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Key recovery system

  • US 6,185,308 B1
  • Filed: 03/26/1998
  • Issued: 02/06/2001
  • Est. Priority Date: 07/07/1997
  • Status: Expired due to Fees
First Claim
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1. A key recovery system for storing encrypted data and key recovery information containing a data key for providing said encrypted data, retrieving the data key from the key recovery information, and decrypting the encrypted data, comprising:

  • a recoverer device for providing a recovery request for said data key from a recoverer;

    a key recovery information distribution device for providing a communications line in response to said recovery request; and

    at least one key recovery device, connected to said recovery device through said communications line, for decrypting all or a part of the data key in the key recovery information, authenticating said recoverer by communicating directly with said recoverer device through said communications line or a direct connection line between said recoverer device and said key recovery device, and providing key information corresponding to said data key to said recoverer device.

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