Re: [http-auth] I-D Action: draft-morand-http-digest-2g-aka-03.txt

[<[e-mail]>]

Hi Stephen,

For the record, in mobile networks, Digest mechanism is first over SIP (IMS), then over HTTP (GBA - Generic Bootstrapping Architecture). When introduced, only 3G mobile subscribers (with 3G smartcards) were considered and Digest was enhanced to support the 3G AKA authentication method. Now, considering that a lot of mobile users will remain with their 2G SIM card for a while, GBA was enhanced to support 2G users by deriving 3G authentication vectors from 2G authentications vectors. The problem is that this derivation mechanism is not always supported and it makes difficult to use it. Defining a simple Digest 2G AKA mechanism would remove this need for derivation and make simpler he deployment of simcard based authentication.

Some solutions have been developed based on the material available in and some other deployments would require such mechanism to enable simcard-based HTTP authentication over untrusted environment (e.g. free hotspots) to access mobile operator environment/services.
This draft-ietf-http-digest-auth-a3a8-01 has expired and the author did not want to go on the publication effort. And I then proposed to publish it as informational RFC some times before all the discussions on the HTTP-bis or HTTP-Auth.

So, in brief, I'm not aware of large deployment using this mechanism but there is a confirmed requirement for such mechanism.

Regards,

Lionel

-----Message d'origine-----
De : Stephen Farrell [mailto:[e-mail]] 
Envoyé : mercredi 4 septembre 2013 14:57
À : MORAND Lionel IMT/OLN
Cc : Yaron Sheffer; Yoav Nir; <[e-mail]>
Objet : Re: [http-auth] I-D Action: draft-morand-http-digest-2g-aka-03.txt


Hi Lionel,

On 09/04/2013 01:52 PM, [e-mail] wrote:
> The idea is just to document within IETF the Digest 2G AKA mechanism,
> as a companion of the RFC3310.

Can you clarify if the draft describes some existing deployment
or if its a new proposal? (I think it'd be great if the draft
itself made that clear.)

Thanks,
S.

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