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System and method for secure storage data using a key

  • US 7,434,263 B2
  • Filed: 05/07/2003
  • Issued: 10/07/2008
  • Est. Priority Date: 10/26/1998
  • Status: Expired due to Fees
First Claim
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1. A method, implemented in a system, the method comprising:

  • receiving a block of data, a current operating system identity, and a target operating system identity, wherein the target operating system identity comprises a unique value that represents the identity of the target operating system, the unique value being a digest of both an identity of an initial boot block of the target operating system and an identity of each of one or more loaded operating system components of the target operating system;

    encrypting the block of data using a key;

    subsequently receiving a request to decrypt the encrypted block of data; and

    returning the encrypted block of data to the requester only if the target operating system identity is equal to an operating system identity when the request to decrypt is received.

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