Rachel Greenstadt

greenie@eecs.harvard.edu Maxwell Dworkin #207 Harvard University Cambridge, MA 02138 tel: (617)496-5665 Personal Webpage

Page out of date, see http://www.eecs.harvard.edu/~greenie

My research interests lie in the areas of anonymity, privacy, identity, steganography, computer and network security, cryptography, and trusted computing. I am a Ph.D. candidate in computer science at Harvard's Department of Engineering and Applied Sciences

Publications
Presentations
Honors
Projects
Articles and Notes
Selected Courses
Degree Programs
Teaching
Employment
Advisors

Publications

Tony Vila, Rachel Greenstadt, David Molnar, ``Why We Can't Be Bothered To Read Privacy Policies: Privacy as a Lemons Market,'' PDF presented at the Second International Workshop on Economics and Information Security.
Stuart Schecter, Rachel Greenstadt, Mike Smith, ``Trusted Computing, Peer-ToPeer Distribution, and the Economics of Pirated Entertainment,'' PDF presented at the Second International Workshop on Economics and Information Security.
John Giffen, Rachel Greenstadt, Peter Litwack, Richard Tibbetts, ``Covert Messaging in TCP,''PS published in PET 2002
Rachel Greenstadt, ``Zebrafish: A Steganographic System,'' PS MIT M.Eng. Thesis thesis under supervision of Robert Morris, May 2002

Papers In Progress

Rachel Greenstadt, ``Hiding Data in Image Choices with the Zebrafish Steganographic System,''PS

Presentations

Rachel Greenstadt, ``Why We Can't Be Bothered To Read Privacy Policies: Privacy as a Lemons Market,''PPT presented at the Second International Workshop on Economics and Information Security., College Park, MD, May 29, 2003.
Rachel Greenstadt, "Covert Messaging Through TCP Timestamps," Presented at the Workshop on Privacy Enhancing Technologies. San Francisco, April 15, 2002
Rachel Greenstadt, "Covert Messaging Through TCP Timestamps," Applied Security Reading Group(ASRG), MIT, February 2002
Rachel Greenstadt, "Timing Attacks against SSH," Applied Security Reading Group(ASRG), MIT, September 2001
Rachel Greenstadt, Noah Appleton, Jeff Henrikson, "Software Construction Kits," Mitsubishi Electronics Research Labs, CRL, August 2000
Rachel Greenstadt, "Electronic Voting," Cryptography and Information Security Group (CIS), MIT Lab for Computer Science, February 2000

Honors

U.S. Department of Homeland Security Fellow, 2003-
Robert C. Byrd Scholar 1997-2001

Projects

IP-Anon: An IP-layer anonymizing infrastructure
Zebrafish: A Steganographic System - My master's thesis, on building a generalized, robust steganographic system with provable security properties
/dev/covert-channel - A project to build a covert channel using TCP time stamps
The Cookie Eaters Group hopes to bring better understanding to client authentication on the web.

Previous Projects

Rachel Greenstadt, Michael Kaminsky, Evolving Spam Filters Using Genetic Algorithms, PS
Rachel Greenstadt, Chris Laas, Jacob Strauss, PTFS: A Non-Journalling File System for Fast and Consistent Recovery
Making Models Project, Museum of Science, Boston
Software Contruction Kits, MERL CRL
Implementing RC6 on a Nubus Laboratory Kit
Macondo: a 10 day game which ran under the auspices of the MIT Assassins' Guild in January 2001.
Simulating helicopter control systems with the Tactical Systems Group at Litton Guidance and Control Systems

Articles and Notes

Summaries of the 2001 USENIX Security Symposium, ;login:, November 2001
- Reading Between the Lines: Lessons From the SDMI Challenge
- Authentication Session
Electronic Voting Bibliography
Glossary of Client Authentication

Selected Courses

Spring 2003: CS253r: Adv. Topics in Programming Language Compilation; CS286r: Electronic Market Design; CS243: Network Security Protocols (TF)
Fall 2002: CS143: Computer Networks; CS220r: Cryptography: Trust and Adversity; Math 122: Algebra; Engineering Sciences 351: Research in Computer Networks with H.T. Kung
Spring 2002: Embodied Intelligence
Fall 2001: 6.046 Introduction to Algorithms (TA); 6.857 Network and Computer Security
Summer 2001: Research Assistantship in the Cookie Eaters Group, MIT Lab for Computer Science
Spring 2001: 6.046 Introduction to Algorithms (TA); 6.876 Advanced Cryptography
Fall 2000: 6.894 Distributed Operating Systems Engineering; 18.404/6.840 Introduction to the Theory of Computation
Summer 2000: Research Internship at Mitsubishi Electronics Research Laboratories, Cambridge Research Lab continued into fall
Spring 2000: 6.111 Introductory Digital Systems Laboratory; 6.033 Computer System Engineering
Winter 2000: Independent UROP project with Prof. Rivest on electronic voting
Fall 1999: 6.875 Cryptography and Cryptanalysis
Spring 1999: 18.06 Linear Algebra; 6.170 Software Engineering Laboratory; 6.046 Introduction to Algorithms
Winter 1999: 6.270 Autonomous Robot Design Competition

Degree Programs

Bachelor of Science in Computer Science and Engineering, VI-3, MIT, June 2001
Master of Engineering in Electrical Engineering and Computer Science, VI-P, MIT, June 2002
Doctoral Student in Computer Science, Harvard University

Teaching Experience

Network Security Protocols (Harvard - CS 243)
Spring 2003: under Professor Radia Perlman
Graded weekly problem sets and quizzes, held weekly sections and office hours, gave guest lecture. Nominated for DEAS Teaching Fellow award.
Introduction to Algorithms (MIT - 6.046)
Spring 2002: under Professors Piotr Indyk and Michel Goemmans
Fall 2001: under Professors Charles Leiserson and Erik Demaine
Spring 2001: under Professors Madhu Sudan and Piotr Indyk
Designed problem set and exam questions, taught weekly recitations
Grader for problem sets, Spring 2000
Tutor in high school math, 1994-1999

Employment Experience

Harvard Computer Science Network Laboratory, Research Assistant, (Summer 2002), I work with Professor H.T. Kung on security analysis and design of an IP-layer anonymizing infrastructure.
MIT Lab for Computer Science, Research Assistant, (Summer 2001) I worked with Kevin Fu, Frans Kaashoek and the Cookie Eaters Group on the cookie collection project. I built a web proxy to collect ephemeral cookies, researched collecting cookies transmitted using SSL and wrote web based materials to explain client authentication on the web.
Mitsubishi Electronics Research Lab, Research Intern, (Summer-Fall 2000) I worked with Dr. Carol Strohecker on human computer interaction research. My work focused on redesiging the Software Construction Kits for learning. In particular, I revised and reworked the Bones kit for use in the Museum of Science. This kit allows a user to create a creature and then animate it.
Litton Guidance and Control Systems, Intern, (Summers 1999, 1998) I worked on programming, debugging and building simulators for helicopter control systems in Java, Ada and C. I also performed unit testing and wrote documentation. I designed and produced slides of the system for a presentation to the government of New Zealand.

Advisors, Past and Present

H.T. Kung, research supervisor, Harvard
Mike Smith, research supervisor, Harvard
Robert Morris, M.Eng thesis supervisor, MIT
Frans Kaashoek, R.A. supervisor, undergraduate advisor, MIT
Kevin Fu, R.A. supervisor
Carol Strohecker research supervisor, MERL
Ron Rivest, UROP supervisor, MIT