[Python-Dev] PEP 476: Enabling certificate validation by default!

Christian Heimes christian at python.org
Sat Aug 30 19:21:41 CEST 2014

On 30.08.2014 17:22, Alex Gaynor wrote:
> The Windows certificate store is used by ``load_default_certs``:
> * https://github.com/python/cpython/blob/master/Lib/ssl.py#L379-L381
> * https://docs.python.org/3.4/library/ssl.html#ssl.enum_certificates

The Windows part of load_default_certs() has one major flaw: it can only
load certificates that are already in Windows's cert store. However
Windows comes only with a small set of default certs and downloads more
certs on demand. In order to trigger a download Python or OpenSSL would
have to use the Windows API to verify root certificates.


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