Moved a couple of folders and wrote some code

Assets/Packages/FishNet/Runtime/Authenticating/Authenticator.cs

@@ -0,0 +1,51 @@
+using FishNet.Connection;
+using FishNet.Managing;
+using System;
+using UnityEngine;
+
+namespace FishNet.Authenticating
+{
+    /// <summary>
+    /// When inherited from this can be used to create a custom authentication process before clients may communicate with the server.
+    /// </summary>
+    public abstract class Authenticator : MonoBehaviour
+    {
+        #region Public.
+        /// <summary>
+        /// True if this authenticator has been intiialzied.
+        /// </summary>
+        public bool Initialized { get; private set; }
+        #endregion
+
+        #region Protected.
+        /// <summary>
+        /// NetworkManager for this Authenticator.
+        /// </summary>
+        protected NetworkManager NetworkManager { get; private set; }
+        #endregion
+         
+        /// <summary>
+        /// Called when authenticator has concluded a result for a connection. Boolean is true if authentication passed, false if failed.
+        /// Server listens for this event automatically.
+        /// </summary>
+        public abstract event Action<NetworkConnection, bool> OnAuthenticationResult;
+
+        /// <summary>
+        /// Initializes this script for use.
+        /// </summary>
+        /// <param name="networkManager"></param>
+        public virtual void InitializeOnce(NetworkManager networkManager)
+        {
+            NetworkManager = networkManager;
+            Initialized = true;
+        }
+
+        /// <summary>
+        /// Called on the server immediately after a client connects. Can be used to send data to the client for authentication.
+        /// </summary>
+        /// <param name="connection">Connection which is not yet authenticated.</param>
+        public virtual void OnRemoteConnection(NetworkConnection connection) { }
+    }
+
+
+}

Assets/Packages/FishNet/Runtime/Authenticating/Authenticator.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: a9adfb82407774645a1f455ceb9298f9
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: