BIP32Node.py 文件源码

def from_master_secret(class_, master_secret, netcode='BTC'):
        """Generate a Wallet from a master password."""
        I64 = hmac.HMAC(key=b"Bitcoin seed", msg=master_secret, digestmod=hashlib.sha512).digest()
        return class_(netcode=netcode, chain_code=I64[32:], secret_exponent=from_bytes_32(I64[:32]))