The mailing list for users of the eduroam Configuration Assistant Tool (CAT)

[Tomasz Wolniewicz <twoln AT umk.pl>]

Hi,

 I think I would like to get more information about this difference between Windows 11 and Windows 10. If you change the certificates in the CAT profiles and the user run the new installers then the installer will remove the old profile and install the new one pointing to the new root certificate. I cannot imagine how Windows 11 can differ from Windows 10 here.

Yours

Tomasz

W dniu 22.05.2025 o 20:32, Herivault, Jacques pisze:

Hello,

 

To follow up on why I asked this question originally, it was because we just changed our certificate chain for our users with a good impact on them.

 

For your information, since all our users had to change their CAT profiles to get the new chain, we have had to adjust our user documentation for Windows 11 because now it seems that these CAT users need to go into the EAP properties to select the root certificate for the connection to work. Windows 10 users do not have to do this.

 

This does not seem to be a proper manipulation to impose on users. Either the executable needs to be adjusted or a Windows 11 package needs to be created.

 

Regards,

____________________________________________________________

Jacques Hérivault

Chargé de projet TI

Services informatiques – Direction des réseaux

herivault.jacques AT uqam.ca

514-987-3000 poste 2576

      servicesinformatiques.uqam.ca

 

 

De : cat-users-request AT lists.geant.org <cat-users-request AT lists.geant.org> de la part de Tomasz Wolniewicz <cat-users AT lists.geant.org>
Date : jeudi, 22 mai 2025 à 08:17
À : Stefan Paetow <Stefan.Paetow AT jisc.ac.uk>, cat-users AT lists.geant.org <cat-users AT lists.geant.org>
Objet : Re: [[cat-users]] Cat-signer-ams.eduroam.org certificat expirering on May 30 2025

Hi Stefan,

 your answer probably comes out of a confusion. The certificate in question was for signing the mobileconfig not the Windows exe. While Windows installers are signed with the use of timestamping and the validity of the signature does not expire with the validity of the signing certificate itself, for mobileconfig we have not been using timestamping (so far) and the the expired cert will generate a warning from the Apple system.

We are looking into the possibility of timestamping these as well.

Cheers

Tomasz

 

W dniu 22.05.2025 o 12:00, Stefan Paetow (via cat-users Mailing List) pisze:

Ciao Daniele,

 

No, the signing does not prevent people from using the installers. The certificate is used to sign the executable, which allows a user to verify that it comes from a reputable (i.e. CAT) source and that it's not been tampered with.

 

So users won't see anything different, unless they right-click and look at the signing information in the Properties menu.

 

With kind regards

 

Stefan Paetow

Federated Roaming Technical Specialist

eduroam(UK), Jisc

 

email/teams: stefan.paetow AT jisc.ac.uk

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From: <cat-users-request AT lists.geant.org> on behalf of "ALBRIZIO DANIELE (via cat-users Mailing List)" <cat-users AT lists.geant.org>
Reply to: ALBRIZIO DANIELE <albrizio AT units.it>
Date: Thursday, 22 May 2025 at 10:44
To: Tomasz Wolniewicz <twoln AT umk.pl>, "cat-users AT lists.geant.org" <cat-users AT lists.geant.org>, "herivault.jacques AT uqam.ca" <herivault.jacques AT uqam.ca>
Cc: "ruel.ian AT uqam.ca" <ruel.ian AT uqam.ca>
Subject: Re: [[cat-users]] Cat-signer-ams.eduroam.org certificat expirering on May 30 2025

 

 

I think Jacques Hérivault, asking "please advise on what impact we must face when it will be renewed" meant what impact on users and helpdesk we must face.

 

Is it correct to say that users with an installer downloaded before yesterday will not be able to run it after  May 30 2025 and they will get a non proceed warning about certificate expiration?

 

On Wed, 2025-05-21 at 19:01 +0200, Tomasz Wolniewicz wrote:

Hi,

   the signing certificate has been renewed and all downloaded mobileconfig files will be signed with the new ones.

Yours

Tomasz Wolniewicz

 

W dniu 19.05.2025 o 17:26, "Herivault, Jacques" (via cat-users Mailing List) pisze:

 

Hello,

 

The cat-signer-ams.eduroam.org certificat that is included in our CAT Eduroam profils downloaded on our users devices is expirering on May 30 2025.

 

Could you please advise on what impact we must face when it will be renewed ?

 

Thank you.

 

Regards,

____________________________________________________________

Jacques Hérivault

Chargé de projet TI

Services informatiques – Direction des réseaux

herivault.jacques AT uqam.ca

514-987-3000 poste 2576

      servicesinformatiques.uqam.ca

 

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-- 

 

Daniele Albrizio

Ufficio Reti e Telefonia | Networks and Telephony Office
Università degli Studi di Trieste | University of Trieste
Via Alfonso Valerio 12 - 34127 Trieste (Italy)
daniele.albrizio AT units.it
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Ufficio Reti e Telefonia | Networks and Telephony Office
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Tomasz Wolniewicz

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Tomasz Wolniewicz

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