From dave at dtrt.org Sat Jan 5 16:31:02 2019 From: dave at dtrt.org (David A. Harding) Date: Sat, 5 Jan 2019 11:31:02 -0500 Subject: [Lightning-dev] An Argument For Single-Asset Lightning Network In-Reply-To: References: <20190104210505.t3ou2rpmgsmo2ku4@email> Message-ID: <20190105163102.gaikxjxoxbufeijc@email> On Sat, Jan 05, 2019 at 07:01:18AM +0000, ZmnSCPxj wrote: > Good morning David, > > What happens if the exchange node only sends its preimage towards the > payer and not towards the payee? > > If the payer and payee do not coordinate, then it becomes possible for > the exchange node to take the funds without the payee gaining the > ability to claim the payment. Indeed, you are correct. I had not taken that into account. Thinking about it from that perspective, there's no way to depend on proof that the someone received something (e.g. a payment) without also allowing the receiver to block payment by refusing to provide that proof. That invalidates this class of solutions. Thanks, -Dave -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 833 bytes Desc: not available URL: