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Matei Zaharia. Nagaraj, Pratheek (Pratheek B.) Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science 2016-12-22T15:16:57Z 2016-12-22T15:16:57Z 2016 2016 http://hdl.handle.net/1721.1/105971 965622521 Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2016. 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 53-56). In this thesis, I extend private messaging systems by designing multi-party private messaging models and contribute to the implementation of a distributed private messaging system. Private communication is of increasing interest yet current state-of-the- art adopted solutions are inadequate in providing both scale and privacy. Most current communication methods leak metadata or are susceptible to traffic analysis in spite of end-to-end encryption. Vuvuzela is a foundational private messaging system helps reconcile these two concerns. This project builds on Vuvuzela by introducing three group messaging models. These models tradeoff support for multi-party messaging with network bandwidth and latency. Additionally, this work describes the implementation and evaluation of key aspects of a distributed private messaging system, Stadium. This new system scales to more users while keeping server costs down to promote the adoption of private messaging as a more feasible practice. Keywords. Privacy, Deniability, Messaging, Multi-party, Distributed Systems. by Pratheek Nagaraj. M.Eng. 56 pages eng Massachusetts Institute of Technology M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 Electrical Engineering and Computer Science. Multi-party and distributed private messaging Thesis application/pdf false Publication unknown unknown <Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="93dba851-bc4c-469d-baf5-68f68c90f859"> <Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type> <Language>eng</Language> <Title>Multi-party and distributed private messaging</Title> <PublishedIn> <Publication> </Publication> </PublishedIn> <PublicationDate>2016</PublicationDate> <Authors> <Author> <DisplayName>Nagaraj, Pratheek (Pratheek B.)</DisplayName> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> </Authors> <Editors> </Editors> <Publishers> <Publisher> <DisplayName>Massachusetts Institute of Technology</DisplayName> <OrgUnit /> </Publisher> </Publishers> <License>http://dspace.mit.edu/handle/1721.1/7582</License> <Keyword>Electrical Engineering and Computer Science.</Keyword> <Abstract>In this thesis, I extend private messaging systems by designing multi-party private messaging models and contribute to the implementation of a distributed private messaging system. Private communication is of increasing interest yet current state-of-the- art adopted solutions are inadequate in providing both scale and privacy. Most current communication methods leak metadata or are susceptible to traffic analysis in spite of end-to-end encryption. Vuvuzela is a foundational private messaging system helps reconcile these two concerns. This project builds on Vuvuzela by introducing three group messaging models. These models tradeoff support for multi-party messaging with network bandwidth and latency. Additionally, this work describes the implementation and evaluation of key aspects of a distributed private messaging system, Stadium. This new system scales to more users while keeping server costs down to promote the adoption of private messaging as a more feasible practice. Keywords. Privacy, Deniability, Messaging, Multi-party, Distributed Systems.</Abstract> <Access xmlns="http://purl.org/coar/access_right" > </Access> </Publication>