How do I deal with the message "The app digital signature has expired"
Applicable Products:
- App Center
- Digital Signature
The message "The app digital signature has expired" means that the mentioned application is old and that its digital signature was expired and requires renewing by updating the application to the latest version.
QNAP uses digital signatures to validate apps created by QNAP or QNAP-trusted publishers. The use of digital signatures prevents the unauthorized tampering of apps that may lead to security risks. If updating to the latest version of the application still indicates that the digital signature is expired, this could indicate the followings:
- The application has reached its end of support, in this case, it is recommended to remove the application if it is not essential for your NAS use.
- The application haven't applied newer digital signature, contact the Application Author to renew its signature.
Do note that even with the digital signature expired, it will not affect the existing services of the applications.
Follow the steps below:
Log in to QTS/QuTS hero as an administrator.
Go to App Center.
Locate the app and click the app Icon.
The app detail window opens.Click "Digital Signature".
The Digital Signature Details window opens.Find "Issued by"
If the app is Issued by QNAP
Click the Update button to update the app.
If you can't find the update button, upgrade QTS/QuTS hero to the latest version.
Note: The app with no update/remove button is a built-in system application, updating the app requires upgrading the QTS/QuTS hero firmware.
Contact QNAP support if you have tried upgrading the QTS/QuTS hero firmware.
If the app is Issued by Third Party, contact the Application Author to renew their digital signature.
- Update the QTS/QuTS hero firmware since Third Party Digital Signature starts to support after QTS/QuTS hero 5.0.1.
- Contact Third Party Application Author to renew the Digital Signature
