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Conditional access via secure logging with simplified key management

  • US 6,738,905 B1
  • Filed: 04/14/1999
  • Issued: 05/18/2004
  • Est. Priority Date: 04/15/1998
  • Status: Active Grant
First Claim
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1. A method of distributing content data from a content provider device to a subscriber, the content provider device including an encryption device, the subscriber having a set top box including a decryption device, the method comprising the steps of:

  • encrypting content using the encryption device;

    distributing the encrypted content from the content provider to the subscriber;

    distributing keys, for decrypting the encrypted content, from the content provider to a service provider;

    distributing the keys from the service provider to the subscriber; and

    accessing the content by decrypting the content using the decryption device, capable of decrypting content from several different content provider devices, wherein the keys are distributed to the subscriber temporally independent of the distribution of the content to the subscriber.

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