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Firewall of vehicle-mounted information system of automobile

An in-vehicle information system and in-vehicle system technology, applied in the field of firewalls, can solve problems such as loss of control of cars, damage to people and vehicles, etc.

Active Publication Date: 2016-08-17
CHENGDU UNIV OF INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a firewall for the vehicle-mounted information system, which aims to solve the problem that when the car is driving, the attack from the external network to the car during driving will cause the car to lose control and cause damage to the car

Method used

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  • Firewall of vehicle-mounted information system of automobile

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Embodiment Construction

[0031] 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.

[0032] The present invention consists of a smart phone or an intelligent terminal that can connect to an external network to form a hardware platform. The firewall is an APP installed on the mobile phone or the intelligent terminal. The firewall is the only entrance and exit for the vehicle-mounted information system to connect to the external network. After the detection of preset security rules, reasonable and legal data can enter the gateway inside the car through the ELM327 connected to the smart phone or terminal, and then through the OBD-II connected to the ELM327, and then the gateway forwards it to different vehicles...

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Abstract

The invention discloses a firewall of a vehicle-mounted information system of an automobile. According to the firewall, a hardware platform is composed of a smart phone or a smart terminal connected with an external network. The firewall is an APP installed in the smart phone or the smart terminal. The firewall is the unique entry / exit for connecting the vehicle-mounted information system and the external network. Data enters a gateway in the automobile after passing through an ELM327 connected with the smart phone or terminal and then passing through an OBD-II connected with the ELC327. The data is forwarded to different intra-automobile buses by the gateway according to the features of the data. Finally the data enters corresponding ECUs for execution. The illegal data is filtered by security rules of the firewall and then is discarded. The firewall of the vehicle-mounted information system of the automobile comprises the ELM327, the OBD-II, the gateway, the ECUs and the firewall APP. According to the system, a flooding attack can be prevented and a service attack can be rejected through statistical rules; and a replay attack can be prevented through address filtration.

Description

technical field [0001] The invention belongs to the technical field of automobile information security, and in particular relates to a firewall for an automobile vehicle information system. Background technique [0002] As early as 2004, German scholar Marko Wolf predicted the security issues of the in-vehicle network, and realized data encryption protection, operation defense and authentication between the in-vehicle gateway and other ECUs through modern encryption mechanisms. In 2007, scholars from Switzerland, France and Germany proposed a security architecture based on vehicular communication (VC) systems. The main goals of the architecture include identity and key management, secure communication, and privacy-enhanced integrated technologies enabling secure upgrade of remote ECU firmware information. Two Swiss scholars, Maxim Raya and Jean-Pierre Hubaux, provided a security architecture based on the adhoc network to ensure the secure transmission of data between V2V an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
CPCH04L63/0236H04L63/0245
Inventor 李飞龚海余
Owner CHENGDU UNIV OF INFORMATION TECH
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