From stick at satoshilabs.com Mon Aug 28 07:02:04 2023 From: stick at satoshilabs.com (Pavol Rusnak) Date: Mon, 28 Aug 2023 09:02:04 +0200 Subject: [Lightning-dev] TOR enabled dynamic Proof of Work defense for onion services In-Reply-To: References: Message-ID: Maybe the anonymous credentials approach from [2] could use credentials loaded with sats? On Mon 28. 8. 2023 at 0:36, Ren? Pickhardt wrote: > Dear fellow Lightning Network developers, > > given the congestion problems with channels (aka jamming) that we are > facing and the various proposals and ideas that are floating around I > thought I quickly notify you that the TOR project has introduced a dynamic > proof of work system together with a market based auction system for > bandwidth via a priority queue to fight DoS attacks [0]. While our problems > differ I think there are still enough similarities to justify the relevance > of this mail. > > In their technical document [1] they mention that their new patch cannot > defend against a large botnet and suggest that anonymous credentials [2] > among other techniques should be investigated. > > Personal comment: I am a bit surprised that while they obviously looked at > Bitcoin they seemed to not have seriously considered to just use Bitcoin > (for example via Lightning Network paywalls) or a mining protocol directly. > Instead they argue that the auction based bids are more suitable than a > static difficulty target as used in bitcoin. However IMHO the dynamic > properties of their auction mechanism could easily have been achieve by the > amount of sats being offered instead of a dynamic proof of work solution. > > With kind regards Rene Pickhardt > > > [0] > https://blog.torproject.org/introducing-proof-of-work-defense-for-onion-services/ > > [1] > https://gitlab.torproject.org/tpo/core/torspec/-/blob/main/proposals/327-pow-over-intro.txt > > [2] https://lists.torproject.org/pipermail/tor-dev/2020-March/014198.html > _______________________________________________ > Lightning-dev mailing list > Lightning-dev at lists.linuxfoundation.org > https://lists.linuxfoundation.org/mailman/listinfo/lightning-dev > -------------- next part -------------- An HTML attachment was scrubbed... URL: