[messaging] Addition in place of concatenation in TripleDH

Jeff Burdges burdges at gnunet.org
Wed Aug 26 17:17:43 PDT 2015

TripleDH combines the three DH values by feeding them into a hash

What would be lost by using addition in the curve instead?
I.e. KDF( DH(a,b) + DH(A,b) + DH(a,B) )

I won't be doing this myself, but it appears this would be somewhat
faster as the DH operations can be done together, so I got curious.


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