regen key

poorman_handshake/asymmetric/__init__.py

@@ -1,7 +1,9 @@
+import os
 from binascii import hexlify, unhexlify
 from os.path import isfile
 from typing import Union
 
+import shutil
 from Cryptodome.PublicKey import RSA
 from Cryptodome.Random import get_random_bytes
 
@@ -33,13 +35,16 @@ def __init__(self, path: str = None, key_size: int = 2048):
             path (str, optional): Path to load or save the private key.
             key_size (int, optional): Size of the RSA key in bits (default is 2048).
         """
+        self.private_key = None
         if path and isfile(path):
             try:
                 self.load_private(path)
             except ValueError:
-                print(f"file does not look like a valid RSA key, please delete it and try again. '{path}'")
-                raise
-        else:
+                shutil.copy(path, path + ".bak")
+                os.remove(path)
+                print(f"file does not look like a valid RSA key, regenerating '{path}'")
+
+        if not self.private_key:
             self.private_key = RSA.generate(key_size)
             if path:
                 self.export_private_key(path)