Apparatus and method for secure data storage

  • US 7,069,447 B1
  • Filed: 05/10/2002
  • Issued: 06/27/2006
  • Est. Priority Date: 05/11/2001
  • Status: Active Grant
First Claim
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1. A secure mass data storage device operable in conjunction with a host computer, comprising:

  • a mass storage media;

    a command/sector buffer in cyphertext control communication and cyphertext data communication with the mass storage media;

    an encryption/decryption unit in control communication and data communication with the command/sector buffer;

    a user authentication unit operable to provide a cryptokey and in cryptokey communication to the encryption/decryption unit;

    a media controller in plaintext control communication and plaintext data communication with the command/sector buffer; and

    a host computer interface in plaintext control communication and plaintext data communication with the media controller, wherein the cryptokey communication of the user authentication unit to the encryption/decryption unit does not pass through the host computer interface.

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