F8 Tools Encryption Compression Zip Workflow

• OptimizedAES — AES-256 encryption/decryption
• Key and IV management
• Random IV generation (null IV = random)
• Used by StorageManager for local data encryption
• Used by AssetManager for AB encryption

// Example: Create encryptor
var aes = new Util.OptimizedAES(key: "AES_Key", iv: null);
byte[] encrypted = aes.Encrypt(plainBytes);
byte[] decrypted = aes.Decrypt(encrypted);

Compression (Compression.cs)

• Data compression/decompression
• GZip format support
• Used for reducing data transmission size

Zip (ZipHelper.cs)

• ZIP archive creation and extraction
• File-level ZIP operations
• Used by SyncStreamingAssetsLoader for Android StreamingAssets access
• Based on ICSharpCode.SharpZipLib

Workflow

1. For encryption: create OptimizedAES instance with key.
2. For compression: use Compression class static methods.
3. For ZIP: use ZipHelper for archive operations.
4. Storage module uses encryption automatically when configured.
5. No module initialization needed — pure utility classes.

Common error handling

Output checklist

• Encryption/compression/ZIP method selected.
• Keys and parameters configured.
• Error handling for crypto/IO failures.