Command line 2FA. 2-Factor verification similar to Google Authenticator and Authy.

• TOTP (Time-based One-Time Password) using oathtool
• Encrypt / Decrypt using OpenSSL
• Copies to clipboard using pbcopy (macOS); xclip (Linux)
• Supports both encrypted and plain-text token files

• oathtool (http://www.nongnu.org/oath-toolkit/)
• OpenSSL
• xclip (Linux)

brew install oath-toolkit gawk

$ sudo aptitude install -y oathtool libpam-oath
$ sudo aptitude install -y xclip

• otp - Read tokenfile and generate TOTP value
• otp-lockfile - Encrypt tokenfile, remove original file and save new encrypted tokenfile in tokenfiles/ folder
• otp-unlockfile - Decrypt tokenfile and save to plain-text file
• /tokenfiles/ - Empty folder

otp

$ ./otp amazon		# reads tokenfiles/amazon[.enc]
Password:
29: 123456
59: 008256
10: 193842 

Paste value from clipboard

• ⌘ Command + v
• Ctrl + v

otp-lockfile

$ echo "1234 1234 1234" > tokenfiles/amazon

$ ./otp-lockfile tokenfiles/amazon
Password:
Verify Password: 

$ ls -l tokenfiles/