Date: Wed, 08 Feb 2012 11:26:53 +0100 From: Simon Marechal <simon@...quise.net> To: john-dev@...ts.openwall.com Subject: Re: cryptmd5 optimizations On 08/02/2012 01:19, Lukas Odzioba wrote: > I am trying to optimize opencl and cuda cryptmd5 code, and I got to > dead end from my perspective. I want to understand what optimizations > were done in MD5_std.c, but so many #ifdef's are distracting me. From > Alex i know that MD5_X2 should be off. My question is what else > "flags" should be on/off (and what they mean) to make code easier to > understand? I suggest looking for the md5cryptsse function in sse-intrinsics.c. It will probably look a lot more GPU friendly to start with. It starts by preparing buffers for the 8 cases, computes the base fingerprints with the "slow" md5 function, then runs into "dispatch", where you should be able to see the logic.
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