Anonymity properties of two network coded gossip protocols
Name
932125542-MIT.pdf
Description
Full printable version
Size
1.6 MB
Format
Adobe PDF
Checksum (MD5)
489ee87de01c8528ecdc1e08e5f9df33
Author(s)
Josephson, Colleen A
Advisor(s)
Muriel Médard.
Date Issued
2014
Publisher
Massachusetts Institute of Technology
Abstract
This thesis documents the design and implementation of a new anonymous communications protocol, and an analysis of an existing protocol. NCGAB, proposed by Sergeev in 2013, eciently implements broadcast over unicast and requires no pre-existing infrastructure. We propose a second protocol, CHAP, which extends NCGAB and is designed to use wireless broadcast capabilities as well as wired links. We show anonymity for some information-theoretic measures under certain assumptions regarding adversaries and trac independence. Numerical results show that for some networks NCGAB fully anonymizes up to 90% of messages, with the remaining 10% having strong anonymity properties. NCGAB also improves up to 30% upon the baseline anonymity provided by a network coded gossip protocol not optimized for anonymity. We compare CHAP to NCGAB and show that CHAP is at least as anonymous as NCGAB and also exhibits interesting hierarchical separability that allows multiple anonymity protocols to operate simultaneously in dierent domains.
Description
Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2014.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 113-114).
Subjects
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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