In PHP i must sign a document with the Timestamp Protocol via HTTP (RFC 3161) using ARUBA as CA.
The Aruba's documentation says:
To time-stamp a datum you must call the url https://servizi.arubapec.it/tsa/ngrequest.php with a POST method. In the POST body you must insert the structure TimeStampReq (RFC 3161) encode in DER.
How can i make the request using the php?
you can use curl function in php.
Ok, This is part of my edited/modified tcpdf.php.