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Displaying a seeded, continuously updating identifier in a QR code

[Category : - SOFTWARES]
[Viewed 445 times]

A method for displaying a seeded, continuously updating identifier in a QR code and a QR code display and replay attack prevention device that displays a seeded, continuously updating identifier displayed in a QR code are disclosed. This method and QR code display and replay attack prevention device has a changing QR code, preventing replay attacks. The QR code display and replay attack prevention device has a small form factor, is low powered, is inexpensive, and requires no connectivity to the internet.

Patent publications:

 US 10460221
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rctucker (United States)

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