Obscura

Obscura is a simple and secure web-based encryption tool for encrypting and decrypting messages using AES-GCM. Built with HTML, CSS, and JavaScript, it enables users to securely encode text using a passphrase and decode it only with the correct key.

Live Demo

Features

• AES-256 GCM encryption in the browser
• Password-based key derivation using PBKDF2
• Toggle visibility for passphrases
• Responsive and modern UI
• No backend required — everything runs client-side

Getting Started

Clone the Repository

git clone https://github.com/your-username/obscura.git
cd obscura

Open in Browser

Simply open the index.html file in your browser.

File Structure

obscura/
├── index.html        # Main HTML structure
├── style.css         # Styling (modern & responsive)
├── script.js         # Encryption logic and UI interactivity
└── README.md         # Project documentation

Security

Obscura uses:

• AES-GCM (256-bit) for authenticated encryption
• PBKDF2 with SHA-256 and 100,000 iterations for key derivation
• A unique 12-byte IV for every encryption operation

All operations are performed in-browser using the Web Crypto API. No data is sent to any server.

⚠️ This tool is designed for demonstration and light personal use. For enterprise or mission-critical applications, consult a security professional.

License

MIT License

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Made with ❤️ for privacy.