Date: Sat, 30 Jul 2011 18:51:21 +0400 From: Solar Designer <solar@...nwall.com> To: john-users@...ts.openwall.com Subject: Re: Sha-256 Hi, There's john-1.7.6-sha256cuda-0.diff on the wiki: http://openwall.info/wiki/john/patches This is a patch by Lukas Odzioba, described by him as follows: "This patch provides SHA256 support for CPU and GPU execution. GPU version is using CUDA and works only on Linux builds." However, inside the patch I don't see a CPU implementation. I think Lukas had one, but perhaps it was actually a separate patch. Lukas? Meanwhile, if you have an NVidia GPU, CUDA, and Linux, you may use this patch for some speedup. (There are also a few other GPU patches on the wiki.) On Sat, Jul 30, 2011 at 10:59:06AM +0200, groszek wrote: > I believe there is no official support, but a while back I needed sha2 > formats too so I wrote the support for them basing on raw-md4 code. > > Attached files enable the formats raw-sha224, raw-sha256, raw-sha384, > raw-sha512. If someone wants to integrate that into jumbo or such it'd > be great, I'm afraid I don't have experience or time for that... Thanks! I assume your changes relative to my sample code are too trivial to be subject to copyright - is this your understanding too? In these files, the ALGORITHM_NAME strings don't make sense to me - perhaps my convention was too cryptic for people to figure out what these are supposed to mean. The rest looks reasonable. Alexander
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