#Rijndael (AES) Encryption for MoonBit

#Overview

• Pure MoonBit Implementation: A complete implementation written entirely in MoonBit for maximum portability and safety
• Native C Implementation: High-performance implementation using optimized C code with MoonBit bindings for maximum speed

#Key Features

• Multiple Key Sizes: Full support for AES-128, AES-192, and AES-256
• Block Cipher Operations: Standard 16-byte block encryption and decryption
• Dual Implementations: Choose between pure MoonBit or native C performance
• Memory Safe: Proper bounds checking and safe memory operations
• Standard Compliant: Implements the official AES specification
• Optimized Performance: Lookup table optimizations and native code for speed
• Cross-Platform: Works across all MoonBit supported targets

#Project Structure

#📦 Rijndael Package

• Complete AES encryption/decryption in safe MoonBit code
• Support for all standard key sizes (128/192/256-bit)
• Efficient lookup table implementation
• Cross-platform compatibility
• Memory-safe operations with bounds checking

#🚀 Native Package

• Optimized C implementation from the original Rijndael authors
• Maximum performance through native compilation
• Direct byte array operations
• Minimal overhead for high-throughput applications
• Secure memory handling

#Use Cases

• Secure Data Storage: Encrypt sensitive data before storing to disk or database
• Network Communication: Secure data transmission over networks
• File Encryption: Protect files and documents with strong encryption
• Cryptographic Protocols: Building block for more complex security protocols
• Educational: Learn about symmetric encryption and the AES algorithm

#Performance Considerations

• Native Package: Choose for maximum performance in computational-intensive applications
• Rijndael Package: Choose for maximum portability and when native compilation isn't available
• Memory Usage: Both implementations use minimal memory with efficient key scheduling
• Block Processing: Designed for efficient processing of multiple blocks

#Security Notes

• This implementation provides the core AES algorithm
• For production use, implement appropriate:
  • Padding schemes (PKCS#7, etc.)
  • Modes of operation (CBC, CTR, GCM, etc.)
  • Proper key management and secure storage
  • Initialization vectors (IVs) for non-ECB modes

#Development and Testing

# Run all tests
moon test

# Test specific package
moon test --package rijndael
moon test --package native

# Build for different targets
moon build --target native    # For native performance
moon build --target wasm     # For WebAssembly targets

#Documentation

• 📖 Rijndael Package Documentation - Pure MoonBit implementation
• 📖 Native Package Documentation - High-performance C implementation

#License

#Contributing