https://github.com/crazelu/steganograph

A Dart library for hiding messages in images using Least Significant Bit steganography
https://github.com/crazelu/steganograph

dart least-significant-bit-steganography lsb steganography

Last synced: 3 months ago
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A Dart library for hiding messages in images using Least Significant Bit steganography

• Host: GitHub
• URL: https://github.com/crazelu/steganograph
• Owner: Crazelu
• License: apache-2.0
• Created: 2022-05-28T01:38:56.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2024-08-30T22:58:07.000Z (5 months ago)
• Last Synced: 2024-11-01T18:51:34.921Z (3 months ago)
• Topics: dart, least-significant-bit-steganography, lsb, steganography
• Language: Dart
• Homepage:
• Size: 769 KB
• Stars: 11
• Watchers: 1
• Forks: 3
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

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README

        
# Steganograph

***

Steganograph is a Dart library which supports hiding mesages in images using Least Significant Bit steganography.

## Install 🚀

In the `pubspec.yaml` of your Flutter/Dart project, add the following dependency:

```yaml 

dependencies:

  steganograph: ^2.0.0

```

## Import the package in your project 📥

```dart

import 'package:steganograph/steganograph.dart';

```

## Embed messages 🔏

```dart

// this returns an image file with the resulting image unaltered

// except now it has some secret embedded message

File? stegoImageFile = await Steganograph.cloak(

    image: File('sample_image.jpg'),

    message: 'Some secret message',

    outputFilePath: 'result.png',

  );

```

Or

```dart

Uint8List? stegoImageBytes = await Steganograph.cloakBytes(

    imageBytes: Uint8List(...), // cover image byte array

    message: 'Some secret message',

    outputFilePath: 'result.png',

  );

```

## Extract embedded messages 📨

```dart

String? message = await Steganograph.uncloak(File('result.png'));

// Or

String? message = await Steganograph.uncloakBytes(stegoImageBytes);

```

## Supported image formats 🗂

Currently, you can embed messages in:

* PNG

* JPEG

* WebP

* BMP

* GIF

* ICO

* PNM

* PSD

## Contributions 🫱🏾‍🫲🏼

Feel free to contribute to this project.

If you find a bug or want a feature, but don't know how to fix/implement it, please fill an [issue](https://github.com/Crazelu/steganograph/issues).  

If you fixed a bug or implemented a feature, please send a [pull request](https://github.com/Crazelu/steganograph/pulls).