Research

img Annually since 1999, Open Systems supports an ETH Diploma Thesis from the Computer Engineering and Network Laboratory (TIK) of the ETH Zurich. The successful cooperation of Open Systems and Professor Plattner allows students to work on their theses in a professional environment and to collect real world experience. On the other side, Open Systems benefits from the innovative and interesting concepts of ETH students.






 

Title Rating Autonomous Systems
Author Laurent Zimmerli
Description The quality of end-to-end connections over the Internet depends on the quality of the traversed Autonomous Systems. In this thesis, we developed an approach to rate Autonomous Systems by their quality. The approach is based on traceroute measurement data. Rating Autonomous Systems supports real-time Internet debugging and helps determining high quality ISPs.
Date August 2008
Documents Thesis
Contact papers@open.ch
Copyright ©2008 Open Systems AG, All rights reserved.
Title Signature-based Extrusion Detection
Author Cecile Luessi
Description An “Intrusion Detection System (IDS)” is an important component for the comprehensive protection of a company network. Unfortunately, a great number of false alarms make the application of an IDS difficult. This thesis investigates whether the outbound traffic of an infected host can be used to detect intrusion and, if so, how this can be done. Its focus lies on the distinction between attempted and successful attacks..
Date August 2008
Documents Thesis
Contact papers@open.ch
Copyright ©2008 Open Systems AG, All rights reserved.
Title Einhaltung der Security Policy an VPN Standorten
Author Patrik Bless
Description Computing environments continue to grow more insecure by the day. A myriad of threats of all kinds menace corporate, governmental, and even private information system infrastructures. In order to support security officers and engineers, a policy toolbox was developed for the Mission Control Security Gateway Service.
Date Oktober 2006
Documents Thesis
Contact papers@open.ch
Copyright Creative Commons Attribution-Share Alike 2.5 License
Title Automatic Monitoring of Internet Service Provider (ISP) Topologies
Author Janneth Malibago
Description Manual, real-time debugging is the standard solution for solving Internet connectivity problems. In this thesis, a long-term monitoring strategy is pursued that continuously monitors Internet routing paths with traceroute. By correlating route changes and latency variations, the reason for connectivity outages, e.g., re-routing via another ISP, can be quickly determined.
Date August 2006
Documents Thesis
Contact papers@open.ch
Copyright ©2006 Open Systems AG, All rights reserved.
Title Passive Measurement of Network Quality
Author Dominique Giger
Description Traditionally, network latency and packet loss statistics are gathered by doing active ping probes. The passive technique proposed in this thesis calculates these statistics by analyzing the actual VPN traffic in real-time. Tests show that this is a viable method for very accurate, non-intrusive statistics measurement.
Date Mai 2006
Documents Thesis
Contact papers@open.ch
Copyright ©2006 Open Systems AG, All rights reserved.
Title Scan Detection Based Identification
of Worm Infected Hosts
Author Christoph Göldi, Roman Hiestand
Description The number of new worms on the Internet increases rapidly. Worm infections cause traffic overloads in office networks and congestions of Internet links which cost the industry yearly several billion dollars. An implementation of a generic worm detection algorithm has been done based on the analysis of worm scan traffic.
Tests have shown that worms are detected in short time and with a very low false positive rate. The developed detection method enables affected companies to quickly react to worm infections and thus helps preventing major financial losses.
Date April 2005
Documents Thesis
Contact papers@open.ch
Copyright ©2005 Open Systems AG, All rights reserved.
Title Smart Intrusion Detection
Author Thomas Singer, Rolf Sigg
Description Intrusion detection is the art of detecting inappropriate, incorrect, or anomalous activity on computers and computer networks. Today, the majority of intrusion detection systems try to accomplish this task by acting somehow like a virus scanner. They look at captured network packets or system logs in order to find occurrences of patterns...
Date March 2001
Documents Thesis
Contact papers@open.ch
Copyright ©2003 Open Systems AG, All rights reserved.
Title Wireless LAN (WLAN) und Security
Author Stephan Gautschi
Description Die WLAN-Technologie erobert die Netzwerk-Welt im Sturm. Neue, erschwingliche und leistungsfähige Produkte erlauben einem breiten Publikum den Einsatz von drahtlosen Datennetzen zuhause, unterwegs oder in der Firma. Der folgende Bericht diskutiert Möglichkeiten und Grenzen der WLAN-Nutzung, insbesondere im Zusammenhang mit VPN-Technologien, welche über Optionen zur Chiffrierung und Benutzer-Authentisierung verfügen. Die identifizierten Zielgruppen sind "Home"- und "Mobile"-Benutzer, "Small offices" sowie interne Anwender ohne fest zugeteilte Arbeitsplätze wie Verkäufer oder externe Mitarbeiter.
Date Dezember 2002
Documents White Paper
Contact papers@open.ch
Copyright ©2002 Open Systems AG, All rights reserved.
Title Honeypots
Project Diploma thesis in cooperation with the Computer Engineering and Networks Laboratory (TIK) at the Swiss Federal Institute of Technology Zurich (ETH Zürich).
Authors Reto Baumann and Christian Plattner
Description A honeypot is used in the area of computer and Internet security. It is a resource which is intended to be attacked and compromised to gain more information about the attacker and the used tools. It can also be deployed to attract and divert an attacker from their real targets. The goal of this paper is to show the possibilities of honeypots and their use in a research as well as productive environment.
Date March 2002
Documents White Paper
Contact papers@open.ch
Copyright ©2002 Open Systems AG, All rights reserved.
Title Large Scale Certificate Revocation Architecture
Project Diploma thesis in cooperation with the Computer Engineering and Networks Laboratory (TIK at the Swiss Federal Institute of Technology Zurich (ETH Zürich).
Author Oliver Kessler
Description Although technologies for Public Key Infrastructures (PKI) are well developed nowadays and almost ready to be used, some issues are unsolved so far. The lack of a mechanism that provides scalable certificate revocation is a fundamental problem inhibiting the wide acceptance of a PKI in the Internet. This paper will compare some existing solutions and propose a novel mechanism called Certificate Revocation Framework (CRF).
Date March 2000
Documents White Paper | Abstract
Contact papers@open.ch
Copyright ©2000 Open Systems AG, All rights reserved.
Title Advanced Concepts for Intrusion Detection in Enterprise Networks
Author Lionel Gresse
Description The 90's have been the witness of the explosion of Internet use and Intranet deployment. If they rely on the same technology, their radically different topology and features change the game of security.
Date 1999
Documents White Paper | Abstract
Contact papers@open.ch
Copyright ©1999 Open Systems AG, All rights reserved.