Analog waveform monitoring for real-time device authentication
US11757858B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2020 |
| Grant date | Sep 12, 2023 |
| Priority date | — |
| Expiry date | Jul 20, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/4028
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method that includes operating a bus monitoring system having at least one interface configured to be coupled to at least one communication bus and receive bus traffic transmitted over the communication bus(es). The method also includes, using a device authentication system of the bus monitoring system, analyzing the bus traffic received via the at least one interface. Analyzing the bus traffic includes obtaining a message in the bus traffic (where the message identifies a source), identifying a support vector machine that corresponds to the source of the message, applying a wave transform to a waveform of the received message in order to generate a transformed waveform, inputting the transformed waveform to the identified support vector machine, and taking action in response to the identified support vector machine determining that the transformed waveform or the associated information does not correspond to the source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.