32C3 – An Angel In Retrospect – Being Part Of The Conference Instead Of Just Attending

And here is one more post about my 32C3 experience at the end of last year in Hamburg. This was the first conference I did not only “attend” but was actually “a part of”. There is a big difference between the to approaches: Normal conferences are fully organized and you go there to listen to … Continue reading 32C3 – An Angel In Retrospect – Being Part Of The Conference Instead Of Just Attending

32C3 – Congress Infrastructure Review And A Plea for GSM ARFCNs for 2016

Like ever year at the end of the Congress one of the last sessions is the Infrastructure Review. Here, the people who built the congress data network, the DECT network, the GSM network and the Seidenstraße talk about the technology they used this year. It always interesting to hear how much data, calls and packets … Continue reading 32C3 – Congress Infrastructure Review And A Plea for GSM ARFCNs for 2016

32C3 – Vehicle2Vehicle Communication with IEEE 802.11p

One feature some proponents are pushing for future 5G networks are ultra short reaction times for ultra critical communication, for example between cars. What I failed to understand so far in this discussion was why for car to car communication a fixed network infrastructure and a backhaul network was necessary!? After all, car to car … Continue reading 32C3 – Vehicle2Vehicle Communication with IEEE 802.11p

32C3 – A One Chip Retro Console For Assembly Programming

My 32C3 discovery of the day: I’m not quite at the end of my Nibbler discoveries yet but I’ve just figured out how I want to continue my hardware adventures by climbing up the CPU ladder just a bit to something with interrupts and a real hardware stack: Voja Antonic’s ‘DIY Single-chip 2D Retro Game … Continue reading 32C3 – A One Chip Retro Console For Assembly Programming

32C3 – Approaching 20 Gbit/s of Outbound Traffic

12.000 people have bought tickets for the 32C3 and while they consumer a lot of data from the Internet it's easily dwarfed by the amount of data that is flowing from the congress to the outside world. How much of that are the live and recorded video streams is hard to tell but I guess … Continue reading 32C3 – Approaching 20 Gbit/s of Outbound Traffic

No 5 GHz Wifi in Your Notebook For 32C3? Use Your Smartphone As A Wi-Fi Dongle over USB!

It almost time for the 32C3 now and I'm on my way to attend in person this year. One thing the organizers have kept pointing out over the last few years is that due to the very limited spectrum available in the 2.4 GHz band, the network experience will be rather mediocre in this band. … Continue reading No 5 GHz Wifi in Your Notebook For 32C3? Use Your Smartphone As A Wi-Fi Dongle over USB!

Eduroam – Wifi With A Certificate And Cool Roaming Features

Back in December 2015 I found my first public Wifi network at 32C3 that used a certificate instead of a common password, not so much for user authentication but for assigning an individual ciphering key to each device. Especially at a hacker conference that’s a plus as normal WPA encryption uses the same passphrase for … Continue reading Eduroam – Wifi With A Certificate And Cool Roaming Features