From lloyd.fourn at gmail.com Mon May 3 01:01:48 2021 From: lloyd.fourn at gmail.com (Lloyd Fournier) Date: Mon, 3 May 2021 11:01:48 +1000 Subject: [Lightning-dev] Recovery of Lightning channels without backups In-Reply-To: <20210428201438.a2xa57hlqmfhqeor@ganymede> References: <20210428201438.a2xa57hlqmfhqeor@ganymede> Message-ID: On Thu, 29 Apr 2021 at 06:15, David A. Harding wrote: > why can't she sign a message that gets gossiped across the network that > says, "if you have a channel with node_id 0xa11ce, please close it now"? > Hi David, As a user this would be an improvement. There are a few downsides though: 1. It creates a new gossip message that can be spammed. 2. It is not easy to figure out whether it worked or not (maybe the person I had my channel with is offline?). 3. This is incompatible with covert recovery schemes like in [1] whereas what I propose here builds towards making such schemes possible in the future. (3) is also a problem with just doing encrypted backups -- going around looking for backups means you tell everyone that you are in recovery mode. [1]: https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-December/002912.html LL -------------- next part -------------- An HTML attachment was scrubbed... URL: