---
type: entity
title: GÉANT Trusted Certificate Service (TCS)
tags: [pki, security, infrastructure]
related: [dfn-pki-zertifikate, harica]
created: 2026-06-30
updated: 2026-06-30
sources: ["output/rz_uni_greifswald_de_dienste_allgemein_dfn_pki_zertifikate.md"]
---

# GÉANT Trusted Certificate Service (TCS)

The **GÉANT Trusted Certificate Service (TCS)** is the overarching framework through which Public Key Infrastructure (PKI) services are delivered to the University of Greifswald and other member institutions of the DFN-Verein.

It acts as the service layer that facilitates the provision of certificates from specific authorities, such as [[harica]].
