Patent ID: 9256723
Filing Date: 2016-02-09
CPC Classification: G06F

Claim Text:
1. A security key device communicating with an authentication device within a security domain, a security service device and a one time password (OTP) authentication server over a network, and managing access to the security domain, the security key device comprising: an interface unit configured to provide an interface with the authentication device installed at the security domain; an module configured to communicate with the authentication device through the interface unit, wherein the OTP module comprises wherein the authentication device transmits a first OTP authentication request message that includes the OTP and the security key identification information to the security service device; the security service device requests the OTP authentication server to authenticate the OTP generated by the security key device when a holder associated with the security key device is registered to have access to the security domain based on the security key identification information, and retrieves in its storage a corresponding OTP seed ID and Algorithm ID, generates a second OTP authentication request message including the OTP generated by the security key device, the retrieved corresponding OTP seed ID and algorithm id, transmitted to the OTP authentication server; the OTP authentication server generates from the second OTP authentication request message a second OTP, determines whether the second OTP matches the OTP generated by the security key device and sends an authentication result to the authentication device through the first security device, the authentication device granting or denying the holder of the security key device access to the security domain based on the authentication result.