server public key private key pair includes the server public key and the server private key; sending to the terminal The server public key and receive the terminal public key generated by the terminal; use the terminal public key to encrypt the media address to obtain the encrypted media address, and send the encrypted media address to the terminal; obtain the The encryption request signaling sent by the terminal, where the encryption request signaling is media content request signaling encrypted by the terminal using the server public key; the encryption request signaling is decrypted using the server private key, And after the decryption is completed, the media content requested by the encryption request signaling is pushed to the terminal.

The following specifically describes the implementation details of a media content transmission method of this embodiment. The following content is only provided for ease of understanding and is not necessary for implementing this solution.

The media content delivery method in this embodiment is applied to the server. As shown in Figure 1, the method specifically includes the following steps:

Step 101: Generate a server-side public key and private key pair.

Specifically, in this step, the server generates a server public key private key pair. The public key private key pair is a key pair (that is, a public key and a private key) obtained through an algorithm. The public is called the public key; the other reserved is called the private key. The key pair obtained by this algorithm can be guaranteed to be unique in the world. When using this key pair, if a piece of data is encrypted with a public key, to obtain this piece of data, it must be decrypted with a private key. In this step, the server generates a server public key private key pair through a preset algorithm, and the public key private key pair includes the server public key and the server private key.

Step 102: Send the server public key to the terminal, and receive the terminal public key.

Specifically, the received terminal public key is generated by the terminal, and the server uses the terminal public key to encrypt the data of the sending terminal, ensuring that only the terminal can obtain the data by decrypting with the corresponding terminal private key.

In this step, the process of the server sending the server public key to the terminal is shown in Figure 2. The server and the terminal use TR069 (Technical Report-069) communication protocol to communicate. After the server generates the server public key, it sends the server public key to the terminal through a TR069 message. After the terminal successfully receives the server public key, it returns the successful reception through the TR069 message.

In this step, the server receives the registration information of the terminal, where the registration information carries the terminal public key; verifies whether the registration information is legal, and if so, records the terminal public key and feeds back the registration success information to the terminal. As shown in Figure 3. The server and the terminal establish communication with the SIP (Session Initiation Protocol). The terminal encapsulates the terminal public key in the SIP registration message sent to the server. After receiving the SIP registration message carrying the terminal public key, the server verifies whether the SIP registration message is legal. If it is, save the SIP registration message. The public key of the terminal and feedback the successful registration message to the terminal.

Step 103: Use the terminal public key to encrypt the media address, and send the encrypted media address to the terminal.

In this step, the transmitted media content is the live media of the video conference, and the server encrypts the media address and sends the media address to the terminal as shown in Figure 4. In this embodiment, the server includes a live broadcast platform and a service platform. The live broadcast platform sends the media address to the service platform. The service then uses the terminal public key to encrypt the media address and sends the encrypted media address to the terminal.

Step 104: Obtain the encryption request signaling sent by the terminal.

In an actual application scenario, the encryption request signaling is obtained by the terminal encrypting the request signaling by using the server public key. The media content requested by the request signaling is the media content requested by the encrypted media address sent by the server to the terminal in step 103.

Step 105: Use the private key of the server to decrypt the encryption request signaling, and push the media content requested by the encryption request signaling to the terminal after the decryption is completed.

Specifically, the received encryption request signaling is encrypted by the server public key, and the server uses the server private key to decrypt the request signaling. As shown in Figure 5, the server’s live broadcast platform receives the encryption After the request signaling, the server private key is used to decrypt the request signaling, and the media content is sent to the terminal after the decryption is successful. In this step, the transmitted media content is the live content of the video conference.

Compared with the prior art, the server uses the terminal public key to encrypt the media address, so that the terminal needs to use the terminal private key for decryption to obtain the media address, thereby ensuring that the media address is transmitted from the server to the terminal. The media address will not be illegally intercepted; the terminal uses the server public key to encrypt the request signaling, so that the server uses the server private key to decrypt the request signaling to ensure that the request signaling is not transmitted from the terminal to the server. Being monitored; so that illegal terminals cannot learn the address of the media content, nor can they make illegal media content requests to the server, so as to meet the security requirements of media content network interaction.

The second embodiment of the present disclosure relates to a media content transmission method. The second embodiment is roughly the same as the first embodiment, except that, before generating the server public key and private key pair, the method further includes: The terminal performs key agreement.

A media content transmission method in this embodiment is shown in FIG. 6. It includes the following steps:

Step 201: Perform key negotiation with the terminal.

Specifically, the method provided in this embodiment is suitable for terminals that support key agreement through signaling. In this step, the server and the terminal conduct key agreement through signaling.

Step 202: Generate a server public key and private key pair.

Step 203: Send the server public key to the terminal, and receive the terminal public key.

Step 204: Use the terminal public key to encrypt the media address, and send the encrypted media address to the terminal.

Step 205: Obtain the encryption request signaling sent by the terminal.

Step 206: Use the server private key to decrypt the encryption request signaling, and push the media content requested by the encryption request signaling to the terminal after the decryption is completed.

Steps 202 to 206 are substantially the same as steps 101 to 105 in the first embodiment, respectively, and in order to avoid repetition, they will not be repeated here.

In this embodiment, compared with the first embodiment, the server performs key agreement with the terminal before generating the public key key pair, and establishes the session key together. Both the server and the terminal affect the result, and there is no need for any Trusted third party.

The third embodiment of the present disclosure relates to a media content transmission device. As shown in FIG. 7, it includes at least one processor 301; and a memory 302 communicatively connected with at least one processor 301; An instruction executed by one processor 301 is executed by at least one processor 301, so that at least one processor 301 can execute the media content transmission method in the first embodiment or the second embodiment.

The memory 302 and the processor 301 are connected in a bus manner, and the bus may include any number of interconnected buses and bridges, and the bus connects one or more various circuits of the processor 301 and the memory 302 together. The bus can also connect various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all well-known in the art, and therefore, no further description will be given herein. The bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices on the transmission medium. The data processed by the processor 301 is transmitted on the wireless medium through the antenna, and further, the antenna also receives the data and transmits the data to the processor 301.

The processor 301 is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. The memory 302 may be configured to store data used by the processor 301 when performing operations.

The fourth embodiment of the present disclosure relates to yet another media content transmission method, including: generating a terminal public key private key pair, wherein the terminal public key private key pair includes the terminal public key and the terminal private key; The terminal public key and receiving the server public key generated by the server; obtaining an encrypted media address sent by the server, where the encrypted media address is a media address encrypted by the server using the terminal public key; Use the terminal private key to decrypt the encrypted media address to generate media content request signaling for requesting media content from the media address; use the server public key to encrypt the media content request signaling to obtain an encryption request And send the encryption request signaling to the server; receive the media content pushed by the server.

Specifically, the media content transmission method in this embodiment is applied to a terminal device. As shown in FIG. 8, the method specifically includes the following steps:

Step 401: Generate a terminal public key and private key pair.

Step 402: Send the terminal public key to the server, and receive the server public key.

In this step, the process of the terminal sending the terminal public key to the server is shown in Figure 9. The terminal and the server establish communication through the SIP protocol. The terminal includes a key processing module and a protocol processing module. The key processing module generates a terminal public key, and then sends the terminal public key to the protocol processing module. The protocol processing module encapsulates the terminal public key in a SIP registration message and carries the terminal The SIP registration message of the public key is sent to the server, and the server receives the SIP registration message and extracts the terminal public key in the message, and then feeds back a message that the terminal is registered successfully.

Step 403: Obtain the encrypted media address sent by the server.

In an actual application scenario, the encrypted media address is obtained by encrypting the media address by the server using the terminal public key.

Step 404: Decrypt the encrypted media address by using the private key of the terminal, and generate a request signaling for the media content of the media address.

In this step, the terminal uses the terminal private key to decrypt the encrypted media address as shown in Figure 10. The key processing module of the terminal uses the private key of the terminal to decrypt the media address encrypted by the public key of the terminal, and sends the decrypted media address to the protocol processing module, and the protocol processing module generates a media content request message according to the media address. make.

Step 405: Use the server public key to encrypt the media content request signaling, and send the encrypted request signaling to the server.

In this step, the process in which the terminal uses the server public key to encrypt the media content request signaling is shown in Figure 11. The key processing module of the terminal encrypts the media request signaling by using the server public key, and then sends the encrypted media request signaling to the protocol processing module, and the protocol processing module sends the encrypted media request signaling to the protocol processing module. Media address.

Step 406: Receive media content pushed by the server.

The fifth embodiment of the present disclosure relates to a media content transmission method. The fifth embodiment is substantially the same as the fourth embodiment, except that, before generating a terminal public key private key pair, it also includes: The end performs key agreement.

A media content transmission method in this embodiment is shown in FIG. 12. It includes the following steps:

Step 501: Perform key negotiation with the server.

Step 502: Generate a terminal public key and private key pair.

Step 503: Send the terminal public key to the server, and receive the server public key.

Step 504: Obtain the encrypted media address sent by the server.

Step 505: Use the private key of the terminal to decrypt the encrypted media address, and generate a request signaling for the media content of the media address.

Step 506: Use the server public key to encrypt the media content request signaling, and send the encrypted request signaling to the server.

Step 507: Receive media content pushed by the server.

Steps 502 to 507 are substantially the same as steps 401 to 406 in the fourth embodiment, respectively. To avoid repetition, they will not be repeated here.

Compared with the fourth embodiment, the terminal conducts key agreement with the terminal before generating the public key key pair, and establishes the session key together. Both the server and the terminal affect the result, and there is no need for any data. Third party of the letter.

The sixth embodiment of the present disclosure relates to a media content transmission device. As shown in FIG. 13, it includes at least one processor 601; and, a memory 602 communicatively connected with at least one processor 601; An instruction executed by one processor 601 is executed by at least one processor 601, so that the at least one processor 601 can execute the media content transmission method in the fourth embodiment or the fifth embodiment.

The memory 602 and the processor 601 are connected in a bus manner. The bus may include any number of interconnected buses and bridges, and the bus connects one or more various circuits of the processor 601 and the memory 602 together. The bus can also connect various other circuits such as peripheral devices, voltage regulators, and power management circuits, etc., which are all known in the art, so they will not be further described in this article. The bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices on the transmission medium. The data processed by the processor 601 is transmitted on the wireless medium through the antenna, and further, the antenna also receives the data and transmits the data to the processor 601.

The processor 601 is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. The memory 602 may be configured to store data used by the processor 601 when performing operations.

The seventh embodiment of the present disclosure relates to a media content transmission method, including: the server generates a server public key private key pair, and the terminal generates a terminal public key private key pair, wherein the server public key private key pair includes the service The terminal public key and the server private key, the terminal public key-private key pair includes the terminal public key and the terminal private key; the server sends the server public key to the terminal, and the terminal sends the terminal public key to the terminal Server; the server uses the terminal public key to encrypt the media address to obtain the encrypted media address, and sends the encrypted media address to the terminal; the terminal obtains the encrypted media address sent by the server and uses the terminal private key Decrypt the encrypted media address, generate media content request signaling for requesting media content from the media address, encrypt the media content request signaling by using the server public key to obtain the encryption request signaling, and combine all The encryption request signaling is sent to the server; the server obtains the encryption request signaling sent by the terminal, uses the server private key to decrypt the encryption request signaling, and sends the encryption request after the decryption is completed The media content requested by the signaling is pushed to the terminal; the terminal receives the media content pushed by the server.

The media content transmission method in this embodiment is applied to a video conference system including a server and a terminal. As shown in FIG. 14, the method specifically includes the following steps:

Step 701: The server generates a server public key private key pair, and the terminal generates a terminal public key private key pair.

Specifically, the server public key and private key pair includes the server public key and the server private key, and the terminal public key and private key pair includes the terminal public key and the terminal private key.

Step 702: The server sends the server public key to the terminal, and the terminal sends the terminal public key to the server.

Step 703: The server encrypts the media address using the terminal public key, and sends the encrypted media address to the terminal.

Step 704: The terminal obtains the encrypted media address, and decrypts the media address by using the private key of the terminal.

Step 705: The terminal generates the request signaling for the media content of the media address, encrypts the request signaling with the server public key, and sends it to the server.

Step 706: The server obtains the encrypted request signaling, decrypts the request signaling using the server private key, and then pushes the media content to the terminal.

Step 707: The terminal receives the media content pushed by the server.

Step 704 and step 706 are roughly the same as step 103 and step 105 in the first embodiment, respectively. Step 704, step 705, and step 707 are roughly the same as step 404, step 405, and step 406 in the fourth embodiment, respectively. To avoid repetition, I will not repeat them one by one here.

It is worth mentioning that the server generates the server public key and private key pair. Before the terminal generates the terminal public key and private key pair, it may also include: the server and the terminal perform key negotiation. For terminals that support the negotiation of secret keys through signaling, the server and terminal conduct key negotiation with the terminal before generating a public key key pair to jointly establish a session key. Both the server and the terminal affect the result, and there is no need Any trusted third party.

In this step, the media content transmitted in this embodiment is the live content of the video conference. The server and multiple terminals constitute a video conference system. The network structure of the system is shown in FIG. 15. The server includes two modules, a live broadcast platform and a service platform. One server establishes communication with multiple terminals, and each terminal transmits live media content to the server through the above-mentioned embodiment.

The eighth embodiment of the present disclosure relates to a computer-readable storage medium storing a computer program. When the computer program is executed by the processor, any one of the foregoing media content transmission method embodiments is implemented.

That is, those skilled in the art can understand that all or part of the steps in the method of the foregoing embodiments can be implemented by instructing relevant hardware through a program. The program is stored in a storage medium and includes several instructions to enable a device ( It may be a single-chip microcomputer, a chip, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present disclosure. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disks or optical disks and other media that can store program codes. .

A person of ordinary skill in the art can understand that the above-mentioned embodiments are specific examples for realizing the present disclosure, and in practical applications, various changes can be made to them in form and details without departing from the spirit and spirit of the present disclosure. range.

Claims

A media content transmission method, including:

Generating a server public key private key pair, wherein the server public key private key pair includes a server public key and a server private key;

Sending the server public key to the terminal, and receiving the terminal public key generated by the terminal;

Encrypt the media address by using the terminal public key to obtain an encrypted media address, and send the encrypted media address to the terminal;

Acquiring the encryption request signaling sent by the terminal, where the encryption request signaling is media content request signaling encrypted by the terminal using the server public key;

The server private key is used to decrypt the encryption request signaling, and after the decryption is completed, the media content requested by the encryption request signaling is pushed to the terminal.
The media content delivery method according to claim 1, wherein before said generating the server public key private key pair, the method further comprises: conducting key agreement with the terminal.
The media content delivery method according to claim 1, wherein the receiving the terminal public key generated by the terminal specifically includes:

Receiving registration information of the terminal, where the registration information carries the terminal public key;

In the case that the registration information is legal, the terminal public key is recorded and the registration information is fed back to the terminal.
A media content providing device includes:

At least one processor; and,

A memory communicatively connected with the at least one processor; wherein,

The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can execute any one of claims 1 to 3 Media content delivery method.
A media content transmission method, including:

Generating a terminal public key and private key pair, where the terminal public key and private key pair includes a terminal public key and a terminal private key;

Sending the terminal public key to the server and receiving the server public key generated by the server;

Acquiring an encrypted media address sent by a server, where the encrypted media address is a media address encrypted by the server using the terminal public key;

Using the terminal private key to decrypt the encrypted media address, and generate media content request signaling for requesting media content from the media address;

Encrypt the media content request signaling by using the server public key to obtain encryption request signaling, and send the encryption request signaling to the server;

Receiving the media content pushed by the server.
The media content delivery method according to claim 5, wherein before said generating a terminal public key private key pair, the method further comprises: conducting key agreement with the server.
The media content delivery method according to claim 5, wherein the sending the terminal public key to the server specifically includes: sending registration information to the server, wherein the registration information carries the terminal public key.
A device for acquiring media content includes:

At least one processor; and,

A memory communicatively connected with the at least one processor; wherein,

The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can execute any one of claims 5 to 7 Media content delivery method.
A computer-readable storage medium that stores a computer program that, when executed by a processor, implements the media content transmission method according to any one of claims 1 to 3, or any one of claims 5 to 7 The described media content transmission method.
A media content transmission method, including:

The server generates a server public key private key pair, and the terminal generates a terminal public key private key pair, wherein the server public key private key pair includes the server public key and the server private key, and the terminal public key private key pair Including terminal public key and terminal private key;

The server sends the server public key to the terminal, and the terminal sends the terminal public key to the server;

The server encrypts the media address by using the terminal public key to obtain the encrypted media address, and sends the encrypted media address to the terminal;

The terminal obtains the encrypted media address sent by the server, uses the terminal private key to decrypt the encrypted media address, generates media content request signaling for requesting media content from the media address, and uses the server public key to encrypt the encrypted media address. The media content request signaling, obtain the encryption request signaling, and send the encryption request signaling to the server;

The server obtains the encryption request signaling sent by the terminal, decrypts the encryption request signaling using the server private key, and pushes the media content requested by the encryption request signaling to the terminal after the decryption is completed ；

The terminal receives the media content pushed by the server.
The media content delivery method according to claim 10, wherein before the server generates the server public key private key pair and the terminal generates the terminal public key private key pair, the method further comprises:

The server and the terminal negotiate a key.