It has become increasingly evident that to open up economies whilst ensuring the Covid-19 infection rate remains under control requires a mechanism whereby a person can present a document that proves they have received a vaccine.
Liaquat Khan

Recent Posts
Implementing the World Health Organisation (WHO) Smart Vaccination Certificates (SVCs) using Ascertia PKI
Ascertia leading the way to an eIDAS certified remote qualified signatures creation device (QSCD)!
We want to let you into a little secret. Since Sep 2017 Ascertia has been actively pursuing a Common Criteria EAL4+ certification of its ADSS Server “Signature Activation Module (SAM)” Appliance.
Some interesting statistics from the 2017 global PKI trends study
Last year’s IoT Solutions World Congress was an opportunity for the industry to focus on the increasing influence of the Internet of Things in PKI planning. We attended the event with our technology partner Thales e-Security, which has just published a report with the Ponemon Institute looking at PKI trends across eleven countries.
OCSP Responder - the must have features!
This article discusses the features that should be on a highly desirable feature list when looking for an OCSP Responder product. Although the main focus of this topic is technical there are of course also commercial aspects that need consideration, these are summarised briefly at the end. The technical features explained here are all available and implemented in Ascertia ADSS OCSP Server, which is downloadable on trial basis.
Long-term signatures - the essential features
It is clear that digital signatures are a very valuable security technique that enables data integrity (proving that the information has not changed since signing) and user authentication (proving who signed-off or approved the information). Digital signatures are now widely used in various industries and applications from signing of machine-readable travel documents to payment transactions to e-invoicing.
Timestamp authority server - the must have features!
This article describes why RFC3161 compliant Time Stamp Authority (TSA) servers are needed and what to look for when choosing a Timestamp Authority (TSA) server. ETSI TS 101 861 and TS 102 023 also places important requirements for TSA services providers and these are also considered in this hot topic.
Certificate transparency – The quick detection of fraudulent digital certificates
SSL Trust Issues
India's National Informatics Centre (NIC) has now joined the infamous Dutch CA DigiNotar in issuing fake and unauthorized digital certificates, yet again damaging the faith we place in Certification Authorities to provide high trust identity assurance.
Importance of certificate whitelist checking
Using PKI-based digital certificates has become a widely accepted means of electronic identity authentication for all kinds of purposes, from logical/physical access control to document signing, server authentication for e-commerce sites and software code authentication.
PDF signatures - using them to advantage
PDF documents have been common use within business for many years. Protecting PDFs against change is fast becoming a hot topic. Digitally signing PDFs with a certifying signature protects the content and also shows who signed or approved the document. This article explains how you can easily digitally sign PDFs, it covers what is needed to electronically sign PDF documents and the different types of PDF signatures.
Online document signing - the must have features
Getting a document approved and signed-off is a crucial part of any business, be it an order, sales contract, claim forms, internal HR documents or any other type of document that needs to be clearly agreed and approved preferably with a clear audit trail.