SwiftyFox Password Generator & Encryption Tool

A professional, secure password generator and encryption tool built with SwiftUI for iOS, macOS, and watchOS.

🔐 Features

Password Generator

• Cryptographically Secure: Uses SecRandomCopyBytes() for truly random password generation
• Customizable Length: Generate passwords from 1 to 100 characters
• Multiple Character Types:
  • Vowels (a, e, i, o, u, y)
  • Consonants (b, c, d, f, g, h, j, k, l, m, n, p, q, r, s, t, v, w, x, y, z)
  • Numbers (0-9)
  • Special Characters (!#$&*-_.)
  • Uppercase Letters
  • Lowercase Letters
  • Emojis (wide variety of emoji characters)
  • Custom Characters (user-defined)
• One-Click Copy: Automatically copies generated passwords to clipboard
• Professional UI: Modern, intuitive interface with clear visual feedback

Encryption Tool

• Military-Grade Security: Uses ChaCha20-Poly1305 encryption
• Emoji Encoding: Optional emoji-based encoding for visual appeal
• Secure Key Generation: Automatically generates cryptographically secure keys
• Easy Decryption: Simple decryption with generated keys
• Input Validation: Comprehensive validation prevents errors

📸 Screenshots

iPad

Password Generator interface on iPad

Encryption tool interface on iPad

macOS

macOS Password Generator with two-column layout

macOS Encryption tool with professional desktop interface

🛡️ Security Features

• Cryptographically Secure Random Generation: Replaced deprecated arc4random() with SecRandomCopyBytes()
• Input Validation: Comprehensive validation for all user inputs
• Error Handling: Graceful error handling with user-friendly messages
• Network Security: App Transport Security (ATS) enforcement
• Memory Safety: Eliminated force unwrapping and potential memory issues
• Code Sanitization: User input sanitization to prevent injection attacks

📱 Platform Support

• iOS: Full support with optimized touch interface
• macOS: Native desktop experience with professional window management
• watchOS: Compact interface for quick password generation

🎨 Professional Design

• Modern UI: Clean, professional interface following Apple's design guidelines
• Responsive Layout: Adapts to different screen sizes and orientations
• Accessibility: Supports VoiceOver and other accessibility features
• Dark Mode: Automatic dark mode support
• Professional Icons: SF Symbols integration for consistent iconography

🔧 Technical Details

Security Implementation

• Random Number Generation: SecRandomCopyBytes() with CryptoKit fallback
• Encryption: ChaCha20-Poly1305 via CryptoKit
• Input Validation: Comprehensive bounds checking and sanitization
• Error Handling: Proper error handling without information disclosure

Architecture

• SwiftUI: Modern declarative UI framework
• CryptoKit: Apple's cryptographic framework
• Security Framework: System-level security services
• Cross-Platform: Single codebase for all Apple platforms

📋 Requirements

• iOS 14.0+ / macOS 11.0+ / watchOS 7.0+
• Xcode 12.0+
• Swift 5.3+

🚀 Installation

1. Clone the repository
2. Open SwiftyFoxPassword.xcodeproj in Xcode
3. Select your target platform (iOS, macOS, or watchOS)
4. Build and run the project

🔒 Privacy & Security

• No Data Collection: The app does not collect or transmit any user data
• Local Processing: All encryption/decryption happens locally on device
• No Network Access: App operates entirely offline (except for optional external link)
• Secure Storage: No passwords or keys are stored persistently

📄 License

Copyright © 2021 Alexander Fox. All rights reserved.

🤝 Contributing

This is a personal project, but suggestions and feedback are welcome. Please ensure any contributions maintain the security standards and professional quality of the application.

📞 Support

For questions or support, please refer to the security documentation in SECURITY_FIXES.md for detailed information about the security implementation.

---

Built with ❤️ and 🔐 for secure password generation and encryption