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Differential data privacy

  • US 20070143289A1
  • Filed: 12/16/2005
  • Published: 06/21/2007
  • Est. Priority Date: 12/16/2005
  • Status: Active Grant
First Claim
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1. A method for controlling privacy loss of a privacy principal, comprising:

  • determining first information that would be available to an adversary with access to a database query output, said database not containing data associated with the privacy principal;

    determining second information that would be available to said adversary with access to a second database query output, said second database containing data associated with the privacy principal; and

    determining a distribution of noise values to combine with a database query output such that said second information differs from said first information by an amount associated with a privacy parameter.

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