New submission from Christian Heimes:

For effective SSL server cert validation a bundle of trustworthy CA certs is 
required. Most system ship such a bundle but it's not always possible to access 
the bundle from Python / OpenSSL. Windows and Mac OS X come into my mind. wget 
and curl ship a copy of Mozilla's CA cert bundle.

The site http://curl.haxx.se/docs/caextract.html explains how to extract the CA 
certs in PEM format. I suggest that we ship the CA bundle with Python and use a 
lookup chain:

- user defined path to a cacert directory or cacert.pem file

- cacert directory or PEM file in the user's home directory: 
  cacertdir = os.path.join(site.USER_SITE, os.pardir, "cacert")
  cacertfile = os.path.join(site.USER_SITE, os.pardir, "cacert.pem")

- system's ca cert directory (/etc/ssl/certs on Linux)

- CA cert bundle shipped with the Python installation.

----------
components: Library (Lib)
messages: 181379
nosy: christian.heimes
priority: high
severity: normal
status: open
title: Include CA bundle and provide access to system's CA
type: security
versions: Python 2.6, Python 2.7, Python 3.2, Python 3.3, Python 3.4

_______________________________________
Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue17129>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe: 
http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

Reply via email to