Homepage of Lexi Pimenidis

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CaptureTheFlag Cipher Cipher2 Cipher3 Contact Ctf22c3 Email Gameserver Hacking Index Publications Research Teaching Tools Whatsmyip To the group's page To the chair's page	Last updated on 07.03.08 21:14 News Mar 7th, 2008 Cipher 4 We will start a bit earlier this year with the preparations for Cipher 4. You can find all necessary information on this dedicated website. Mar 7th, 2008 Journal A joined work with Eleni will be published at DuD 2/2008. Dec 23rd, 2007 Paper accepted A joined work with Dogan and Vinh got accepted at GI Fachtagung Sicherheit 2008. Nov 30th, 2007 Paper accepted A joined work with Andriy and Hannes got accepted at ARES 2008. Sep 11th, 2007 Papers accepted Joined work with Andriy, Dogan, And Vinh got accepted at NordSec. Aug 17th, 2007 PetCon instantiated Together with friends, we created Pet-Con, a new forum for young researchers and students in the area in privacy enhancing techniques. Jul 1st, 2007 Paper accepted A paper of Olaf, Klaus, and other nice folks from Tübingen got accepted at IEEE GlobeCom. May 2nd, 2007 Cipher 3 organization finally starts We are sorry for being a little bit late, but finally we found the time to start with organizing the CIPHER 3 contest. You can find all necessary information on this dedicated website. Apr 22nd, 2007 2nd place! Last friday we particpated on the USFCTF 2007 and scored second place :) Even despite that we only decided to participate a couple of days earlier. But we also teamed up with the cool guys from RU Bochum and had a very chilling and relaxing event. Apr 12th, 2007 Office moved Our offices have been relocated within the computer science buildings. Please check the new room number in order to avoid longer walks. Apr 10th, 2007 Paper accepted Congratulations to David! A publication got accepted at DIMVA 2007. Jan 18th, 2007 Paper accepted A joint work with Andriy got accepted at IFIP SEC 2007. Jan 05th, 2007 New Gameserver release Hereby I publish the last changes to the gameserver made for the CTF at the 23c3. Due to technical problems, we weren't able to deploy the full range of things planned, so you might wonder what some of the changes are good for - don't worry, you'll find out soon. Oct 24th, 2006 NRW-Forschungstag IT-Sicherheit Tomorrow we'll be hosting NRW-Forschungstag IT-Sicherheit together with secure-it. Everyone's invited to come. Oct 10th, 2006 Papers accepted Joint works with Andriy got accepted at SSI 2006. Sep 6th, 2006 Tools page created I have generalized the former Orion page and created a new tools page. There you can find several small tools that I've come across, and that I consider to be of general interest. Aug 18th, 2006 New CTF planned There will be a CTF at 23C3 in Berlin. Although this will be for local participation only, you chould better check your time table, to be there: this one will be harder, meaner, more exciting and there will be prizes to win. Stay tuned for more info. July 18th, 2006 New Gameserver release The gameserver has undergone major changes. Everyone is invited to test, modify, debug, enhance, patch and/or break it. July 17th, 2006 Cipher2 is over Thanks to the participating teams, Cipher2 has been a success! You can see the final results here. June 27th, 2006 Paper accepted A joint work with Andriy got accepted at IFIP CMS. April 22nd, 2006 CIPHER 2 -- Announcement CIPHER2 will take place! There's now a dedicated website for CIPHER! March 30th, 2006 Planning of CIPHER 2 -- continued CIPHER 2 will very likely be hosted and started in July 2006. I just created a preliminary website. March 13th, 2006 Planning of CIPHER 2 CIPHER 2 will possibly be hosted and started in July 2006. You may spread the word, if you like. December 28th, 2005 22c3-Contest is over Although we only had less than a month of time, we successfuly hosted a CTF at the 22C3, Private Investigations. More informations are given here. December 10th, 2005 We won! We won the latest UCSB CTF! This was one of the most challenging and difficult CTF ever and we very much enjoyed this experience. Surprisingly, the team from Vienna finished second and proved to be a tough competitor. But again, the top three teams are from Europe ;-) December 7th, 2005 A new CTF is planned I'll try to organize a Capture-the-Flag challenge at the 22c3 in Berlin at Dec 27th/28th 2005. On this occation I also updated the Gameserver. November 28th, 2005 Paper accepted A joint work with Zina got accepted at PerCom. October 30th, 2005 Paper accepted Two papers are accepted at the conference 'Sicherheit 2006' in Magdeburg, Germany. October 25th, 2005 New Version of the Game Server Thanks to Lorenzo Martignoni for the patches that now comprise version 271 of the gameserver. August 27th, 2005 Paper accepted A publication has been accepted at NordSec 2005 August 12th, 2005 Paper accepted A publication has been accepted at the ACM CCS2005 Workshop on digital identity management. August 9th, 2005 Pages updates Updated hacking and added gameserver July 26nd, 2005 Paper accepted Two papers are accepted at the QoP workshop. March 28th, 2005 CIPHER page Created a page for CIPHER Januar 6th, 2005 Paper accepted The paper "A Practical Approach to Transparent and Usable Anonymity Networks for Fixed and Mobile Users" got accepted by the Sicherheit 2005 conference. December 20th, 2004 Paper accepted The paper "Teaching Data Security" got accepted by the WISE conference. December 15th, 2004 CTF Updated the pages on the CTF student group and the CTF event. August 27th, 2004 The Orion Project Added the page for the Orion project and created a webform to contact me. June 23th, 2004 Teaching, Research and Publications Filled those pages with content. Removed HTML errors, page is now valid 4.01 transitional. March 17th, 2004 Paper accepted The paper about the hitting set attack got accepted by the Information Hiding Workshop

Homepage of Lexi Pimenidis - Index

Last updated on 07.03.08 21:14

News

Mar 7th, 2008 Cipher 4

We will start a bit earlier this year with the preparations for Cipher 4. You can find all necessary information on this dedicated website.

Mar 7th, 2008 Journal

A joined work with Eleni will be published at DuD 2/2008.

Dec 23rd, 2007 Paper accepted

A joined work with Dogan and Vinh got accepted at GI Fachtagung Sicherheit 2008.

Nov 30th, 2007 Paper accepted

A joined work with Andriy and Hannes got accepted at ARES 2008.

Sep 11th, 2007 Papers accepted

Joined work with Andriy, Dogan, And Vinh got accepted at NordSec.

Aug 17th, 2007 PetCon instantiated

Together with friends, we created Pet-Con, a new forum for young researchers and students in the area in privacy enhancing techniques.

Jul 1st, 2007 Paper accepted

A paper of Olaf, Klaus, and other nice folks from Tübingen got accepted at IEEE GlobeCom.

May 2nd, 2007 Cipher 3 organization finally starts

We are sorry for being a little bit late, but finally we found the time to start with organizing the CIPHER 3 contest. You can find all necessary information on this dedicated website.

Apr 22nd, 2007 2nd place!

Last friday we particpated on the USFCTF 2007 and scored second place :) Even despite that we only decided to participate a couple of days earlier. But we also teamed up with the cool guys from RU Bochum and had a very chilling and relaxing event.

Apr 12th, 2007 Office moved

Our offices have been relocated within the computer science buildings. Please check the new room number in order to avoid longer walks.

Apr 10th, 2007 Paper accepted

Congratulations to David! A publication got accepted at DIMVA 2007.

Jan 18th, 2007 Paper accepted

A joint work with Andriy got accepted at IFIP SEC 2007.

Jan 05th, 2007 New Gameserver release

Hereby I publish the last changes to the gameserver made for the CTF at the 23c3. Due to technical problems, we weren't able to deploy the full range of things planned, so you might wonder what some of the changes are good for - don't worry, you'll find out soon.

Oct 24th, 2006 NRW-Forschungstag IT-Sicherheit

Tomorrow we'll be hosting NRW-Forschungstag IT-Sicherheit together with secure-it. Everyone's invited to come.

Oct 10th, 2006 Papers accepted

Joint works with Andriy got accepted at SSI 2006.

Sep 6th, 2006 Tools page created

I have generalized the former Orion page and created a new tools page. There you can find several small tools that I've come across, and that I consider to be of general interest.

Aug 18th, 2006 New CTF planned

There will be a CTF at 23C3 in Berlin. Although this will be for local participation only, you chould better check your time table, to be there: this one will be harder, meaner, more exciting and there will be prizes to win. Stay tuned for more info.

July 18th, 2006 New Gameserver release

The gameserver has undergone major changes. Everyone is invited to test, modify, debug, enhance, patch and/or break it.

July 17th, 2006 Cipher2 is over

Thanks to the participating teams, Cipher2 has been a success! You can see the final results here.

June 27th, 2006 Paper accepted

A joint work with Andriy got accepted at IFIP CMS.

April 22nd, 2006 CIPHER 2 -- Announcement

CIPHER2 will take place! There's now a dedicated website for CIPHER!

March 30th, 2006 Planning of CIPHER 2 -- continued

CIPHER 2 will very likely be hosted and started in July 2006. I just created a preliminary website.

March 13th, 2006 Planning of CIPHER 2

CIPHER 2 will possibly be hosted and started in July 2006. You may spread the word, if you like.

December 28th, 2005 22c3-Contest is over

Although we only had less than a month of time, we successfuly hosted a CTF at the 22C3, Private Investigations. More informations are given here.

December 10th, 2005 We won!

We won the latest UCSB CTF! This was one of the most challenging and difficult CTF ever and we very much enjoyed this experience. Surprisingly, the team from Vienna finished second and proved to be a tough competitor. But again, the top three teams are from Europe ;-)

December 7th, 2005 A new CTF is planned

I'll try to organize a Capture-the-Flag challenge at the 22c3 in Berlin at Dec 27th/28th 2005.
On this occation I also updated the Gameserver.

November 28th, 2005 Paper accepted

A joint work with Zina got accepted at PerCom.

October 30th, 2005 Paper accepted

Two papers are accepted at the conference 'Sicherheit 2006' in Magdeburg, Germany.

October 25th, 2005 New Version of the Game Server

Thanks to Lorenzo Martignoni for the patches that now comprise version 271 of the gameserver.

August 27th, 2005 Paper accepted

A publication has been accepted at NordSec 2005

August 12th, 2005 Paper accepted

A publication has been accepted at the ACM CCS2005 Workshop on digital identity management.

August 9th, 2005 Pages updates

Updated hacking and added gameserver

July 26nd, 2005 Paper accepted

Two papers are accepted at the QoP workshop.

March 28th, 2005 CIPHER page

Created a page for CIPHER

Januar 6th, 2005 Paper accepted

The paper "A Practical Approach to Transparent and Usable Anonymity Networks for Fixed and Mobile Users" got accepted by the Sicherheit 2005 conference.

December 20th, 2004 Paper accepted

The paper "Teaching Data Security" got accepted by the WISE conference.

December 15th, 2004 CTF

Updated the pages on the CTF student group and the CTF event.

August 27th, 2004 The Orion Project

Added the page for the Orion project and created a webform to contact me.

June 23th, 2004 Teaching, Research and Publications

Filled those pages with content. Removed HTML errors, page is now valid 4.01 transitional.

March 17th, 2004 Paper accepted

The paper about the hitting set attack got accepted by the Information Hiding Workshop