Index: PyKMIP-0.10.0/kmip/services/server/crypto/engine.py
===================================================================
--- PyKMIP-0.10.0.orig/kmip/services/server/crypto/engine.py
+++ PyKMIP-0.10.0/kmip/services/server/crypto/engine.py
@@ -588,10 +588,10 @@ class CryptographyEngine(api.Cryptograph
             backend = default_backend()
 
             try:
-                public_key = backend.load_der_public_key(encryption_key)
+                public_key = serialization.load_der_public_key(encryption_key)
             except Exception:
                 try:
-                    public_key = backend.load_pem_public_key(encryption_key)
+                    public_key = serialization.load_pem_public_key(encryption_key)
                 except Exception:
                     raise exceptions.CryptographicFailure(
                         "The public key bytes could not be loaded."
@@ -935,14 +935,14 @@ class CryptographyEngine(api.Cryptograph
                 params["unsafe_skip_rsa_key_validation"] = False
 
             try:
-                private_key = backend.load_der_private_key(
+                private_key = serialization.load_der_private_key(
                     decryption_key,
                     None,
                     **params,
                 )
             except Exception:
                 try:
-                    private_key = backend.load_pem_private_key(
+                    private_key = serialization.load_pem_private_key(
                         decryption_key,
                         None,
                         **params,
@@ -1500,10 +1500,10 @@ class CryptographyEngine(api.Cryptograph
                 )
 
             try:
-                public_key = backend.load_der_public_key(signing_key)
+                public_key = serialization.load_der_public_key(signing_key)
             except Exception:
                 try:
-                    public_key = backend.load_pem_public_key(signing_key)
+                    public_key = serialization.load_pem_public_key(signing_key)
                 except Exception:
                     raise exceptions.CryptographicFailure(
                         "The signing key bytes could not be loaded."