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Method and apparatus for encrypting and recording received content information on a recording medium using both medium identification information and a cipher key for encryption

  • US 6,778,969 B2
  • Filed: 06/22/2001
  • Issued: 08/17/2004
  • Est. Priority Date: 10/09/1995
  • Status: Expired due to Term
First Claim
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1. A content recording method using a communication means comprising:

  • reading, from a recording medium, identification information unique to that recording medium, receiving through the communication means permission information for permitting recording of content on that recording medium, confirming validity of the permission information, receiving content information through the communication means, encrypting the received content information using both the identification information unique to the recording medium and a cipher key, and recording the encrypted content information on the recording medium based on the result of said confirming.

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