Simple tool for keeping track of your one-time pad two-factor authentication keys; basically a command-line version of the canonical google authenticator app. The library uses GnuPG (through h-gpgme) to safely encrypt your secret keys. The first time you use it, it asks for a fingerprint to use for encryption. Currently GnuPG 1.x has some issues with h-gpgme when asking for keys, so GPG 2.x is recommended. Keys are stored, encrypted, at `~/.otp-auth.vault` by default.