[pycrypto] RIPEMD-160 self-test failure

[Jeffery To]

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
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