Privacy in network traces
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PRIVACY IN NETWORK TRACES. Ilya Mironov Microsoft Research (Silicon Valley Campus). Anonymity vs Privacy. Anonymity = identity protection Privacy – much, much more. — Everyone of you has watched “Titanic”!. Personally Identifiable Information. “Golden Standard” of privacy reviews

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PRIVACY IN NETWORK TRACES

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Privacy in network traces

PRIVACY IN NETWORK TRACES

Ilya Mironov Microsoft Research (Silicon Valley Campus)


Privacy in network traces

  • Anonymity vs Privacy

Anonymity = identity protection

Privacy – much, much more

— Everyone of you has watched “Titanic”!


Privacy in network traces

  • Personally Identifiable Information

  • “Golden Standard” of privacy reviews

  • Language of many laws (e.g., HIPAA)


Privacy in network traces

  • Personally Identifiable Information

PII =


Privacy in network traces

  • Everything is PII

[Narayanan & Shmatikov, Oakland 2008]


Privacy in network traces

  • Sanitization

Safe to release

- Inadequate privacy

- Loss of utility

[Dinur & Nissim, PODS 2003]


Privacy in network traces

  • Our vision: Differential privacy

q

r'

q

r

  • Interactive access

  • Precise and general guarantees

  • Randomized responses

[Dwork, ICALP 2006]


Privacy in network traces

  • Privacy budget

q

r'

q

r

privacy


Privacy in network traces

  • PINQ

LINQ: C#-based data access language

PINQ: LINQ with privacy guarantees

Population density:

[McSherry, 2008]


Privacy in network traces

  • More information

Microsoft Research (Silicon Valley Campus) project:

http://research.microsoft.com/research/sv/DatabasePrivacy/


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