Use internal implementation for X25519 key exchanges

RNS/Cryptography/__init__.py

@@ -0,0 +1,10 @@
+import os
+import glob
+
+from .Hashes import sha256
+from .HKDF import hkdf
+from .PKCS7 import PKCS7
+from .Fernet import Fernet
+
+modules = glob.glob(os.path.dirname(__file__)+"/*.py")
+__all__ = [ os.path.basename(f)[:-3] for f in modules if not f.endswith('__init__.py')]