[noise] Notes and thoughts from RWC2017

[Trevor Perrin]

On Sun, Jan 15, 2017 at 3:07 PM, zaki at manian.org <zaki at manian.org> wrote:
> The blockchain scaling solution Lightning network is using Noise at the p2p
> layer
>
> http://lightning.community/release/software/lnd/lightning/2017/01/10/lightning-network-daemon-alpha-release/


Oh, beautiful!  There's a very good spec:

https://github.com/lightningnetwork/lightning-rfc/blob/master/08-transport.md


The code is named properly (after a noise - "brontide"):

https://github.com/lightningnetwork/lnd/tree/master/brontide


They're doing Noise_XK_secp256k1_ChaChaPoly_SHA256, so this introduces
a new pattern and a new curve into use.

They specify symmetric-key update in the transport phase.  If people
are going to keep wanting this we might consider saying something
about it in the Noise spec.


Trevor