Providing position data by means of a distance-bounding protocol
US9648453B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 23, 2014 |
| Grant date | May 9, 2017 |
| Priority date | — |
| Expiry date | Apr 10, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W64/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method is proposed for providing position data for a chip card having portions for receiving or detecting position data of a localization unit by the localization unit, wherein the localization unit is spatially separate from the chip card; transmitting the position data from the localization unit to the chip card via a contactless interface with use of a cryptographic protocol; executing a distance-bounding protocol between the chip card and the localization unit, wherein the distance-bounding protocol then concludes successfully precisely when the spatial distance between the chip card and localization unit does not exceed a predefined maximum distance; and executing a chip card function with successful conclusion of the distance-bounding protocol, wherein the chip card function uses the transmitted position data as position data specifying the current position of the chip card.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.