On Fri, 2010-08-27 at 18:25 +0200, Guillaume wrote: > Hello all, > > I would like to help computing rainbow tables and decrypt A5/1 cypher > stream.
We have already computed a set of tables that are usable for decrypting A5/1 - but computing supplementary tables may be useful for some application where very high probability of recovery is needed. > - AMD ATI Radeon 5970 HD 2GB (2 GPU) from SFX > - 2 TB Seagate Barracuda (raid 10) > > I run Ubuntu 32bits last release (ubuntu-10.04.1-desktop-i386.iso) on a > C2D Intel 6320 OV 2380 Mhz with 2GB DDR2 5300 RAM @ 340 Mhz dual channel > Motherboard is ASUS P5B Deluxe (Chipset P965 / ICH8R from Intel) > > Does source code Radeon ATI Stream, OpenCL compatible ? > (latest code I got - tmto-svn - Revision 197) Please use the code from the git repository where the code is maintained. The svn repo will only recieve perodic syncs from git, and is lagging quite a bit behind. > Does both GPU on the card will be automatically used ? (with little > change on Config / Makefile of course) Kraken uses all cards pr default, for table generation you need to make a small edit in GenTable.py > If I buy a second Radeon 5970 dual GPU, does the code able to use both > cards - without using ATI CrossFire of course ? (without changing to > much the code...) 2x5970 is a tested configuration, but for optimum speed it was found to be best to compute 2 tables at a time in parallel to get maximum GPU utilization. > Does my config seems enough to compute the tables and crack the cypher ? For cracking A5/1 you have more than enough power but I would recommend getting a more disks, the easiest option is to try and obtain a copy of the precomputed tables. Otherwise you will have to spend 2-4 months computing your own set. If you do decide to compute your own tables, please consult me for getting tables IDs assign so we can avoid doing duplicate work. - Frank _______________________________________________ A51 mailing list [email protected] http://lists.lists.reflextor.com/cgi-bin/mailman/listinfo/a51
