[GSM] Source code of RX-FFT and GSM-Analyzer

Long time ago I coded tools to capture, demodulate, decode and decrypt data from an Software Defined Radio (SDR). As i dont see any reason to keep it private, i decided to release the source code. I mainly used a device that is comparable to the USRP, but designed by a friend of mine. Still [...]

[EOS] TimerGen Tool

Since last year I helped a little developing Magic Lantern, a Firmware mod for Canon EOS DSLRs. I reverse engineered some interesting registers and memory structures that make frame rate patching possible. (yeah, as always I couldn’t resist reverse engineering the next device I bought :) ) Now I’ve coded a little tool that makes [...]

[GSM] Kraken-win32

I added Kraken-win32 to my projects page. There you can read more about my kraken port.


I added a new project – my WebDAVServer for mobile phones. It was designed to be a small and simple WebDAV server for downloading files from your PC with your mobile phone. See the project page.

[GSM] Kraken

currently i am porting Kraken, the fantastic A5/1 cipher cracker to win32/x64. it seems that i am done with most of the steps. it starts, cracks the keys, supports ATI cards as the linux version does and is even able to run as a multi-client server application. i also added support for older cards like [...]

strange date

i just realized that the date of all posts is set to 2007.. interesting bug :)

[ARMada] bugfix release

I fixed the totally crappy and hackish BL calculation routine. Now it should work fine for all types of jumps forward and backward. No idea why i never realized its bugs (?)

[ARMada] small updates

there are small updates to ARMada. let me cite the SVN log: Revision: 3585 Author: geggo Date: 19:55:28, Mittwoch, 19. August 2009 Message: fixed parameter limit check for ADD SP, val operation —- Modified : /trunk/nokia/ARMada/compiler.c Revision: 3579 Author: geggo Date: 19:29:51, Mittwoch, 19. August 2009 Message: fixed ADDSP, ADDPC, SUBPC descriptions to match new [...]

[GSM] New FFT Visualizer Component

This time I built a new FFT Visualizer Component. It’s a split “FFT Plot”+”Waterfall” view, which has the “FFT Plot” in the top and the waterfall in the bottom half. In the video (watch fullscreen in HD mode) you cannot see the dB markers very clearly. These are on the left and the right border [...]

[GSM] SDCCH listening

The GSM Analyzer now is able to sniff SDCCH and SACCH channels too. What we can see there? Well, not much. Just the usual “who are you?” stuff followed by a CIPHER COMMAND. After that, all the traffic is encrypted using specified cipher. I uploaded a dump here, a short video is here ;)