Method and device for fingerprinting of wireless communication devices
US9462449B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2011 |
| Grant date | Oct 4, 2016 |
| Priority date | — |
| Expiry date | Nov 23, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/79
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for fingerprinting wireless devices and a method for using a device fingerprint for identifying wireless devices. A monitoring station listens to a channel. For each received frame, the station measures the inter-arrival time from the end of the previously received frame to the end of the present frame, If possible, the station obtains the identity of the sender of the frame. If the sender is known, then the station stores the inter-arrival time in a histogram for the sender; the histogram becomes the fingerprint for the sender. Identification of a device begins by obtaining a number of inter-arrival times for an unknown sender and then matching these to stored fingerprints using a suitable similarity measure. The invention is particularly suitable for IEEE 802.11 and may for example be used to detect so-called MAC spoofing and as an additional layer of an identification protocol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.