From ZmnSCPxj at protonmail.com Fri Nov 9 11:32:27 2018 From: ZmnSCPxj at protonmail.com (ZmnSCPxj) Date: Fri, 09 Nov 2018 11:32:27 +0000 Subject: [Lightning-dev] Link-level payment splitting via intermediary rendezvous nodes In-Reply-To: References: Message-ID: Good morning Johan, > C must also make sure the detour route stays within the fee limit of course. This is indeed quite correct. Contrariwise, if the detour route charges a fee that is even just 0.001 satoshi lower than the fee that C would charge, then it would still be rational to make this attempt: there is a nonzero change to earn 0.001 satoshi, whereas the alternative (fail the route) earns C 0 fees. Another issue, is that the by inserting the switch-ephemeral-keys hop packet, a hop packet at the end may be pushed off, and C cannot know this. However, the same argument applies: the alternative is earning 0 fees. Christian Decker pointed out that the D->C->A cycle could be rebalanced so that the C<->D link could pass the payment through. However, this has the slight disadvantage. If the route actually terminates to a payee further off at F, and it fails between F and E, then C has already paid for the rebalancing. Using this technique, C neither earns nor loses money. This also increases the anonymity set, of rendez-vous routing. A rendez-vous supporting node may be used, not for rendez-vous, but instead, this link-level payment rerouting. Regards, ZmnSCPxj -------------- next part -------------- An HTML attachment was scrubbed... URL: