numpy refactor

src/user.py

@@ -1,9 +1,11 @@
 from dataclasses import dataclass, field
+
+import numpy as np
+
 from src.models import EncipheredNKode
 from src.customer_cipher import CustomerCipher
 from src.user_cipher import UserCipher
 from src.user_keypad import UserKeypad
-from src.utils import xor_lists
 
 
 @dataclass
@@ -14,10 +16,10 @@ class User:
     user_keypad: UserKeypad
     renew: bool = field(default=False)
 
-    def renew_keys(self, set_xor: list[int], prop_xor: list[int]):
+    def renew_keys(self, set_xor: np.ndarray, prop_xor: np.ndarray):
         self.renew = True
-        self.cipher.set_key = xor_lists(self.cipher.set_key, set_xor)
-        self.cipher.prop_key = xor_lists(self.cipher.prop_key, prop_xor)
+        self.cipher.set_key = np.bitwise_xor(self.cipher.set_key, set_xor)
+        self.cipher.prop_key = np.bitwise_xor(self.cipher.prop_key, prop_xor)
 
     def refresh_passcode(self, passcode_attr_idx: list[int], customer_attributes: CustomerCipher):
         self.cipher = UserCipher.create(