Proximity authentication protocol
First Claim
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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:
- transmitting, from the second device, a first device selection requirement;
transmitting, from the first device to the second device, first device authentication information, over the communication channel when the first device meets the first device selection requirement;
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;
transmitting the acoustic authentication signal to the second device via the solid body acoustic coupling thereby providing proof of proximity between both devices; and
determining, at the second device, that the first device authentication information received over the communication channel corresponds to the acoustic authentication signal received via the solid body acoustic coupling, in order to authenticate 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.
13 Citations
15 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:
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transmitting, from the second device, a first device selection requirement; transmitting, from the first device to the second device, first device authentication information, over the communication channel when the first device meets the first device selection requirement; 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; transmitting the acoustic authentication signal to the second device via the solid body acoustic coupling thereby providing proof of proximity between both devices; and determining, at the second device, that the first device authentication information received over the communication channel corresponds to the acoustic authentication signal received via the solid body acoustic coupling, in order to authenticate the communication channel between the first device and the second device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. 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:
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transmitting, from the second device, a first device selection requirement; receiving, at the second device, first device authentication information transmitted by the first device over the communication channel when the first device meets the first device selection requirement; 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 determining, at the second device, that the first device authentication information received over the communication channel corresponds to the acoustic authentication signal received via the solid body acoustic coupling, in order to authenticate the communication channel between the first device and the second device.
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Specification