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+ <H1>[pycrypto] RIPEMD-160 self-test failure</H1>

+ Jeffery To

+ <A HREF="mailto:pycrypto%40lists.dlitz.net?Subject=Re%3A%20%5Bpycrypto%5D%20RIPEMD-160%20self-test%20failure&In-Reply-To=%3CCAJXyS%3DhP6aUBELQRe_-vi9dHtFgNU2vRFtpvLyJkAjYjT9uOBQ%40mail.gmail.com%3E"

+ TITLE="[pycrypto] RIPEMD-160 self-test failure">jeffery.to at gmail.com

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+ Fri Oct 30 09:27:53 PDT 2015

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+<PRE>Thanks for your help - endianness was the issue. The tests all pass after

+patching setup.py.

+Thanks again!

+Jeff

+On Thu, Oct 29, 2015 at 9:50 PM, Legrandin <<A HREF="http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto">helderijs at gmail.com</A>> wrote:

+> Hi,

+>

+> You most probably get PyCrypto compiled in little-endian mode but your

+> router is big endian. There is no clean way to solve this other than

+> manually forcing 'PCT_BIG_ENDIAN' to be 1 in setup.py.

+>

+> L.

+>

+> 2015-10-28 12:03 GMT+01:00 Jeffery To <<A HREF="http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto">jeffery.to at gmail.com</A>>:

+> > Hi,

+> >

+> > I'm trying to cross-compile PyCrypto 2.6.1 for OpenWrt (Chaos Calmer

+> 15.05,

+> > targeting ar71xx). The library compiled without any fatal errors and I'm

+> > able to package and install on my router (TP-Link TL-MR3020).

+> >

+> > To be sure it's working correctly, I transferred setup.py to my router

+> and

+> > ran the self-test. All the tests passed except for the 9 RIPEMD-160 hash

+> > tests. The library function(s) seem to return normally, but the returned

+> > hash is incorrect, e.g.:

+> >

+> > FAIL: runTest (Crypto.SelfTest.Hash.common.HashSelfTest)

+> > RIPEMD #1: '' (empty string)

+> > ----------------------------------------------------------------------

+> > Traceback (most recent call last):

+> > File "/usr/lib/python2.7/site-packages/Crypto/SelfTest/Hash/common.py",

+> > line 88, in runTest

+> > self.assertEqual(self.expected, out1) # h = .new(); h.update(data);

+> > h.digest()

+> > AssertionError: '9c1185a5c5e9fc54612808977ee8f548b2258d31' !=

+> > '7c7c0f550ddb9e5ebf157869ea147e65cb89bb0e'

+> >

+> > I'm unsure how to proceed at this point; my searches on Google haven't

+> > returned any relevant results. What area/library/etc should I

+> > investigate/debug to fix this? Any help would be appreciated.

+> >

+> > Thanks!

+> > Jeff

+> >

+> > _______________________________________________

+> > pycrypto mailing list

+> > <A HREF="http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto">pycrypto at lists.dlitz.net</A>

+> > <A HREF="http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto">http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto</A>

+> >

+> _______________________________________________

+> pycrypto mailing list

+> <A HREF="http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto">pycrypto at lists.dlitz.net</A>

+> <A HREF="http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto">http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto</A>

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