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Re: [STDS-802-11-TGBN] 11-25/2015 - lb291-mac-cr-for-cid-4808-in-37.16.5 (roaming security issue)

Hello Zhao Xuwen,

I reviewed the changes and in my opinion, the information that you are looking to include would be in the scope of the PTK, not the PMK. The reason is because in any of these transitions, the non-AP MLD is associated to the SMD-ME. The PTK is the key resulting from this association (a PMK, or PMK-R1 in the case of FT, can be cached for subsequent associations). 

The PMK or PMKID do not need to be able to be transmitted from the SMD-ME to the target AP MLD.

It could be that we derive the following:
- For shared PTK, a PTKName
- For per-MLD PTK, a PTKName associated with the per-AP MLD PTK.

Thanks,

Mike

On Wed, Nov 5, 2025 at 10:17 PM Zhao Xuwen <zhaoxuwen123@xxxxxxxxxxx> wrote:

Dear SMD BSS transition(Seamless Roaming) TTT members,

I have uploaded the following CR doc that addresses roaming security issue.

 

Please review and share any feedback in this email thread.

 

11-25/2015 - lb291-mac-cr-for-cid-4808-in-37.16.5

 

Thanks,

Xuwen Zhao

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