[noise] Haskell implementation

[Alex]

Hello all:

I've been working on a Noise implementation in Haskell[1], and I am
happy to report that it is now fairly functional. It supports all 19
handshakes, but only ChaChaPoly1305-Curve25519-SHA256 at this time.

I've also set up a publicly available "echo server" which creates a
Noise pipe that echos back anything you send to it. If you're
interested in trying it out, feel free to contact me off-list.

-- 
Alex

[1] https://github.com/centromere/cacophony