On Thu, Dec 31, 2015 at 08:16:35PM +0000, Blumenthal, Uri - 0553 - MITLL wrote:
> I think Watson made a good point about "omittable checks". ‎If an
> implementation A "omits" this mechanism, it should fail session
> establishment.

Well, here is one scheme that I can't break myself and has no checks one
can just "omit":

PMS = SHA-512(A|B|DHF(a,B)) = SHA-512(A|B|DHF(b,A))

Where a and b are the private keys and A and B are the public keys
and DHF is X25519 or X448.



-Ilari

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