diff --git a/vendor/gopkg.in/jcmturner/rpc.v1/mstypes/user_session_key.go b/vendor/gopkg.in/jcmturner/rpc.v1/mstypes/user_session_key.go
new file mode 100644
index 0000000..fcf0a5d
--- /dev/null
+++ b/vendor/gopkg.in/jcmturner/rpc.v1/mstypes/user_session_key.go
@@ -0,0 +1,11 @@
+package mstypes
+
+// CypherBlock implements https://msdn.microsoft.com/en-us/library/cc237040.aspx
+type CypherBlock struct {
+	Data [8]byte // size = 8
+}
+
+// UserSessionKey implements https://msdn.microsoft.com/en-us/library/cc237080.aspx
+type UserSessionKey struct {
+	CypherBlock [2]CypherBlock // size = 2
+}