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Information processing apparatus, information processing method, and providing medium

  • US 20060259432A1
  • Filed: 07/17/2006
  • Published: 11/16/2006
  • Est. Priority Date: 04/09/1999
  • Status: Abandoned Application
First Claim
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1. An information processing apparatus which is connected to other information processing apparatuses and which purchases rights to decrypt and use encrypted information, characterized by comprising:

  • first preparation means for preparing first usage control status which identifies first usage details describing purchased rights and the pricing details corresponding to said first usage details;

    storage means for storing said encrypted information, said first usage control status, a usage control policy that contains a second use type that describes the rights that can be purchased again based on the details of said purchased rights, price tags that contain the pricing details corresponding to said second usage details, and the key needed to decrypt said encrypted information;

    second preparation means for preparing second usage control status that identifies said second usage details and said pricing details corresponding to said second usage details, based on said usage control policy and said price tags, when rights are purchased again through said other information processing apparatuses; and

    sending means for sending said second usage control status prepared by said second preparation means as well as said encrypted information and said key stored on said storage means to said other information processing apparatuses.

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