> On Jan 13, 2017, at 5:28 AM, Thierry Parmentelat <thierry.parmentelat@xxxxxxxx> 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. -- openssl-users mailing list To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-users