This is an old revision of the document!


35c3 SDR Challenge

There will be an SDR challenge at 35c3.

Bring your SDR equipment to Congress. Anything goes RTL-SDR or rad1o badge - anything that works with gnuradio.

Visit this link and/or the SDR-challenge assembly during congress to participate.

We want to encourage you to play around with radio waves through the use of SDR. If you have never used a SDR before, it's a great chance to get started - it's easier than many people think. In our challenges you will have to decode certain messages in various modulations and read out the challenge flags. In the Bluetooth Low Energy challenges you will have to open various BTLE locks by either applying a known attack or sniffing codes from the air.

There will be a scoreboard to measure your success against other participants with prices for the top players. If this is your first time playing with SDR we will give you a small price if you make it onto the scoreboard at all.

You will need an SDR. For those who do not have an SDR we have RTL-SDR devices that you can borrow (for a small deposit) at our assembly.

You will need a Computer with some SDR software. A good starting point is to have gnuradio, gqrx and baudline installed. Or any other software that you are already familiar with.

You will need some time. The easiest challenges only take a couple of minutes to solve, the hardest will take longer.

We also have some BTLE challenges - for one of these a simple device with BT4.0 interface will be enough, for others you'll ne a BTLE sniffer like the one form adafruit. - We will also have a few of those for you available…

After we've set up, links to the gameserver and status page will be added here

  • sdr/index.1545600194.txt.gz
  • Last modified: 2021/04/18 12:33
  • (external edit)