Replay attack detection
US11941954B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2023 |
| Grant date | Mar 26, 2024 |
| Priority date | — |
| Expiry date | Jan 31, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F19/209
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Images captured for components of a device are monitored for changes by evaluating a first region of interest in the images. Periodically, a command is sent to the device to move one or more of the components to a known position or state. A certain component or set of components associated with being moved based on the command is evaluated in a second region of interest in the images to determine if the corresponding component or set of components is in the known position or state within the images. When the corresponding component or set of components is not identified from the images in the known position or state, a security alert is raised for the device and security operations are processed on the host device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.