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System and method for the protection and de-identification of health care data

  • US 9,355,273 B2
  • Filed: 11/27/2007
  • Issued: 05/31/2016
  • Est. Priority Date: 12/18/2006
  • Status: Active Grant
First Claim
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1. A system for protecting and de-identifying healthcare data, the system comprising:

  • one or more computers;

    a first set of non-transitory storage devices storing instructions that are operable, when executed by one or more computers, and causes the one or more computers to perform the steps of;

    retrieving healthcare data and personally identifiable information of a person;

    storing in a second set of non-transitory storage devices, the retrieved healthcare data and personally identifiable information for the person;

    identifying a portion of the stored personally identifiable information from the storage device;

    extracting the identified portion of the personally identifiable information from the storage device;

    encrypting the extracted portion of the personally identifiable information;

    inputting, into a keyed hash function, the encrypted portion of the personally identifiable information;

    generating, by the keyed hash function, a first output;

    inputting the generated first output to a second hash function;

    generating, by the second hash function, a second output;

    generating an anonymous linking code using the second output;

    storing the anonymous linking code in association with the healthcare data for the person.

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