CN112511983A - Privacy protection system and protection method based on position of Internet of vehicles - Google Patents
Privacy protection system and protection method based on position of Internet of vehicles Download PDFInfo
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- CN112511983A CN112511983A CN202011325824.8A CN202011325824A CN112511983A CN 112511983 A CN112511983 A CN 112511983A CN 202011325824 A CN202011325824 A CN 202011325824A CN 112511983 A CN112511983 A CN 112511983A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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Abstract
The invention belongs to the technical field of privacy protection, and discloses a privacy protection system and a protection method based on a position of a vehicle networking, wherein the privacy protection system based on the position of the vehicle networking comprises: the system comprises a GPS positioning module, a position information updating module, an information encryption module, a central control module, an information transmission module, a security defense module, a user verification module, an information decryption module, a display module, an information backup module, a source information erasing module and an early warning module. The vehicle position information is encrypted and then transmitted and safety defense is carried out in the transmission process, so that the safety of data transmission can be ensured, and the leakage of the vehicle position information is reduced; when the user position information is acquired, the user position information can be acquired only by user identity authentication and decryption, so that the convenience degree is higher; if the verification information is wrong, current information is erased, information leakage is reduced, and the problem of information loss caused by malicious intrusion is solved.
Description
Technical Field
The invention belongs to the technical field of privacy protection, and particularly relates to a privacy protection system and a privacy protection method based on a vehicle networking location.
Background
At present: with the continuous development of mobile communication technology, especially with the popularization and application of 4G and 5G technologies, the current mobile communication and IT technologies will be gradually applied to the automobile industry. The internet of vehicles is regarded as an important link for building smart cities as the mainstream development of the current automotive electronics and is gradually paid attention by researchers. However, as the vehicle is connected to the internet, problems such as privacy disclosure and illegal access control will also arise, and the user privacy security problem is particularly significant. In a vehicle networking environment, according to the provision of Dedicated Short Range Communications (DSRC), a vehicle broadcasts a safety message to surrounding Vehicles (Vehicles) and Roadside devices (RSUs) every 300ms, where the message includes information such as a vehicle's verifiable identity, a current vehicle location, and a current vehicle speed. Vehicles in the road network can prejudge road conditions according to the information, and traffic accidents such as collision, scraping and the like are avoided. However, the security information may also be acquired by an attacker who has hacked. In this way, the attacker can obtain the driving states of all vehicles in the road network, and can analyze important privacy such as behavior habits and driving targets of the vehicle owner from the information. Even lawbreakers may utilize the security message to implement kidnapping, theft, etc. Therefore, the vehicle position privacy is protected, the situation that an attacker continuously monitors the vehicle is avoided, and the method has important significance for the safety of the vehicle owner and the popularization of the Internet of vehicles. However, the existing car networking location privacy protection system has poor effectiveness in protecting location information, and is easy to cause leakage risk.
Through the above analysis, the problems and defects of the prior art are as follows: the existing car networking position privacy protection system has poor validity of protecting position information and is easy to cause leakage risk.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a privacy protection system and a protection method based on the position of the Internet of vehicles.
The invention is realized in this way, a privacy protection system based on location of car networking, the privacy protection system based on location of car networking includes:
the system comprises a GPS positioning module, a position information updating module, an information encryption module, a central control module, an information transmission module, a security defense module, a user verification module, an information decryption module, a display module, an information backup module, a source information erasing module and an early warning module;
the GPS positioning module is connected with the central control module and is used for acquiring the position information of the vehicle through a GPS positioner;
the position information updating module is connected with the central control module and is used for updating the vehicle position information in real time through a position information updating program;
the information encryption module is connected with the central control module and is used for encrypting the vehicle position information through an information encryption program;
the central control module is connected with the GPS positioning module, the position information updating module, the information encryption module, the information transmission module, the security defense module, the user verification module, the information decryption module, the display module, the information backup module, the source information erasing module and the early warning module and is used for controlling each module to normally operate through the main control computer;
the information transmission module is connected with the central control module and is used for transmitting the encrypted information through an information transmission program;
the safety defense module is connected with the central control module and is used for carrying out safety defense in information transmission through a safety defense program;
the user authentication module is connected with the central control module and used for authenticating the user information through a user authentication program;
the information decryption module is connected with the central control module and used for decrypting the encrypted information after the verification is passed through the information decryption program;
the display module is connected with the central control module and is used for displaying the verification information and the decryption information through the display;
the information backup module is connected with the central control module and is used for carrying out information backup when the verification fails through an information backup program;
the source information erasing module is connected with the central control module and is used for erasing the original encrypted information through a source information erasing program;
and the early warning module is connected with the central control module and is used for early warning when the used early warning program fails to pass the verification.
The invention also aims to provide a vehicle networking based location privacy protection method applying the vehicle networking based location privacy protection system, and the vehicle networking based location privacy protection method comprises the following steps:
acquiring the position information of a vehicle by a GPS positioning module through a GPS positioner; updating the vehicle position information by using a position information updating program through a position information updating module to obtain the real-time position information of the vehicle;
secondly, encrypting the vehicle position information by using an information encryption program through an information encryption module to obtain the encrypted vehicle position information; the central control module controls each module to normally operate by using the main control machine;
thirdly, the encrypted vehicle position information is transmitted by using an information transmission program through an information transmission module; safety defense in vehicle position information transmission is carried out by utilizing a safety defense program through a safety defense module;
step four, the user information is verified by the user verification module through a user verification program; the information decryption module decrypts the encrypted information by using the information decryption program after the user information passes the verification; the display module is used for displaying the verification information and the decryption information by using the display;
step five, information backup is carried out by the information backup module by utilizing an information backup program when the verification fails; erasing original encrypted information by using a source information erasing program through a source information erasing module, and reserving backup information;
and sixthly, early warning is carried out by the early warning module by utilizing an early warning program when the verification fails.
Further, in the first step, the updating the vehicle position information by the position information updating module using the position information updating program includes:
(1) receiving first vehicle position information acquired by a GPS (global positioning system) locator;
(2) after a time interval, the GPS locator obtains the second vehicle position information
(3) Comparing the first vehicle position information and the second vehicle position information of the vehicle, and judging whether the position information is changed;
(4) when the position information is changed, sending a position change request to the terminal through the physical layer consistent with the control physical layer, and acquiring corresponding position change operation performed by a user after receiving the position change request;
(5) and updating the position of the corresponding information point of the terminal in the control physical layer according to the new physical position of the terminal included in the position change operation.
Further, the updating of the vehicle position information by the position information updating module using the position information updating program further includes: and acquiring an original physical position of the vehicle according to the position information, and marking the original physical position and the new physical position in a control physical layer.
Further, in the second step, the encrypting the vehicle position information by the information encrypting module using the information encrypting program includes:
(1) the core network receives the position information which is sent by the terminal and is encrypted once through the cryptographic module, and the position information encrypted once is embedded in the KMD data frame format packet;
(2) the KMD analyzes and decrypts the KMD data frame format packet to obtain the position information; carrying out secondary encryption on the position information;
(3) and packaging the secondarily encrypted position information according to a protocol stack format to form a core network data frame format packet, and transmitting the core network data frame format packet back to the core network.
Further, in step three, the transmitting the encrypted vehicle location information by the information transmission module using the information transmission program includes:
the core network analyzes the returned core network data frame format packet to obtain secondary encrypted position information; and then forwards the information to the corresponding dispatcher.
Further, in step three, the performing, by the security defense module, security defense in the transmission of the vehicle location information by using the security defense program includes:
(1) the central node distributes a sequence number for the data frame and sends the sequence number to each receiving sub-node;
(2) inserting each bit number in the serial number into a data field of the data frame according to a preset insertion rule to obtain a transmission data frame, and sending the transmission data frame to at least one receiving child node;
(3) after receiving the transmission data frame, the receiving child node extracts a serial number according to a preset insertion rule issued by the central node in advance;
(4) and authenticating the extracted serial number and reserving the transmission data frame after the authentication is successful.
Further, in the fourth step, the decrypting the encrypted information by the information decrypting module using the information decrypting program after the user information is verified to be passed includes: after the dispatching machine receives the KMD forwarding information, the KMD forwarding information is decrypted through the cipher machine to obtain position information; and sending the position information to the corresponding dispatching desk.
Further, the decrypting the KMD forwarding information by the crypto machine includes: the cipher machine is arranged in the reporting terminal in a crimping mode, and carries out encryption information interaction with the reporting terminal by utilizing the SDIO serial interface, so that the encryption and decryption processing of the position information service of the reporting terminal is realized.
It is another object of the present invention to provide a computer program product stored on a computer readable medium, comprising a computer readable program for providing a user input interface to implement the internet of vehicles based location privacy preserving method when executed on an electronic device.
It is another object of the present invention to provide a computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the car networking location based privacy protecting method.
By combining all the technical schemes, the invention has the advantages and positive effects that: the invention can realize the acquisition of the real-time position information of the vehicle through the arrangement of the position information updating module; the obtained vehicle position information is encrypted and then transmitted and safety defense in the transmission process is carried out, so that the safety of data transmission can be ensured, and the leakage of the vehicle position information is reduced; when the user position information is acquired, the user position information can be acquired only by user identity authentication and decryption, so that the convenience degree is higher; meanwhile, if the verification information is wrong, the current information is erased, information leakage is reduced, information loss can be reduced by backing up the information, and the problem of information loss caused by malicious intrusion is prevented.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.
Fig. 1 is a block diagram of a privacy protection system based on a location in a car networking according to an embodiment of the present invention.
Fig. 2 is a flowchart of a privacy protection system and a protection method based on a location in the internet of vehicles according to an embodiment of the present invention.
Fig. 3 is a flowchart of updating vehicle location information by a location information updating module using a location information updating program according to an embodiment of the present invention.
Fig. 4 is a flowchart of encrypting vehicle location information by an information encryption module using an information encryption program according to an embodiment of the present invention.
FIG. 5 is a flow chart of security defense in the transmission of vehicle location information by the security defense module using a security defense program according to an embodiment of the present invention.
In fig. 1: 1. a GPS positioning module; 2. a location information update module; 3. an information encryption module; 4. a central control module; 5. an information transmission module; 6. a security defense module; 7. a user authentication module; 8. an information decryption module; 9. a display module; 10. an information backup module; 11. a source information erasing module; 12. and an early warning module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Aiming at the problems in the prior art, the invention provides a privacy protection system and a protection method based on the position of the Internet of vehicles, and the invention is described in detail with reference to the attached drawings.
As shown in fig. 1, a privacy protection system based on a location in a car networking according to an embodiment of the present invention includes:
the system comprises a GPS positioning module 1, a position information updating module 2, an information encryption module 3, a central control module 4, an information transmission module 5, a security defense module 6, a user verification module 7, an information decryption module 8, a display module 9, an information backup module 10, a source information erasing module 11 and an early warning module 12;
the GPS positioning module 1 is connected with the central control module 4 and is used for acquiring the position information of the vehicle through a GPS positioner;
the position information updating module 2 is connected with the central control module 4 and is used for updating the position information of the vehicle in real time through a position information updating program;
the information encryption module 3 is connected with the central control module 4 and is used for encrypting the vehicle position information through an information encryption program;
the central control module 4 is connected with the GPS positioning module 1, the position information updating module 2, the information encryption module 3, the information transmission module 5, the security defense module 6, the user verification module 7, the information decryption module 8, the display module 9, the information backup module 10, the source information erasing module 11 and the early warning module 12 and is used for controlling the normal operation of each module through a main control computer;
the information transmission module 5 is connected with the central control module 4 and is used for transmitting the encrypted information through an information transmission program;
the safety defense module 6 is connected with the central control module 4 and is used for carrying out safety defense in information transmission through a safety defense program;
the user authentication module 7 is connected with the central control module 4 and used for authenticating the user information through a user authentication program;
the information decryption module 8 is connected with the central control module 4 and used for decrypting the encrypted information after the verification is passed through an information decryption program;
the display module 9 is connected with the central control module and is used for displaying the verification information and the decryption information through a display;
the information backup module 10 is connected with the central control module 4 and is used for carrying out information backup when the verification fails through an information backup program;
the source information erasing module 11 is connected with the central control module 4 and is used for erasing the original encrypted information through a source information erasing program;
and the early warning module 12 is connected with the central control module 4 and is used for carrying out early warning when the verification fails by using an early warning program.
As shown in fig. 2, the privacy protection method based on the location in the car networking according to the embodiment of the present invention includes the following steps:
s101, acquiring the position information of the vehicle by using a GPS locator through a GPS positioning module; updating the vehicle position information by using a position information updating program through a position information updating module to obtain the real-time position information of the vehicle;
s102, encrypting the vehicle position information by using an information encryption program through an information encryption module to obtain the encrypted vehicle position information; the central control module controls each module to normally operate by using the main control machine;
s103, the encrypted vehicle position information is transmitted by the information transmission module through an information transmission program; safety defense in vehicle position information transmission is carried out by utilizing a safety defense program through a safety defense module;
s104, verifying the user information by using a user verification program through a user verification module; the information decryption module decrypts the encrypted information by using the information decryption program after the user information passes the verification; the display module is used for displaying the verification information and the decryption information by using the display;
s105, information backup is carried out by the information backup module through the information backup program when the verification fails; erasing original encrypted information by using a source information erasing program through a source information erasing module, and reserving backup information;
and S106, early warning is carried out by the early warning module by utilizing an early warning program when the verification fails.
As shown in fig. 3, in step S101, the updating of the vehicle location information by the location information updating module using the location information updating program according to the embodiment of the present invention includes:
s201, receiving first vehicle position information acquired by a GPS locator;
s202, after a period of time interval, the GPS locator obtains the position information of the second vehicle
S203, comparing the first vehicle position information and the second vehicle position information of the vehicle, and judging whether the position information is changed;
s204, when the position information is changed, sending a position change request to the terminal through the physical layer consistent with the control physical layer, and acquiring corresponding position change operation performed by a user after receiving the position change request;
and S205, updating the position of the corresponding information point of the terminal in the control physical layer according to the new physical position of the terminal included in the position change operation.
The embodiment of the invention provides a method for updating vehicle position information by using a position information updating program through a position information updating module, which further comprises the following steps: and acquiring an original physical position of the vehicle according to the position information, and marking the original physical position and the new physical position in a control physical layer.
As shown in fig. 4, in step S102, the encrypting the vehicle location information by the information encrypting module using the information encrypting program according to the embodiment of the present invention includes:
s301, a core network receives the position information which is sent by a terminal and is encrypted once through a cryptographic module, and the encrypted position information once is embedded in a KMD data frame format packet;
s302, the KMD analyzes and decrypts the KMD data frame format packet to obtain the position information; carrying out secondary encryption on the position information;
and S303, packaging the secondarily encrypted position information according to a protocol stack format to form a core network data frame format packet, and transmitting the core network data frame format packet back to the core network.
In step S103, the transmission of the encrypted vehicle location information by the information transmission module using the information transmission program according to the embodiment of the present invention includes:
the core network analyzes the returned core network data frame format packet to obtain secondary encrypted position information; and then forwards the information to the corresponding dispatcher.
As shown in fig. 5, in step S103, the safety defense in the transmission of the vehicle location information by the safety defense module using the safety defense program according to the embodiment of the present invention includes:
s401, the central node distributes a sequence number for the data frame and sends the sequence number to each receiving sub-node;
s402, inserting each bit number in the serial number into a data field of the data frame according to a preset insertion rule to obtain a transmission data frame, and sending the transmission data frame to at least one receiving child node;
s403, after receiving the transmission data frame, the receiving sub-node extracts the serial number according to a preset insertion rule issued by the central node in advance;
s404, the extracted serial number is authenticated, and the transmission data frame is reserved after the authentication is successful.
In step S104, the decrypting the encrypted information by the information decrypting module using the information decrypting program according to the embodiment of the present invention after the user information is authenticated, includes: after the dispatching machine receives the KMD forwarding information, the KMD forwarding information is decrypted through the cipher machine to obtain position information; and sending the position information to the corresponding dispatching desk.
The KMD forwarding information decryption through the cipher machine provided by the embodiment of the invention comprises the following steps: the cipher machine is arranged in the reporting terminal in a crimping mode, and carries out encryption information interaction with the reporting terminal by utilizing the SDIO serial interface, so that the encryption and decryption processing of the position information service of the reporting terminal is realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made by those skilled in the art within the technical scope of the present invention disclosed herein, which is within the spirit and principle of the present invention, should be covered by the present invention.
Claims (10)
1. A privacy protection method based on the position of the Internet of vehicles is characterized by comprising the following steps:
acquiring the position information of the vehicle by using a GPS (global positioning system) positioner; updating the vehicle position information by using a position information updating program through a position information updating module to obtain the real-time position information of the vehicle;
encrypting the vehicle position information by using an information encryption program to obtain the encrypted vehicle position information; the central control module controls each module to normally operate by using the main control machine;
transmitting the encrypted vehicle position information by using an information transmission program; safety defense in vehicle position information transmission is carried out by utilizing a safety defense program through a safety defense module;
verifying the user information by using a user verification program; the information decryption module decrypts the encrypted information by using the information decryption program after the user information passes the verification; the display module is used for displaying the verification information and the decryption information by using the display;
using an information backup program to perform information backup when the verification fails; erasing original encrypted information by using a source information erasing program through a source information erasing module, and reserving backup information;
and early warning is carried out by utilizing an early warning program when the verification fails.
2. The privacy protection method based on the location of the internet of vehicles according to claim 1, wherein the updating of the location information of the vehicle by using the location information updating program comprises the following steps:
(1) receiving first vehicle position information acquired by a GPS (global positioning system) locator;
(2) after a time interval, the GPS locator obtains the second vehicle position information
(3) Comparing the first vehicle position information and the second vehicle position information of the vehicle, and judging whether the position information is changed;
(4) when the position information is changed, sending a position change request to the terminal through the physical layer consistent with the control physical layer, and acquiring corresponding position change operation performed by a user after receiving the position change request;
(5) and updating the position of the corresponding information point of the terminal in the control physical layer according to the new physical position of the terminal included in the position change operation.
3. The privacy protection method based on location in internet of vehicles according to claim 2, wherein the updating of the location information of the vehicle by the location information updating program further comprises: and acquiring an original physical position of the vehicle according to the position information, and marking the original physical position and the new physical position in a control physical layer.
4. The privacy protection method based on the location of the internet of vehicles according to claim 1, wherein the encrypting the vehicle location information by using the information encrypting program comprises the following steps:
(1) the core network receives the position information which is sent by the terminal and is encrypted once through the cryptographic module, and the position information encrypted once is embedded in the KMD data frame format packet;
(2) the KMD analyzes and decrypts the KMD data frame format packet to obtain the position information; carrying out secondary encryption on the position information;
(3) and packaging the secondarily encrypted position information according to a protocol stack format to form a core network data frame format packet, and transmitting the core network data frame format packet back to the core network.
5. The privacy protection method based on the vehicle networking position as claimed in claim 1, wherein the transmission of the encrypted vehicle position information by using the information transmission program comprises the following steps:
the core network analyzes the returned core network data frame format packet to obtain secondary encrypted position information; and then forwards the information to the corresponding dispatcher.
6. The vehicle networking based location privacy protection method of claim 1, wherein the utilizing a security defense program for security defense in vehicle location information transmission comprises:
(1) the central node distributes a sequence number for the data frame and sends the sequence number to each receiving sub-node;
(2) inserting each bit number in the serial number into a data field of the data frame according to a preset insertion rule to obtain a transmission data frame, and sending the transmission data frame to at least one receiving child node;
(3) after receiving the transmission data frame, the receiving child node extracts a serial number according to a preset insertion rule issued by the central node in advance;
(4) and authenticating the extracted serial number and reserving the transmission data frame after the authentication is successful.
7. The privacy protection method based on the internet of vehicles for the position, which is characterized in that the information decryption program is used for decrypting the encrypted information after the user information is verified, and comprises the following steps: after the dispatching machine receives the KMD forwarding information, the KMD forwarding information is decrypted through the cipher machine to obtain position information; and sending the position information to the corresponding dispatching desk.
8. The privacy protection method based on the location of the internet of vehicles as claimed in claim 7, wherein the decryption of the KMD forwarded information by the cryptographic machine comprises: the cipher machine is arranged in the reporting terminal in a crimping mode, and carries out encryption information interaction with the reporting terminal by utilizing the SDIO serial interface, so that the encryption and decryption processing of the position information service of the reporting terminal is realized.
9. A privacy protection system based on location in vehicle networking is characterized in that the privacy protection system based on location in vehicle networking comprises:
the GPS positioning module is connected with the central control module and is used for acquiring the position information of the vehicle through a GPS positioner;
the position information updating module is connected with the central control module and is used for updating the vehicle position information in real time through a position information updating program;
the information encryption module is connected with the central control module and is used for encrypting the vehicle position information through an information encryption program;
the central control module is connected with the GPS positioning module, the position information updating module, the information encryption module, the information transmission module, the security defense module, the user verification module, the information decryption module, the display module, the information backup module, the source information erasing module and the early warning module and is used for controlling each module to normally operate through the main control computer;
the information transmission module is connected with the central control module and is used for transmitting the encrypted information through an information transmission program;
the safety defense module is connected with the central control module and is used for carrying out safety defense in information transmission through a safety defense program;
the user authentication module is connected with the central control module and used for authenticating the user information through a user authentication program;
the information decryption module is connected with the central control module and used for decrypting the encrypted information after the verification is passed through the information decryption program;
the display module is connected with the central control module and is used for displaying the verification information and the decryption information through the display;
the information backup module is connected with the central control module and is used for carrying out information backup when the verification fails through an information backup program;
the source information erasing module is connected with the central control module and is used for erasing the original encrypted information through a source information erasing program;
and the early warning module is connected with the central control module and is used for early warning when the used early warning program fails to pass the verification.
10. A computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the method for privacy protection based on location in internet of vehicles according to any one of claims 1 to 8.
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| CN115987698A (en) * | 2023-03-22 | 2023-04-18 | 深圳市移联通信技术有限责任公司 | GPS positioning information encryption transmission method and system |
| CN116419216A (en) * | 2023-04-18 | 2023-07-11 | 上海兴岩信息科技有限公司 | Road rescue privacy protection system and method |
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| CN105187254A (en) * | 2015-09-28 | 2015-12-23 | 北京奇虎科技有限公司 | Location change update method and system based on physical location in local area network |
| CN107508797A (en) * | 2017-07-28 | 2017-12-22 | 广州亿程交通信息有限公司 | Car networking platform data transmission security method |
| US20200259655A1 (en) * | 2017-07-31 | 2020-08-13 | Digiparts, Inc. | Connected gateway server system for real-time vehicle control service |
| CN108174344A (en) * | 2017-12-25 | 2018-06-15 | 成都三零瑞通移动通信有限公司 | GIS location informations transmission encryption method and device in a kind of cluster communication |
| CN109246087A (en) * | 2018-08-17 | 2019-01-18 | 苏州格目软件技术有限公司 | A kind of information storage system based on network security |
| CN109067797A (en) * | 2018-09-27 | 2018-12-21 | 深圳友讯达科技股份有限公司 | A kind of network security defence method |
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| CN115987698A (en) * | 2023-03-22 | 2023-04-18 | 深圳市移联通信技术有限责任公司 | GPS positioning information encryption transmission method and system |
| CN115987698B (en) * | 2023-03-22 | 2023-05-30 | 深圳市移联通信技术有限责任公司 | GPS positioning information encryption transmission method and system |
| CN116419216A (en) * | 2023-04-18 | 2023-07-11 | 上海兴岩信息科技有限公司 | Road rescue privacy protection system and method |
| CN116419216B (en) * | 2023-04-18 | 2024-02-06 | 上海兴岩信息科技有限公司 | Road rescue privacy protection system and method |
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