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SUMMARY:Security and Privacy for Personal Data
DTSTART:20190709T140000
DTEND:20190709T160000
DTSTAMP:20260407T111339Z
UID:5b76bac52912daaf96bf580bd5922abf7f6dc1ac23ae3564357d21ed
CATEGORIES:Conferences - Seminars
DESCRIPTION:Sylvain Chatel\nEDIC candidacy exam\nExam president: Prof. Car
 mela Troncoso\nThesis advisor: Prof. Jean-Pierre Hubaux\nCo-examiner: Prof
 . Bryan Ford\n\nAbstract\nIn our hyper-connected world\, large amount of i
 nformation is collected and processed. By harvesting data and conducting s
 mart analysis\, service providers can provide better utility to users and 
 tailor their offers. However\, this could lead to massive privacy leaks. F
 or instance\,  several activity-tracking services - collecting informatio
 n through wearable devices -  are raising security and privacy concerns. 
 Henceforth\, it is of paramount importance to keep control over personal d
 ata shared and reduce the amount of data distributed without damaging the 
 utility. Several works have been conducted in this direction. A particular
 ly interesting topic is homomorphic encryption which allows to conduct som
 e operations on encrypted data. This enables analysis on the data without 
 revealing any information to the service provider. For instance CKKS [Cheo
 n16'] introduced a new method for homomorphic encryption that allows somew
 hat homomorphic encryption and complex operations such as polynomial evalu
 ations. Another interesting topic is zero-knowledge proofs that permits tr
 ust without revealing secrets. In [Giacomelli16']\, a new proof of knowled
 ge for boolean circuits is introduced providing new horizons for signature
  schemes and authenticity verifications. Finally\, with those breakthrough
 s in cryptography and privacy preserving techniques\, numerous works have 
 been achieved to apply those techniques to concrete problems. A good examp
 le is [Pham16']\, providing a secure and private system for location-based
  fitness activity tracking. Hence\, we present in this proposal how all th
 ose blocks could be combined to provide both security & privacy on one han
 d and utility on the other hand.\n\nBackground papers\nHEAAN  - Homomorph
 ic Encryption for Arithmetic of Approximate Numbers\, by J. H. Cheon\, A. 
 Kim\, M. Kim\, and Y. Song. A homomorphic encryption scheme providing poly
 nomial evaluations.\nZKBoo - Faster Zero-Knowledge for Boolean Circuits\, 
 by I. Giacomelli\, J. Madsen\, and C. Orlandi. A zero-knowledge protocol f
 or boolean and arithmetic   circuits.\nSecureRun - Cheat-Proof and Private
  Summaries for Location-Based Activities\, by  A. Pham\, K. Huguenin\, I. 
 Bilogrevic\, I. Dacosta\, and J. Hubaux . IEEE Trans. Mobile Comput.\, 201
 6. A secure privacy-preserving system for reporting location-based activi
 ty summaries.\n\n\n 
LOCATION:BC 229 https://plan.epfl.ch/?room==BC%20229
STATUS:CONFIRMED
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