Date: Wed, 25 Apr 2012 05:11:07 +0400 From: Solar Designer <solar@...nwall.com> To: john-dev@...ts.openwall.com Subject: Re: SHA-256 code from Bitcoin miners On Tue, Apr 24, 2012 at 09:12:07PM -0300, Claudio Andr? wrote: > Hi, I've been looking at these miners for a while. But since i'm not a > criptographic guy, i haven't found (easy) good ideas. > > But, now looking at some recent opencl files in this "cgminer", i > noticed there are some ideas and/or probably the correct syntax of > something i failed to use in the past. > > I'll try the opencl usage part and i'll report. Thanks. Just to make it clear: for suitably licensed source files, we can even reuse the code as-is (and then modify it to fit our interfaces, to optimize it further, etc.) Not just take some ideas from there. I suspect that the OpenCL kernels in cgminer readily have faster SHA-256 code than ours. For other hash types such as SHA-512, indeed we can only take ideas (and I do recall that you worked on SHA-512 specifically so far). Alexander
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