Re: Re: [COMMITTERS] pgsql: Add support for matching wildcard server certificates to the new

From: Peter Eisentraut <peter_e(at)gmx(dot)net>
To: pgsql-hackers(at)postgresql(dot)org
Cc: Magnus Hagander <magnus(at)hagander(dot)net>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Subject: Re: Re: [COMMITTERS] pgsql: Add support for matching wildcard server certificates to the new
Date: 2008-11-24 21:30:14
Message-ID: 200811242330.14711.peter_e@gmx.net
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I wrote:
> Some more information on this:
> https://www.switch.ch/pki/meetings/2007-01/namebased_ssl_virtualhosts.pdf
> slide 5 lists the matching rules for email, HTTP, and LDAP over TLS,
> respectively, which are not all the same. Also note that these methods
> have rules for interpreting fields in the certificate other than the common
> name for the host name.
>
> I think it is safest and easiest to allow a * wildcard only as the first
> character and only when followed immediately by a dot.
>
> Maybe some DNS expert around here can offer advice on what a morally sound
> solution would be.

This page summarizes the sadness pretty well:

http://wiki.cacert.org/wiki/WildcardCertificates

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