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Two-phase cryptographic key recovery system

  • US 5,937,066 A
  • Filed: 10/02/1996
  • Issued: 08/10/1999
  • Est. Priority Date: 10/02/1996
  • Status: Expired due to Term
First Claim
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1. A method of providing for the recovery of a secret value using a key recovery agent, comprising the steps of:

  • creating a generator value for said key recovery agent;

    making said generator value available to said key recovery agent;

    generating an encryption key as a one-way function of said generator value; and

    encrypting said secret value with said encryption key to generate an encrypted secret value, said secret value being recoverable from said encrypted secret value by having said key recovery agent generate said encryption key as said one-way function of said generator value and decrypting said encrypted secret value with said encryption key.

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