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An obd interface data security protection system and data security protection method

A security protection and interface data technology, applied in transmission systems, electrical components, etc., can solve problems affecting the safety and reliability of vehicle systems, ECU electronic control unit data confusion, data leakage, etc.

Active Publication Date: 2019-12-31
ZHENGZHOU XINDA JIEAN INFORMATION TECH
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] Many post-installation products with OBD interface on the market currently bring convenience and intuitiveness to users, but also have certain security risks. Basically, they are encrypted in plain text or in a simple way, which can easily lead to data leakage. On the other hand, attackers use the security loopholes in the OBD interface to exchange information with the outside, and use the OBD interface to tamper with the data and send malicious control commands to the in-vehicle gateway. The data of the ECU electronic control unit connected to the gateway in the vehicle is confused, which affects the safety and reliability of the vehicle system

Method used

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  • An obd interface data security protection system and data security protection method

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Embodiment Construction

[0061] The technical solutions of the present invention will be described in further detail below through specific implementation methods.

[0062] Such as figure 1 As shown, an OBD interface data security protection system includes an on-board diagnostic system, an OBD device and an on-board information service platform;

[0063] The on-board diagnostic system includes an in-vehicle gateway, an ECU unit, an OBD protection module, a network communication module and a vehicle-mounted OBD interface, the OBD protection module includes a main control module MCU and a safety module 1, and the ECU unit is connected to the in-vehicle Gateway, the main control module MCU is respectively connected to the gateway in the vehicle, the safety module 1, the network communication module and the vehicle-mounted OBD interface;

[0064] The OBD device includes an OBD interface, a processing module and a security module II, and the security module II is connected to the security module I throug...

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Abstract

The invention provides an OBD interface data security protection system and a data security protection method. The OBD interface data security protection system comprises a vehicular diagnosis system,an OBD device and a vehicular information service platform. The vehicular diagnosis system comprises an OBD protection module and an ECU unit. The method comprises the steps that in an OBD device access phase, the OBD protection module carries out first key negotiation and two-way identity authentication with the OBD device and controls information interaction between the OBD device and the ECU unit; and in an OBD device quit phase or OBD protection module idle phase, the OBD protection module carries out second key negotiation with the vehicular information service platform, the vehicular information service platform carries out double-identity authentication on the OBD protection module and the OBD device, and the OBD protection module uploads the identity information of the OBD deviceand a control or diagnosis instruction to the vehicular information service platform.

Description

technical field [0001] The invention relates to the technical field of on-board equipment safety, in particular to an OBD interface data safety protection system and a data safety protection method. Background technique [0002] With the wide application of vehicle equipment in the automotive industry, the real-time monitoring and maintenance of vehicle failures has become a hot spot for many users. The OBD device communicates with each ECU electronic control unit connected to the gateway in the vehicle through the OBD interface, monitors the working status of each ECU electronic control unit on different buses in the vehicle in real time and performs fault diagnosis, and obtains various working condition data and fault information of the vehicle , for the owner to repair and maintain the vehicle in time. [0003] Many post-installation products with OBD interface on the market currently bring convenience and intuitiveness to users, but also have certain security risks. Ba...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L63/0428H04L63/06H04L63/0823H04L63/0869H04L63/20
Inventor 刘熙胖刘长河李鑫何骏梁松涛李平穆佩红
Owner ZHENGZHOU XINDA JIEAN INFORMATION TECH
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