eap Mailing List: Re: WGLC for eap-keying: EAP server-AAA server

[Jari Arkko (jari.arkko]

Bernard Aboba wrote:

> > 1) EIK | PMK =truncate (MSK, 320)
> > 2) PMK2= truncate (MSK, 160)
>
>
> Both of these definitions imply that the PMK is a truncated version of 
> the MSK.   Perhaps we can just point that out, and reference 802.11 
> and 802.16e.   There really is not much need to say anything more than 
> that.

Indeed. Or even not say this much. They are using the MSK.
Specific lower layers may do different things to the MSK
(truncate, hash, add seven to it, reverse the bits, ...) but
they are still using it.

> > Existing lower layers already use the MSK directly so I don't think 
> > defining
> > AMSKs derived from this quantity is appropriate in this document.
>
>
> Right.

Agreed.

--Jari