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Method and apparatus for generating rights object by means of delegation of authority

  • US 20070198434A1
  • Filed: 01/08/2007
  • Published: 08/23/2007
  • Est. Priority Date: 02/06/2006
  • Status: Abandoned Application
First Claim
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1. A method of transmitting authorization signature information, the method comprising:

  • authenticating a device;

    transmitting to the device a first rights object required to use a certain content; and

    transmitting to the device the authorization signature information required to convert the first rights object to a second rights object.

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