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Authentication system, authentication server, and sub-authentication server

  • US 8,782,760 B2
  • Filed: 04/21/2011
  • Issued: 07/15/2014
  • Est. Priority Date: 10/23/2008
  • Status: Active Grant
First Claim
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1. An authentication system, comprising:

  • an authentication server comprising a memory that stores authentication information to be used for authentication and a processor coupled to the memory of the authentication server;

    a plurality of sub-authentication server comprising a memory and a processor coupled to the memory of the sub-authentication server;

    a terminal comprising a memory and a processor coupled to the memory of the terminal, anda management terminal comprising a memory and a processor coupled to the memory, whereinthe processor of the authentication server executes a process comprisingverifying, when receiving an authentication request which is to request to authenticate biometric information of a user using the terminal, the authentication information to authenticate the transmission origin of the authentication request using the authentication information for each sub-authentication server, when receiving the authentication request,selecting the sub-authentication server where a degree of similarity calculated as a verification result becomes a predetermined threshold value or less, andtransmitting authentication information used to authenticate a transmission origin of the authentication request, to selected one of the plurality of sub-authentication server,the processor of the authentication server and/or the processor of the sub-authentication server executes a process comprising transmitting identification information to identify the sub-authentication server to which the authentication information is transmitted by the authentication server, to the terminal that transmits the authentication request,the memory of the terminalstores identification information to identify a transmission destination of the authentication request;

    the processor of the terminal executes a process comprisingtransmitting the authentication request to a transmission destination identified with the identification information stored by the memory of the terminal; and

    updating the identification information stored in the memory of the terminal using the identification information, when receiving the identification information, andthe memory of the sub-authentication serverstores the authentication information transmitted from the authentication server to the sub-authentication server,the processor of the sub-authentication server executes a process comprising authenticating the transmission origin of the authentication request using the authentication information stored in the memory of the sub-authentication server, when receiving the authentication request, andthe processor of the authentication server and/or the management terminal further executes a process comprisingdeleting a part of the authentication information stored by the memory of the sub-authentication server with respect to the sub-authentication server where the frequency of performing the authentication is high as compared with the other sub-authentication servers,storing the authentication information deleted in the memory of the sub-authentication server;

    with respect to the sub-authentication server where the frequency of performing the authentication is low as compared with the other sub-authentication servers, andtransmitting identification information to identify the sub-authentication server becoming the storage destination where the authentication information is stored, to the transmission origin authenticated using the authentication information deleted.

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