2nd IEEE Signal Intelligence Challenge 2015: Final report

Hi all,

I’m happy to forward the final report on this year’s IEEE Signal
Intelligence Challenge which we organized in Karlsruhe and Darmstadt in
the past months!

– Felix


After its debut in 2014, the 2^nd Signal Intelligence Challenge was
organized by IEEE Student Branch Karlsruhe together with Secure Mobile
Networking Lab of Technical University (TU) Darmstadt from April till
June 2015.

Eleven teams from Karlsruhe and Darmstadt competed to solve a total of
25 different challenges in the fields of Spectral Analysis, Signal
Intelligence and Cryptography in order to find flags which were e.g.
hidden in a Direct Sequence Spread Spectrum Signal of which the teams
had no more a priori information than the band used for transmission.
Software defined radios, such as USRPs and RTL-SDR dongles were used to
receive the signals, while software such as Python, Matlab and GNU Radio
was used for data analysis and post processing.

We were very happy to have so many participating student teams, many of
them first-time SDR users and as they said, the challenge really got
them into it! At the end of a very exciting competition, last year’s
winning team ???FFT-Juchee??? managed to defend their title (228/250
points), followed by the team ???Die Aluh??te???, who climbed in a final
effort of 24h hacking to 2^nd place (90/250 pts.), leaving the third
team ???CypherTank??? (81/250 pts.) barely behind. We congratulate the
winners! A video of the awards ceremony held at this year’s ???Gulasch
Programmier Nacht??? (GPN15) in Karlsruhe is available at:

To conclude, the challenge was a great success, hopefully attracting the
interest of many new students to the field of Software Defined Radios.
Our great thanks go to the volunteers from ITI, SeeMoo, and CEL, who
were involved in organizing the challenge, and especially to our
sponsors, Ettus, the IEEE, and Rohde & Schwarz, who made the challenge
very attractive by sponsoring superb prizes: a USRP B210, SDR-Sticks,
books and beer! Without this support, such an event would not be

We look forward to the 3^rd Signal Intelligence Challenge in 2016! Feel
free to contact us, if you want to bring the challenge to your

(Author: Johannes Fink, Chair IEEE Student Branch Karlsruhe,
[email protected])

Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)

Felix W., M. Sc.
Research Associate

Kaiserstra??e 12
Building 05.01
76131 Karlsruhe

Phone: +49 721 608-46276
Fax: +49 721 608-46071
E-Mail: [email protected]


KIT – University of the State of Baden-W??rttemberg and
National Laboratory of the Helmholtz Association