Support levels

TrustPort Basic, free, for all customers

  • Updates via the internet
  • E-mail hot-line, Mon-Fri 8.00-16.00 CET
  • Helpdesk system

TrustPort VIP, prepaid, for business customers

  • Basic support included
  • Optional additional services


Before you decide to contact support, we recommend that you try to find the information needed in the Technical FAQ and Sales FAQ.

Sales support:

Technical support:

Other queries:

Tel.: +420 541 244 471
Fax: +420 541 235 038

Postal address:

TrustPort a. s.
Purkyňova 2845/101
612 00 Brno, Czech Republic

Electronic signature

Electronic signature is a transformation of the original message with the help of cryptographic methods, ensuring the integrity of the message and authentication of the signee. For some purposes an advanced electronic signature with prescribed types of certificates is also required, basically based on a “qualified certificate". Electronic signing of the document provides:

  • authenticity - you can verify the origin, i.e. the identity of the subject to whom the electronic signature belongs 
  • integrity - it can be shown that after the signing of the document there has been no change to it, the file is not intentionally or accidentally damaged

While the electronic signature refers to a natural person acting on their own behalf or on behalf of a corporate entity or some other authority, an electronic sign may also indicate a corporate entity or organizational components of the state.