Personal Knowledge Assistant

""" Utilities Package This package contains shared utility functions and helpers used across the application. Security and Privacy Utilities: - Comprehensive encryption utilities with AES-256-GCM and ChaCha20-Poly1305 - Secure caching layer with encryption and audit trails - Key derivation functions using PBKDF2, Scrypt, and Argon2 - File-based encrypted storage with integrity verification - Secure random number generation and salt management - Privacy-compliant data handling with configurable retention Features: - Production-ready encryption with multiple algorithms - Secure cache with memory and file backends - Automatic data cleanup and retention policies - Comprehensive audit logging for all operations - Thread-safe implementations with async support """ from .encryption import ( EncryptionAlgorithm, KeyDerivationFunction, EncryptionMetadata, SecureRandom, KeyDerivation, SymmetricEncryption, AsymmetricEncryption, SecureStorage, EncryptionManager, get_encryption_manager ) from .cache import ( CacheBackend, CacheAccessType, CacheEntry, CacheAuditEntry, LRUCache, SecureCache, get_secure_cache ) __all__ = [ # Encryption classes and enums "EncryptionAlgorithm", "KeyDerivationFunction", "EncryptionMetadata", "SecureRandom", "KeyDerivation", "SymmetricEncryption", "AsymmetricEncryption", "SecureStorage", "EncryptionManager", # Encryption functions "get_encryption_manager", # Cache classes and enums "CacheBackend", "CacheAccessType", "CacheEntry", "CacheAuditEntry", "LRUCache", "SecureCache", # Cache functions "get_secure_cache" ]