[noise] Raw RNG over the Wire [was: Re: Rev30 branch]

[Jason A. Donenfeld]

Hi Trevor,

> I.e. use e as the seed for any PRNG.

Seems like SipHash would be a good candidate here.

Alternatively, couldn't I just use any of the encrypted payload of the
handshake messages? Those are ChaPoly output and should be uniformly
random.

Jason