https://github.com/gsurma/steganographer

Script allowing hiding or revealing data in image files.
https://github.com/gsurma/steganographer

cryptography java steganography

Last synced: 3 months ago
JSON representation

Script allowing hiding or revealing data in image files.

• Host: GitHub
• URL: https://github.com/gsurma/steganographer
• Owner: gsurma
• License: mit
• Created: 2018-03-30T22:26:47.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2021-07-09T08:55:23.000Z (about 4 years ago)
• Last Synced: 2025-05-12T19:42:02.587Z (5 months ago)
• Topics: cryptography, java, steganography
• Language: Java
• Homepage: https://gsurma.github.io
• Size: 1.03 MB
• Stars: 26
• Watchers: 2
• Forks: 4
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE

Awesome Lists containing this project

README

          


  



# Steganographer

> Steganography is the practice of concealing a file, message, image, or video within another file, message, image, or video.

## About

Simple java script allowing hiding or revealing data in image files using Least Significant Bit algorithm.

## Example

### Before

![](Example/sample_image.png)

Original image







### After

![](Example/sample_image_with_hidden_message.png)

Image with the hidden message: `Very secret message!`

## How to use

### Encoding

1. Prepare a container image (preferably .png) 

2. Prepare a secret message

3. Encode `java Steganographer  `

4. Steganographer should output an image file with hidden message 

### Decoding

1. Prepare an image with hidden message

2. Decode `java Steganographer `

3. Steganographer should output a text file with hidden message

## Author

**Greg (Grzegorz) Surma**

[**PORTFOLIO**](https://gsurma.github.io)

[**GITHUB**](https://github.com/gsurma)

[**BLOG**](https://medium.com/@gsurma)