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US 11,962,688 B2Granted
Quantum tokens
AssigneesQuantinuum LLC, Adrian Kent
InventorAdrian Kent
Life of this patent
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Abstract
Secure, semi-classical authentication schemes are presented. An authentication token is generated by applying a pre-determined measurement to a plurality of random quantum states to obtain a sequence of classical measurement outcomes. The token is validated by receiving the classical measurement outcomes and verifying whether the sequence corresponds to a statistically plausible result for the pre-determined measurement of the plurality of quantum states.
Claims11
An agency system comprising:
- a first agent quantum device that generates, at a first space-time point, a plurality of random quantum states, each of the plurality of random quantum states chosen from a set of non-orthogonal quantum states;
- and
- a second agent measurement apparatus at a second space-time point, wherein the second agent measurement apparatus applies a pre-determined measurement associated with the second space-time point to the plurality of random quantum states to generate measurement outcomes and determine whether the measurement outcomes correspond to a statistically plausible result for the pre-determined measurement;
- wherein the pre-determined measurement generates a valid token in the second space-time point.
1 more element
Dependencies are inferred from the claim text.