Contact: mailto:it-sicherheit@uni-koeln.de Encryption: https://uni-koeln.de/rrzk/it-sicherheit-2022.pem # Note: The file linked to above contains two base64 encoded DER encoded certificates to allow encrypted S/MIME communications via e-mail. Contact: https://rrzk.uni-koeln.de/informationssicherheit/it-sicherheit/stabsstelle-security-operations Expires: 2025-02-14T22:00:00.000Z Preferred-Languages: de, en