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Releasing decrypted digital content to an authenticated path

  • US 7,353,209 B1
  • Filed: 03/15/2000
  • Issued: 04/01/2008
  • Est. Priority Date: 01/14/2000
  • Status: Expired due to Fees
First Claim
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1. A method for releasing digital content to a rendering application, the rendering application for forwarding the digital content to an ultimate destination by way of a path therebetween, the path being defined by at least one module, the digital content initially being in an encrypted form, the method comprising:

  • performing an authentication of at least a portion of the path to determine whether each defining module thereof is to be trusted to appropriately handle the digital content passing therethrough;

    decrypting the encrypted digital content if in fact each such defining module is to be trusted; and

    forwarding the decrypted digital content to the rendering application for further forwarding to the ultimate destination by way of the authenticated path,wherein performing the authentication comprises;

    traversing the at least a portion of the path to develop a map of each module in the path; and

    authenticating each module in the map, andwherein performing the authentication comprises, for each module in the at least a portion of the path;

    receiving from the module a certificate as issued by a certifying authority;

    determining from the received certificate whether such received certificate is acceptable for purposes of authenticating the module;

    checking a revocation list to ensure that the received certificate has not been revoked; and

    refusing to decrypt the encrypted digital content if at least one module in the at least a portion of the path fails to provide an acceptable certificate.

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