System and method for establishing trust without revealing identity
First Claim
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1. A method comprising:
- receiving an authentication request from a challenger device;
sending information to the challenger device from a prover device; and
convincing the challenger device that a valid signature is known by the prover device without revealing the signature to the challenger device.
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Abstract
One aspect of an embodiment of the invention provides a method, system, and device to prove to a challenger that a prover device has a signature from a device manufacturer without revealing the signature to the challenger. According to one implementation, a challenger is provided with the result of a one-way function of a secret held by a prover device. An interactive proof is employed, between the prover device and the challenger, to prove to the challenger that the secret used in the one-way function has been signed by a device signature without revealing the secret or the device signature or the prover device'"'"'s identity to the challenger.
219 Citations
11 Claims
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1. A method comprising:
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receiving an authentication request from a challenger device; sending information to the challenger device from a prover device; and convincing the challenger device that a valid signature is known by the prover device without revealing the signature to the challenger device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A device comprising:
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a communication port; and a processing unit, the processing unit configured to communicate with a challenger platform over the communication port, and convince the challenger platform that the device knows a secret without revealing the identity of the device. - View Dependent Claims (9)
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10. A system comprising:
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a challenger device; and a prover device communicatively coupled to the challenger device, the prover device configured to convince the challenger that the prover device has a valid signature of a known entity without revealing the signature. - View Dependent Claims (11)
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Specification