Create utilities/secure_memory.py

utilities/secure_memory.py

@@ -0,0 +1,45 @@
+from pathlib import Path
+
+# Encrypted memory session handler template
+memory_isolation_code = """
+# secure_memory.py
+
+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')
+        if user_id not in self.sessions:
+            self.sessions[user_id] = []
+        self.sessions[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)  # adjust dtype if needed
+            decrypted_vectors.append(vector)
+        return decrypted_vectors
+
+    def get_encryption_key(self) -> bytes:
+        return self.key
+"""
+
+# Save it as a Python file
+memory_path = Path("/mnt/data/secure_memory.py")
+memory_path.write_text(memory_isolation_code)
+
+memory_path