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Ncat Wildcard Matching rules
From: venkat sanaka <venkatsanaka () gmail com>
Date: Sat, 13 Jun 2009 14:35:54 +0530
I have been working on to add wildcard matching support
for ncat so that it can accept wildcard ssl certificates aswell.
But i have a problem in implementation of matching rules
as there are different RFCs (like RFC 2595,RFC 2818,RFC 4513)
saying different matching rules.
Moreover the browsers and other ssl clients also had their own
wildcard matching rules without following any of the RFCs.
The slide No.5 of this presentation explains these differences
in wildcard matching rules very briefly.
see this site for more info on this issue:
First i thought of implementing the IE's way of doing this as those rules
are pretty close to what RFC 2818 says and more secure but
later taken aback after some discussion with david.
We decided to find out first how common is the usage
of wildcard certifiates and thereby either leaving this completely
or making it a low priority if there aren't many.For this we thought
of having a SSL certificate retrieval NSE script which scans
10,000 SSL web servers and see what they have in their certificates.
Any further thoughts,opinions and suggestions please :)
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- Ncat Wildcard Matching rules venkat sanaka (Jun 13)