bna is a command line interface to the python-bna library. It can store and manage multiple authenticators, as well as create new ones.

Two things to remember:

• Using an authenticator on the same computer as the one you're playing on is not secure.
• It is impossible (without knowing the secret) to import an existing authenticator

Configuration is stored in ~/.config/bna/bna.conf. You can pass a different config directory with --config=~/.bna.conf for example.

$ bna --new

If you do not already have an authenticator, it will be set as default. You can pass --set-default otherwise.

$ bna
01234567
$ bna EU-1234-1234-1234
76543210

$ bna --restore-code
Z45Q9CVXRR
$ bna --restore EU-1234-1234-1234 ABCDE98765
Restored serial EU-1234-1234-1234

import bna
try:
        # region is EU or US
        # note that EU authenticators are valid in the US, and vice versa
        serial, secret = bna.requestNewSerial("US")
except bna.HTTPError as e:
        print("Could not connect:", e)

# Get and print a token
token, timeRemaining = bna.getToken(secret=secret)
print(token)

# print a new token every time the previous one expires
from time import sleep
while True:
        token, timeRemaining = bna.getToken(secret=secret)
        print(token)
        sleep(timeRemaining)