From September 2026, the certificate in use will be issued by the ETHZ Issuing CA 2020. This means a validity period of 1 year can continue to be used. For instructions on how to trust the ETH Root CA, see /how-to.
| State | Running |
| Subject | C=CH, L=Zürich, O=ETH Zürich, CN=radius-service.ethz.ch |
| Active on Radius servers | 2026-09-10 to 2027-09-10 |
| Certificate validity | 2026-08-31 to 2028-08-21 |
| S/N | 68:00:01:81:58:ef:90:d6:ba:4d:14:b2:16:00:01:00:01:81:58 |
| Issuer | C=CH, O=ETH Zurich, CN=ETHZ Issuing CA 2020 |
| Fingerprint (SHA-256) | CC:82:79:46:C2:6B:D0:E2:76:94:5F:70:0E:24:9D:8C:57:81:C7:CF:FD:9F:9F:25:29:9D:96:7F:E7:A3:20:63 |
| Fingerprint (SHA-1) | 3B:58:5C:F5:12:FE:27:EC:6A:9F:EF:4D:13:49:AD:95:C1:AF:C7:0F |
| Download | c3de044f-05c9-469f-a932-32f32f205f04.crt |
| State | Deprecated |
| Subject | C=CH, L=Zürich, O=ETH Zürich, CN=radius-service.ethz.ch |
| Active on Radius servers | 2025-09-10 to 2026-09-03 |
| Certificate validity | 2025-09-01 to 2026-10-02 |
| S/N | 09:4f:50:c4:76:9d:2b:f4:bb:67:84:f0:d9:30:39:7a |
| Issuer | C=US, O=DigiCert Inc, CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1 |
| Fingerprint (SHA-256) | 93:45:05:58:2B:07:F4:64:1B:66:A6:C2:E2:41:4B:FC:EB:DC:85:E1:F2:1B:0B:EB:D5:87:78:EC:65:F8:30:56 |
| Fingerprint (SHA-1) | E0:32:EE:5E:8E:88:5D:7C:BC:B1:1D:7A:6D:CE:A5:9A:D1:5D:2C:32 |
| Download | 9346fde4-9bde-44db-a770-d4a7151913f1.crt |
| State | Deprecated |
| Subject | C=CH, L=Zürich, O=ETH Zürich, CN=radius-service.ethz.ch |
| Active on Radius servers | 2024-09-11 to 2025-09-08 |
| Certificate validity | 2024-08-30 to 2025-09-30 |
| S/N | 0c:ae:08:6f:8f:92:06:24:1e:fb:e3:2f:64:e7:9a:77 |
| Issuer | C=US, O=DigiCert Inc, CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1 |
| Fingerprint (SHA-256) | 86:0E:EA:22:B0:BE:E9:5E:FB:A3:F9:1C:FE:14:E7:20:67:CE:D5:BE:FC:A8:AF:12:C0:C5:A4:1E:7E:A6:FA:AC |
| Fingerprint (SHA-1) | E8:E3:53:F6:E1:F2:FB:28:F9:54:CA:CD:A0:B9:FD:CD:74:22:79:D1 |
| Download | e4c301de-66b1-11ef-b257-3ccd365ffb70.crt |
| State | Deprecated |
| Subject | C=CH, L=Zürich, O=ETH Zürich, CN=radius-service.ethz.ch |
| Active on Radius servers | 2023-09-06 to 2024-09-18 |
| Certificate validity | 2023-08-23 to 2024-09-22 |
| S/N | 05:8B:37:93:C8:E6:61:12:0C:46:9E:86:48:98:A2:15 |
| Issuer | C=US, O=DigiCert Inc, CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1 |
| Fingerprint (SHA-256) | 0E:7F:F4:E4:97:AC:45:16:8A:3D:ED:79:5A:DA:A3:17:8B:07:2C:3B:BB:30:08:DF:D2:8C:2E:D2:93:DC:B6:BC |
| Fingerprint (SHA-1) | 2D:A6:DE:50:AC:39:57:BA:99:8C:E7:8F:5A:74:6D:4D:40:0B:D9:8E |
| Download | 63c3bf2f-dab2-4822-9721-814db276963c.crt |
| State | Deprecated |
| Subject | CN=radius-service.ethz.ch |
| Active on Radius servers | 2022-09-16 to 2023-09-06 |
| Certificate validity | 2022-09-02 to 2023-10-02 |
| S/N | 2F:82:79:45:54:1C:AA:D6:4B:E4:C6:CC:7E:40:C2:F2 |
| Issuer | C=GB, ST=Greater Manchester, L=Salford, O=Sectigo Limited, CN=Sectigo RSA Domain Validation Secure Server CA |
| Fingerprint (SHA-256) | 03:C9:E8:5E:54:10:F8:A6:9B:BF:F2:E4:CB:2C:AE:E5:DA:F7:87:F2:44:94:A9:6D:AB:EF:8C:4A:49:D5:33:FC |
| Fingerprint (SHA-1) | 41:DA:29:60:A2:E3:EA:EB:F3:01:48:0F:F1:D2:C6:8A:50:6F:10:7D |
| Download | 4601dcdc-65b5-4d13-b079-d01e47021647.crt |