john-users - testing on little/big-endian and 32/64-bit (was: raw-md5 module improvement)

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Date: Wed, 16 Jul 2008 17:28:26 +0400
From: Solar Designer <solar@...nwall.com>
To: john-users@...ts.openwall.com
Subject: testing on little/big-endian and 32/64-bit (was: raw-md5 module improvement)

Bucsay, Erik -

On Tue, Jul 15, 2008 at 11:53:28PM -0400, Erik Winkler wrote:
> >http://rycon.hu/tools/john-1.7.3-rawMD5_fast-2.diff
> 
> Ran this 1.7.3 with the rawMD5 patch on powerpc and I get the  
> following error now:
> 
> Benchmarking: Raw MD5 [raw-md5]... FAILED (cmp_exact)

By the way, a convenient way to test on all four common combinations of
endianness (little vs. big) and word size (32- vs. 64-bit) without
having access to multiple machines at once is to use recent versions of
Mac OS X and Xcode, which includes support for cross-compilation and for
running binaries built for the other architecture (PPC vs. Intel) and
word size.  At least on my Core 2 Duo MacBook with Mac OS X 10.5 and
Xcode 3.0, I am able to compile for all four combinations (by adding the
proper "-arch ..." options to CFLAGS/ASFLAGS/LDFLAGS) and run all of the
resulting binaries (with transparent emulation involved when needed).
Also, "make macosx-universal" produces a three-arch binary, and I am
able to choose which of the embedded binaries to run with "arch -...
./john", e.g. "arch -ppc ./john" will run the 32-bit PowerPC binary
embedded in the universal binary.

(There's some known breakage of macosx-x86-* and macosx-universal
targets in the 1.7.3 "development" release; I will repair this in
1.7.3.1 shortly.)

Alexander

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