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Hi Philippe,
Hi Dan,
I understand it is the case today but as EPD mode is a totally “new” format for 802.11 should we try to unified as much as possible with the Ethernet format including encrypted
frame format ? This was the initial sense of my question …
OK, it's a new format, but it's still an 802.11 frame. It's gonna have the 802.11 MAC header
with the frame control field and the 4 addresses, right? If so then that stuff has to be part of
the AAD and as such it is still an encapsulation using GCM according to the 802.11 standard.
Or am I missing something?
Dan.
/Ph
The current P802.11ak_D0.06 draft version does not mention any requirement in regard to the encryption of EPD formatted frames.
I suggest we add a requirement that EPD formatted frames must be encrypted in a way compatible with IEEE 802.1AE (MACsec) as the 802.3/Ethernet frames are (notice that 802.11ad crypto mode is AES-GCM, the same
crypto mode that the default Cypher Suite of 802.1AE).
While the cipher mode is the same the format of the frames and the location of the AAD passed to
AES-GCM is different. I think if it's an 802.11 frame it should be protected the way the 802.11 standard
If you agree I will post a contribution that could be discuss next Monday during the conf call.
Thank you
/Philippe
Philippe Klein, PhD |Technical Director, Broadband Technology Group
Broadcom Corporation
| Golan House, P.O.Box 273, Airport City, 70100 Israel
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philippe@xxxxxxxxxxxx
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