News

Stefanie Roos is now affliated with the Privacy and Data Security Group at TU Dresden.

 

Name           Stefanie Roos

Position        Wissenschaftlicher Mitarbeiter

Email           roos@cs.tu-darmstadt.de

Telefon         +49 (6151) 16 - 76 149

Fax              +49 (6151) 16 - 3025

Büro             A312

Postanschrift TU Darmstadt - FB 20

                    FG Peer-to-Peer-Netzwerke

                    Hochschulstraße 10

                    D-64289 Darmstadt

                    Germany

I am currently working as PhD student in the area of secure distributed applications. The main focus of my work is on Darknets, overlays that restrict communication to devices of users sharing a real-world trust relationship. In this fashion, they prevent Sybil attacks and large-scale surveillance by design.
However, due to their restricted connectivity, Darknets lack efficiency. In my thesis, I evaluate, improve, and design various methods such as network embeddings and virtual overlays for efficient routing in Darknets. Graph theory and complexity theory are important tools for analyzing the suggested algorithms, as are network simulations.
Before joining the Privacy and Data Security group at TU Dresden in 2014, I was a member of the P2P  Networks group at TU Darmstadt and a PhD scholar of CASED, the Centre of Advanced Security Darmstadt, under the supervision of Thorsten Strufe. I received my diploma in Mathematics with Computer Science from TU Darmstadt in 2011, and was awarded the Datenlotsenpreis for my thesis 'Analysis of Routing in Sparse Small-World Topologies' in 2012. During 2009, I worked as a student researcher at the University of Saskatchewan, focusing on Genetic Programming under the guidance of Prof. Simone A. Ludwig.

Publications

Stefanie Roos, Benjamin Schiller, Stefan Hacker, Thorsten Strufe: Measuring Freenet in the Wild: Censorship-resilience under Observation, In PETs 2014

Frederik Armknecht, Manuel Hauptmann, Stefanie Roos, Thorsten Strufe: An Additional Protection Layer for Confidential OSNs Posts, In ICC 2014

Hani Salah, Stefanie Roos, Thorsten Strufe: Characterizing Graph-Theoretic Properties of a Large-Scale DHT: Measurements vs. Simulations, In ISCC 2014

Stefanie Roos, Patrick Welzel, Andreas Höfer, Thorsten Strufe: DarknetSim - A Simulation Framework for Social Overlays, In CNS/SpringSim 2014 (Best Paper Award)

Stefanie Roos, Thorsten Strufe: A Contribution to Analyzing and Enhancing Darknet Routing, In Infocom 2013

Andreas Höfer, Stefanie Roos, and Thorsten Strufe: Greedy Embedding, Routing and Content Addressing for Darknets, in Netsys 2013

Chris Biemann, Stefanie Roos, and Karsten Weihe: Quantifying Semantics Using Complex Network Analysis, In COLING, December 2012

Stefanie Roos, Thorsten Strufe: Provable Polylog Routing for Darknets, In 4th IEEE ICDCS International Workshop on Hot Topics in Peer-to-Peer Computing and Online Social Networking (HotPost), 2012

Benjamin Schiller, Stefanie Roos, Andreas Höfer and Thorsten Strufe: Attack Resistant Network Embeddings for Darknets, In Proceedings of IEEE SRDS/WNR, 2011

Simone A. Ludwig, Stefanie Roos, Monique Frize, Nicole Yu: Medical Outcome Prediction for Intensive Care Unit Patients, In: IJCMAM, vol. 4, no. 1, p. 19-30, December 2010

Simone A. Ludwig, Stefanie Roos: Prognosis of Breast Cancer Using Genetic Programming, In KES, p. 536-545, September 2010.

Service

PC memberships: ICC 2014, PADE 2014

Journal Reviews: Transactions on Computers, Computer Communications

Conference Reviews: PerCom 2014, ICC/CISS 2014, Sicherheit 2014, CompleNet 2013, HotPost 2013, SocInfo 2012, PST 2014, IEEE CNS 2014

Supervised Theses:

Benedikt Bickert - Securing GnuNet (Masterthesis, TU Darmstadt)

Christina Heider - Measuring Freenet (Masterthesis, Uni Mannheim)

David Jankoski - Graph-theoretic Approach to Network Resilience (Bachelorthesis, TU Darmstadt)

Florian Platzer - Detecting Darknet Bridges (Bachelorthesis, TU Darmstadt)

Jan-Michael Heller - Building a Freenet Testbed for Evaluation of Darknet Embedding Algorithms (Bachelorthesis, TU Darmstadt)

Manuel Hauptmann - Knowledge-based Data Access in Facebook (Bachelorthesis, Uni Mannheim)

Nam Truong Le - Resilience Measurements on Internet Topology Graphs (Bachelorthesis, TU Darmstadt)

Patrick Welzel - A Darknet Simulation Model (Bachelorthesis, TU Darmstadt)

Stefan Hacker - Churn Measurements in Freenet (Bachelorthesis, TU Darmstadt)

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