22c3 recordings – release this week?

So here are some news about the 22c3 recordings:

According to the last information I got, 130 of 146 recordings are ready to go. I don’t know why the team decided to release them all at once only but unfortunately you’ll have to be patient.

The release is planned for THIS WEEK. So stay tuned and check back for more information.

Source: http://22c3.fem.tu-ilmenau.de

22c3 Update: What happened and when will the recordings be available?

So here we are. The January passed by and still no recordings. What happened?


picture by namenlos

Straight after the congress we started working on the recordings – but soon we realised that almost all of the recordings we made live with ffmpeg and his friends were corrupted: The audio and video is just not in sync.

Well it would be easy if it was just shifted for a given amount of time – but the amount of shifting time is changing all through the recordings.

So we engaged DEFCON 4 and got back on our backup solution that is there, just in case something would go wrong. (who would have thought that?!).

So what’s DEFCON 4? We came to the congress with 400 brand new DV tapes. And that’s simply what our backup solution is: everything that was recorded during the 22c3 is on DV tape. And it’s in sync there.

So we are extracting nearly all of the recordings from those DV tapes…

And as you can imagine: this takes some time. It takes less time than we’d expected – we are making serious progress. Together with the CCC it was decided that an intro and outro should be added to each recording – that also takes some time. If you are experienced in creating scripted/batched DV material with definable text… we obviously need your help :-)

So when will the recordings be available? We hope very very soon. Like I said we are making good progress in getting the stuff off the tapes, but it’s very difficult to give a time frame. Check back here or on the official 22c3 FeM Homepage for updates – … well if we can get the intro/outro issue working fast it’ll probably be only days away.

If you have any comment, feel free to comment here.

22c3: definitiv answers – when will the recordings be available? – and a thank you



So here we are: a new year and just two days after the 22c3. As we can tell everything was recorded as planned and everything went just great.


I want to tell everybody who helped to make this happen: Thank you very much. It was a pleasure and great fun to work with you guys. The results that we all together achieved speak for themselves: nearly 1 Tbyte of downloaded live-stream bytes. Nearly 400 listeners on our streams at peak times.


In fact there is a lot to do afterwards: We have to cut the MPEG2 files (5 Mbit) of each lecture to set start and end-times correctly. We have to tag them and make them available (1 to 5 gigabyte each) for you as soon as possible – which means when the last hard drive arrives from berlin here in Ilmenau.


When all MPEG2 files are complete we complete our MPEG4 encodings – which means: we are already encoding everything we have in MPEG4 1.2 Mbit.


This is our main focus at the moment. It should be possible to make everything of the above mentioned available within January. After all this is done (or maybe in the meantime, we don’t know at the moment) the remaining WMV on-demand streams will become available as we have to reencode. So check back here to get more information and updates about this topic.


I often was asked why the WMV on-demand streams were only available for the first day: the answer is easy – we tested if it’s feasible to cut them nearly live – and we came to the conclusion that it raises the stress bar for our team to high to handle it the complete 4 days of the conference. So we changed our plans to ensure that you have a mostly flawless live-streaming experience.


At the end: Here is the list of the people I want to thank for their support and help at 22c3 (without any order actually):


laforge and his team, maedness, mucki, namenlos, manu, cosrahn, Agtmulda, yray, cutcat, ecki, ahzf, ambanus, somi, all the video and audio angels that made the great audio and video possible, Ambion for the great support, the POC who helped were our cable guys and supported us even with coffee, the NOC which made IPv6 happen finally and made the best conference network ever possible…. and a whole lot more people I forgot.

22c3: 3G Investigations slides and information


22. Chaos Communication Congress
3G Investigations


lecture slides


Scanning your GPRS/UMTS IP network for fun and profit


We are giving an overview of ip networks used for >=2.5G technologies. Our main focus is on scanning the overlaying ip network, on different Voice-over-IP filter implementations and the possibilities to circumvent them.


We want to explain the ip networks used in GPRS and UMTS cellular networks from the enduser point of view. How do they work today and what has to be done to get a normal webpage, voice-over-ip or even a video stream onto your PDA or SmartPhone.


For your private investigations inside your providers ip network we want to demonstrate you a tcp/udp port and round-trip-time based traceroute program based on the .NET compact framework. With the help of this program we want to analyse the anti voice-over-ip filters implemented by different cellular providers and show you some possibilities how to circumvent them _efficently_. So we don’t just tunnel all the traffic through a VPN. But even when these filters become more sophisticated in the future we want to present some ideas how to defeat your right to talk via voice-over-ip whereever and whenever you want to.


Slide download (PDF, 5.9 Mbyte)

Sourcecode: PrivateInvestigationNetworkToolSrc.zip (239,1 KB)

use TerraServer Webservices with Visual Studio 2005


Nico wrote a cool article about the TerraServer WebService and how to use it with Visual Studio 2005. He uses this WebService in his talks as a WebService example – a great idea: The problem is now, that the example sourcecode does not work under Visual Studio 2005. So he changed it to work – and you can download the new sourcecode here.



Source 1: Nico’s Weblog
Source 2: TerraServer WebService
Source 3: Example Source
Source 4: Download VS2005 compatible Sourcecode