2026-09-19T05:18:34Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/626372022-01-13T07:54:29Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
Christopher Lesniewski-Laas and Frans Kaashoek.
Cheng, Raymond (Raymond Y.)
Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
2011-05-09T15:12:26Z
2011-05-09T15:12:26Z
2010
2010
http://hdl.handle.net/1721.1/62637
712966026
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2010.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 61-63).
This thesis presents a novel mechanism for achieving secure and reliable peer-to-peer communications on the Internet. WhanauSIP merges a Sybil-proof distributed hash table with the session initiation protocol (SIP) to enable instant messaging, audio chat, and video conferencing that is resilient to censoring, eavesdropping, and forgery. Performance and security evaluations performed on the PlanetLab network demonstrate that the majority of resource lookups return within five seconds. These results indicate that WhanauSIP delivers practical performance with respect to call session initialization latency for voice-over-IP, without having to rely on any central servers. Furthermore, the tests demonstrated that lookup performance was minimally affected during a Sybil key-clustering attack, illustrating the network's resilience to malicious adversaries. This thesis delivers three software packages for public use: a general Whanau distributed hash table implementation, a WhanauSIP gateway, and a desktop IM/VoIP client.
by Raymond Cheng.
M.Eng.
63 p.
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.
WhanauSIP : a secure peer-to-peer communications platform
Secure peer-to-peer communications platform
Thesis
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Publication
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<Abstract>This thesis presents a novel mechanism for achieving secure and reliable peer-to-peer communications on the Internet. WhanauSIP merges a Sybil-proof distributed hash table with the session initiation protocol (SIP) to enable instant messaging, audio chat, and video conferencing that is resilient to censoring, eavesdropping, and forgery. Performance and security evaluations performed on the PlanetLab network demonstrate that the majority of resource lookups return within five seconds. These results indicate that WhanauSIP delivers practical performance with respect to call session initialization latency for voice-over-IP, without having to rely on any central servers. Furthermore, the tests demonstrated that lookup performance was minimally affected during a Sybil key-clustering attack, illustrating the network's resilience to malicious adversaries. This thesis delivers three software packages for public use: a general Whanau distributed hash table implementation, a WhanauSIP gateway, and a desktop IM/VoIP client.</Abstract>
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