---
type: source
title: "URZ: E-Mail Certificates"
tags: [pki, certificates, smime, harica]
related: [email-zertifikate, nutzerzertifikate, harica]
created: 2026-06-30
updated: 2026-06-30
sources: ["output/rz_uni_greifswald_de_dienste_allgemein_dfn_pki_zertifikate_nutzerzertifikat_e_ma.md"]
---
# URZ: E-Mail Certificates

This source provides a detailed step-by-step guide for users at the Universität Greifswald to obtain e-mail certificates for digital signatures (S/MIME) via the HARICA provider.

## Key Content
- **Provisioning Workflow**: Detailed instructions on navigating the HARICA portal, selecting the "Email-only" type, confirming the email address, and enrolling the certificate.
- **Technical Specifications**: Mandates the use of the **RSA** algorithm with a key size of **4096**.
- **File Format**: The resulting certificate is provided as a `.p12` file.
- **Security Warning**: The URZ explicitly warns that the private key is generated and stored on HARICA's servers during this process, which is not the ideal security state.
- **Support**: Directs users to the URZ via the Groupware ticket system or the hotline for Campus-IT issues.