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Firewall of a car information system

A vehicle-mounted information system and vehicle-mounted system technology, applied in the field of firewalls, can solve problems such as car out-of-control, damage to people and vehicles, etc.

Active Publication Date: 2019-03-08
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

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  • Firewall of a car information system

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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 an 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 the preset security rules, the 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 v...

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Abstract

The invention discloses a firewall for a vehicle-mounted information system. The firewall is composed of a smart phone or an intelligent terminal connected to an external network to form a hardware platform. The firewall is an APP installed on the mobile phone or an intelligent terminal. The only import and export, the data enters the gateway inside the car through the ELM327 connected to the smart phone or terminal, and then enters the gateway inside the car through the OBD‑II connected to the ELM327; then the gateway forwards it to different in-car buses according to the characteristics of the data, and finally enters the corresponding The ECU is executed; illegal data is filtered by the security rules of the firewall and discarded. The firewall of the vehicle on-board information system includes: ELM327, OBD-II, gateway, each ECU, firewall APP. The invention can prevent flood attacks and denial of service attacks through statistical rules. Address filtering can prevent replay attacks.

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 Patents(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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