SandfordAE.github.io // Systems & Engineering Hub

Personal engineering hub, secure developer workbench, and systems architecture portfolio hosted on GitHub Pages. Built with pure HTML5, CSS3, and JavaScript with zero external framework build dependencies.

---

🏛️ Architecture & Gateway Structure

• index.html (Root Hub): Professional landing page serving as the primary gateway, featuring live system status terminals, module navigation, and placeholders for future expansion (Project Vault, Engineering Notes).
• Dev_Forge/ (Developer Workbench): High-performance, zero-trust client-side developer sandbox containing:
  1. Secure Keymaker & Token Generator (API keys, salts, UUIDs, diceware, and Ed25519/RSA SSH key pairs with OpenSSH PEM outputs & CLI reference commands).
  2. JSON Formatter & Validator (Live validation, minification, and recursive structural statistics).
  3. JWT Debugger & Inspector (Client-side header/payload decoding and expiration checks).
  4. Regular Expression Live Tester (Real-time regex matching and capture group breakdown).
  5. Client-Side Cryptography & Encoders (SHA-256/512 hashing, Base64, and URL encoding).
  6. Sorting Algorithm Visualizer (Interactive animated Bubble, Selection, and Insertion sorts).

---

🔒 Security & Privacy

• Privacy-First: All computations and key generation happen locally in the browser using Web Crypto APIs (window.crypto.getRandomValues). No telemetry or server transmissions.
• Zero Build Step: Pure static assets, extremely lightweight (< 50KB), instantly deployable on GitHub Pages.

---

🛠️ Local Development & Preview

To run locally, clone the repository and serve with any static web server:

git clone https://github.com/SandfordAE/SandfordAE.github.io.git
cd SandfordAE.github.io

# Using Python 3
python3 -m http.server 8080

# Or Node.js (npx)
npx serve .

Open http://localhost:8080 for the root landing hub, or navigate to /Dev_Forge/ for the workbench.

---

📄 License

Distributed under the MIT License. See LICENSE for more information.