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System and method for privacy preserving query verification

  • US 7,979,711 B2
  • Filed: 08/08/2007
  • Issued: 07/12/2011
  • Est. Priority Date: 08/08/2007
  • Status: Expired due to Fees
First Claim
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1. A method for proving the correctness of a query result produced by a data publisher while preserving data privacy, the method comprising:

  • delivering a public key of a public key/private key pair from a data owner to a client;

    delivering data and cryptographic metadata to at least one data publisher, wherein the metadata is associated both with the data and the public key of the public key/private key pair;

    receiving a query from the client;

    returning a query result and a verification object from the data publisher to the client in response to the query; and

    verifying the correctness of the query result, wherein the correctness of the query result is verified utilizing the verification object and the public key.

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