Static Key

[lnbc1QWFyb24]

Is it possible to have a static public key so that the remote node can limit the rune to that key? Or does a new key need to be created every time it is initialised with the gen_key method?

[jb55]

yes this will be easy to add and why there is a generate_key step. I planned on having a set_key function as well. I haven't had the need for it yet though which is why it doesn't exist.

[lnbc1QWFyb24]

Yeah the use case I am thinking is for a server to communicate to a core ln node. The idea I am playing with would be a simple API that can be deployed to run in front of your node at home. So it would be great to have a rune with full permissions, but limit it to the public key of the lnsocket.

[jb55]

On Mon, Jul 11, 2022 at 03:52:09PM -0700, Aaron Barnard wrote: Yeah the use case I am thinking is for a server to communicate to a core ln node. The idea I am playing with would be a simple API that can be deployed to run in front of your node at home. So it would be great to have a rune with full permissions, but limit it to the public key of the lnsocket.

kk I'll add this soon

[lnbc1QWFyb24]

Legend thank you!

[jb55]

there is now an lnsocket_setkey in v0.3.2 for setting static keys. Let me know if you run into any issues!

[jb55]

js example here:

lnsocket/test/connection.js

Lines 15 to 20 in dead45a

	const goodkey = "9a5419eacf204a917cf06d5f830e48bc1fcb3e33bb60932e837697c8b7718f6f"
	if (!ln.setkey(goodkey))
	t.ok(false, "expected goodkey to succeed")
	const nodeid = "03f3c108ccd536b8526841f0a5c58212bb9e6584a1eb493080e7c1cc34f82dad71"
	await ln.connect_and_init(nodeid, "24.84.152.187")

[jb55]

hmm it might be good to have a method that gets the pubkey...

[lnbc1QWFyb24]

Awesome will give this a go.

[lnbc1QWFyb24]

Yeah a method that gets the pubkey would be super handy. Saves having to load tiny-secp256k1 in the browser to derive the pub key.

[lnbc1QWFyb24]

Or even a method to get the keypair after generating the key. That way you can use set key in a later session with the private key

[jb55]

yup it's definitely needed... will add in a bit