Hey guys, I was going to start a new thread but after replying to this existing thread on Automatic Authentication Signature. I realised this should be part of the wallet_ methods.
As you can read on the other thread, the proposal describes including a standard authentication signature that would be automatically signed by the Wallet to verify the account ownership on the Dapp side. Perhaps this could be part of either wallet_accounts or wallet_requestAccounts method where we could provide an array of addresses accompanied with a matching signature that would follow a standard authentication message that could be verified by the Dapp. This message doesn’t even require EIP-712 in my opinion, since it’s not meant to be read by the user. Something as simple as doing a personal_sign for a fixed message I own this account that return a JSON RPC response as follows.
{
"id": 1,
"jsonrpc": "2.0",
"result": [
{
"address": "0x9b7b2B4f7a391b6F14A81221AE0920A9735B67Fb",
"signature": "0x30755ed65396facf86c53e6217c52b4daebe72aa4941d89635409de4c9c7f9466d4e9aaec7977f05e923889b33c0d0dd27d7226b6e6f56ce737465c5cfd04be400"
{
]
}