Log successful Open() requests

server/server.go

@@ -28,6 +28,7 @@ func (s *keyStoreServer) handleOpen(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	log.Printf("decrypted key for %s", req.Username)
 	serverutil.EncodeJSONResponse(w, &emptyResponse)
 }