verify chip0002 signMessage

verify.tsx

// yarn add bls-signatures clvm clvm_tools
import loadBls from 'bls-signatures';

function verifySignature(bls: any, publicKey: string, signature: string, message: string) {
  let bytes_to_verify = null;
  if (message.slice(0, 2) === '0x') {
    bytes_to_verify = clvm.Bytes.from(message, 'hex');
  } else {
    bytes_to_verify = clvm.Bytes.from(message, 'utf8')
  }

  const synthetic_message = clvm_tools.sha256tree(
    clvm.SExp.to("Chia Signed Message").cons(bytes_to_verify) as any
  ).raw();
  const is_valid = bls.AugSchemeMPL.verify(
    bls.G1Element.from_bytes(clvm.Bytes.from(publicKey, 'hex').data()),
    synthetic_message,
    bls.G2Element.from_bytes(clvm.Bytes.from(signature, 'hex').data()),
  )
  return is_valid
}

async run() {
  let publicKey = '0x8266b475a8e43ab2ac32f49d7cf7835b7f45b8c242288f6226e275ea5ccc29f199333ba894ba3782b963c79ea65fe792';
  let signature = '0xb8a24306ff71851b241c101e4265a8711b56f0f570c9d35b6465db7d218765503d109386220ae722702813a77c6fee5404fc2905612a8f78a25d8fb7d05afda7974e92fcbed02abbbcaec9e8ffb2cabe5721b9a322b666be6d9b1ae939089082';
  let message = '0x8266b475a8e43ab2ac32f49d7cf7835b7f45b8c242288f6226e275ea5ccc29f199333ba894ba3782b963c79ea65fe792';
  const bls = await loadBls();
  const is_valid = verifySignature(bls, publicKey, res, values.message)
  console.log(is_valid);
}