diff --git a/ipaserver/dcerpc.py b/ipaserver/dcerpc.py
index f00141bb5..2d9d7e557 100644
--- a/ipaserver/dcerpc.py
+++ b/ipaserver/dcerpc.py
@@ -44,11 +44,10 @@ from samba import credentials
 from samba.dcerpc import security, lsa, drsblobs, nbt, netlogon
 from samba.ndr import ndr_pack, ndr_print
 from samba import net
+from samba import arcfour_encrypt
 import samba
 # pylint: enable=import-error
 
-from cryptography.hazmat.primitives.ciphers import Cipher, algorithms
-from cryptography.hazmat.backends import default_backend
 import ldap as _ldap
 from ipapython import ipaldap
 from dns import resolver, rdatatype
@@ -168,13 +167,6 @@ def assess_dcerpc_exception(num=None, message=None):
     return errors.RemoteRetrieveError(reason=reason)
 
 
-def arcfour_encrypt(key, data):
-    algorithm = algorithms.ARC4(key)
-    cipher = Cipher(algorithm, mode=None, backend=default_backend())
-    encryptor = cipher.encryptor()
-    return encryptor.update(data)
-
-
 class ExtendedDNControl(LDAPControl):
     # This class attempts to implement LDAP control that would work
     # with both python-ldap 2.4.x and 2.3.x, thus there is mix of properties