Ethereum

SIWE, SIWF, SIWSW (Coinbase Smart Wallet)

to support logging into apps as a contract:

can we get more adoption of ERC-1271 this time around? or find a simpler standard?

or is sending a tx to auth with every app sufficiently realistic on L2s and L3s? (probably not)

or does CB SW already have this solved somehow?

lead PM @ chainalysis via /nash acquisition.

prev: head of product @ foundation.twitter.

looks like CB SW isValidSignature will validate passkey signatures

looks like CB SW isValidSignature will validate passkey signatures

https://github.com/coinbase/smart-wallet/blob/facf1a5a00a393c859c77a7cff38de1e557c393f/src/CoinbaseSmartWallet.sol#L316

maybe with CB SW, all passkey accounts can sign on behalf of the contract, bypassing the need for the contract itself to “sign”?

There is a new standard for smart account signatures, 6492. The problem is that now smart contract accounts that haven't even been deployed might need to log in. It's not simpler, but it's not bad:

I work at the posts office

terminally.online

(SIWE, SIWF and Coinbase Smart Wallet are all compatible with this standard)

There is a new standard for smart account signatures, 6492. The problem is that now smart contract accounts that haven't even been deployed might need to log in. It's not simpler, but it's not bad: https://eips.ethereum.org/EIPS/eip-6492

You need both 1271 and 6492, given 4337 smart contract wallets can exist before they are deployed. Btw we support both at @dynamic which is why you can auth with a pre-deployed smart contract wallet on demo.dynamic.xyz

Dynamic.xyz | One SDK for every wallet interaction. Extensive multichain and third-party wallet support. |

Try our demo: https://demo.dynamic.xyz