Date: Thu, 30 Aug 2012 02:32:52 +0400 From: Alexander Cherepanov <cherepan@...me.ru> To: john-users@...ts.openwall.com Subject: Re: JtR vs. hashcat on /r/crypto On 2012-08-28 23:21, jfoug wrote: >> 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. ;-) > > I have a strong belief the coin flip logic we have (the original sun logic), > is where the speedup can be found. Yes, we did remove a %5 in one of the > loops. But there still has to be a LOT of optimization left. There is a lot > of temp memory usage, and memory movement. Indeed all those crazy arrays can easily be ditched. Patched is posted to john-dev. -- Alexander Cherepanov
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