[Lightning-dev] Blinded channel observation

[Joseph Poon]

Hi Rusty,

Yeah, interesting thoughts!

On Fri, Aug 12, 2016 at 01:17:52PM +0930, Rusty Russell wrote:
> I still don't understand why use an HMAC-of-tx instead of just the txid?
> What does it gain?

I'm presuming you need to index by txid to see if there needs to be a
penalty transaction broadcast, so you can't use that as a secret key.

-- 
Joseph Poon