PostSignum certification authority

The PostSignum certification authority offers a full range of services for secure and comfortable online communication. PostSignum services are available at any post office with a Czech POINT outlet. We are the largest certification authority in the Czech Republic issuing over 10,000 certificates and more than 14 million time stamps per month.

We were the first to offer our customers a simple online tool for administering their certificates and stamps Customer Portal.

Qualified certificates

You will use a qualified certificate or electronic signature not only for communicating with authorities.

More information

Commercial certificates

Commercial certificates will secure your web server or enable you to encode your emails.

More information

Internal certificates

Internal certificates are used in the Crypta programme which is used for secured communication.

More information

Time stamps

A time stamp extends the validity of your documents by up to 5 years.

More information

Safe Key

Boost the security of your electronic certificates and have them always at hand.

More information

Other products

Get useful programmes for working with certificates and time stamps.

More information