Date: Sun, 13 Feb 2011 15:23:38 +0000 From: Freddie Witherden <freddie@...herden.org> To: john-users@...ts.openwall.com Subject: Re: MD5 mmx/sse impelemtation for 32bit On 13/02/11 07:55, Yoni Londner wrote: > I am trying to compile it, but I am getting allot of errors: > for instance, MD5_SSE_PARA is defined only in x86-64.h and not in x86-sse.h. > Also, for target linux-x86-sse2 '-msse2' is needed. > I fixed all these problems, but I suspect this code was never used on > 32bit arch. > When I run the tests (./john --test) - all tests pass (including > md5_gen tests), except this one: Apache MD5 [12x]... FAILED > (get_hash(0)). > I will continue my testing, but will appreciate any help of someone > who used this code in 32bit apps. It should be possible, with a little bit of work, to get it functioning perfectly in 32-bit mode. However, due to increased register pressure the 32-bit version is likely to perform worse than the 64-bit version. Moreover, given that most (with the notable exception of the lacklustre Intel Atom) CPUs produced in the last five years are 64-bit capable porting the code to 32-bits may not be a worthwhile investment. > Another question (and please forgive my ignorance), what is ICC? > Yoni. ICC is the Intel C Compiler. Although commercial in nature it is available free for non-commercial users. It often produces code that is faster than that of GCC. It really is a case of YMMV. Polemically yours, Freddie. Download attachment "signature.asc" of type "application/pgp-signature" (199 bytes)
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