The Portasignatures Service can be accessed using the most widespread web browsers (Chrome, Firefox, Edge...) .
For use from a desktop computer, it is necessary to have a Java Virtual Machine installed in order to run the Signature Applet. The virtual machine can be downloaded from the JAVA website .
If you prefer, you can install the utility " Viafirma Desktop " which will not require the download of the JNLP every time you access or sign.
In all cases it is necessary for the user to have a digital certificate issued by a qualified lender. You will find information about the qualified certificates in Certificates accepted by the validator of the AOC Consortium.