Authors : Eric Sesterhen & Thierry Zoller
Contact : http://www.cobra-basket.de & http://blog.zoller.lu
About
This is a straight forward linux port of Thierry Zollers' BTCrack. Should work with most other unixes too, code is nearly ansi clean, except for strdup(), but I guess every OS should have this by now.
Compiling was tested so far with :
- gcc version 4.1.1 (Gentoo 4.1.1-r3) on i686-pc-linux-gnu
- gcc version 4.3.0-alpha20061216 on i586-pc-linux-gnu
- gcc version 3.3.6 on i586-pc-linux-gnu
- gcc version 3.4.6 on i586-pc-linux-gnu
- gcc version 2.95.4 20011002 (Debian prerelease) on i686-pc-linux-gnu
- gcc version 4.0.3 on sparc-sun-solaris2.8
- icc Version 9.1 Build 20060706Z on i686-pc-linux-gnu
- Sun WorkShop 6 update 2 C 5.3 Patch 111679-11 2003/04/02
Interestingly there is nearly no difference between icc and gcc on my 2400+ Sempron box, the gcc seems slightly (~5%) faster. And only ~10% between -O3 and -Os. On my K6 the code compiled with an mid-december gcc 4.3 snapshot is twice as fast as the 3.3.6 version :-) On the solaris box, the sun compiler generated better code than the gcc (~15-20%) The dual P3 box, gave me a 1 1/2 speedup of gcc 4.1 to gcc 2.95, 3.4 was only marginally faster (~10%) than 2.95.
Test it with the provided csv file: ./btcrack 1 00:11:9F:C4:F3:AE 00:60:57:1A:6B:F1 ./Pin_654321.csv
Posts
2 comments:
Hi there,
Thanks a lot for providing this code.
Just wanted to let you know about 2 issues I found.
1) line 460 of btcrakc.c : "GetSRES(bp->kab, bp->au_rand_s, bp->bdaddr_m, bp->calc_sres_m, bp->calc_aco_m);"
It shall be "bp->calc_aco_s" instead of "bp->calc_aco_m". With your version the master ACO is overwritten by the one of the slave.
This is not imparing the finding of the PIN or link key, but if master ACO has to be reused for some reason, one will get the wrong one when refering to calc_aco_m
2) line 446: It is not correct to always us bp->bdaddr_s for the in_bdaddr parameter of KeyInit. Indeed it depends whether the slave or the master actually sent the IN_RAND. If it's the master then bdaddr_s has to be used, but if it's the slave then bdaddr_m has to be used.
Dear Carl,
Very interesting, would you be able to offer a direct patch to the code ?
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