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Revision 11 (Karsten, 03/22/2013 10:19 AM) → Revision 12/16 (Karsten, 12/20/2013 01:41 PM)
h3. Overview This open source software allows the 'cracking' of A5/1 keys used to secure GSM 2G calls and SMS. The cracking unitity Kraken, developed by Frank A. Stevenson, is written in C++/python and targets AMD (ATI) GPUs and CPUs. h3. Mailing list A public mailing list for announcements and discussion can be found "here":http://lists.srlabs.de/cgi-bin/mailman/listinfo/a51 . Please fill bugs and support requests through the "issue tracker":http://opensource.srlabs.de/projects/a51-decrypt/issues/new as they may be of little relevance to the majority of the mailing list subscribers. h3. Code The (read only) Kraken git can be fetched with <pre> git clone git://git.srlabs.de/kraken </pre> h3. Related projects The A5/1 decryption was originally meant to be used with "Airprobe":http://airprobe.org), which allows interfacing with the radio waves with the help of gnuradio. "This tutorial":https://srlabs.de/airprobe-how-to/ explains the decryption process. Airprobe has, for most users, since been replaced by the cheaper "Osmocom phones":http://bb.osmocom.org h3. Further reading [[A51|Cryptoanalysis in n greater detail]]