Patent ID: 9510192
Filing Date: 2016-11-29
CPC Classification: H04L,H04W

Claim Text:
1. An authentication device for securing interaction of a user with a computer based application comprising: a memory component adapted to store a secret key; a data processing component adapted to generate a dynamic credential by cryptographically combining said secret key with the value of a dynamic variable; a Near-Field Communication (NFC) interface to couple the authentication device to an NFC transfer device; and a user input interface configured to capture an input from said user; the authentication device adapted to: present itself to said NFC transfer device as an NFC tag; make said generated dynamic credential available to said NFC transfer device by including said dynamic credential in first data contents of said NFC tag that can be read by said NFC transfer device using NFC mechanisms for reading data contents of NFC tags; and require a specific input from said user through the user input interface as a condition for at least one of said authentication device presenting itself to said NFC transfer device as an NFC tag or said data processing component generating said dynamic credential or said authentication device making said generated dynamic credential available to said NFC transfer device.