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From "Julius Davies (JIRA)" <j...@apache.org>
Subject [jira] Created: (HTTPCLIENT-614) allow different strategies when checking CN of x509 cert
Date Fri, 08 Dec 2006 15:45:21 GMT
allow different strategies when checking CN of x509 cert

                 Key: HTTPCLIENT-614
                 URL: http://issues.apache.org/jira/browse/HTTPCLIENT-614
             Project: HttpComponents HttpClient
          Issue Type: Improvement
          Components: HttpClient
    Affects Versions: Nightly Builds
            Reporter: Julius Davies
            Priority: Minor

We're now doing a decent job for checking the CN of the x509 cert with https:


I think the patch for HTTPCLIENT-613 should cover 99.9% of the users out there.  But there
are some more esoteric possibilities, so I think Oleg is right.  We need to let the user change
the strategy, or provide their own strategy if they want to. 

Some additional things to think about:

- http://wiki.cacert.org/wiki/VhostTaskForce !!!   CN is depreciated?!?!   (I am not able
to find a popular website on HTTPS that isn't using CN!)

- [*.example.com] matches subdomains [a.b.example.com] on Firefox, but not IE6.  The patch
for HTTPCLIENT-613 allows subdomains.

- Should we support multiple CN's in the subject?

- Should we support "subjectAltName=DNS:www.example.com" ?  Should we support lots of them
in a single cert?

- Should we support a mix of CN and subjectAltName?

If we do create some alternate strategies for people to try, I'd probably lean towards something
like this:

X509NameCheckingStrategy.SUN_JAVA_6  (default)
X509NameCheckingStrategy.FIRST_CN_AND_NO_WILDCARDS   (aka "STRICT")

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