A cryptographic offline payment system enabling peer-to-peer transactions between devices using public/private key pairs managed by a transaction broker node (financial institution).

Patentradars sammanfattning

This invention discloses a system and method for conducting offline digital payments between a payer device and a payee device using asymmetric cryptography and secure environments. Each device stores signed offline information, offline balances, and unsettled transaction records within a secure enclave, while a transaction broker node (a financial institution) manages public/private key infrastructure and Know Your Customer (KYC) data. Transactions are executed via proximity peer-to-peer technology without requiring a live network connection, with eventual settlement reconciled through the broker node. The architecture addresses the challenge of trusted offline value transfer while maintaining auditability and fraud resistance.

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