🔗 Encryption Hub

🌐 Also available at: enchub.pages.dev

🚀 Simple Encryption Portal – Release V.1.0.4

🔐 Project Overview

Simple Encryption Portal is a comprehensive, client-side web application for secure message, image, file encryption, utilities, and advanced steganography.
All cryptographic operations occur in the browser, ensuring maximum privacy.

Key capabilities:

Encrypt and decrypt text messages using passwords.
Hide secret messages inside images (steganography).
Encrypt files of any format (images, videos, audio, documents).
Generate strong passwords from weak passwords using PBKDF2 with 10,000,000 iterations (Encryption 5.0).
Convert text to Morse code (Encryption 6.0).
Quantum-ready module with Argon2id KDF and XChaCha20-Poly1305 encryption for robust, modern security (Encryption 7.0).

The portal includes seven modules, each offering unique functionality.

🏗️ Modules & Features

🔹 1. Encryption (Basic Text Encryption)

Encrypt messages with AES-GCM using a password.
Client-Side Security: All operations happen locally; no data leaves the browser.
Robust Key Derivation: PBKDF2 with 100,000 iterations and random salt.
Random IV ensures identical messages encrypted with the same password produce different outputs.
User-friendly interface with password toggle, copy-to-clipboard, and loading spinner.
Portable Base64 output combining salt, IV, and ciphertext.

🔹 2. Encryption 2.0 (Steganography)

Hide encrypted messages inside images without altering quality.
Combines AES encryption with pixel-level message embedding.
Asynchronous processing prevents browser freezing; includes progress bar.
Modern, dark-themed UI with vibrant accents.
Self-contained HTML, CSS, and JS for easy portability.

🔹 3. Encryption 3.0 (File Encryption)

Encrypts any file type (images, videos, audio, documents).
AES-GCM ensures confidentiality and integrity.
PBKDF2 with high iteration counts for password security.
Client-side operation; files never leave the browser.
Responsive UI with clear buttons, file input, and password toggle.
Real-time status messages, loading spinner, and error handling.

🔹 4. Encryption 4.0 (Unified Modern Encryption)

Combines text encryption, steganography, and PDF export.
Password-protected PDFs embed encrypted messages.
LSB image steganography hides payloads without altering visual quality.
AES-GCM with 1,000,000 PBKDF2 iterations, unique IVs, and random salts.
Client-side processing with progress indicators.
Modern, responsive UI with dark theme, gradient accents, glassmorphism cards, hover/focus effects, and inline error handling.

🔹 5. Encryption 5.0 (Ultra-Strong Password Generation)

Converts weak passwords into high-entropy, strong passwords.
Uses PBKDF2 with 10,000,000 iterations and random salt.
Derived passwords can be used to encrypt messages, files, and PDFs.
AES-GCM ensures secure encryption using generated strong passwords.
Client-side operation guarantees privacy.
Real-time progress feedback for high iteration counts.
Base64 output for easy copying and storage.

🔹 6. Encryption 6.0 (Morse Code Converter)

Converts text to Morse code and vice versa.
Fast, client-side processing for instant results.
Simple, intuitive interface for easy use.
Dark-themed UI for comfortable viewing.
Copy-to-clipboard and clear output features.

🔹 7. Encryption 7.0 (Quantum-Ready & Advanced Steganography)

Employs Argon2id key derivation for quantum-resistant security.
Uses XChaCha20-Poly1305 for modern authenticated encryption.
Advanced PNG steganography: hide encrypted data inside images with high robustness.
All operations are performed client-side for maximum privacy.
Modern, responsive UI with accessibility features.

🎯 Project Goal

Provide a secure, versatile, and user-friendly encryption platform that combines:

Strong password generation
Text encryption
Hidden message embedding in images
Password-protected PDF export
Full file encryption
Modern, responsive UI

📦 Full Release Summary

Module	Features
Encryption	Text encryption, AES-GCM, PBKDF2, client-side security, copy-to-clipboard
Encryption 2.0	Image steganography, AES encryption, asynchronous processing, progress bar, self-contained
Encryption 3.0	File encryption (all formats), AES-GCM, PBKDF2, client-side, responsive UI, dynamic feedback
Encryption 4.0	Unified encryption, PDF export, LSB steganography, AES-GCM with PBKDF2, client-side, progress feedback, modern UI
Encryption 5.0	Weak-to-strong password generation, AES-GCM encryption, PBKDF2 (10M iterations), client-side, progress feedback
Encryption 6.0	Text → Morse code converter, fast, client-side, dark UI
Encryption 7.0	Advanced Argon2id KDF, XChaCha20-Poly1305, robust PNG steganography, modern UI

🔑 Technical Highlights

Client-Side Security: All operations occur in-browser; no data is transmitted.
AES-GCM Encryption: Provides secure and authenticated encryption.
PBKDF2 Key Derivation: Up to 10,000,000 iterations with random salt.
Random IVs: Ensures unique ciphertext even for identical inputs.
Responsive Design: Tailwind CSS, dark theme, hover effects, accessible layout.
User-Friendly Features: Copy-to-clipboard, password toggles, progress indicators, clear error messages.
Self-Contained & Portable: Entire app is in one HTML file.
Robust Steganography & PDF Security: Hidden payloads in images and password-protected PDFs.
Asynchronous Processing: Handles large files and images without freezing.

📜 License

Licensed under GNU GPL v3.0.

Free to use, modify, and distribute.
All derivatives must also use GPL-3.0 license.

Full license: GNU GPL 3.0

⚖️ Third-Party Libraries

Library	Purpose	License	Website
Tailwind CSS	Styling & UI	MIT	https://tailwindcss.com
Google Fonts - Inter	Font	SIL Open Font License	https://fonts.google.com/specimen/Inter
CryptoJS	AES encryption	MIT	https://cdnjs.com/libraries/crypto-js
pdfmake	PDF generation & password protection	MIT	pdfmake
PDF.js	PDF reading & payload extraction	Apache 2.0	PDF.js
libsodium.js	XChaCha20-Poly1305 (module 7.0)	ISC	https://github.com/jedisct1/libsodium.js
hash-wasm	Argon2id (module 7.0)	MIT	https://github.com/DenisCarriere/hash-wasm

✅ Conclusion

Simple Encryption Portal V1.0.4 is a secure, modern, and portable encryption platform combining:

Robust cryptography
Steganography
Strong password generation
Password-protected PDF export
File encryption
Responsive, user-friendly design

Visit the live portal: 🔗 Encryption Hub | enchub.pages.dev

🌐 Deployment (GitHub Pages)

This repository includes an automated deployment workflow for GitHub Pages.

Alternative deployment: https://enchub.pages.dev/

How it works:

On every push to main, GitHub Actions builds and deploys the site to GitHub Pages.
Workflow file: .github/workflows/pages.yml

One-time setup in GitHub:

Go to Repository Settings → Pages
Set Source to “GitHub Actions”
Save. After the next push, the site will be live at:
- https://azeem117.github.io/EncryptionHub.github.io/

Local preview (optional):

You can open index.html directly in a browser, or use a simple static server for proper service worker behavior.

📱 Install as a PWA

Encryption Hub is installable as a Progressive Web App (PWA):

Supports offline usage with a service worker and precached assets
Includes a web app manifest and icons

To install:

Visit the live site in Chrome/Edge.
Click the “Install App” icon in the address bar (or use browser menu → Install).

Notes:

An offline.html fallback is included for when the network is unavailable.
A custom 404.html is provided for GitHub Pages routing.

📦 Android app (Trusted Web Activity)

Want this as a Play Store app? Use Path A (TWA) to wrap the PWA:

High level steps:

Generate an Android project with Bubblewrap from your manifest.
Create assetlinks.json using your app’s SHA-256 fingerprint.
Host /.well-known/assetlinks.json in a separate repo azeem117/azeem117.github.io (required for project pages), or on a custom domain.
Build a signed AAB in Android Studio and publish to Play.

See TWA-GUIDE.md in this repo for PowerShell commands and step-by-step instructions, plus assetlinks.template.json ready to edit.