diff --git a/api/advent22_api/core/config.py b/api/advent22_api/core/config.py
index 8811661..03c1730 100644
--- a/api/advent22_api/core/config.py
+++ b/api/advent22_api/core/config.py
@@ -4,15 +4,10 @@ from markdown import markdown
 from pydantic import BaseModel, ConfigDict, field_validator
 
 from .dav.webdav import WebDAV
-from .settings import SETTINGS
+from .settings import SETTINGS, Credentials
 from .transformed_string import TransformedString
 
 
-class User(BaseModel):
-    name: str
-    password: str
-
-
 class Site(BaseModel):
     model_config = ConfigDict(validate_default=True)
 
@@ -60,7 +55,7 @@ class Image(BaseModel):
 
 class Config(BaseModel):
     # Login-Daten für Admin-Modus
-    admin: User
+    admin: Credentials
 
     # Lösungswort
     solution: TransformedString
diff --git a/api/advent22_api/core/dav/webdav.py b/api/advent22_api/core/dav/webdav.py
index 2e60a16..a5d8b67 100644
--- a/api/advent22_api/core/dav/webdav.py
+++ b/api/advent22_api/core/dav/webdav.py
@@ -16,8 +16,8 @@ class WebDAV:
     _webdav_client = WebDAVclient(
         {
             "webdav_hostname": SETTINGS.webdav.url,
-            "webdav_login": SETTINGS.webdav.username,
-            "webdav_password": SETTINGS.webdav.password,
+            "webdav_login": SETTINGS.webdav.auth.username,
+            "webdav_password": SETTINGS.webdav.auth.password,
         }
     )
 
diff --git a/api/advent22_api/core/settings.py b/api/advent22_api/core/settings.py
index 2a4ffc9..d0d2408 100644
--- a/api/advent22_api/core/settings.py
+++ b/api/advent22_api/core/settings.py
@@ -6,6 +6,11 @@ from pydantic_settings import BaseSettings, SettingsConfigDict
 T = TypeVar("T")
 
 
+class Credentials(BaseModel):
+    username: str = ""
+    password: str = ""
+
+
 class DavSettings(BaseModel):
     """
     Connection to a DAV server.
@@ -16,8 +21,10 @@ class DavSettings(BaseModel):
     path: str = "/remote.php/webdav"
     prefix: str = "/advent22"
 
-    username: str = "advent22_user"
-    password: str = "password"
+    auth: Credentials = Credentials(
+        username="advent22_user",
+        password="password",
+    )
 
     cache_ttl: int = 60 * 10
     config_filename: str = "config.toml"
diff --git a/api/advent22_api/routers/_security.py b/api/advent22_api/routers/_security.py
index 6a6eb81..47e14c1 100644
--- a/api/advent22_api/routers/_security.py
+++ b/api/advent22_api/routers/_security.py
@@ -21,7 +21,7 @@ async def user_is_admin(
 
     username_correct = secrets.compare_digest(
         credentials.username.lower(),
-        cfg.admin.name.lower(),
+        cfg.admin.username.lower(),
     )
     password_correct = secrets.compare_digest(
         credentials.password,
diff --git a/api/advent22_api/routers/admin.py b/api/advent22_api/routers/admin.py
index ee5bb4b..cc7fd8a 100644
--- a/api/advent22_api/routers/admin.py
+++ b/api/advent22_api/routers/admin.py
@@ -5,7 +5,11 @@ from pydantic import BaseModel
 
 from advent22_api.core.helpers import EventDates
 
-from ..core.calendar_config import CalendarConfig, DoorsSaved, get_calendar_config
+from ..core.calendar_config import (
+    CalendarConfig,
+    DoorsSaved,
+    get_calendar_config,
+)
 from ..core.config import Config, Image, get_config
 from ..core.depends import (
     TTFont,
@@ -14,7 +18,7 @@ from ..core.depends import (
     get_all_parts,
     get_all_ttfonts,
 )
-from ..core.settings import SETTINGS, RedisSettings
+from ..core.settings import SETTINGS, Credentials, RedisSettings
 from ._security import require_admin, user_is_admin
 
 router = APIRouter(prefix="/admin", tags=["admin"])
@@ -170,24 +174,16 @@ async def put_doors(
     await cal_cfg.change(cfg)
 
 
-@router.get("/dav_credentials")
-async def get_dav_credentials(
-    _: None = Depends(require_admin),
-) -> tuple[str, str]:
-    """
-    Zugangsdaten für WebDAV
-    """
-
-    return SETTINGS.webdav.username, SETTINGS.webdav.password
-
-
-@router.get("/ui_credentials")
-async def get_ui_credentials(
+@router.get("/credentials/{name}")
+async def get_credentials(
+    name: str,
     _: None = Depends(require_admin),
     cfg: Config = Depends(get_config),
-) -> tuple[str, str]:
-    """
-    Zugangsdaten für Admin-UI
-    """
+) -> Credentials:
 
-    return cfg.admin.name, cfg.admin.password
+    if name == "dav":
+        return SETTINGS.webdav.auth
+    elif name == "ui":
+        return cfg.admin
+    else:
+        return Credentials()
diff --git a/ui/src/components/admin/ConfigView.vue b/ui/src/components/admin/ConfigView.vue
index 2e214a7..e0eb483 100644
--- a/ui/src/components/admin/ConfigView.vue
+++ b/ui/src/components/admin/ConfigView.vue
@@ -140,14 +140,14 @@
               <dt>Zugangsdaten</dt>
               <dd class="is-family-monospace">
                 <BulmaSecret
-                  @show="load_credentials(creds.dav, 'admin/dav_credentials')"
+                  @show="load_credentials(creds.dav, 'admin/credentials/dav')"
                   @hide="clear_credentials(creds.dav)"
                 >
                   <span class="tag is-danger">user</span>
-                  {{ creds.dav[0] }}
+                  {{ creds.dav.username }}
                   <br />
                   <span class="tag is-danger">pass</span>
-                  {{ creds.dav[1] }}
+                  {{ creds.dav.password }}
                 </BulmaSecret>
               </dd>
 
@@ -171,14 +171,14 @@
               <dt>UI-Admin</dt>
               <dd class="is-family-monospace">
                 <BulmaSecret
-                  @show="load_credentials(creds.ui, 'admin/ui_credentials')"
+                  @show="load_credentials(creds.ui, 'admin/credentials/ui')"
                   @hide="clear_credentials(creds.ui)"
                 >
                   <span class="tag is-danger">user</span>
-                  {{ creds.ui[0] }}
+                  {{ creds.ui.username }}
                   <br />
                   <span class="tag is-danger">pass</span>
-                  {{ creds.ui[1] }}
+                  {{ creds.ui.password }}
                 </BulmaSecret>
               </dd>
             </dl>
@@ -244,8 +244,14 @@ const admin_config_model = ref<AdminConfigModel>({
 
 const doors = ref<DoorSaved[]>([]);
 const creds = ref<Record<string, Credentials>>({
-  dav: ["", ""],
-  ui: ["", ""],
+  dav: {
+    username: "",
+    password: "",
+  },
+  ui: {
+    username: "",
+    password: "",
+  },
 });
 
 function fmt_puzzle_date(name: keyof AdminConfigModel["puzzle"]): string {
@@ -265,7 +271,9 @@ async function on_open(): Promise<void> {
   void store_update; // discard value
   admin_config_model.value = new_admin_config_model;
   doors.value = new_doors;
-  creds.value = { dav: ["", ""], ui: ["", ""] };
+
+  clear_credentials(creds.value.dav);
+  clear_credentials(creds.value.ui);
 }
 
 async function load_credentials(
@@ -275,14 +283,14 @@ async function load_credentials(
   try {
     const new_creds = await API.request<Credentials>(endpoint);
 
-    creds[0] = new_creds[0];
-    creds[1] = new_creds[1];
+    creds.username = new_creds.username;
+    creds.password = new_creds.password;
   } catch {}
 }
 
 function clear_credentials(creds: Credentials): void {
-  creds[0] = "";
-  creds[1] = "";
+  creds.username = "";
+  creds.password = "";
 }
 </script>
 
diff --git a/ui/src/lib/api.ts b/ui/src/lib/api.ts
index 3ab2270..ea9c7ce 100644
--- a/ui/src/lib/api.ts
+++ b/ui/src/lib/api.ts
@@ -44,12 +44,16 @@ export class API {
   }
 
   public static get creds(): AxiosBasicCredentials {
-    const auth_json = localStorage.getItem(this.creds_key);
-    if (auth_json !== null) {
-      return JSON.parse(auth_json);
-    } else {
-      return { username: "", password: "" };
+    const stored_auth = JSON.parse(localStorage.getItem(this.creds_key) ?? "");
+    if (
+      stored_auth !== null &&
+      Object.hasOwn(stored_auth, "username") &&
+      Object.hasOwn(stored_auth, "password")
+    ) {
+      return stored_auth;
     }
+
+    return { username: "", password: "" };
   }
 
   private static get_axios_config({
diff --git a/ui/src/lib/model.ts b/ui/src/lib/model.ts
index 6f24170..44b684e 100644
--- a/ui/src/lib/model.ts
+++ b/ui/src/lib/model.ts
@@ -64,4 +64,7 @@ export interface ImageData {
   data_url: string;
 }
 
-export type Credentials = [username: string, password: string];
+export interface Credentials {
+  username: string;
+  password: string;
+}
diff --git a/ui/src/lib/store.ts b/ui/src/lib/store.ts
index c1150d1..6c9de5f 100644
--- a/ui/src/lib/store.ts
+++ b/ui/src/lib/store.ts
@@ -111,12 +111,12 @@ export const advent22Store = defineStore({
     },
 
     async login(creds: Credentials): Promise<boolean> {
-      API.creds = { username: creds[0], password: creds[1] };
+      API.creds = creds;
       return await this.update_is_admin();
     },
 
     logout() {
-      API.creds = { username: "", password: "" };
+      API.creds = null;
       this.is_admin = false;
     },