[RFC PATCH v1 00/13] SAE DecoyAuth multi-password authentication with FT/MLO support

Jouni Malinen j at w1.fi
Sat Oct 3 01:37:00 PDT 2026


On Fri, Oct 02, 2026 at 09:51:55AM -0600, Jeff Hansen wrote:
> My understanding was that password identifiers were intended to address this gap in WPA3-SAE. From my perspective, they still leave a couple of challenges for this use case:
> 1. Password identifiers are still sent in the clear for the first connection, so the identity is not anonymous. Even with the PID encryption enhancements, my understanding is that a rogue AP can force the client to divulge the clear-text PID again.

I don't really think that would be a real showstopper for deployment..
And in any case, it is up to the station to decide whether it would
expose the cleartext identifier again.

> 2. It's a different user experience from the existing PPSK/MPSK solution, especially for MDUs. There is no backward compatibility, and station OS vendors appear hesitant to add another field for joining a network.

That is much more likely concern. However, there is also common
understanding that the new model of a separate identifier (username) is
going to be needed in future for PQC and today for WPA3-Enterprise, so
it is not like this is going to be something that can be avoided
indefinitely and the question is really on when to do that change in
user experience.

> There is considerable interest from MDU managed-Wi-Fi operators: https://www.linkedin.com/feed/update/urn:li:activity:7282773188655095809/ That interest may not be well represented in IEEE conversations yet.
> 
> I know of MSPs that are not installing 6 GHz, or are disabling it for the time being, because of this gap in WPA3-SAE.
> 
> I'll be presenting to TGmf next week to work toward a path for integration into the 802.11 spec, as you've suggested.
> 
> Would feedback from those operators help demonstrate deployment interest? I recognize that station OS vendor support is a separate piece we still need to establish.

IMHO, this issue is known and critical to address and I see no need for
any additional justification to address it. It is the STA side
deployment of support for a new capability that needs convincing towards
a very small audience..

-- 
Jouni Malinen                                            PGP id EFC895FA



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