AUTHENTICATING A DEVICE AND A USER
First Claim
1. A method of authenticating a device (10) and a user (20) comprising:
- receiving a user input (28, 34),generating a first key (40) from the user input (28, 34),performing a physical measurement (36) of the device (10),obtaining helper data (42) for the device (10),computing a second key (44) from the physical measurement (36) and the helper data (44), andperforming an operation (46) using the first and second keys (40, 44).
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Accused Products
Abstract
A method of authenticating a device and a user comprises receiving a user input, generating a first key from the user input, performing a physical measurement of the device, obtaining helper data for the device, computing a second key from the physical measurement and the helper data, and performing an operation using the first and second keys. In a preferred embodiment, the method comprises performing a defined function on the first and second keys to obtain a third key. Additionally security can be provided by the step of receiving a user input comprising performing a biometric measurement of the user and the step of generating a first key from the user input comprises obtaining helper data for the user and computing the first key from the biometric measurement and the user helper data.
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Citations
18 Claims
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1. A method of authenticating a device (10) and a user (20) comprising:
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receiving a user input (28, 34), generating a first key (40) from the user input (28, 34), performing a physical measurement (36) of the device (10), obtaining helper data (42) for the device (10), computing a second key (44) from the physical measurement (36) and the helper data (44), and performing an operation (46) using the first and second keys (40, 44). - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for authenticating a device (10) and a user (20) comprising:
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a user interface (32) arranged to receive a user input (28, 34), a query component arranged to perform a physical measurement (36) of the device (10), and a processing component (30) connected to the user interface (32) and the query component, and arranged to generate a first key (40) from the user input (28, 34), to obtain helper data (42) for the device (10), to compute a second key (44) from the physical measurement (36) and the helper data (42), and to perform an operation (46) using the first and second keys (40, 44). - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A method of registering a device (10) and a user (20) comprising:
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receiving a user input (28, 34), generating a first key (40) from the user input (28, 34), performing a physical measurement (36) of the device (10), generating a second key (44) and helper data (42) for the device (10) from the physical measurement (36), performing an operation (46) using the first and second keys (42, 44), and transmitting an output of the operation (46) to a remote data store. - View Dependent Claims (16)
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17. A system for registering a device (10) and a user (20) comprising:
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a user interface (32) arranged to receive a user input (28, 34), a query component arranged to perform a physical measurement (36) of the device (10), and a processing component (30) arranged to generate a first key (40) from the user input (28, 34), to generate a second key (44) and helper data (42) for the device (10) from the physical measurement (36), to perform an operation (46) using the first and second keys (40, 44), and to transmit an output of the operation (46) to a remote data store. - View Dependent Claims (18)
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Specification