diff --git a/ssh/README.md b/ssh/README.md
index f22c528..37c6b22 100644
--- a/ssh/README.md
+++ b/ssh/README.md
@@ -12,3 +12,6 @@ Fingerprints :
 
     2048 SHA256:pBz+GiWLvh9uccTB50HTQOCXhD9FZPFin/tfGKAZApQ Altinea CA (RSA)
     256 SHA256:TagxgsBxZhHFWiThYwe/hZSYjLBOHWBY2Ss0QsipmTw noc@altinea.fr (ED25519)
+
+To display :
+    ssh-keygen -E sha256 -lf ~/.ssh/authorized_keys