verifyEvmSignature()

verifyEvmSignature(message, signature, options?): Promise<EvmVerifyResult>

Verifies an eip155 CAIP-122 signature from an EOA or a smart contract wallet.

Tries verifyEip191 first. If it fails and options.publicClient is set, falls back to verifyEip1271 with the client of the message chain (one on-chain eth_call), which accepts deployed (EIP-1271) and not yet deployed (ERC-6492) smart contract wallets.

Parameters

message

string

The exact CAIP-122 message string that was signed.

signature

`0x${string}`

The hex-encoded signature returned by the wallet.

options?

EvmVerifyOptions = {}

publicClient (a client or a function of the chain number) enables the contract wallet fallback; skipExpiration is passed to both checks.

Returns

Promise<EvmVerifyResult>

The first successful result (with method), otherwise the failed result of the last check that ran. Never throws.

Example


const result = await verifyEvmSignature(rawMessage, '0xdeadbeef...', { publicClient });
if (result.success) console.log('Authenticated via:', result.method);