KR102711622B1 - System and methd of providing vehicle message capable of preventing damage caused by hacking using blockchain - Google Patents

Abstract

A vehicle message providing system and method for preventing damage caused by hacking using blockchain are disclosed. A management server used in the vehicle message providing system includes a communication unit which is a communication channel between at least one vehicle and a blockchain, a vehicle unit which receives a vehicle message from a specific vehicle, and a blockchain unit which verifies the validity of the vehicle message by transmitting the received vehicle message or a block corresponding to the received vehicle message to the blockchain. Here, the vehicle message is a message transmitted from a front vehicle to a rear vehicle, and the specific vehicle is the rear vehicle.

Description

{SYSTEM AND METHD OF PROVIDING VEHICLE MESSAGE CAPABLE OF PREVENTING DAMAGE CAUSED BY HACKING USING BLOCKCHAIN}

The present invention relates to a vehicle message provision system and method that prevents damage caused by hacking using blockchain.

If a car accident occurs on the road and the car behind is not aware of it, a chain reaction accident may occur. Therefore, technology is being developed to transmit safety messages to the car behind when a car accident occurs.

However, if a hacker intercepts the safety message and sends the manipulated message to the vehicle behind, a bigger accident could occur. However, there is no technology that can prevent damage caused by such hacking.

KR 10-2021-0083653 A

The present invention provides a vehicle message provision system and method that prevents damage caused by hacking by using blockchain.

[ Assignment Information ]

Subproject Number: P0013839

Ministry Name: Ministry of Trade, Industry and Energy

Research Management Specialist Organization: Korea Industrial Technology Assessment and Management Institute

Research Project Name: Industrial Technology Innovation Project

Research Project Name: Development of a Verification Platform for Autonomous Driving Service in Urban Areas Based on Demand for 5G-based Autonomous Driving Convergence Technology

Contribution rate: 1/1

Host organization: Autonomous A2G Co., Ltd.

Research Period: 2020-05-01 ~ 2022-12-31

In order to achieve the above-described purpose, a management server used in a vehicle message providing system according to one embodiment of the present invention includes: a communication unit which is a communication channel between at least one vehicle and a blockchain; a vehicle unit which receives a vehicle message from a specific vehicle; and a blockchain unit which verifies the validity of the vehicle message by transmitting the received vehicle message or a block corresponding to the received vehicle message to the blockchain. Here, the vehicle message is a message transmitted from a front vehicle to a rear vehicle, and the specific vehicle is the rear vehicle.

A management server used in a vehicle message providing system according to another embodiment of the present invention includes: a communication unit which is a communication channel between at least one vehicle and a blockchain; a vehicle unit which receives a vehicle message from a specific vehicle; and a blockchain unit which verifies the validity of the vehicle message by transmitting the received vehicle message or a block corresponding to the received vehicle message to the blockchain. Here, the vehicle message is a message to be transmitted from a front vehicle to a rear vehicle, and the specific vehicle is the front vehicle.

A method for providing a vehicle message according to one embodiment of the present invention comprises the steps of: receiving a vehicle message from a specific vehicle; transmitting the received vehicle message or a block corresponding thereto to a blockchain to verify validity; and receiving a result of the validity verification from the blockchain. Here, the vehicle message is a message transmitted from a front vehicle to a rear vehicle or a message to be transmitted from the front vehicle to the rear vehicle.

The vehicle message providing system and method according to the present invention can prevent damage caused by message manipulation through hacking by verifying the validity of vehicle messages exchanged between vehicles using blockchain.

FIG. 1 is a drawing illustrating a vehicle message providing system according to one embodiment of the present invention.
FIG. 2 is a flowchart illustrating a vehicle message providing process according to one embodiment of the present invention.
FIG. 3 is a drawing illustrating a vehicle message providing system according to another embodiment of the present invention.
FIG. 4 is a block diagram illustrating the configuration of a management server according to one embodiment of the present invention.

The singular expressions used in this specification include the plural expressions unless the context clearly indicates otherwise. In this specification, the terms "consisting of" or "comprising" should not be construed as necessarily including all of the various components or various steps described in the specification, and should be construed as not including some of the components or some of the steps, or may further include additional components or steps. In addition, the terms "... section", "module", etc. described in the specification mean a unit that processes at least one function or operation, and this may be implemented by hardware or software, or by a combination of hardware and software.

The present invention relates to a vehicle message providing system and method that can prevent damage caused by hacking using blockchain, and can prevent damage that may occur due to a hacked manipulated message being transmitted to a rear vehicle.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the attached drawings.

FIG. 1 is a drawing illustrating a vehicle message providing system according to one embodiment of the present invention.

Referring to FIG. 1, the vehicle message provision system of the present embodiment may include a management server (100), a blockchain (102), a plurality of vehicles (104), and a traffic server (106). Here, the server may be referred to as a computing device as a device capable of performing computational processing.

The vehicles (104) may be vehicles traveling on a road in the same direction and may be able to communicate with each other to exchange vehicle messages, for example, safety messages.

For example, when a vehicle (104a) is involved in an accident, the vehicle (104a) or a nearby vehicle (104b) can forward, for example, broadcast, a safety message to the rear, including content such as “There is an accident in the vehicle ahead, so take a detour.” As a result, the rear vehicles (104c and 104d) that have received the safety message can drive safely.

However, if such safety messages are hacked and manipulated messages are sent to vehicles (104), it may cause a major accident and serious traffic congestion. For example, in a situation where a safety message containing the content "There is an accident with the vehicle ahead, so reduce the speed to 30 km/h or less" must be sent, if a hacker hacks this and broadcasts a manipulated message containing the content "The accident with the vehicle ahead has been completed. The speed limit is 120 km/h" to the vehicles (104), a vehicle accident may not have occurred, but an accident may be caused by the manipulated message.

When the vehicles (104) receive a vehicle message from a front vehicle, they can transmit the received message to the management server (100), or when they want to transmit a message to a rear vehicle, they can transmit the message to the management server (100).

The management server (100) can verify the validity of a message received from at least one vehicle (104) by sending it to the blockchain (102). Specifically, the members (110, for example, 110a to 110n, nodes) of the blockchain (102) can verify whether the vehicle message received from the management server (100) is a normal message. In other words, the blockchain (102) can verify whether it is a manipulated message.

If the above vehicle message is a valid message, the management server (100) notifies the vehicle (104) that it is a valid message (or may ignore it without notifying), and the vehicle (104) may trust the received vehicle message or broadcast the vehicle message to the vehicles behind it.

If the above vehicle message is a manipulated message, the management server (100) may inform only the vehicle in question that it is a manipulated message, or may inform the vehicle and other vehicles as well. For example, if it is determined that the message to be transmitted by the first vehicle (104a) is a manipulated message, the second vehicle (104b) may receive this information from the management server (100) and discard or ignore the vehicle message transmitted from the first vehicle (104a).

According to another embodiment, the management server (100) generates a vehicle message received from a vehicle (104) into a block, and members (110) of the blockchain (102) mutually verify the validity of the block, and when verification is completed, the block can be registered in the chain.

Here, members (110) may be nodes (people) related to automobiles or nodes unrelated to automobiles. In addition, members (110) may be fixed nodes and may be added or removed only in certain situations.

In addition, the members (110) may be all or part of the members who have subscribed to a specific service, for example, a vehicle message service app. As a result, the members of the blockchain (110) may vary depending on member subscription/withdrawal, but they do not vary in real time and may basically be fixed nodes. As a result, it is desirable to understand the members (110) and members (100) as concepts that include a combination between blockchains.

The traffic server (106) is connected to the management server (100) for communication and can receive vehicle messages, blocks, or validation results from the management server (100).

Additionally, the traffic server (106) may generate a specific message based on information received from the management server (100) and transmit it to the vehicle (104).

In another embodiment, the traffic server (106) may transmit traffic-related information to the management server (100), and the management server (100) may provide the transmitted information or information generated thereby to the vehicle (104). In this case, the vehicle (104) may add the provided information to an existing vehicle message to generate a new vehicle message, and forward the generated vehicle message backward.

In summary, the vehicle message provision system of this embodiment can verify the validity of a message received by the vehicle (104) or the validity of a message to be transmitted to a rear vehicle by using a blockchain (102). That is, since the vehicle message provision system verifies the validity of the transmitted and received messages of the vehicle (104), even if hacked, damage caused by manipulated messages can be prevented.

Meanwhile, a vehicle or a driver of a vehicle that is judged to have hacked or manipulated a vehicle message may be registered as a blacklist in the management server (100), blockchain (102), or traffic server (106), and when a vehicle message is received from a vehicle on the blacklist in the future, it may be automatically determined as an invalid message without validation.

In the above, the validity of vehicle messages transmitted and received between vehicles (104) was verified using blockchain (102), but the validity of vehicle messages transmitted and received between vehicles (104) and a traffic server (106) or other servers may also be verified using blockchain (102).

In addition, although one blockchain (102) is used above, there may be multiple blockchains that verify validity, in which case a blockchain for vehicle message validity verification may be selected. This selection may be performed by the management server (100) or may be automatically performed according to a preset program.

FIG. 2 is a flowchart illustrating a vehicle message providing process according to one embodiment of the present invention.

Referring to FIG. 2, the vehicle message providing method of the present embodiment can forward, for example, broadcast, a vehicle message to ensure the safety of a following vehicle in the event of a vehicle accident (S200).

Next, the rear vehicle that has received the vehicle message transmits the vehicle message to the management server (100), and the management server (100) can verify whether the transmitted vehicle message is a valid message or verify whether the block corresponding to the transmitted vehicle message is a valid block through the blockchain (102) (S204).

Continuing, the management server (100) can transmit the validation result to the rear vehicle (S206).

If the vehicle message is valid, the following vehicle can determine that the vehicle message is a reliable message and take appropriate action. On the other hand, if the vehicle message is invalid, the following vehicle can ignore or delete the vehicle message.

In summary, the vehicle message provision system of the present embodiment can verify whether a vehicle message transmitted from a preceding vehicle is a valid message through blockchain (104).

Additionally, although not described above, it is possible to validate vehicle messages to be transmitted to rear vehicles, and only validated vehicle messages can be transmitted to rear vehicles.

Meanwhile, vehicle messages and related control actions in the vehicle can be performed automatically.

FIG. 3 is a drawing illustrating a vehicle message providing system according to another embodiment of the present invention.

Unlike the first embodiment where the management server existed separately from the blockchain, in this embodiment, one of the members (310) of the blockchain (102), for example, the member (310a), can perform the function of the management server. That is, the member (310a) of the blockchain (102) can perform not only the function of the management server but also the function as a member of the general blockchain. For example, the member (310a) can send a vehicle message transmitted from the vehicle (304) to other members (310b and 310n) to verify its validity and can also transmit the result of the validation to the vehicle (304).

Meanwhile, the member (310) performing the function of the management server may change as needed.

FIG. 4 is a block diagram illustrating the configuration of a management server according to one embodiment of the present invention.

Referring to FIG. 4, the management server (100) of the present embodiment may include a control unit (400), a communication unit (402), a vehicle unit (404), a blockchain unit (406), a traffic server unit (408), and a storage unit (410).

The communication unit (402) can provide a communication path with vehicles (104), blockchain (102), or traffic server (106).

The vehicle unit (404) can manage overall operations related to the vehicles (104). For example, the vehicle unit (404) can receive a vehicle message transmitted from the vehicle (104) and provide the vehicle (104) with a validation result transmitted from the blockchain (102) or information transmitted from the traffic server (106).

The blockchain unit (406) can control overall operations related to the blockchain (102). For example, the blockchain unit (406) can transmit a vehicle message transmitted from a vehicle (104) to the blockchain (102) to verify its validity, and receive a validation result from the blockchain (102).

The traffic server unit (408) can control overall operations related to the traffic server (106). For example, the traffic server unit (408) can provide vehicle messages or validation results to the traffic server (106) or provide information provided from the traffic server (106) to the vehicles (104).

The storage unit (410) can store various data such as vehicle messages and validation results.

The control unit (400) can control the overall operation of components of the management server (100).

Meanwhile, the management server (100) may further include a blacklist section for registering vehicles or drivers related to invalid messages as a result of vehicle message validation in a blacklist.

Meanwhile, the components of the above-described embodiment can be easily understood from a process perspective. That is, each component can be understood as each process. In addition, the process of the above-described embodiment can be easily understood from a component perspective of the device.

In addition, the technical contents described above may be implemented in the form of program commands that can be executed through various computer means and recorded on a computer-readable medium. The computer-readable medium may include program commands, data files, data structures, etc., alone or in combination. The program commands recorded on the medium may be those specially designed and configured for the embodiments or may be those known to and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical media such as CD-ROMs and DVDs, magneto-optical media such as floptical disks, and hardware devices specially configured to store and execute program commands such as ROMs, RAMs, and flash memories. Examples of the program commands include not only machine language codes generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter, etc. The hardware devices may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

The above-described embodiments of the present invention have been disclosed for the purpose of illustration, and those skilled in the art having common knowledge of the present invention will be able to make various modifications, changes, and additions within the spirit and scope of the present invention, and such modifications, changes, and additions should be considered to fall within the scope of the following claims.

100: Management Server 102: Blockchain
104: Vehicle 106: Traffic Server
110 : Node (member)

Claims (9)

In the vehicle message provision system,
Management server; and
Contains at least one blockchain,
The above management server
A communication unit which is a communication channel with at least one vehicle and the blockchain;
A vehicle unit receiving a vehicle message from a specific vehicle; and
Including a blockchain unit that transmits the received vehicle message or a block corresponding to the received vehicle message to the blockchain, and analyzes the transmitted vehicle message or block to receive the result of the validation of the vehicle message from the blockchain that verifies the validity of the vehicle message.
The above vehicle message is a message transmitted from the front vehicle to the rear vehicle, and the specific vehicle is the rear vehicle.
When there are multiple blockchains that can verify the validity of the above vehicle, the blockchain for verifying the above vehicle message is automatically selected according to a preset program.
A vehicle message provision system characterized in that the members of the blockchain that verify the validity of the above vehicle message are members who have subscribed to the vehicle message service app, the members of the blockchain change according to member subscription or withdrawal, and one of the members functions as the management server.
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