Your key is a small file provided and most likely named: <your-name>.key.json. Click the button above and browse for your key file - if you want the browser device to remember, then tick the box first before selecting your file This key should only be stored on trusted devices, and in detachable usb drives when using non-trusted devices. If you choose for this device to remember your key, then all other devices/browsers previously set to remember will be effectively logged out.
Note: This is an administration only area. Unauthorised entry is prohibited.