stegosaurust 0.2.4

A steganography tool, written in rust.
Documentation

Publish CI

Disclaimer

:warning: This is a program I made for fun. There is no guarantee of cryptographic security or data confidentiality. Please do not use this for sensitive information. If you do, you are doing so at your own risk. :warning:

Introduction

Easily encode messages in images:

echo "text to hide" | stegosaurust --output encoded_image.png image.png
stegosaurust --decode encoded_image.png

See the examples below for more usage.

Usage

🦕 stegosaurust 0.2.4
Hide text in images, using rust.

USAGE:
    stegosaurust [FLAGS] [OPTIONS] <image>

FLAGS:
    -b, --base64              Encode/decode with base64
    -c, --check-max-length    Check max message size that can be encoded with options given. Does not perform the
                              encoding, acts like a dry-run
    -d, --decode              Decode a message from the image
    -h, --help                Prints help information
    -V, --version             Prints version information

OPTIONS:
    -i, --input <input>        Input file to encode, stdin if not present
    -k, --key <key>            Encrypt the text before encoding it with AES-256-CBC
    -N, --max-bit <max-bit>    Maximum bit to possible modify (1-4)
    -m, --method <method>      Method to use for encoding (lsb,rsb) [default: lsb]
    -o, --output <output>      Output file, stdout if not present
    -s, --seed <seed>          Seed for random significant bit encoding

ARGS:
    <image>    Input image

Installation

From crates.io

cargo install stegosaurust

From Source

Build and install the executable from the source code.

git clone https://github.com/jj-style/stegosaurust.git
cd stegosaurust
cargo install --path .

# to uninstall :(
cargo uninstall stegosaurust

Examples

The examples below assume you have installed the program (see here) and are in the repository directory (if not installed use cargo run -- instead of stegosaurust).

# how much data can we fit in an image...
stegosaurust --decode examples/example-2.png | mpv -

# is there something hidden in the logo on the README?
stegosaurust --decode .github/logo.png | xargs python -c "import webbrowser,sys; webbrowser.open(sys.argv[1])"