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US 2026/0142815 A1Published application
Distributed state machine using cryptographic nonce
AssigneeCapital One Services, LLC
InventorsKevin Osborn, John Jones, Nitesh Rijal
Life of this patent
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Abstract
An applet executing on a processor of a contactless card may receive, from a device, a message comprising a nonce. The applet may determine a first portion of the nonce associated with a state message. The applet may perform, based on the first portion of the nonce, an operation associated with the state message.
Claims20
A method, comprising:
- receiving, by an applet executing on a processor of a contactless card and from a device, a message comprising a nonce;
- determining, by the applet, a first portion of the nonce associated with a state message;
- and
- performing, by the applet based on the first portion of the nonce, an operation associated with the state message.
1 more element
A method, comprising:
- determining, by a processor of computing system, one or more values associated with a state operation for a contactless card;
- generating, by the processor based on a randomization function, a randomization value;
- generating a nonce value using the randomization value and the one or more values associated with the state operation;
- and
- generating, by the processor, a message comprising the nonce value.
2 more elements
A contactless card, comprising:
- a processor;
- and
- a memory storing instructions that, when executed by the processor, cause the processor to:
- receive, from a device, a message comprising a nonce;
- determine a first portion of the nonce associated with a state message;
- and
- perform, based on the first portion of the nonce, an operation associated with the state message.
4 more elements
Dependencies are inferred from the claim text.