From pm+lists at acinq.fr Tue Jul 23 14:44:28 2019 From: pm+lists at acinq.fr (Pierre) Date: Tue, 23 Jul 2019 16:44:28 +0200 Subject: [Lightning-dev] [PROPOSAL] Removal of proposal to make CSV delay symmetric In-Reply-To: <87tvbi8sd8.fsf@rustcorp.com.au> References: <877e8hmom0.fsf@rustcorp.com.au> <87tvbi8sd8.fsf@rustcorp.com.au> Message-ID: > > How would bruteforcing on the CSV delay be different from a BIP32 > > wallet with look ahead keys? Especially given that we could try with > > most probable values first. > > It's a big multiplier, given that CSV can be specified by the > counterparty. If you accept up to 1024 and offer 144, that's 880 > variants to look for, per key. We could restrict CSV delays to be e.g. multiple of 144 between 144 and 2016, that would only be 14 variants. > It also can't be done with a normal bitcoin wallet, which is unfortunate > too. Right, but it wouldn't work for local commitments. I feel like alignment of incentives should prevail here. Funds are still recoverable with just the seed, which is a huge improvement vs what is currently the case.