Initial commit

lab5-account-manager-security/core/crypto_manager.py

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+from cryptography.fernet import Fernet
+from pathlib import Path
+
+
+class CryptoManager:
+    """
+    Класс для симметричного шифрования и расшифрования файлов.
+    """
+
+    def generate_key(self) -> bytes:
+        return Fernet.generate_key()
+
+    def encrypt_file(self, file_path: str, key: bytes, output_path: str) -> None:
+        fernet = Fernet(key)
+        data = Path(file_path).read_bytes()
+        encrypted = fernet.encrypt(data)
+        Path(output_path).write_bytes(encrypted)
+
+    def decrypt_file(self, file_path: str, key: bytes, output_path: str) -> None:
+        fernet = Fernet(key)
+        data = Path(file_path).read_bytes()
+        decrypted = fernet.decrypt(data)
+        Path(output_path).write_bytes(decrypted)