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RELAY DEVICE, WIRELESS COMMUNICATIONS DEVICE, NETWORK SYSTEM, PROGRAM STORAGE MEDIUM, AND METHOD

  • US 20120030466A1
  • Filed: 07/25/2011
  • Published: 02/02/2012
  • Est. Priority Date: 07/29/2010
  • Status: Active Grant
First Claim
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1. A relay device for carrying out wireless communications with a wireless communications device via a communications interface, the relay device comprising:

  • a memory unit storing a plurality of authentication data for determining whether request-authentication data received from the wireless communications device requesting relayed communications with another communications device is valid;

    an authentication data updating section for updating current-generation authentication data, and storing, in the memory unit, the updated current-generation authentication data as latest authentication data and storing authentication data at least one generation earlier than the updated current-generation authentication data as former authentication data;

    a latest authentication data determination section for using the latest authentication data to determine whether the request-authentication data received from the wireless communications device is valid;

    a relay control section for executing the requested relayed communications if the latest authentication data determination section has determined that the request-authentication data is valid;

    a former authentication data determination section for using the former authentication data to determine whether the request-authentication data is valid if the latest authentication data determination section has determined that the request-authentication data is invalid; and

    an authentication data provision section for providing the latest authentication data to the wireless communications device if the former authentication data determination section has determined that the request-authentication data is valid.

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