Digital Signature With a Timestamp
This demo digital signs the document and adds an additional time stamp signature from an external time stamp server into the signature. The communication between the component and the time stamp server conforms to RFC 3161.
We use certificates from GlobalSign for demonstration. If you want to validate the signature in another viewer application, make sure that the root certificate is added as a trusted identity. Furthermore you need to have the root certificate of the timestamp authority (Freetsa CA Certificate or Test e-Szigno Root CA 2017) added.