[SPAM] Re: Ncat Wildcard Matching rules

[Rob Nicholls <robert () robnicholls co uk>]

On Thu, 18 Jun 2009 08:55:11 -0600, David Fifield <david () bamsoftware com>
wrote:
> On Thu, Jun 18, 2009 at 09:08:37AM +0100, Rob Nicholls wrote:
> > On Wed, 17 Jun 2009 12:03:03 -0600, David Fifield
<david () bamsoftware com>
> > wrote:
> > > How common are these wildcard certificates in practice? Does anybody
> > > run
> > > an SSL site with one of them?
> >
> > I don't use a wildcard certificate on my own website, but I've tested a
> > number of clients in the last few years that have used them on theirs.
So
> > they're not uncommon.
>
> Are they the kind that would be handled by a single leftmost wildcard,
> nothing fancier?

Yes, I don't think I've ever seen anything other than a single leftmost
wildcard.

I've also seen wildcard certificates that have a Subject Alternative Name
of the domain itself (as a certificate for *.domain.tld isn't valid for any
sites hosted at https://domain.tld), but that's about as exotic as I can
remember. I presume whatever code handles SANs would also cope with a
wildcard with SANs.

Rob




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