Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/136072
Title: TOWARDS PRIVACY-PRESERVING AND ROBUST WEB OVERLAYS
Authors: JIA YAOQI
Keywords: Privacy, Web Overlays, Robustness, Onion Routing, Oblivious RAM, Software Guard Extensions (SGX)
Issue Date: 31-Mar-2017
Source: JIA YAOQI (2017-03-31). TOWARDS PRIVACY-PRESERVING AND ROBUST WEB OVERLAYS. ScholarBank@NUS Repository.
Abstract: In this thesis, we analyze privacy and robustness issues in web overlays, and propose solutions to address these issues using cryptographic and hardware primitives. First, we present inference attacks in peer-assisted content delivery networks (CDNs) on top of web overlays, which can be used by local passive adversaries to infer user’s online activities. To thwart such attacks, we propose an anonymous peer-assisted CDN (APAC), which employs onion-routing techniques to conceal users’ identities. Second, to handle with global passive adversaries performing long-term traffic analysis, we further design an oblivious peer-to-peer content sharing system (OblivP2P), which uses new primitives such as distributed oblivious RAM (ORAM) in the P2P setting. Lastly, to ensure the robustness of protocols against byzantine adversaries, we leverage a new hardware primitive, Intel software guard extensions (SGX). By enforcing our security properties, we confine byzantine nodes to have no extra advantage than omitting messages and improve the efficiency of P2P protocols in the synchronous setting. 
URI: http://scholarbank.nus.edu.sg/handle/10635/136072
Appears in Collections:Ph.D Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
JIAYQ.pdf2.79 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

71
checked on Jan 14, 2018

Download(s)

101
checked on Jan 14, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.