matt on Nostr: At least directly with lightning, it’s not immediately obvious how you could reveal ...
At least directly with lightning, it’s not immediately obvious how you could reveal a key that only allowed you to spend up to some limit. The normal setup in lightning is your key can sign for the whole 2-of-2 channel balance. With pre-setup you could have some extra output on the commitment transaction and a new sub-channel that you could give the recipient control over, but you’d need to have that set up in advance for the exact amount you want to send (and it’d be a fairly complicated protocol extension for everyone to support). Probably just use ecash for the initial minute and then pay with lightning for further minutes after you’re online.
Published at
2024-10-21 12:01:52Event JSON
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"content": "At least directly with lightning, it’s not immediately obvious how you could reveal a key that only allowed you to spend up to some limit. The normal setup in lightning is your key can sign for the whole 2-of-2 channel balance. With pre-setup you could have some extra output on the commitment transaction and a new sub-channel that you could give the recipient control over, but you’d need to have that set up in advance for the exact amount you want to send (and it’d be a fairly complicated protocol extension for everyone to support). Probably just use ecash for the initial minute and then pay with lightning for further minutes after you’re online.",
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