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Steganography Implementation in Java

/ 1 min read

Last Updated:
java, steganography, data hiding

The purpose of this project is to implement steganography techniques in Java, allowing for the hiding of data within images.

Project Benefits

This project is useful for learning and experimenting with steganography, particularly in understanding how data can be hidden and detected within image files.

How the Project Works

The project includes methods for hiding data using the Least Significant Bit (LSB) technique and analyzing hidden data using steganalysis methods like the Chi-square attack.

  1. Selecting and opening a file:

    Selecting and opening a file

  2. Adding “hidden text”:

    Adding "hidden text"

  3. Saving a file with modified data:

    Saving a file with modified data

  4. Selecting and opening a file with modified data:

    Selecting and opening a file with modified data

  5. Search for hidden text in a modified data file:

    Search for hidden text in a modified data file

Repository and Installation

GitHub Repository

To use the project:

  1. Clone the repository:

    Terminal window
    git clone https://github.com/Fulldroper/stegonography
    cd stegonography

  2. Compile and run the Java application:

    Terminal window
    javac Steganography.java
    java Steganography

Project Workflow

  1. File Selection: Choose and open the image file.

    BufferedImage image = ImageIO.read(new File("path/to/image"));

  2. Data Hiding: Embed secret text into the image using LSB.

    byte[] imageBytes = ((DataBufferByte) image.getRaster().getDataBuffer()).getData();
    // Embed data

  3. Data Extraction: Retrieve hidden text from the modified image.

    // Extract data from imageBytes
    String hiddenText = extractHiddenText(imageBytes);

Skills Gained

  • Implementing steganography techniques in Java
  • Understanding data hiding and extraction methods
  • Analyzing hidden data using steganalysis