ENS on Layer2 @Ethcc 2021

Transcript

1. ENS on Layer 2, Ethcc, July 2021 Makoto Inoue (@makoto_inoue)
2. What is ENS? 0x5a384227b65fa093dec...
3. What is ENS? matoken.eth
4. ENS growth
5. ENS is exploding https://medium.com/etherscan-blog/4-metrics-highlighting-ens-adoption-1db528f8416f
6. Because of lower gas... https://medium.com/etherscan-blog/4-metrics-highlighting-ens-adoption-1db528f8416f
7. Agenda - 1. ENS L2 design considerations - 2. Rollup agnostic L2 integration - 3. What about other EVM compatible chains? - 4. FAQs
8. 1. ENS L2 design considerations
9. Most “L2/EVM chain” strategies - 1. Deploy a copy - 2. Select Network - 3. Add Liquidity incentive
10. ENS “L2/EVM chain” design discussion - 2020 Sep: “A general-purpose L2-friendly” ENS standard by Vitalik - 2020 Oct: “A general-purpose bridge for Ethereum Layer 2s” by Nick - 2021 Apr: “MVP of ENS on L2 with Optimism” by Nick
11. ENS “L2/EVM chain” requirement - 1. No “Switch network” for reading names - 2. No “Pick a winner” (yet) for updating record - 3. Minimise additional trust assumption
12. 2. Rollup agnostic L2 integration
13. ENS architecture recap - 2 requests model - Swappable resolver
14. L2 Gateway - 3 requests model - Set gateway per resolver - Verify with proof at L1
15. Durin: Secure offchain data retrieval (EIP 3668) https://github.com/Arachnid/EIPs/blob/durin/EIPS/eip-3668.md
16. L2 Gateway on Optimism Demo https://www.youtube.com/watch?v=9DdL7AQgXTM
17. L2 Gateway on Optimism https://github.io/ensdomains/l2gateway-demo
18. L2 Gateway on Optimism https://github.io/ensdomains/l2gateway-demo
19. L2 Gateway on Optimism https://github.io/ensdomains/l2gateway-demo
20. L2 Gateway on Optimism https://github.io/ensdomains/l2gateway-demo
21. L2 Gateway on Optimism https://github.io/ensdomains/l2gateway-demo
22. 3.What about other EVM compatible chains?
23. TVL on EVM compatible chains https://twitter.com/richwgalvin/status/1399992712451948546
24. - Bridge gateway - App gateway - Trusted gateway Alternatives
25. - Bridge signs the data - Verify bridge signer, not data Bridge Gateway EVM Chain
26. Bridge Gateway Pros - Retains the same security assumption Cons - Bridge needs modification/extension - Signer must be verifiable on L1
27. - Name owner hosts the gateway - Name owner signs data - Verify name ownership, not data App Gateway EVM Chain
28. App Gateway Pros - No dependencies to the bridges Cons - Each App has to host own gateway - Less trustless
29. - Name owner hosts the gateway - Name owner signs data - Verify name ownership, not data Trusted Gateway DBMS
30. Trusted Gateway Pros - No ENS registry required off L1 Cons - Trusted - No NFT
31. Comparison
32. - Registration & Renewal gas cost - Subdomains - Ownership 4. FAQs
33. Q. Does Registration & Renewal gas cost become cheaper?
34. A: Not for now - Registry will remain on L1 - Resolver can move to a L2 - Use of Subdomain
35. Q. Can I create subdomains on L2 and sell as NFT?
36. - Wildcard support - https://eips.ethereum.org/EIPS/eip-2544 - NFT support on Registry A: Yes
37. Q. How do I prevent from transferring the same name to different owners on L1 and L2?
38. - ENS is NFT - NameWrapper for subdomains A: Lock your name on a cross chain bridge
39. For more information Makoto Inoue / @makoto_inoue https://github.com/ensdomains/l2gateway-demo https://discuss.ens.domains/c/feature-request/layer2/10 https://discord.gg/AskZbFx https://github.com/Arachnid/EIPs/blob/durin/EIPS/eip-3668. md