Date: Wed, 11 Apr 2012 12:12:39 +0200 From: Simon Marechal <simon@...quise.net> To: john-dev@...ts.openwall.com Subject: Re: bitslice des On 11/04/2012 10:57, Deepika Dutta Mishra wrote: > I read the mailing lists, I will take up one of the algorithm soon. > Right now I am going through the DES BS code. Have you compared your > code to openssl implementation (which is not bit sliced)? How much speed > up has it given? I ran the test on my system, for DES I have following > result. I could not understand the meaning of the result, I mean how you > calculate c/s, what is real/virtual and how to relate c/s to > encryptions/sec. > > Benchmarking: Traditional DES [32/32 BS]... DONE > Many salts: 439104 c/s real, 1514K c/s virtual > Only one salt: 433184 c/s real, 1353K c/s virtual Real refers to how many checks/seconds were computed during the time the benchmark was run. Virtual is some calculation on how much it could be if JtR was able to seize all CPU resources. When in doubt you will want to run this on an idle system and only trust the "real" value. A check uses 25 DES encryptions. You can also check the LM format.
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