// returns a new array with the xor of a ^ b
export function xor(a: Uint8Array, b: Uint8Array): Uint8Array {
  if (a.length != b.length) {
    throw new Error("Error: incompatible sizes");
  }

  const ret = new Uint8Array(a.length);

  for (let i = 0; i < a.length; i++) {
    ret[i] = a[i] ^ b[i];
  }

  return ret;
}