METHOD AND DEVICE FOR IDENTIFYING ABNORMAL MESSAGE

WIPO Patent Application WO/2021/217477

A1

The present application provides a method for identifying an abnormal message, and a method and a device for training an abnormal message identification model. The method of the embodiments of the present application is applicable to the field of automobiles or ships. The method for identifying an abnormal message comprises: a security execution unit (SEU) receiving a first message, and determining a first difference value between a feature value of the first message and a feature value of a second message, the second message being a message received before the first message is received; the SEU determining, from a plurality of preset difference classes, a difference class corresponding to the first difference value, different difference classes in the plurality of difference classes corresponding to different difference value ranges; and the SEU inputting the identifier of the difference class corresponding to the first difference value into a pre-stored abnormal message identification model, so as to determine that the first message is an abnormal message or a non-abnormal message. The present invention facilitates the improvement of the accuracy of identifying an abnormal message on the basis of an abnormal message identification model.

RIEKE ROLAND (DE)
ZELLE DANIEL (DE)
FENZL FLORIAN (DE)
WEI ZHUO (CN)
YASMIN REHANA (CN)

PCT/CN2020/087711

November 04, 2021

April 29, 2020

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HUAWEI TECH CO LTD (CN)
FRAUNHOFER GES FORSCHUNG (DE)

B60R16/023; G06F21/55; H04L12/40

US20160381068A1	2016-12-29
US10419268B2	2019-09-17
CN106170953A	2016-11-30
US20160315958A1	2016-10-27
CN110865626A	2020-03-06
US20170163669A1	2017-06-08

See also references of EP 3979590A4

LONGSUN LEAD IP LTD. (CN)

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