Previously we answered the most common questions about the OCSP. Another element involved in the creation and verification of signatures is timestamping. This blog covers how timestamping works, what a Timestamp Authority is, and why timestamping is beneficial to the longevity and legality of digital signatures.
The ADSS Server Signing Service can create PDF digital signatures or all common ETSI PAdES formats (PAdES Part 2,3,4) and it can also create and apply visible signature appearances where requested. While other digital signature approaches have quite limited signature appearance functionality, the ADSS Server Signing Service includes a sophisticated and yet easy to use signature appearance designer. This enables administrators to create visible signatures that are optimised for their business purpose.
Within Europe a new digital signature format “PAdES” is gaining traction. PAdES stands for “PDF Advanced Electronic Signatures” and is a set of standards published by ETSI (TS 102 778 parts 1 to 5) to support European requirements for electronic signatures. The purpose is specifically for creation of long-term signatures that are verifiable for years or even decades.