Date: Tue, 28 Aug 2012 21:22:26 +0400 From: Solar Designer <solar@...nwall.com> To: john-users@...ts.openwall.com Subject: JtR vs. hashcat on /r/crypto (was: passwords cracked vs. time) On Tue, Aug 28, 2012 at 08:48:10AM +0200, Simon Marechal wrote: > Also there is this right now : > > http://www.reddit.com/r/crypto/comments/yuqyi/john_the_ripper_vs_oclhashcatlite/ Thanks. atom and I have commented on that thread - discussing this topic directly and in a public forum for the first time. (Previous occasions were extremely brief, even compared to these comments.) There is some useful info in there, such as: 1. The password length used for the posted oclHashcat-plus benchmarks is always 8. We may take this into consideration during our own development and benchmarks (such as to see if we have reached hashcat's speed on a certain hash type on a certain GPU type or not yet). 2. It turns out (was news to me) that hashcat added SunMD5 support recently (on CPU). According to atom, it does not use SIMD, yet is faster than ours with SIMD (JimF's unreleased code in magnum-jumbo). I've asked atom for specific speed numbers, but we might want to do our own benchmarks as well (Jim?), if we don't mind running the closed-source hashcat for that. ;-) 3. Merely curious: we (team john-users) had the question whether JtR was used by team hashcat in this year's contest or not (among other tools). Turns out that it was used after KoreLogic's tweeted hint about password length 21 (this is from a comment by r4d1x), as well as briefly by atom (not giving any new cracks in that case, so I think not worth a mention in the writeup for that). (I guess the use for long passwords did result in some extra cracks. I think both teams' tools can use some improvement in this area, though.) Alexander
Powered by blists - more mailing lists
Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.