EAP-TLS: Strategies for getting the right certificate to the right user

Chevalier Violet chevalier.violet at gmail.com
Tue Sep 12 07:00:03 CEST 2017

Update: I got my iPhone working. I think the problem was that I needed to
import the client.p12 cert (helpfully mentioned not very often of course).
Anyway, it's working!

As for how to make THAT relatively automatic... wow, I may need the website
Alan proposed.


On Tue, Sep 12, 2017 at 12:29 AM, Chevalier Violet <
chevalier.violet at gmail.com> wrote:

> Hi all,
> Thanks for all the thoughts. It's much appreciated to know that maybe it's
> not just n00bness that is causing me to struggle with this!
> I ended up making a pw protected page on my website (sigh)--but the limits
> of that solution without internet access are pretty obvious I'd say!
> And never mind that using TTLS-PAP with passwords saved as SSHA-512
> doesn't work on the iphone... !!! That's kinda insane if you ask me. But
> obviously apple didn't!
> Getting certs on the iPhone has been a real hassle--it'd be easier with
> mac or windows machines around because I could use iTunes, but anyway, it
> has been done through the website option!
> Now, I can't get EAP-TLS to work on my iPhone because I can't choose
> "mode" EAP-TLS. Instead, it continually asks me for the username & pass,
> which is precisely what I'm trying to avoid! I think there may be someway
> to signal that my wifi prefers TLS mode that I don't know about.
> If you have help on that point, that'd be great, and sigh&thanks!
> CV
> PS Indeed my routher is not exactly hotspot 2.0 or captive portal
> compliant!
> On Mon, Sep 11, 2017 at 10:22 AM, Chevalier Violet <
> chevalier.violet at gmail.com> wrote:
>> I've been googling around and kind of surprised to not be seeing a ton of
>> resources about this. Maybe you all can help!
>> EAP-TLS: Strategies for getting the right certificate to the right user.
>> It needs to be relatively automated. I do have users coming by with BYOD
>> devices, e.g. iPhones (omg they're super finicky about the freeradius setup
>> but that's another story!), frequently when I'm not around to set them up.
>> Users are starting with no internet access.
>> I was thinking maybe of the following:
>> 1) Use some kind of TTLS-MSCHAPv2 thing with a standard user & password
>> for guests that would change every so often. Maybe let them use the
>> internet either i) for a few minutes at a time or ii) only to access a page
>> on the internal network from which they could download the guest
>> certificate that would allow them to connect via EAP-TLS? 3) the certs
>> would expire after a few days.
>> I have been struggling to get even my own iPhone to have the proper cert!
>> On the bright side, my two linux machines are now working with EAP-TLS so
>> there's hope for me! I wish I could just put the certs on a USB key but
>> that doesn't work for phones. And it's a bunch of Linux machines, no
>> Windows or Macs around. Excuse me if this is a n00b question.
>> Thanks everyone!
>> PS At this link:
>> https://github.com/FreeRADIUS/freeradius-server/issues/2045#
>> issuecomment-324641610
>> Arr2036 mentions that the hot spot 2.0 standards set out how this could
>> work, with auto-renewing certs and the whole 9 yards. I wasn't able to find
>> how to make that work for linux, for instance with freeradius. Thanks!
> --
> "Do not speak, unless it improves on silence."  -- Buddha

"Do not speak, unless it improves on silence."  -- Buddha

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