update sequence.md.

Author: ffreddow

Diff for: sequence.md

@@ -58,9 +58,9 @@ sequenceDiagram
     Note left of Charger Frontend: Holds: <br> - login-key
     Charger Frontend->>Backend: Request encrypted secret
     Backend->>Charger Frontend: Respond with encrypted secret and salt for it
-    Note over Charger Frontend: Derive key with user password and salt and<br>decrypt secret with it.
+    Note over Charger Frontend: Derive secret-key with user password and salt.
     Note over Charger Frontend: Generate WireGuard keys
-    Note left of Charger Frontend: Holds: <br> - decrypted secret <br> - secret-key <br> - login-key <br> - unencrypted WireGuard keys
+    Note left of Charger Frontend: Holds: <br> - encrypted secret <br> - secret-key <br> - login-key <br> - unencrypted WireGuard keys
     Charger Frontend->>Charger: Save configuration containing<br>unencrypted secret, login key<br>and WireGuard keys
     Note over Charger: Encrypt WireGuard keys used for<br>remote connections using the secret.
     Note left of Charger: Saves: <br> - unencrypted secret <br> - login-key <br> - unencrypted WireGuard keys