I am working on a dapp that needs to verify users' signatures. When testing with Metamask, everything is okay.
When trying to verify a signature from Ambire wallet, I get "Error: invalid signature string" from ethers.utils.verifyMessage
For example, here's the signature I got from Ambire:
0xf1b5f561c1914d513f4020edd397f729836e26eeae8f1b9e4070d134492aa38b0a84b9d7cefe06f180ade91595fd74c4e845c2b8c2d053fa57785fdf5ec5dca31c01
When I try to verify it this happens
require('ethers').utils.verifyMessage('test', '0xf1b5f561c1914d513f4020edd397f729836e26eeae8f1b9e4070d134492aa38b0a84b9d7cefe06f180ade91595fd74c4e845c2b8c2d053fa57785fdf5ec5dca31c01')
Uncaught:
Error: invalid signature string (argument="signature", value="0xf1b5f561c1914d513f4020edd397f729836e26eeae8f1b9e4070d134492aa38b0a84b9d7cefe06f180ade91595fd74c4e845c2b8c2d053fa57785fdf5ec5dca31c01", code=INVALID_ARGUMENT, version=bytes/5.6.1)
Any idea if this can be solved?
In order to support smart wallets like Ambire, Gnosis Safe, Argent, and others, you need to implement EIP 1271.
Ambire universal signature verification, supporting:
Simple eth_sign verification using @ambire/signature-validator
const ethers = require('ethers')
const { verifyMessage } = require('@ambire/signature-validator')
const provider = new ethers.providers.JsonRpcProvider('https://polygon-rpc.com')
async function run() {
// Replace `ethers.verifyMessage(message, signature) === signer` with this:
const isValidSig = await verifyMessage({
signer: '0xaC39b311DCEb2A4b2f5d8461c1cdaF756F4F7Ae9',
message: 'My funds are SAFU with Ambire Wallet',
signature: '0x9863d84f3119ac01d9e3bf9294e6c0c3572a07780fc7c49e8dc913806f4b1dbd4cc075462dc84422a9b981b2556f9c9197d76da7ba3603e53e9300869c574d821c',
// this is needed so that smart contract signatures can be verified
provider,
})
console.log('is the sig valid: ', isValidSig)
}
run().catch(e => console.error(e))