Dipl.-Inform. JAN SEEDORF

Contact Details

Tel: +49 40 42883 - 2325
Fax: +49 40 42883 - 2086
Room: F-608

Office Address 

Universität Hamburg
Vogt-Kölln-Str. 30
D-22527 Hamburg

Research Interest

• Security of Voice-over-IP Systems
• The Session Initiation Protocol (SIP) and its implementations
• Security of Structured Overlay Networks / Distributed Hash Tables
• Security for P2P-SIP
• Former research topics
• Malicious Software
• Modelling of Internet Worm Propagation
• Assessment of AntiMalware-Software

Publications

Seedorf, J.: SIP Security - Status Quo and Future Issues, Proceedings of 23rd Chaos Communication Congress, Berlin, Germany, December 2006

Seedorf, J.: Security Challenges for P2P-SIP, IEEE Network Special Issue on Securing Voice over IP, September 2006

Seedorf, J.: Using Cryptographically Generated SIP-URIs to protect the Integrity of Content in P2P-SIP, Third Annual VoIP Security Workshop, June 2006, Berlin, Germany ( )
(© ACM, (2006). This is the author’s version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. The definitive version was/will be published in VSW06, June, 2006, Berlin, Germany. Copyright 2006 ACM 1-59593-387-5)

Posegga, J.; Seedorf, J.: Voice over IP: Unsafe at any Bandwidth?. In: Eurescom Summit 2005 – Ubiquitous Services and Applications, Heidelberg, 27.-29.4.2005, S. 305-314 ( )

Fangmeier, H.; Messerschmidt, M.; Müller, F., Seedorf, J.: Risiken der Nichterkennung von Malware in komprimierter Form. In: Flegel, U.; Meier, M. (Hrsg.): Detections of Intrusions and Malware & Vulnerability Assessment (DIMVA 2004), Lecture Notes in Informatics, P-46, S. 201-211

Eggert, B.; Messerschmidt, M.; Seedorf, J.: Klassifikation von bösartiger Software und aktuelle Testergebnisse des Virus Test Centers von AntiMalware-Software unter Linux. In: Linuxtag 2003 DVD, Karlsruhe, 10.-13.7.2003

Supervised Thesis

Diploma Theses

• A Webservice for Testing Implementations of the Session Initiation Protocol (Stephan Sutardi)
• Simulation of Secure Routing Strategies for Structured Overlay Networks (Christian Muus)
• Implementing a Prototype for Secure Session Establishment in P2P-based VoIP Systems (Frank Ruwolt)

Baccalaureus Theses

• Testing TLS Support in SIP User Agents (Frederick Pscheid / Volker Lübbers)

Student Meetings (usually Tuesday afternoon) 

Jnue 26th, 2007:

• 10:00 - Stephan Sutardi

July 3rd, 2007:

• 13:00 - VoipSec Students Project Software Security
• 14:00 - Christian Muus
• 16:00 - Frank Ruwolt

July 10th, 2007:

• 16:00 - Stephan Sutardi

July 17th, 2007:

• 13:00 - Bacc. Thesis Project Network Security

Teaching 

Summer term 2007

• Project: Network security ("Netzwerksicherheit")

Winter term 2006/07

• Proseminar: "Sicherheit in Unternehmensanwendungen"
• Exercises "Softwareentwicklung I" (SE I)

Summer term 2006

• Project: Software Security (Part II)
• Exercises "Gestaltbarkeit und Beherrschbarkeit von Informatiksystemen" (GBI)
• Exercises "Technische Informatik 4" (T4)

Winter term 2005/06

• Proseminar: "Sicherheit in Unternehmensanwendungen"
• Seminar: Internet-Security ("Internet-Sicherheit")
• Exercises "Softwareentwicklung I" (SE I)

Summer term 2005

• Project: Network security ("Netzwerksicherheit")

Winter term 2004/05

• Project: Network security ("Netzwerksicherheit")
• Exercises "Praktische Informatik 3" (P3)

Summer term 2004

• Projektseminar "Aktuelle Probleme der IT-Sicherheit"
• Exercises "Praktische Informatik 2" (P2)
  

Winter term 2003/04

• Praktikum: Reverse Engineering
• Projektseminar: "Aktuelle Probleme der IT-Sicherheit"
• Proseminar: "InformatikerIn in Beruf und Gesellschaft (IMG)"
  

Summer term 2003

• Projektseminar: "Aktuelle Probleme der IT-Sicherheit"
• Proseminar: "InformatikerIn in Beruf und Gesellschaft (IMG)"
• Exercises "Formale Grundlagen der Informatik 2" (F2)
  

Winter term 2002/03

• Projektseminar: "Aktuelle Probleme der IT-Sicherheit"
• Proseminar: "InformatikerIn in Beruf und Gesellschaft (IMG)"

Curriculum Vitae