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Methods and apparatus for persistent control and protection of content

  • US 7,233,948 B1
  • Filed: 03/25/1999
  • Issued: 06/19/2007
  • Est. Priority Date: 03/16/1998
  • Status: Expired due to Term
First Claim
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1. A streaming media player providing content protection and digital rights management, including:

  • a port configured to receive a digital bit stream, the digital bit stream including;

    content which is encrypted at least in part, anda secure container including control information for controlling use of the content, including at least one key suitable for decryption of at least a portion of the content; and

    a control arrangement including;

    means for opening secure containers and extracting cryptographic keys, and means for decrypting the encrypted portion of the content, andmeans for managing access to, or use of, said content in accordance with said control information.

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