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Cryptographic key construct

  • US 7,739,501 B2
  • Filed: 07/29/2005
  • Issued: 06/15/2010
  • Est. Priority Date: 07/29/2004
  • Status: Active Grant
First Claim
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1. A computer program product residing on a computer-readable storage medium and comprising computer-readable instructions configured to cause a computer to:

  • use a first one-way, forward-recursive function to produce a first sequence of forward cryptographic base values;

    use a second one-way, backward-recursive function to produce a second sequence of backward cryptographic base values; and

    combine corresponding forward and backward cryptographic base values to produce a third sequence of cryptographic keys.

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