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Apparatus and method for data capsule generation

  • US 6,336,189 B1
  • Filed: 07/06/1998
  • Issued: 01/01/2002
  • Est. Priority Date: 07/10/1997
  • Status: Expired due to Term
First Claim
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1. A data capsule comprising:

  • data;

    verification means for verifying a verification result by a one-way function from proof data generated and sent by a proving device external to the data capsule, wherein the one-way function generates values by using a random number generated for each verification result; and

    usage control means for controlling use of the data based on the verification result provided by the verification means.

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