Secure communication method for vehicle-mounted TBOX and cloud server

A cloud server and secure communication technology, applied in the field of Internet of Vehicles, can solve problems such as difficulty in ensuring the security of transmitted data, data not encrypted, etc., to prevent theft of information and improve security.

Pending Publication Date: 2020-02-04
SAIC-GM-WULING AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology generally puts the effective information in the communication directly on the TCP / IP layer for transmission, and does not encrypt the data; or adopts a single fixed encryption algorithm, and the key is not updated during the entire life cycle of the TBOX. This encrypted transmission It is difficult to guarantee the security of transmitted data

Method used

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  • Secure communication method for vehicle-mounted TBOX and cloud server

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0028] A flow chart of a secure communication method between a vehicle-mounted TBOX and a cloud server in an embodiment of the present invention is as follows figure 1 As shown, the method includes:

[0029] S101, the vehicle-mounted TBOX communicates with the cloud server for authentication, and obtains the RSA public key 2 from the CA certificate sent back by the cloud server;

[0030] This step is used for identity authentication before the vehicle-mounted TBOX communicates with the cloud server. Authentication can prevent attackers from impersonating legitimate users to gain access to resources, ensuring the security of systems and data, as well as the legitimate interests of authorized visitors. Identity authentication is generally implemented by verifying user names and passwords. In this embodiment, after passing the authentication, the vehicle-moun...

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Abstract

The invention discloses a safety communication method for a vehicle-mounted TBOX and a cloud server. The method comprises the following steps: a vehicle-mounted TBOX performs communication authentication with a cloud server, and acquires an RSA public key 2 from a CA certificate sent back by the cloud server; the vehicle-mounted TBOX negotiates with the cloud server to generate an AES key; the vehicle-mounted TBOX encrypts the plaintext message by using the AES key, and sends the encrypted message to the cloud server; meanwhile, the AES secret key is encrypted through an RSA public key 2, andthe encrypted AES secret key is sent to the cloud server; and the cloud server decrypts the received encrypted AES key by using the RSA private key 2 to obtain an AES key, and decrypts the received encrypted message by using the AES key to obtain a plaintext message. According to the invention, the AES secret key is generated through communication authentication and negotiation, the plaintext message is encrypted by using the AES secret key, and the encrypted AES secret key is sent, so that the safety of data transmission is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of Internet of Vehicles, and in particular relates to a safe communication method between a vehicle-mounted TBOX and a cloud server. Background technique [0002] The concept of Internet of Vehicles is derived from the Internet of Things. According to the definition of the China Internet of Things School-Enterprise Alliance, the Internet of Vehicles is a huge interactive network composed of information such as vehicle location, speed, and route. The vehicle can complete the collection of its own environment and state information through GPS, RFID, sensors, camera image processing and other devices. Through Internet technology, all vehicles can transmit various information of themselves to the central processing unit. Process and analyze the information of a large number of vehicles through computer technology, so as to calculate the best routes for different vehicles and report road conditions in time. ...

Claims

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Application Information

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IPC IPC(8): H04W4/44H04W12/02H04W12/04H04W12/06H04L9/32H04L9/30H04L9/08H04L9/06H04W12/041H04W12/0431H04W12/069
CPCH04W4/44H04W12/02H04W12/06H04W12/04H04L9/0631H04L9/0822H04L9/302H04L9/3263
Inventor 姜洪亮崔硕彭杨杨汉飞黄建鹏
Owner SAIC-GM-WULING AUTOMOBILE CO LTD
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