Date: Sat, 10 Jan 2009 05:39:34 +0300 From: Solar Designer <solar@...nwall.com> To: john-users@...ts.openwall.com Subject: Re: Advantages of Pro 1.7.3 for salted MD5 on Q6600 x86_64? Steve, On Fri, Jan 09, 2009 at 04:12:26PM -0600, Steve Bergman wrote: > This is my first post to this list, so I would like to thank Solar > Designer and the others who have made john possible. Also, I hope this > question is appropriate for this list. You're welcome, and thank you for asking the questions on the list rather than in private. > I am currently running john 1.7.2 x86_64 on Ubuntu 8.10. I've looked > over the Pro page, and the list, but I'm unclear on a couple of points: > > 1. Are there significant performance advantages of 1.7.3 Pro for FreeBSD > MD5 on a Q6600 running on a 64 bit Linux? (Level of MMX/SSEx support, > etc.) No. So far JtR Pro has been about well-tested native packages, ease of installation and near-optimal use on a given target platform, official support for more hash types (currently NTLM and OS X salted SHA-1 hashes), and commercial support. It has not been about performance improvements over the free versions, if you're able to build those optimally for your platforms on your own. > 2. For an American English location, are the dictionaries on the CD > superior to the freely downloadable all.gz file I have seen linked here? No. The CD contains all the same files that are found on the FTP mirrors, plus one additional file, which has wordlist mangling rules pre-applied (so it occupies most space on the CD). This additional file is primarily useful with other password recovery software, which might not include built-in word mangling rules as powerful as JtR's. It is also useful with JtR when cracking slow hashes and/or when the number of different salts is large, as it has all duplicate entries purged. (Even though input wordlists normally have no duplicate entries, applying the --rules typically results in some duplicates.) Rather than purchase the CD (or the download), you have the option to use the "unique" program as illustrated in doc/EXAMPLES to achieve the same effect: http://www.openwall.com/john/doc/EXAMPLES.shtml The choice is yours. You did not ask this, but you could want to know that right now JtR Pro actually does include a newer (superior) revision of all.lst than one found on the FTP mirrors or the CD. This is because I happened to update all.lst the last time specifically when I was working on JtR Pro, and I did not have a chance to update the wordlists collection since then (I intend to make more updates at once). Alexander -- To unsubscribe, e-mail john-users-unsubscribe@...ts.openwall.com and reply to the automated confirmation request that will be sent to you.
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