Started to try and organize all the authentication code.

SecureCore/Authentication/ByteGenerator.cs

@@ -0,0 +1,13 @@
+using System.Security.Cryptography;
+
+namespace SecureCore.Authentication
+{
+    public static class ByteGenerator
+    {
+        public static void GetRandomBytes(ref byte[] bytes)
+        {
+            using var rng = RandomNumberGenerator.Create();
+            rng.GetBytes(bytes);
+        }
+    }
+}