On Thursday 23 October 2008 06:53:05 Christian Franke wrote: > On 10/23/2008 12:14 PM, Johann Spies wrote: > > Is it possible to use rainbow tables with a password cracker on Linux > > like 'john'? If so, how? If not, is it possible with any other > > password cracker on Linux? If you are not trying to break in and just testing windows passwords, then I assume you also have access to the real passwords and usernames. Why don't you just import them into linux and test them from there. My reasoning is that if john can determine the passwords relatively quickly, then the passwords are too weak. I did some performance testing on john using a dual core patch vs single core at http://www.edwiget.name/content/view/195/27/ the open source rainbow tables are about 121GB (if my memory serves me correctly) and are only available via bittorrent. I think it took me about 2 months to download them. http://www.antsight.com/zsl/rainbowcrack/ Also, something to consider, if you (or an attacker) have physical or remote access, game is over anyways....irregardless of passwords. -- -----BEGIN GEEK SIGNATURE----- \| ascii: Ed Wiget \| hex: 65 64 20 77 69 67 65 74 \| bin: 01100101 01100100 00100000 01110111 \| .....: 01101001 01100111 01100101 01110100 \| m: 6064071838 l: 6067591175 e: firstname.lastname@example.org \| Version: 3.12 www.edwiget.name \| GIT d- s--: a C++++ UL++++ P+ L++++ E--- W+++ N++ o+++ K- w--- \| O- M+ V PS+ PE Y+ PGP+ t 5 X- R- tv- b+ DI-- D \| G e+ h++ r++ y** ------END GEEK SIGNATURE------ : The BOFH for today is..... Melting hard drives : BOFH based on http://pages.cs.wisc.edu/~ballard/bofh/
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