Learn, hack!

URL

http://events.ccc.de/camp/2011/Fahrplan/attachments/1865_slides

File name

1865_slides

File size

1.7 MB

MD5

d516a923534ac6771315a270e599c1a9

SHA1

3665a4a9e9a65599bd8fb92f58674668361c6c28

Software Defined Radio defines a new approach to analyze signals with software. With the flexibility of software SDR literally opened a new spectrum of hacking. However the internals of Digital Signal Processing, especially from the perspective of informatics and computer science, are hard to explore. The lecture delivers a case-study on how to analyze 802.15.4 (alias Zigbee, as an easy protocol) with USRPs (modular popular hardware for SDR) on a real-time protocol (for send time verification, sniffing etc.). Furthermore internals on DSP will be explained - as simple as possible. The intent is to also give a non-academic start point and to seed motivation to explore more advanced projects (like osmocom*). So practically the lecture explains what a Software Spectrum Analyzer or a Software Oscilloscope does: from a Hacker's perspective. It gives insight into a USRP(2) internals and goes into programming C++ and Python with GNU Radio. All demo-analysis will remain within the ISM band. - No GSM/Tetra will be captured. It's about the SDR technology and its use-cases - for a clear and constructive adaption by the Hacker's community to assist interesting making projects (of home-automation devices using 802.15.4 e.g.). In many media articles - especially from last Chaos Congress - a misunderstanding can arise to reduce SDR to (GSM) attack scenarios while this is not the only/general use-case. The lecture however clearly aims to assist any intended understanding how the osmocom* implementations work - for example.