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Data sharing

  • US 7,596,570 B1
  • Filed: 11/04/2004
  • Issued: 09/29/2009
  • Est. Priority Date: 11/04/2003
  • Status: Active Grant
First Claim
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1. A method for detecting a shared data element, comprising:

  • providing a first feature of a first data element associated with a first storage device;

    detecting a second feature of a second data element associated with a second storage device,wherein the second feature is the same as the first feature;

    providing a challenge to a remote device associated with the second storage device;

    receiving a response to the challenge;

    calculating a correct response, wherein calculating the correct response includes calculating a hash;

    determining whether the response is acceptable, wherein determining whether the response is acceptable includes determining whether the response is compatible with the correct response; and

    generating a reference to the first data element when it is determined that the response is acceptable.

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