---
type: source
title: "URZ: DFN-PKI Zertifikate"
tags: [certificates, pki, security, harica]
related: [dfn-pki-zertifikate, harica, geant-tcs]
created: 2026-06-30
updated: 2026-06-30
sources: ["output/rz_uni_greifswald_de_dienste_allgemein_dfn_pki_zertifikate.md"]
---

# URZ: DFN-PKI Zertifikate

This source documents the current state of Public Key Infrastructure (PKI) services provided by the Universitätsrechenzentrum (URZ) at the University of Greifswald.

## Key Information
- **Provider Transition**: As of January 10, 2025, the previous certificate provider terminated their contract with GÉANT. The university has transitioned to **HARICA** as an alternative provider for the next two years.
- **Documentation Status**: The documentation for this service area is currently in a "reconstruction phase" (Umbauphase) due to the provider change.
- **Available Services**:
    - Official server and user certificates via **HARICA** (through GÉANT TCS).
    - Free certification via **Let's Encrypt** for all university domains.

## HARICA Authentication Process
To obtain certificates from HARICA, users must authenticate via **Shibboleth** using the following steps:
1. Access the HARICA login page.
2. Select **Academic Login**.
3. Search for and select **University of Greifswald**.
4. Authenticate via the university's Shibboleth login page.
5. Consent to the transfer of personal data (First Name, Last Name, and primary Email Address) to HARICA.

## Support
Technical issues are handled by the [[universitatsrechenzentrum-urz]] via:
- The [[groupware]] ticket system.
- The URZ hotline (extension 1420).