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tfat

Two factor authentication(2FA) command line tool.

Written with Rust for learning programming language, see Go version here.

Features

  • Save config file with AES-GCM encrypt
  • Save data with password.
  • Generate random password if user set an empty password
  • Auto refresh code per seconds
  • Copy the code to clipboard if it generate a new one

Build

cargo build --release

Usage

Get code

tfat
# output:
# 602887 (remain 5s)

This will keep refreshing and count down the remaining time. When a new code is generated, it will copy to clipboard automatically. Press Ctrl+C to quit.

tfat
# output:
# 1. one
# 2. two
# 3. three
# select: 1
# 698030 (remain 16s)

If there are more than one account, it will list all of them. You can select any one you like to check its code.

Add an account

tfat add <ACCOUNT> <SECRET>

If it is the first time to add an account, it will ask you to set a password. Of course you can set it with an empty string, it still gonna generate a random password to protect your data. In that case when you get code, it will decrypt automatically without asking password from you. So anyone who use your computer may get a code from it. It is recommended to set a password manually.

delete an account

tfat delete <ACCOUNT>

Change password

tfat password

Help

$ tfat help
tfat 0.1.0
Two Factor Authentication(2FA) Tool - Help to generate 2FA code

USAGE:
    tfat [SUBCOMMAND]

FLAGS:
    -h, --help       Prints help information
    -V, --version    Prints version information

SUBCOMMANDS:
    add         Add a new account
    delete      Delete an account
    help        Prints this message or the help of the given subcommand(s)
    password    Change password