Secret communication method based on pilotless automobile and application

Abstract

The invention discloses a secret communication method based on a pilotless automobile, and the method comprises the steps: transmitting a control instruction and path planning information to network control equipment, and transmitting forward data to control center password equipment through the network control equipment; the control center password device selects a corresponding secret key according to the type of the forward data to encrypt the data and then sends the encrypted data to the base station, the base station forwards the data to the driverless car, and the driverless car password module decrypts the data to obtain plaintext data; the returned data is encrypted by the unmanned automobile password module and decrypted by the control center password device; key distribution data sent by the key distribution center to the unmanned automobile password module is packaged into a corresponding frame format through the network control device, encrypted through the control center password device and then transmitted to the unmanned automobile password module through a wireless channel. According to the method, encryption protection can be carried out on transmission data of the pilotless automobile, periodic automatic updating of a working key is realized, and the key synchronization problem in the key updating process is solved.

Description

Technical Field

[0001] The present application relates to the field of encrypted communication technology, and more specifically, to a confidential communication method based on an unmanned vehicle, a confidential communication device based on an unmanned vehicle, an electronic device, and a computer-readable storage medium. Background Art

[0002] With the rapid application and development of intelligent control technology in the field of unmanned driving, unmanned vehicles have gradually entered the real life of human beings. Unmanned vehicles use wireless communication technology. Due to their open communication channels, there are security attack risks such as information leakage, interception, tampering, and forgery during the communication process.

[0003] However, the existing driverless cars do not use encryption to protect the transmitted data or use pre-made keys to encrypt the information transmitted over the wireless channel, and do not realize the periodic automatic update of the working key, so the security needs to be improved. Therefore, in order to improve the security of the driverless car communication system, it is necessary to propose a method for encrypting the transmitted data and realizing the periodic automatic update of the working key and solving the key synchronization problem during the key update process. Summary of the invention

[0004] In response to at least one defect or improvement need in the prior art, the present invention provides a confidential communication method and application based on an unmanned vehicle, which aims to encrypt and protect data transmitted by the unmanned vehicle, realize periodic automatic updating of working keys, and solve the key synchronization problem during the key updating process.

[0005] To achieve the above-mentioned purpose, according to the first aspect of the present invention, a confidential communication method based on an unmanned vehicle is provided, comprising: a monitoring center sends control instructions and path planning information to a network control device, and the network control device sends forward data from the monitoring center to a cryptographic device of the control center; the cryptographic device of the control center selects a corresponding key according to the type of the forward data, encrypts the forward data, and then sends it to a base station, the base station forwards the forward data to the unmanned vehicle, and the unmanned vehicle cryptographic module decrypts the forward data to obtain plaintext data; the return data is encrypted by the unmanned vehicle cryptographic module and decrypted by the control center cryptographic device; the key distribution data from the key distribution center to the unmanned vehicle cryptographic module is encapsulated into a corresponding frame format by the network control device, and after being encrypted by the control center cryptographic device, it is transmitted to the unmanned vehicle cryptographic module via a wireless channel.

[0006] In one embodiment of the present invention, the driverless car has two states: before login authentication and after login authentication. The data transmitted before login authentication and after login authentication are encrypted and protected using different keys.

[0007] In one embodiment of the present invention, the unmanned vehicle password module before login authentication uses a pre-made key to communicate with the control center password device for encryption and decryption, and the unmanned vehicle password module after login authentication uses the key issued by the key distribution center to communicate with the control center password device for encryption and decryption.

[0008] In one embodiment of the present invention, 1 bit of data is used in the data frame to identify whether the unmanned vehicle password module is before or after login authentication. The login authentication identifier in the return data frame from the unmanned vehicle to the monitoring center is filled by the unmanned vehicle password module, and the login authentication identifier in the forward data frame from the monitoring center to the unmanned vehicle is filled by the control center password device.

[0009] In one embodiment of the present invention, the key replacement after login authentication is controlled by the control center cryptographic device, and the key version number is incremented by 1 each time. After the replacement time, the control center cryptographic device enables the new version of the key and sends a key application instruction to the key distribution center. After receiving the instruction, the key distribution center sends the current version of the key and the next version of the key to the control center cryptographic device and the unmanned vehicle cryptographic module.

[0010] In one embodiment of the present invention, 1 bit of data is used in the data frame to identify whether the key version number is an odd number or an even number. When the control center cryptographic device enables a new version of the key, it determines the parity of the key version number. If the key version number is an odd number, the key identifier is filled with 1; if the key version number is an even number, the key identifier is filled with 0.

[0011] In one embodiment of the present invention, when the key is replaced, the key identification number in the forward data frame changes. The unmanned vehicle cryptographic module selects the corresponding key according to the key identification to process the forward data, and fills the key identification of the return data frame to be consistent with the forward data. When the cryptographic device in the control center applies for the key, the key distribution center distributes the version key in use and the version key to be replaced and enabled to the cryptographic device.

[0012] According to the second aspect of the present invention, a confidential communication device based on an unmanned vehicle is also provided, which includes: a forward data sending module, which is used for the monitoring center to send control instructions and path planning information to the network control device, and the network control device sends the forward data from the monitoring center to the control center cryptographic device; a forward data encryption and decryption module, which is used for the control center cryptographic device to select a corresponding key according to the forward data type to encrypt the forward data and then send it to the base station, the base station forwards the forward data to the unmanned vehicle, and the unmanned vehicle cryptographic module decrypts the forward data to obtain plaintext data; a return data encryption and decryption module, which is used for the return data to be encrypted by the unmanned vehicle cryptographic module and decrypted by the control center cryptographic device; a key distribution module, which is used for the key distribution center to encapsulate the key distribution data to the unmanned vehicle cryptographic module into a corresponding frame format through the network control device, and after being encrypted by the control center cryptographic device, it is transmitted to the unmanned vehicle cryptographic module via a wireless channel.

[0013] On the other hand, an embodiment of the present invention further proposes an electronic device, comprising: a memory and one or more processors connected to the memory, the memory storing a computer program, and the processor being used to execute the computer program to implement the steps of the confidential communication method for an unmanned vehicle as described in any one of the above embodiments.

[0014] On the other hand, an embodiment of the present invention further proposes a computer-readable storage medium, which stores computer-executable instructions, and the computer-executable instructions are used to execute the confidential communication method based on an unmanned vehicle as described in any one of the above embodiments.

[0015] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0016] The present invention provides a confidential communication method for unmanned vehicles, in which data is transmitted between an unmanned vehicle control center and the unmanned vehicle through a wireless channel, data is exchanged and transferred through the unmanned vehicle control center, a control center cryptographic device and a key distribution center are deployed on the unmanned vehicle control center side, and an unmanned vehicle cryptographic module is deployed in the unmanned vehicle, thereby ensuring the security of data transmission in the wireless channel, the control center cryptographic device encrypts and protects information transmitted through the wireless channel, and the key distribution center performs key protection on the cryptographic device, thereby realizing periodic automatic updating of working keys and seamless key switching during the key updating process under the limited communication field overhead of the unmanned vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A flowchart of a secure communication method based on an unmanned vehicle provided in an embodiment of the present application;

[0019] Figure 2 A structural diagram of a secure communication system based on an unmanned vehicle provided in an embodiment of the present application;

[0020] Figure 3 A schematic diagram of the forward data and return data frame formats provided in an embodiment of the present application;

[0021] Figure 4 A schematic diagram of key distribution and period switching provided in an embodiment of the present application;

[0022] Figure 5 The unmanned vehicle login authentication flow chart provided in the embodiment of the present application;

[0023] Figure 6 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention;

[0024] Figure 7 A schematic diagram of the structure of a computer-readable storage medium provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0026] The terms "first", "second", "third", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0027] like Figure 1FIG. 1 is a flow chart of a secure communication method based on an unmanned vehicle provided by a first embodiment of the present invention. Figure 2 The figure shows a schematic diagram of the system architecture used in the method. The system includes: an unmanned vehicle control center, a base station and an unmanned vehicle. The unmanned vehicle control center includes a monitoring center, a network control device, a control center cryptographic device, and a key distribution center. An unmanned vehicle cryptographic module is deployed in the unmanned vehicle.

[0028] The method includes: in step S1, the monitoring center sends control instructions, path planning and other information to the network control device, and the network control device sends the forward data from the monitoring center to the control center cryptographic device. In step S2, the control center cryptographic device selects the corresponding key according to the forward data type, encrypts the forward data and sends it to the base station, the base station forwards the forward data to the unmanned vehicle, and the unmanned vehicle cryptographic module decrypts the forward data to obtain plaintext data. In step S3, the return data is encrypted by the unmanned vehicle cryptographic module and decrypted by the control center cryptographic device. In step S4, the key distribution data from the key distribution center to the unmanned vehicle cryptographic module is encapsulated into the corresponding frame format by the network control device, encrypted by the control center cryptographic device, and transmitted to the unmanned vehicle cryptographic module via a wireless channel.

[0029] Specifically, the key distribution data from the key distribution center to the control center cryptographic device is directly transmitted to the control center cryptographic device via the network cable. The data interaction between the key distribution center and the unmanned vehicle cryptographic module requires the use of a wireless channel. The key distribution data from the key distribution center to the unmanned vehicle cryptographic module is encapsulated into a corresponding frame format by the network control device and sent to the control center cryptographic device. The control center cryptographic device encrypts the data and sends it to the base station. The base station transmits the data to the unmanned vehicle through the wireless channel, and the unmanned vehicle cryptographic module decrypts the data.

[0030] Furthermore, the driverless car has two states: before login authentication and after login authentication. The data transmitted before login authentication and after login authentication are encrypted and protected by different keys. The password module of the driverless car before login authentication uses a pre-made key to encrypt and decrypt with the password device of the control center. The password module of the driverless car after login authentication uses the key issued by the key distribution center to encrypt and decrypt with the password device of the control center.

[0031] like Figure 3The figure shows the forward data and return data frame formats. The login authentication identifier in the frame format is 1-bit data. 0 is filled before the login authentication of the unmanned car, and 1 is filled after the login authentication of the unmanned car. The login authentication identifier in the return data frame (unmanned car → monitoring center) is filled by the unmanned car password module, and the login authentication identifier in the forward data frame (monitoring center → unmanned car) is filled by the control center password device. The key identifier in the data frame format is 1-bit data. When the key version is an odd number, the identifier is filled with 1, and when the key version is an even number, the identifier is filled with 0. The key identifier in the forward data frame is filled by the control center password device, and the key identifier in the return data frame follows the forward direction and is filled by the unmanned car password module.

[0032] Furthermore, the key replacement after login authentication is controlled by the control center cryptographic device. The key version number increases by 1 each time. When the replacement time arrives, the control center cryptographic device will enable the new version of the key and send a key application instruction to the key distribution center. After receiving the instruction, the key distribution center will send the current version of the key and the next version of the key to the control center cryptographic device and the unmanned vehicle cryptographic module.

[0033] like Figure 4 The figure shows the key distribution and cycle switching diagram. After the control center cryptographic device completes startup, it automatically applies for a key with version number V from the key distribution center. After receiving the application, the key distribution center distributes the key K(V) with version number V and the key K(V+1) with version number V+1 to the control center cryptographic device and the unmanned vehicle cryptographic module. After the control center cryptographic device obtains the key, if the login authentication flag of the return data frame of the unmanned vehicle is set to 1, the control center cryptographic device will also set the login authentication flag of the forward data frame sent to the unmanned vehicle to 1, and use K(V) to encrypt the forward data frame.

[0034] When the key replacement period (T) arrives, the control center cryptographic device first enables the key K(V+1) and fills in the key identifier. If V+1 is an even number, the key identifier is set to 0, and if the key identifier is an odd number, the key identifier is set to 1. The unmanned vehicle cryptographic module receives the forward data frame and selects to use the key K(V) or K(V+1) according to whether the key identifier is 0 or 1. The key identifier of the return data frame follows the forward one.

[0035] After the control center cryptographic device completes key activation, it applies to the key distribution center for a key with version number V+1. After receiving the application, the key distribution center distributes key K(V+1) with version number V+1 and key K(V+2) with version number V+2 to the control center cryptographic device and the unmanned vehicle cryptographic module. After the next key replacement cycle, the control center cryptographic device activates key K(V+2) and fills in the key identifier. The key identifier of the data frame returned by the unmanned vehicle cryptographic module follows the control center cryptographic device and uses key K(V+2). The control center cryptographic device completes key activation and applies to the key distribution center for a key with version number V+2. After receiving the application, the key distribution center distributes key K(V+2) with version number V+2 and key K(V+3) with version number V+3 to the control center cryptographic device and the unmanned vehicle cryptographic module.

[0036] The version number of the key applied for by the control center cryptographic device increases by 1 in each cycle. The control center cryptographic device and the unmanned vehicle cryptographic module will obtain the key to be enabled in the next cycle one cycle (T) in advance. In this way, under the condition of limited communication field overhead, it is ensured that the information exchange between the monitoring center and the unmanned vehicle will not be interrupted during the key switching, ensuring the stability and reliability of the key switching.

[0037] like Figure 5 The figure shows the unmanned car login authentication flow chart. After the unmanned car password module is powered on, it uses the pre-made key to communicate with the control center password device. After successfully decrypting the forward data frame, the unmanned car password module sends a login authentication application to the key distribution center. After receiving the login authentication application from the unmanned car password module, the key distribution center distributes the current version of the key Key_current and the next version of the key Key_next. After receiving the key, the unmanned car password module sets the return data frame login authentication flag to 1, and uses the key Key_current to encrypt the return data frame, and fills the key flag in the return data frame according to the parity of the version number of the key Key_current.

[0038] After receiving the return data frame, the control center password device obtains the login authentication flag as 1, then sets the login authentication flag in the forward data frame to 1, and uses the key Key_current to encrypt the forward data frame. The login authentication flag in the data frame ensures that when the password device switches from the pre-login authentication key (prefabricated key) to the post-login authentication key (key distributed by the key distribution center), data intercommunication will not be interrupted, ensuring the stability and reliability of key switching.

[0039] To summarize, the confidential communication method for unmanned vehicles provided by the present invention realizes data transmission between the unmanned vehicle control center and the unmanned vehicle through a wireless channel, and performs data exchange and transfer through the unmanned vehicle control center. By deploying a control center cryptographic device and a key distribution center on the unmanned vehicle control center side, and deploying an unmanned vehicle cryptographic module in the unmanned vehicle, the transmission security of data in the wireless channel is guaranteed. The control center cryptographic device encrypts and protects the information transmitted through the wireless channel, and the key distribution center performs key protection on the cryptographic device, thereby realizing periodic automatic update of the working key and seamless key switching during the key update process under the limited communication field overhead of the unmanned vehicle.

[0040] In addition, the second embodiment of the present invention proposes a confidential communication device based on an unmanned vehicle, for example, including: a forward data sending module, which is used for the monitoring center to send control instructions and path planning information to the network control device, and the network control device sends the forward data from the monitoring center to the control center cryptographic device. A forward data encryption and decryption module, which is used for the control center cryptographic device to select a corresponding key according to the forward data type to encrypt the forward data and send it to the base station, the base station forwards the forward data to the unmanned vehicle, and the unmanned vehicle cryptographic module decrypts the forward data to obtain plaintext data. A return data encryption and decryption module, which is used for the return data to be encrypted by the unmanned vehicle cryptographic module and decrypted by the control center cryptographic device. A key distribution module, which is used for the key distribution center to encapsulate the key distribution data to the unmanned vehicle cryptographic module into a corresponding frame format through the network control device, and after being encrypted by the control center cryptographic device, it is transmitted to the unmanned vehicle cryptographic module via a wireless channel.

[0041] The secure communication method based on an unmanned vehicle implemented by the secure communication device based on an unmanned vehicle disclosed in the second embodiment of the present invention is as described in the first embodiment above, so it will not be described in detail here. Optionally, each module in the second embodiment and the above-mentioned other operations or functions are respectively for implementing the method described in the first embodiment, and the beneficial effects of this embodiment are the same as those of the first embodiment above, and for the sake of brevity, they will not be repeated here.

[0042] like Figure 6 As shown, the third embodiment of the present invention further proposes an electronic device 30, for example, including: at least one processing unit 31, and at least one storage unit 32, wherein the storage unit 32 stores a computer program, and when the computer program is executed by the processing unit, the processing unit 31 executes the method as described in the first embodiment, and the beneficial effects of the electronic device 30 provided by this embodiment are the same as the beneficial effects of the confidential communication method based on the unmanned vehicle provided by the first embodiment.

[0043] like Figure 7As shown, the fourth embodiment of the present invention further provides a computer-readable storage medium 40 on which a computer program is stored. When the program is executed by a processor, the steps of the above method are implemented, and the beneficial effects of the computer-readable storage medium 40 provided by this embodiment are the same as the beneficial effects of the confidential communication method based on the unmanned vehicle provided by the first embodiment.

[0044] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0045] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0046] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some service interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0047] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0048] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0049] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application 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 memory, including a number of instructions to enable a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned memory includes: U disk, read-only memory (ROM), random access memory (RAM), mobile hard disk, disk or optical disk and other media that can store program code.

[0050] A person skilled in the art may understand that all or part of the steps in the various methods of the above embodiments may be completed by entering a program to instruct the relevant hardware. The program may be stored in a computer-readable memory, and the memory may include: a flash drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0051] The above is only an exemplary embodiment of the present disclosure, and the scope of the present disclosure cannot be limited thereto. That is, any equivalent changes and modifications made according to the teachings of the present disclosure are still within the scope of the present disclosure. After considering the specification and practicing the disclosure here, those skilled in the art will easily think of the implementation scheme of the present disclosure. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary technical means in the technical field not recorded in the present disclosure. The description and examples are regarded as exemplary only, and the scope and spirit of the present disclosure are defined by the claims.

[0052] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A confidential communication method based on an unmanned vehicle, characterized in that: include: The monitoring center sends control instructions and path planning information to the network control device, and the network control device sends forward data from the monitoring center to the control center cryptographic device; The control center cryptographic device selects the corresponding key according to the forward data type, encrypts the forward data, and then sends it to the base station. The base station forwards the forward data to the driverless car, and the driverless car cryptographic module decrypts the forward data to obtain plain text data. The returned data is encrypted by the unmanned vehicle password module and decrypted by the control center password device; The key distribution data from the key distribution center to the unmanned vehicle password module is encapsulated into a corresponding frame format by the network control device, encrypted by the control center password device, and transmitted to the unmanned vehicle password module via a wireless channel.

2. The secure communication method based on an unmanned vehicle according to claim 1, characterized in that: The driverless car has two states: before login authentication and after login authentication. The data transmitted before login authentication and after login authentication are encrypted and protected using different keys.

3. The secure communication method based on an unmanned vehicle according to claim 2, characterized in that: The unmanned vehicle password module before login authentication uses a pre-made key to communicate with the control center password device for encryption and decryption. The unmanned vehicle password module after login authentication uses a key issued by the key distribution center to communicate with the control center password device for encryption and decryption.

4. The secure communication method based on an unmanned vehicle according to claim 1, characterized in that: The data frame uses 1 bit of data to identify whether the unmanned car password module is before or after login authentication. The login authentication identifier in the return data frame from the unmanned car to the monitoring center is filled by the unmanned car password module, and the login authentication identifier in the forward data frame from the monitoring center to the unmanned car is filled by the control center password device.

5. The secure communication method based on an unmanned vehicle according to claim 4, characterized in that: The key replacement after login authentication is controlled by the control center cryptographic device. The key version number increases by 1 each time. After the replacement time, the control center cryptographic device activates the new version of the key and sends a key application instruction to the key distribution center. After receiving the instruction, the key distribution center sends the current version of the key and the next version of the key to the control center cryptographic device and the unmanned vehicle cryptographic module.

6. The secure communication method based on an unmanned vehicle according to claim 4, characterized in that: The data frame uses 1 bit of data to identify whether the key version number is an odd number or an even number. When the control center cryptographic device enables a new version of the key, it determines the parity of the key version number. If the key version number is an odd number, the key identifier is filled with 1; if the key version number is an even number, the key identifier is filled with 0.

7. The secure communication method based on an unmanned vehicle according to claim 4, characterized in that: When the key is replaced, the key identification number in the forward data frame changes. The unmanned vehicle password module selects the corresponding key according to the key identification to process the forward data, and fills the key identification of the return data frame to be consistent with the forward data. When the control center password device applies for the key, the key distribution center distributes the version key in use and the version key to be replaced and enabled to the password device.

8. A secure communication device based on an unmanned vehicle, characterized in that: include: The forward data sending module is used for the monitoring center to send control instructions and path planning information to the network control device, and the network control device sends the forward data from the monitoring center to the control center password device; The forward data encryption and decryption module is used for the control center cryptographic device to select the corresponding key according to the forward data type to encrypt the forward data and send it to the base station. The base station forwards the forward data to the driverless car, and the driverless car cryptographic module decrypts the forward data to obtain plaintext data; The return data encryption and decryption module is used to encrypt the return data by the unmanned vehicle password module and decrypt it by the control center password device; The key distribution module is used for the key distribution center to send key distribution data to the unmanned vehicle password module. The data is encapsulated into a corresponding frame format by the network control device, encrypted by the control center password device, and then transmitted to the unmanned vehicle password module via a wireless channel.

9. An electronic device, characterized in that: include: A memory and one or more processors connected to the memory, the memory storing a computer program, and the processor being used to execute the computer program to implement the secure communication method for an unmanned vehicle as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to execute the confidential communication method for an unmanned vehicle as described in any one of claims 1-7.

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