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Recovery of encrypted data from a secure storage device

  • US 8,438,647 B2
  • Filed: 09/19/2006
  • Issued: 05/07/2013
  • Est. Priority Date: 07/14/2005
  • Status: Active Grant
First Claim
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1. A method for recovering encrypted data from a target portable secure storage device having a user interface for receiving a user code to access the encrypted data, the method comprising:

  • coupling the target portable secure storage device to a recovery module;

    receiving a recovery request to recover the encrypted data when the user code is unavailable from the user interface;

    sending a transfer command to the target portable secure storage device;

    receiving an authorization request from the target portable secure storage device in response to the transfer command;

    responding to the authorization request with an authorization response;

    authenticating the authorization response without verifying the user code;

    receiving the encrypted data from the target portable secure storage device;

    coupling a plurality of authorized secure storage devices to the recovery module;

    retrieving a plurality of encryption keys from the plurality of authorized secure storage devices;

    unlocking a decryption key with the plurality of encryption keys; and

    decrypting the encrypted data with the decryption key.

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