I know A51 list is about the crypto, but i read a lot about the hardware. I don't know anywhere else on this planet has more people who cared about this, so i posted this here. Sorry if you are not interested. ----- Hi, list I am a young electronics engineer. The security vulnerability of contemporary electronic systems attracts me to study the whole to study them.
Remember MIFARE classic got hacked? Since then Proxmark 3, a Xilinx Spartan2 + ARM7 TDMI software-defined radio gadget got lots of attention. Now 26c3 has a5/1 hacked, people are talking about USRP. I downloaded the EDA source files from gnuradio SVN repo, had a glance on its BOM, though I didn’t calculate price from digi-key, neither asked how much the PCB and assembly would cost, I don’t think a make a USRP clone would cost more than $300, However, I read that the clock and ISM band filter need to be mortified before you can use an USRP to run openBTS successfully. I am quite interested in building a refined GSM specific USRP classic. Doing a whole new design for much higher baseband processing power, on board RAM and DSP, and support bead forming is lovely, but I don’t think my current knowledge and skill is sufficient for the job. Here’s the idea, a hardware project to implement a GSM-study specific mod of USRP classic, which include a DDS, an optional power supply, a on board 800/1800 dual band RF module. I don’t know if the design of USRP classic hardware is open sourced. There’s no copyright information from the SVN. I don’t know if distributing such a radio device in US/Euro is illegal either. I am from south China, and the administrative code here is loose and simply rough. If you are interested in the idea, offering your suggestions, helps and recommendations are appreciated. regards, Jerry EOF _______________________________________________ A51 mailing list [email protected] http://lists.lists.reflextor.com/cgi-bin/mailman/listinfo/a51
