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Information processing apparatus and its control method, computer program, and storage medium

  • US 20020199106A1
  • Filed: 02/08/2002
  • Published: 12/26/2002
  • Est. Priority Date: 02/09/2001
  • Status: Active Grant
First Claim
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1. An information processing apparatus for embedding authentication information into digital information, comprising:

  • means for generating authentication information on the basis of the digital information to which the authentication information is to be embedded; and

    digital watermarking means for embedding the generated authentication information into the digital information with the digital information being exactly restorable.

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