AUTHENTICATION METHOD, AUTHENTICATION SYSTEM, IN-VEHICLE DEVICE, AND AUTHENTICATION APPARATUS

  • US 20100241857A1
  • Filed: 11/13/2008
  • Published: 09/23/2010
  • Est. Priority Date: 11/16/2007
  • Status: Active Grant
First Claim
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1. An authentication method for authenticating a communication device and a portable terminal device with each other by exchanging an authentication key on connecting the communication device and the portable terminal device via communication, the method comprising:

  • generating the authentication key by the communication device;

    displaying on a display unit by the communication device, a two-dimensional code including the authentication key generated in the generating;

    acquiring the authentication key from the two-dimensional code by reading the two-dimensional code via an imaging unit of the portable terminal device; and

    transmitting the authentication key acquired in the acquiring by the portable terminal device to the communication device.

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