Data secure transmission system and method for firmware upgrade

A firmware upgrade and transmission system technology, applied in the direction of digital transmission system, transmission system, data exchange network, etc., can solve the problem of unsafe firmware upgrade

Active Publication Date: 2017-06-13
NIO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the firmware upgrade over the air can easily complete the firmware upgrade of the ECU, due to the openness of the wireless transmission it uses, it is also easy to lead to unsafe firmware upgrades

Method used

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  • Data secure transmission system and method for firmware upgrade
  • Data secure transmission system and method for firmware upgrade

Examples

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no. 1 example

[0115] see figure 1 , figure 1 A schematic structural diagram of a data security transmission system for firmware upgrades in the first embodiment of the present invention is shown, and the specific structure includes:

[0116] The authentication center 101 is configured to generate public key authentication information of the corresponding unit based on the identification code and public key of each unit, and send it to the corresponding unit after being encrypted by the public key of the corresponding unit. After being authenticated by the authentication center 101 , secure data transmission can be performed between units based on public key authentication information. Specifically, in this embodiment, each unit encrypts its own identification code and public key with the public key of the authentication center 101 and sends them to the authentication center 101, and the authentication center 101 generates the following public key authentication information:

[0117] E[PR ...

no. 2 example

[0126] see figure 2 , figure 2 It shows a schematic flow diagram of the data security transmission system for firmware upgrade in the second embodiment of the present invention, and the specific steps are as follows:

[0127] S201. Generate public key authentication information of the corresponding unit based on the identification codes and public keys of other units through the certification center, and send it to the corresponding unit.

[0128] Specifically, in this embodiment, the process for the authentication center to generate public key authentication information for each unit is as follows:

[0129] The certification center sends its own public key PU CA Sent to each unit, each unit receives the PU CA After the own public key PU X and ID X by PU CA After encryption, it is sent to the certification center, and the certification center passes its own private key PR CA Obtain PU after decrypting the information X and ID X Then generate the following public key...

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PUM

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Abstract

The invention provides a data secure transmission system and method for firmware upgrade. The system comprises an authentication center, a firmware distribution unit and a firmware receiving unit. The authentication center is configured to generate public key authentication information of corresponding units on the basis of identity identification codes and public keys of the units and send the public key authentication information to the corresponding units. The firmware distribution unit is configured to take the selected firmware upgrade information as a transmission data file, generates an encryption data file on the basis of the public key authentication information of the firmware receiving unit and send the encryption data file to the corresponding firmware receiving unit. The firmware receiving unit is configured to receive and decrypt encryption data file sent by the firmware distribution unit, thereby obtaining the firmware upgrade information. The secure transmission of the data in the firmware upgrade process is fully ensured.

Description

technical field [0001] The present invention relates to the technical field of firmware upgrading, and more specifically, the present invention relates to a data security transmission system and method for firmware upgrading. Background technique [0002] Nowadays, cars generally contain a lot of ECUs (Electronic Control Unit, electronic control unit). When these ECUs fail or the functions need to be improved, the firmware of these ECUs needs to be upgraded, and now FOTA (Firmware Over The Air, firmware upgrade over the air) can be used to complete the remote firmware upgrade, that is, the vehicle does not need to be driven to the 4S shop for upgrade. It is very convenient to carry out remote firmware upgrade through FOTA. However, although over-the-air firmware upgrade can easily complete the firmware upgrade of the ECU, due to the openness of the wireless transmission it uses, it is also easy to lead to unsafe firmware upgrades. Therefore, it is necessary to improve the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L29/06
CPCH04L41/082H04L63/06H04L63/18
Inventor 陈崇峰
Owner NIO CO LTD
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