[openssl-users] troubleshooting a puzzling issue

[Viktor Dukhovni]

> On Jan 13, 2017, at 5:28 AM, Thierry Parmentelat <thierry.parmentelat at inria.fr> wrote:
> 
> I have two certificates, one being signed by the other
> the attached code is a python code that uses M2Crypto to check for that fact

Your current problem is failure to post the two certificates along with
the anecdotal description.  You're also not reporting which versions of
the various O/S distributions you were using, and more importantly which
versions of OpenSSL were linked into Python's M2Crypto.

Real answers require real data.

-- 
-- 
	Viktor.