diff --git a/faucet/auth/pub/diag.pub b/faucet/auth/pub/diag.pub
new file mode 100644
index 00000000..b29d4af3
--- /dev/null
+++ b/faucet/auth/pub/diag.pub
@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICvi83M2V/DHUthDPzoiYgLhc8wlWNBFaBsYOWi115f4 diag