0wstego

0wstego \ō-ste-gə\ is a script using zero-width characters to hide secret message inside normal message. It's also capable to reveal secret message encoded by itself for sure :simple_smile:.

How to use

Usage:
  ./0wstega.sh [-d|-f <file_path>]

Options:
                   Without any parameters, encode message
  -d               Decode message
  -f <file_path>   Decode message in file
  -h | --help      Display this help message

• Encode message, recommend piping output text to clipboard directly using xclip or pbcopy:

~$ ./0wstego.sh | xclip -selection clipboard
Visible message: this is a visible sentence.
Secret message to hide: secret message

• Decode message from prompt:

~$ ./0wstego.sh -d
Paste encoded message here: <paste>

• Decode message from file:

~$ ./0wstego.sh -f ~/secret.md

Run tests

~$ bats test/0wstego.bats

Related project

0wstego is heavily inspired by zero-width-detection.