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Re: [[cat-users]] Using InCommon certificates

From: Stefan Winter <stefan.winter AT restena.lu>
To: Ricardo Stella <stella AT rider.edu>, cat-users AT lists.geant.org
Subject: Re: [[cat-users]] Using InCommon certificates
Date: Fri, 14 Feb 2020 09:18:52 +0100
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Hello,

> We have a eduroam setup in test mode and am looking at using the CAT
> tool. My question revolves around the intermediate and root certificates.
>
> My understanding is that the radius certs renewal won't affect the end
> users, as long as they are issued by the same intermediate/root certs.
> So I need to make sure the intermediates and roots don't expire any
> time soon, right? If they do, users would have to download a new
> version with the new certificates, right?

That's almost entirely correct.

The root needs to stay the same.

The intermediate can change, but some extra caution has to be applied in
that case: the EAP server needs to send the new intermediate along with
its server cert as a partial chain then, because clients do not possess
the intermediate locally.

It is usually considered good practice to always send the intermediate
anyway, so it's not a big deal. Just something to be and remain aware of.

Greetings,

Stefan Winter

--
Stefan WINTER
Ingenieur de Recherche
Fondation RESTENA - Réseau Téléinformatique de l'Education Nationale et de la
Recherche
2, avenue de l'Université
L-4365 Esch-sur-Alzette

Tel: +352 424409 1
Fax: +352 422473

PGP key updated to 4096 Bit RSA - I will encrypt all mails if the recipient's
key is known to me

http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xC0DE6A358A39DC66

Attachment: signature.asc
Description: OpenPGP digital signature

[[cat-users]] Using InCommon certificates, Ricardo Stella, 02/13/2020
- Re: [[cat-users]] Using InCommon certificates, Stefan Winter, 02/14/2020
  - Re: [[cat-users]] Using InCommon certificates, Brian Epstein, 02/14/2020
    - Re: [[cat-users]] Using InCommon certificates, Lukas Wringer, 02/14/2020