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DTSTART:20190331T030000
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DTSTAMP:20260404T015955Z
UID:5c265504e79d2165491984@ist.ac.at
DTSTART:20190123T100000
DTEND:20190123T110000
DESCRIPTION:Speaker: Esfandiar Mohammadi\nhosted by Krzysztof Pietrzak\nAbs
 tract: Privacy-enhancing systems have to strike a careful balance between 
 a system's utility (i.e.\, its specified goal) and its degree of privacy p
 rotection. To achieve this utility-privacy balance\, a rich body of work a
 ims at tightly quantifying the degree of privacy protection\, in particula
 r under a continual usage of the system\, which in many cases leads to a s
 teady decline of the degree of privacy. Precisely quantifying this decline
  in privacy has proven to be a hard problem but is vital for a practical p
 rivacy assessment and thus for finding a system's utility-privacy balance.
  My research tackles both sides of the utility-privacy balance. First\, I 
 will talk about our recent method for quantifying the decline in privacy: 
 we provably compute upper and lower bounds for the decline in privacy over
  a growing exposure for a large class of privacy-enhancing systems. Second
 \, using this method\, I will show how to tightly quantify the privacy dec
 line caused by timing delays of a browser extension for deniable uploads a
 nd downloads\, a system that we recently designed\, implemented\, and prov
 ed secure.
LOCATION:Mondi Seminar Room 2\, Central Building\, ISTA
ORGANIZER:tguggenb@ist.ac.at
SUMMARY:Esfandiar Mohammadi: The Utility Cost of Privacy
URL:https://talks-calendar.ista.ac.at/events/1717
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