FreeOTP

• Download the FreeOTP APP for your phone (Thank You Red Hat)
  • APPLE IOS (source)
  • ANDROID (source)
• Install oathtool

sudo apt-get install oathtool

• generate a random key

freddy@runner:~$ head -10 /dev/urandom | md5sum
5f0b169ad85959ddacc7fc1c28804ef9  -

• Run oathtool to get the base32 version of the key

freddy@runner:~$ oathtool --totp --verbose 5f0b169ad85959ddacc7fc1c28804ef9
Hex secret: 5f0b169ad85959ddacc7fc1c28804ef9
Base32 secret: L4FRNGWYLFM53LGH7QOCRACO7E======
Digits: 6
Window size: 0
Step size (seconds): 30
Start time: 1970-01-01 00:00:00 UTC (0)
Current time: 2019-09-04 15:24:00 UTC (1567610640)
Counter: 0x31D53F8 (52253688)

125184

• go to https://freeotp.github.io/qrcode.html to create a QR code to load into the app