A method and system for upgrading automobile software based on electronic mobile certificate
A mobile certificate and automotive software technology, applied in transmission systems, electrical components, digital transmission systems, etc., can solve problems such as failure to consider the legality of information sources and the safety of automotive software upgrades.
Active Publication Date: 2020-04-28
CHENGDU UNIV OF INFORMATION TECH
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Problems solved by technology
[0008] Many existing methods fail to consider the legality of information sources and participants in the entire process of software upgrades, as well as the security issues of vehicle software upgrades caused by monitoring, information falsification, and interception
Method used
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[0051] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0052] In the prior art, some upgrade methods only consider part of the time cost (vehicles are difficult to obtain wireless network hotspots, resulting in a long upgrade time) and traffic costs (the mobile network traffic price is relatively high), and the software installation package is too large Problem; some duplex and half-duplex communication methods that only consider the data packets transmitted by the underlying CAN bus. Many existing methods fail to consider the legality of information sources and participants in the entire process of software upgrades, as well as the security issues of vehicle software upgrades ...
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The invention belongs to the technical field of automobile electronics, and discloses an automobile software upgrade method and system based on an electronic mobile certificate, which performs identity legality between a software upgrade terminal device, a software upgrade client device, an electronic mobile certificate device, and a software upgrade management platform detection; the upgrade is allowed on the basis of determining the validity of the relevant objects of the software upgrade; during the upgrade process, on the basis of authentication, a mutual session key is established, and AES encryption processing and integrity Hash calculation are performed on the transmitted data to prevent The data is monitored and serially modified; the automobile software upgrade management platform records, analyzes and manages the important log information of objects, time, and transactions during the entire upgrade process. In the upgrade process, the present invention establishes mutual session keys on the basis of authentication, performs AES encryption processing and integrity Hash calculation on transmitted data, and prevents data from being monitored and falsified.
Description
technical field [0001] The invention belongs to the technical field of automobile electronics, and in particular relates to a method and system for upgrading automobile software based on an electronic mobile certificate. Background technique [0002] Currently, the closest prior art: [0003] The intelligentization and networking of automobiles has led to a rapid increase in the number of electronic devices inside the car, and more and more information interactions between on-board electronic devices, electronic control units and the outside world. These on-board electronic devices and ECU (Electronic Control Unit) distributed in various parts of the car are like the human brain, detecting and controlling a certain component or subsystem. According to the report of the Institute of Electrical and Electronics Engineers and IHS Consulting Company, in the early 1980s, the electronic system of a car had only 50,000 lines of code, but now the electronic system of a high-end luxu...
Claims
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IPC IPC(8): H04L29/06G06F8/654H04L9/32
CPCG06F8/654H04L9/3236H04L9/3247H04L9/3263H04L63/045H04L63/0823H04L63/123
Inventor 石磊苏文杰李飞王娟张浩曦张路桥吴春旺丁哲罗雪
Owner CHENGDU UNIV OF INFORMATION TECH