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| import tempfile | |
| import os | |
| # Your memory session code as a string | |
| memory_isolation_code = """ | |
| from cryptography.fernet import Fernet | |
| import numpy as np | |
| import base64 | |
| class SecureMemorySession: | |
| def __init__(self, encryption_key: bytes = None): | |
| self.key = encryption_key or Fernet.generate_key() | |
| self.fernet = Fernet(self.key) | |
| self.sessions = {} | |
| def encrypt_vector(self, user_id: int, vector: np.ndarray) -> str: | |
| vector_bytes = vector.tobytes() | |
| encrypted = self.fernet.encrypt(vector_bytes) | |
| encoded = base64.b64encode(encrypted).decode('utf-8') | |
| self.sessions.setdefault(user_id, []).append(encoded) | |
| return encoded | |
| def decrypt_vectors(self, user_id: int) -> list: | |
| if user_id not in self.sessions: | |
| return [] | |
| decrypted_vectors = [] | |
| for encoded in self.sessions[user_id]: | |
| encrypted = base64.b64decode(encoded) | |
| decrypted = self.fernet.decrypt(encrypted) | |
| vector = np.frombuffer(decrypted, dtype=np.int64) | |
| decrypted_vectors.append(vector) | |
| return decrypted_vectors | |
| def get_encryption_key(self) -> bytes: | |
| return self.key | |
| """ | |
| def create_secure_memory_module(): | |
| # Create a temporary file that acts as our secure_memory module | |
| with tempfile.NamedTemporaryFile("w+", suffix="_secure_memory.py", delete=False) as tmp: | |
| tmp.write(memory_isolation_code) | |
| tmp_path = tmp.name | |
| # Insert the temp file directory into sys.path so it can be imported | |
| import sys | |
| module_dir = os.path.dirname(tmp_path) | |
| if module_dir not in sys.path: | |
| sys.path.insert(0, module_dir) | |
| return os.path.basename(tmp_path).replace(".py", "") | |