The CESNET association mediates TCS Certificates in the framework of the Trusted Certificate Service project. Currently, HARICA is the issuer of these certificates. Most of the common internet browsers and e-mail clients trust in its root certificates.
Personal TCS Certificates are intended for e-mail security and network applications authentication.
Server TCS Certificates are intended for WWW and more internet services communicating via secure protocol and proves identity of the server to users.