ImageCrypto is a Ruby-based encryption tool that uses an image and a secret key to generate a cryptographic key. It employs AES-256-CBC encryption to securely encrypt and decrypt messages.

Features

• Derives a cryptographic key from an image and a secret key (stored in .env).
• Encrypts and decrypts messages using AES-256-CBC encryption.
• Uses Base64 encoding for handling image data.

Installation

1. Clone the repository:

   git clone https://github.com/yourusername/imagecrypto.git
   cd imagecrypto

2. Install dependencies:

   bundle install

3. Set up environment variables by creating a .env file in the root directory:

   SECRET_KEY=your_secret_key