wallet.py 文件源码

def btc_addr_to_hash_160(btc_addr):
    """ Calculates the RIPEMD-160 hash from a given Bitcoin address

    :param btc_addr: Bitcoin address.
    :type btc_addr: str
    :return: The corresponding RIPEMD-160 hash.
    :rtype: hex str
    """

    # Base 58 decode the Bitcoin address.
    decoded_addr = b58decode(btc_addr)
    # Covert the address from bytes to hex.
    decoded_addr_hex = hexlify(decoded_addr)
    # Obtain the RIPEMD-160 hash by removing the first and four last bytes of the decoded address, corresponding to
    # the network version and the checksum of the address.
    h160 = decoded_addr_hex[2:-8]

    return h160