Autofirma has a certificate selection dialog with an extended functionality with respect to that of Microsoft Windows 7, which it emulates. This dialogue has the following aspect, with its different numbered parts:

These parts of the dialogue are:

1. Refresh button: Reload the certificates from the current store. Very useful when a smart card is inserted after the application load and we want the dialog to reflect this change. You can also use the F5 key to refresh the dialog.
2. Certificate store change button: If we do not want to use the default certificate store, we can select another store here from the options available for the current operating system (PKCS#12/PFX, Firefox store, DNI, etc). In the case of Linux, it will not be possible to change between the system store and the browser store (the corresponding one will be loaded to the browser), although it can be changed to DNIe or file stores. If this button does not appear or it appears disabled, the operation will have been executed from a web application and this will have restricted the use to the currently loaded store.
3. Help button: Open the web browser with this same help page.
4. Certificate view button: Allows you to switch between multiple certificate views. This option is aimed at users who use certificate types from which they cannot see the relevant data using the default view.
5. Certificate line: For each certificate available to sign, a line with its details is displayed.

In turn, the certificate line has the following elements:

1. Certificate icon: Some types of certificates (DNIe, FNMT, CNP, etc.) You will have a custom icon to distinguish it more easily, the rest will appear a generic icon.
2. Certificate Data: Information extracted from the certificate to allow its identification. By default, the common name of the certificate owner will be highlighted and the issuer and the declared use will also be displayed. However, these data may change depending on the selected certificate view.
3. Certificate Validity Period: Time interval within which the certificate is valid. If the certificate is outside the validity period or is about to expire, a warning icon will be displayed next to the certificate icon.
4. Link to view certificate details: Call the operating system’s certificate viewer.

The first element, the certificate icon, will be displayed with different appearance depending on the state of the certificate’s validity period:

Certificate in period of validity.

Certificate about to expire.

Expired or not yet valid certificate. The application may configure that these types of certificates are not displayed.