diff --git a/services/core/java/com/android/server/pm/UserManagerService.java b/services/core/java/com/android/server/pm/UserManagerService.java
index 05228ec..9b47beb 100644
--- a/services/core/java/com/android/server/pm/UserManagerService.java
+++ b/services/core/java/com/android/server/pm/UserManagerService.java
@@ -26,6 +26,7 @@
 import android.app.Activity;
 import android.app.ActivityManager;
 import android.app.ActivityManagerInternal;
+import android.app.ActivityManagerNative;
 import android.app.AppGlobals;
 import android.app.IActivityManager;
 import android.app.IStopUserCallback;
@@ -857,6 +858,25 @@
         }
     }
 
+    /**
+     * Evicts a user's CE key by stopping and restarting the user.
+     *
+     * The key is evicted automatically by the user controller when the user has stopped.
+     */
+    @Override
+    public void evictCredentialEncryptionKey(@UserIdInt int userId) {
+        checkManageUsersPermission("evict CE key");
+        final IActivityManager am = ActivityManagerNative.getDefault();
+        final long identity = Binder.clearCallingIdentity();
+        try {
+            am.restartUserInBackground(userId);
+        } catch (RemoteException re) {
+            throw re.rethrowAsRuntimeException();
+        } finally {
+            Binder.restoreCallingIdentity(identity);
+        }
+    }
+
     @Override
     public UserInfo getUserInfo(int userId) {
         checkManageOrCreateUsersPermission("query user");