Add support for EIP-1271 signature verification by default on verifySignature()

[Sednaoui]

Hello all,

Most dapp developers that implements some sort of signature verification assumes the account is an EOA and not a smart contract account like Gnosis Safe, Argent, or emerging account abstraction wallets like Candide. Not implementing valid signature verification properly breaks many dapps and prevent users of smart contract wallets from using these dapps.

We are proposing to change the default function for signature verification to be both compatible with EIP-1271 but also compatible with the regular ecrecover signature.

• Viem already supports such functionality with the util verifyMessage
• There's a open PR for etherjs v6 to support it

What do you think? Is this something you would be interested to support, or review if others work on it?

[Sednaoui]

bump. Thoughts?