| 摘要 |
A system for authenticating near field communication (NFC) transactions that has an NFC merchant reader that provides an electromagnetic field and an NFC hand-held device that senses the electromagnetic field and prompts a user for a personal identifier (PI) in response to the electromagnetic field. Additionally, the NFC hand-held device wirelessly transmits the PI, and the NFC hand-held-device receives an approval code transmitted to the NFC hand-held device in response to the PI. Further, the NFC hand-held device transmits the approval code to the NFC merchant reader, and the NFC merchant reader transmits a payment request comprising the approval code.
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