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Communication method and communication system between vehicles

A communication method and vehicle technology, applied in the field of communication methods and communication systems between vehicles, capable of solving problems such as eavesdropping and communication data interference

Active Publication Date: 2021-08-20
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing vehicle communication process, vehicles transmit to each other basically unencrypted raw data, and there is a risk of communication data being interfered and eavesdropped

Method used

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  • Communication method and communication system between vehicles
  • Communication method and communication system between vehicles
  • Communication method and communication system between vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] figure 1 It is a flowchart of a communication method between vehicles according to Embodiment 1 of the present invention. Such as figure 1 As shown, the method includes:

[0056] Step S11: The sending end uses the license plate number of the other party to generate a first key, and uses the first key to encrypt the communication data;

[0057] Step S12: The sending end uses the license plate number of the vehicle to generate a second key, and uses the second key to sign the encrypted communication data; and

[0058] Step S13: The receiving end uses the second key to perform signature authentication on the received signed communication data, and uses the first key to decrypt the authenticated communication data.

[0059]First of all, it should be noted that the sending end in the embodiment of the present invention refers to the vehicle that sends the communication data, and the receiving end refers to the vehicle that receives the communication data. For example, if...

Embodiment 2

[0097] Different from the first embodiment, the second embodiment of the present invention provides another communication method between vehicles. Figure 8 It is a flowchart of a communication method between vehicles according to Embodiment 2 of the present invention. Such as Figure 8 As shown, the method includes:

[0098] Step S81: The sending end uses the license plate number of the vehicle to generate a first key, and uses the first key to encrypt the communication data;

[0099] Step S82: The sending end uses the license plate number of the other party to generate a second key, and uses the second key to sign the encrypted communication data; and

[0100] Step S83: The receiving end uses the second key to perform signature authentication on the received signed communication data, and uses the first key to decrypt the authenticated communication data.

[0101] In step S81, the first key is obtained in the following manner: the vehicle's license plate number or the veh...

Embodiment 3

[0137] In combination with the communication method between vehicles provided in Embodiment 1 and Embodiment 2, Embodiment 3 of the present invention provides a communication system between vehicles, and the communication system is installed on a vehicle. Figure 9 A communication system between vehicles according to an embodiment of the present invention is schematically shown. Such as Figure 9 As shown, the communication system 90 (90') includes:

[0138] Encryption and signature module 901 (901'), which is used to: use the license plate number of the other party to generate a first key, and use the first key to encrypt the communication data, use the license plate number of the vehicle to generate a second key, and signing the encrypted communication data by using the second key,

[0139] Or, use the license plate number of the vehicle to generate a first key, and use the first key to encrypt the communication data, use the license plate number of the other party to gene...

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Abstract

The present invention relates to a communication method and a communication system between vehicles. The method includes: a sending end generates a first key using the license plate number of the other party / this vehicle, and uses the first key to encrypt communication data; the sending end uses this The vehicle / opponent's license plate number generates a second key, and uses the second key to sign the encrypted communication data; and the receiving end uses the second key to perform signature authentication on the received signed communication data , and use the first key to decrypt the authenticated communication data. The invention realizes the encryption and content protection of the vehicle communication data, effectively prevents the communication content from being eavesdropped, and effectively prevents the communication content from being disturbed and deleted.

Description

technical field [0001] The invention relates to the technical field of vehicle traffic, in particular to a communication method between vehicles and a communication system between vehicles. Background technique [0002] At present, motor vehicles have become an important part of people's daily life and work. In recent years, with the continuous increase of the number of motor vehicles, people's demand for communication between vehicles is also increasing. However, in the existing vehicle communication process, vehicles transmit to each other basically unencrypted raw data, and there is a risk of communication data being interfered and eavesdropped. [0003] Therefore, there is an urgent need for a convenient way to protect communication data between vehicles. Contents of the invention [0004] In order to solve the above-mentioned technical problems, the present invention provides a communication method between vehicles and a communication system between vehicles, which ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/08H04W4/46H04W12/03H04W12/02H04W12/041G06K9/34
CPCH04L9/0866H04W4/46H04W12/02H04L2209/72H04L2209/84G06V30/153G06V20/625
Inventor 吴育宏洪泽
Owner GREE ELECTRIC APPLIANCES INC
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