evmSignMessage

Ethereum: sign message

Asks device to sign a message using the private key derived by the given BIP32 path.

• This method is for EIP-191 personal_sign messages
• Do not use it for EIP-712 typed data signing
• For EIP-712 (v3 / v4), use evmSignTypedData

const result = await HardwareSDK.evmSignMessage(connectId, deviceId, params);

Params

Optional common params

• path - required string | Array<number> minimum length is 3. read more
• messageHex - required string message to sign in hex text
• chainId - optional number identifies the target Ethereum network and helps distinguish different chain configurations. Reference.

Example

// Original message
const message = "Hello Ukey Wallet";

// Convert to hex
const messageHex = Buffer.from(message).toString("hex");

HardwareSDK.evmSignMessage(connectId, deviceId, {
  path: "m/44'/60'/0'/0/1",
  messageHex: messageHex,
  chainId: 1,
});

Result

{
    success: true,
    payload: {
        address: string, // returned address
        signature: string,
    }
}

Error

{
    success: false,
    payload: {
        error: string, // error message
        code: number // error code
    }
}