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System and method for controlling communication using device ID

  • US 20040233897A1
  • Filed: 04/16/2004
  • Published: 11/25/2004
  • Est. Priority Date: 04/18/2003
  • Status: Active Grant
First Claim
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1. A communication management system comprising:

  • a terminal of a user;

    an authentication server which authenticates the terminal; and

    a management server which manages network address which uniquely identifies the terminal on a network, the terminal comprising;

    a holding unit which holds a device ID which is specifically assigned to the terminal in such a manner as to uniquely identify the terminal;

    an authentication request unit which reads the device ID from the holding unit, and sends the device ID to the authentication server to make a request for authentication;

    a certificate acquisition unit which acquires a certificate, which certifies success in the authentication, from the authentication server; and

    a registration request unit which sends the certificate to the management server, to make a request for registration of the network address, which is assigned to the own terminal, the authentication server comprising;

    an authentication reception unit which acquires the device ID from the terminal and receives the request for the authentication;

    an authentication unit which authenticates the correctness of the device ID of the terminal; and

    a certificate issue unit which issues a certificate when succeeding in the authentication of the terminal, the management server comprising;

    a database which holds an ID which uniquely identifies the terminal, and the network address in a manner that they are associated with each other;

    a registration reception unit which acquires the certificate from the terminal, and receives the request for registration of the network address of the terminal;

    a registration unit which verifies the correctness of the certificate, and registers the ID and the network address of the terminal in the database when the certificate is confirmed to be correct;

    an inquiry reception unit which receives the request for inquiring the network address of the terminal;

    a search unit which searches through the database on the basis of the ID of the terminal as the target of an inquiry, to acquire the network address of the terminal; and

    an answer unit which answers search result.

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