Verification of data packets in motor vehicles

A technology for data packets and motor vehicles, which is applied in data exchange networks, user identity/authority verification, data exchange through path configuration, etc., and can solve problems such as bandwidth improvement.

Pending Publication Date: 2020-05-26
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, encryption results in increased bandwidth required

Method used

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  • Verification of data packets in motor vehicles
  • Verification of data packets in motor vehicles
  • Verification of data packets in motor vehicles

Examples

Experimental program
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Embodiment Construction

[0024] The control unit complex 1 consists of a plurality of electronic control units. Increasingly, each component has control units, in particular engine control units, ABS, window regulators, etc. The control unit has a communication device, whereby the control unit can communicate with other control units, in particular by means of a communication network, preferably a communication bus.

[0025] Which control devices are included in the control device complex depends on the equipment and / or type of drive of the motor vehicle, in particular internal combustion engine, fuel cell engine, hybrid engine, plug-in hybrid engine, electric motor.

[0026] Exemplarily, in figure 1 A part of a control unit complex 1 of an electrically driven motor vehicle is shown in . By way of example, the responsible control devices 5 , 10 , 15 , 20 , 25 of the control device complex 1 are shown. The illustrated control unit shows only an exemplary part of the control unit complex 1 of a motor...

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PUM

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Abstract

Verification of data packets in motor vehicles is disclosed. The invention relates to a method (100) for verifying the authenticity of a data packet, the data packet is exchanged by a member of a communication network (30) of a motor vehicle, in particular a control device (5, 10, 15, 20, 25) via the communication network (30); an authentication controller (50) is provided and is constructed and set up to detect communication via the communication network (30), the method has the following steps: determining (120) identifiers, data, and signatures based on data packets transmitted via the communication network (30), verifying (130) the authenticity of the data packets by checking the signature with the help of a public key, providing (140) the results of the verification, and sending (150)the results in response to a query from a member of the communication network (30).

Description

technical field [0001] The invention includes a method for verifying the authenticity of a data packet transmitted by a member of a communication network of a motor vehicle and a verification controller. Background technique [0002] In the automotive sector, electronic control devices are increasingly used today. These control devices form a control device complex. These control units exchange information, data or signals via a communication bus, for example a CAN bus. Multiple control devices communicate with each other. Some control devices send data packets which are relevant to several other control devices, for example the state of charge is relevant for the inverter and for the motor controller. In order to check for possible unwanted manipulation of a communication, for example possible unwanted falsification of the communication by manipulated information or control commands, it is known to encrypt the communication. However, encryption results in increased band...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32H04L12/40H04L29/06H04L29/08
CPCH04L63/0428H04L9/3247H04L63/12H04L12/40006H04L67/12H04L2012/40273H04L12/40H04L2209/84H04L63/123
Inventor C.布罗克豪斯
Owner ROBERT BOSCH GMBH
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