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Digital rights management

  • US 7,210,039 B2
  • Filed: 09/14/2001
  • Issued: 04/24/2007
  • Est. Priority Date: 09/14/2000
  • Status: Expired due to Term
First Claim
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1. A data entity comprising first encrypted data decodable only by a first local application located at a first client machine, second encrypted data usable, in decrypted form, by the first application or a second local application, that is one of a specified list of trusted applications, that can be decrypted using authorisation data received from a remote licensing server, located at the first client machine only after the first encrypted data has been decoded, the second encrypted data representing encrypted digital content.

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