[noise] Pre-shared Secret - preventing DoS, and ensuring post-quantum PFS

[Jason A. Donenfeld]

On Thu, Nov 12, 2015 at 12:27 AM, Alex <alex at centromere.net> wrote:
> Would it be possible to prevent DoS attacks by using some pre-shared
> secret in the write/readMessage payload of the first message that Alice
> delivers to Bob?

I'm interested in having DoS protection *before* the first DH is
computed, since this is the computationally expensive part of the
protocol.