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Lightweight authentication of information

  • US 20050091545A1
  • Filed: 02/24/2003
  • Published: 04/28/2005
  • Est. Priority Date: 03/04/2002
  • Status: Abandoned Application
First Claim
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1. An information authentication method for authenticating items of information, said items of information containing lightweight authentication data relating to others of the items of information, and at least one or more of said items of information containing heavyweight authentication data respectively relating to themselves, the method comprising the steps of:

  • a) authenticating a first one of the items of information which contains heavyweight authentication data using said heavyweight authentication data;

    b) authenticating another one of the items of information using the lightweight authentication data contained within the first item of information; and

    c) iteratively repeating step b) using lightweight authentication data from the item of information which was authenticated in the previous iteration so as to authenticate one or more further of the items of information.

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