Welcome to Simple Image Encryptor, a tool that allows you to encrypt and decrypt images using DES and AES encryption with two modes: ECB and CBC. This project is a demonstration of how DES and AES encryption works in a simple, easy-to-understand way, making it perfect for learning and experimenting with cryptography!

✨ Key Features:

• DES and AES encryption in ECB and CBC modes
• Encrypt and decrypt image files seamlessly
• Choose between multiple AES key sizes: 128, 192, 256
• Intuitive and easy-to-use

Take a look at how the encryption process transforms your images!

Original Image	Encrypted Image (AES/ECB)	Encrypted Image (AES/CBC)

Original Image	Encrypted Image (DES/ECB)	Encrypted Image (DES/CBC)

Before running the project, ensure you have the following installed:

• Java (JDK 17 or above)
• Maven (for dependency management)
• Git (for version control)
• An image file to test encryption!

1. Clone the repository:

git clone https://github.com/sDanielSilva/SimpleImageEncryptor.git
cd SimpleImageEncryptor

2. Build the project using Maven:

mvn clean install

3. Run the application:

java -jar target/SimpleImageEncryptor.jar

When you run the program, you will be prompted to:

1. Choose the operation:

   • 1 for Encrypt
   • 2 for Decrypt

2. Select the encryption mode:

   • 1 for ECB
   • 2 for CBC

3. Choose the encryption algorithm:

   • 1 for AES
   • 2 for DES

4. If AES, specify the key size (128, 192, 256).

5. Enter the file paths:

   • Encryption Key, Input and Output file paths (for decryption)
   • Input and Output image file path (for encryption)

For example:

Choose operation (1 - Encrypt, 2 - Decrypt): 1
Choose mode (1 - ECB, 2 - CBC): 2
Choose algorithm (1 - AES, 2 - DES): 1
Enter AES key size (128, 192, 256): 256
Enter input file path: images/original.bmp
Enter output file path: images/encrypted.bmp

• Key Sizes: AES supports three key sizes: 128 bits, 192 bits, and 256 bits.
• Modes: You can select either ECB (Electronic Codebook) or CBC (Cipher Block Chaining) mode for encryption.

Here’s a quick look at what’s coming next:

• Support for more encryption algorithms (RSA, IDEA)
• Enhanced UI/UX (GUI for image upload, encryption, and download)

Feel free to fork the project and submit a pull request if you have ideas for improvements, new features, or bug fixes. We'd love to see your contributions!

1. Fork the repository
2. Create a feature branch
3. Commit your changes
4. Push to the branch
5. Create a pull request

• Developer: Daniel Silva
• Email: d.m.silva@ua.pt

If you like the project, please ⭐️ it! Any support is greatly appreciated.