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Apparatus and method for controlling data access using encrypted link position information

  • US 7,127,580 B2
  • Filed: 09/27/2002
  • Issued: 10/24/2006
  • Est. Priority Date: 09/28/2001
  • Status: Expired due to Fees
First Claim
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1. An access restriction apparatus for restricting a terminal accessing managed management information, said access restriction apparatus comprising:

  • supply means for supplying said terminal with link position information indicating a linking destination of said management information, said link position information being at least partially encrypted; and

    access management means for managing access of said terminal to said management information based on said link position information decoded by said terminal, andwherein said management information includes a plurality of pages and said link position information is operable to control access to one or more of the plurality of pages based on an access authority set in said terminal and an attribute indicating whether to permit access.

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