Proximity Authentication Protocol
First Claim
1. A machine implemented method of authenticating a communication channel between a first device and a second device by providing proof of proximity between both devices, the method comprising:
- generating, at the first device, an acoustic authentication signal to be received at the second device via a solid body acoustic coupling established between the first device and the second device thereby providing proof of proximity between both devices and so authenticating the communication channel between the first device and the second device.
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Abstract
A machine implemented method of authenticating a communication channel between a first device and a second device by providing proof of proximity between both devices, the method comprising: generating, at the first device, an acoustic authentication signal to be received at the second device via a solid body acoustic coupling established between the first device and the second device thereby providing proof of proximity between both devices and so authenticating the communication channel between the first device and the second device.
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Citations
11 Claims
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1. A machine implemented method of authenticating a communication channel between a first device and a second device by providing proof of proximity between both devices, the method comprising:
generating, at the first device, an acoustic authentication signal to be received at the second device via a solid body acoustic coupling established between the first device and the second device thereby providing proof of proximity between both devices and so authenticating the communication channel between the first device and the second device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A machine implemented method of authenticating a communication channel between a first device and a second device by providing proof of proximity between both devices, the method comprising:
receiving, at the second device, an acoustic authentication signal transmitted by the first device via a solid body acoustic coupling established between the first device and the second device thereby providing proof of proximity between both devices and so authenticating the communication channel between the first device and the second device.
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10. A machine implemented method of identifying a first device by a second device to establish a communication channel by providing proof of proximity between both devices, the method comprising:
generating, at the first device, an acoustic authentication signal to be received at the second device via a solid body acoustic coupling established between the first device and the second device thereby providing proof of proximity between both devices and where the acoustic authentication signal is used by the second device to identify the first device to establish the communication channel.
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11. Apparatus comprising acoustic authentication signal generation circuitry connected to a waveguide having an output capable of transmitting, via a solid body acoustic coupling, an acoustic authentication signal to a proximate device thereby providing proof of proximity between the apparatus and the device and so authenticating a communication channel between the apparatus and the device.
Specification