Radio Stuff Hacking - Linux Day 2018

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Pasquale 'sid' Fiorillo

Radio Stuff Hacking - Linux Day 2018 LILIS: Laboratorio per l'informatica libera sannita ONLUS

Logiciels

Radio Stuff Hacking
Pasquale ‘sid’ Fiorillo

About me
Security Auditor @ ISGroup (VR)
Offensive Security
● NPT
● WAPT

About me (FUFFA free :)
Hacking addicted since 8yo
Co-Founder of e-zine “IHP” -
http://www.autistici.org/hacking_e-zines/

SDR: Software
The Hacker’s Way!
sid@sid-UX303LNB:~$ FR="433.944e6"; SR="2.5e6";
rtl_fm -f $FR -s $SR -g 30 -M am |
baudline -reset -flipcomplex -samplerate $SR
-basefrequency $FR -channels 2 -quadrature
-format u8 -fftsize 2048 -stdin

SDR hacking in the real world
Now we are
going to
solve real
world
problems

SDR hacking… without ending up in jail :)

rtl_433
https://github.com/merbanan/rtl_433

SDR hacking: Step 1 - RTGN129 DATASHEET
433MHz

SDR hacking: Step 2 - Tune the receiver
FR="433.0e6"; SR="2.5e6";
rtl_sdr -p 130 -f $FR -s $SR -g 30 - |
baudline -reset -flipcomplex -samplerate $SR
-basefrequency $FR -channels 2 -quadrature
-format u8 -fftsize 2048 -stdin

SDR hacking: Step 3 - Find the right frequency
433.95MHz

SDR hacking: Step 3 - Find the right modulation
On-Off Keying

SDR hacking: Step 3 - Find the right modulation
https://www.sigidwiki.com/wiki/
Signal_Identification_Guide

SDR hacking: Step 4 - Demodulate
FR="433.95e6"; SR="2.5e6";
rtl_fm -f $FR -s $SR -g 30 -M am |
baudline -reset -flipcomplex -samplerate $SR
-basefrequency $FR -channels 2 -quadrature
-format u8 -fftsize 2048 -stdin

SDR hacking: Step 5 - Find a clock (speed)

SDR hacking: Step 5 - Decode
https://en.wikipedia.org/wiki/Manchester_code

SDR hacking: Step 5 - Decode (Universal
Radio Hacker) https://github.com/jopohl/urh

SDR hacking: Step 6 - No more radio stuff!
Continue with a regular reverse engineering
techniques.

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Radio Stuff Hacking - Linux Day 2018

1. Radio Stuff Hacking Pasquale ‘sid’ Fiorillo

2. About me Security Auditor @ ISGroup (VR) Offensive Security ● NPT ● WAPT

3. About me (FUFFA free :) Hacking addicted since 8yo Co-Founder of e-zine “IHP” - http://www.autistici.org/hacking_e-zines/

4. Radio stuff

5. Before

6. Now

7. SDR: Software Defined Radio

8. SDR: Hardware Part

9. SDR: Hardware Part (cheap!)

15. SDR: Software The Hacker’s Way! sid@sid-UX303LNB:~$ FR="433.944e6"; SR="2.5e6"; rtl_fm -f $FR -s $SR -g 30 -M am | baudline -reset -flipcomplex -samplerate $SR -basefrequency $FR -channels 2 -quadrature -format u8 -fftsize 2048 -stdin

16. SDR hacking in the real world Now we are going to solve real world problems

17.

18.

19. SDR hacking… without ending up in jail :)

20. rtl_433 https://github.com/merbanan/rtl_433

21. SDR hacking: Step 1 - RTGN129 DATASHEET 433MHz

22. SDR hacking: Step 2 - Tune the receiver FR="433.0e6"; SR="2.5e6"; rtl_sdr -p 130 -f $FR -s $SR -g 30 - | baudline -reset -flipcomplex -samplerate $SR -basefrequency $FR -channels 2 -quadrature -format u8 -fftsize 2048 -stdin

23. SDR hacking: Step 3 - Find the right frequency 433.95MHz

24. SDR hacking: Step 3 - Find the right modulation On-Off Keying

25. SDR hacking: Step 3 - Find the right modulation https://www.sigidwiki.com/wiki/ Signal_Identification_Guide

26. SDR hacking: Step 4 - Demodulate FR="433.95e6"; SR="2.5e6"; rtl_fm -f $FR -s $SR -g 30 -M am | baudline -reset -flipcomplex -samplerate $SR -basefrequency $FR -channels 2 -quadrature -format u8 -fftsize 2048 -stdin

27. SDR hacking: Step 5 - Find a clock (speed)

28. SDR hacking: Step 5 - Decode https://en.wikipedia.org/wiki/Manchester_code

29. SDR hacking: Step 5 - Decode (Universal Radio Hacker) https://github.com/jopohl/urh

30. SDR hacking: Step 6 - No more radio stuff! Continue with a regular reverse engineering techniques.

31. SDR hacking: Step 7 - Implement

32. SDR hacking: Step 7 - Implement

33. Pasquale ‘sid’ Fiorillo @siddolo Thanks

Radio Stuff Hacking - Linux Day 2018

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