Method and system for authentication of RF device
AssigneeNagravision Sarl
InventorsSinan Ayhan, Joël Conus
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Abstract
The method for authenticating a first device, the method including receiving RF signals from the first device, acquiring feature data from the received RF signals, fitting a model for authenticating the first device using the acquired feature data, storing in memory the fitted model in a second device, and, by the second device receiving a new RF signal from a device to authenticate, acquiring feature data from the new RF signal, and determining whether or not the device to authenticate is the first device by transmitting the feature data, acquired from the new RF signal, as input to the fitted model, the feature data acquired from a RF signal includes values of only one of an in-phase component and a quadrature component of the RF signal over time.
Claims20
A computer-implemented method for authentication of a first device, the method comprising:
- A) receiving a plurality of RF signals from the first device;
- B) acquiring feature data from the received RF signals;
- C) fitting a model for authenticating said first device using the acquired feature data;
- D) storing in memory the fitted model in a second device;
- E) by the second device, receiving a new RF signal from a device to authenticate;
- F) by the second device, acquiring feature data from the new RF signal;
- and
- G) by the second device, determining whether or not the device to authenticate is the first device by transmitting the feature data, acquired from the new RF signal, as input to the fitted model, wherein said authentication is based on only one component of said RF signal acquired over time selected from a group consisting of an in-phase component and a quadrature component so as to reduce amount of data to be processed while providing enhanced device authentication accuracy.
A system for authentication of a first device, the system comprising:
- a second device;
- and
- a third device, wherein
- the third device is configured to:
- receive a plurality of RF signals from the first device,
- acquire feature data from the received RF signals, and
- fit a model for authenticating said first device using the acquired feature data,
- wherein the second device is configured to:
- store in memory the fitted model,
- receive a new RF signal from a device to authenticate,
- acquire feature data from the new RF signal, and
- determine whether or not the device to authenticate is the first device by transmitting the feature data, acquired from the new RF signal, as input to the fitted model, wherein said authentication is based on only one component of said RF signal acquired over time selected from a group consisting of an in-phase component and a quadrature component so as to reduce amount of data to be processed while providing enhanced device authentication accuracy.
A first device for authentication of a second device, the first device comprising
- circuitry configured to:
- receive a plurality of RF signals from the second device,
- acquire feature data from the received RF signals,
- fit a model for authenticating said second device using the acquired feature data,
- store in memory the fitted model,
- receive a new RF signal from a device to authenticate,
- acquire feature data from the new RF signal, and
- determine whether or not the device to authenticate is the second device by transmitting the feature data, acquired from the new RF signal, as input to the fitted model, wherein said authentication is based on only one component of said RF signal acquired over time selected from a group consisting of an in-phase component and a quadrature component so as to reduce amount of data to be processed while providing enhanced device authentication accuracy.
Dependencies are inferred from the claim text.