Download area
Documents
| Document | Validity period | Download |
|---|---|---|
| valid from 02-23-2024 | Download | |
| valid from 04-08-2024 | Download | |
| valid from 02-23-2024 | Download | |
| valid from 02-01-2023 | Download |
CA-Zertifikate
A Certification Authority (CA) is an organisation responsible for the generation, issuance, revocation and management of certificates. The term refers to both root certification authorities (Root-CA) and subordinate certification authorities (Sub-CA).
The certificates of the root certification authorities (Root-CA) are pre-installed as trust anchors in the common applications or certificate stores of the operating systems. In special cases, this certificate can be installed later.
For validation of the certificate chain, the certificate of the intermediate certification authority (Sub-CA) must be installed in the common applications or certificate stores of the operating systems.
Public CA certificates
| Root-CA | Intermediate certification authority (Sub-CA) | Valid from | Valid to |
|---|---|---|---|
 T-TeleSec GlobalRoot Class 2 |
10-01-2008 | 10-01-2033 | |
| Deutsche Telekom AG secure email CA E05 |
09-01-2023 | 09-01-2028 | |
| Deutsche Telekom AG secure email CA E03 |
07-09-2020 | 07-09-2030 | |
| Deutsche Telekom AG secure email CA E02 |
02-25-2020 | 02-25-2030 | |
| Deutsche Telekom AG secure email CA |
04-09-2019 | 04-09-2029 | |
| Deutsche Telekom AG secure email CA |
01-18-2018 | 01-18-2028 | |
| Deutsche Telekom AG Issuing CA 01 |
07-13-2016 | 07-13-2026 | |
| Deutsche Telekom Root CA 2 |
07-09-1999 | 07-09-2019 | |
| Deutsche Telekom AG Issuing CA 01 |
04-14-2011 | 04-15-2019 |
Internal CA certificates
| Root-CA | Intermediate certification authority (Sub-CA) | Valid from | Valid to |
|---|---|---|---|
| Deutsche Telekom Internal Root CA 2 |
08-03-2017 | 09-03-2037 | |
| Deutsche Telekom AG infrastructure CA |
12-01-2020 | 12-02-2030 | |
| Deutsche Telekom AG internal secure email CA |
02-25-2020 | 02-25-2030 | |
| Deutsche Telekom AG mobile device CA |
04-09-2019 | 04-09-2029 | |
| Deutsche Telekom AG virtual logon CA |
03-19-2019 | 03-19-2029 | |
| Deutsche Telekom AG authentication CA |
06-08-2018 | 06-08-2028 | |
| Deutsche Telekom AG infrastructure CA |
06-08-2018 | 06-08-2028 | |
| Deutsche Telekom AG mobile device CA |
01-18-2018 | 01-18-2028 | |
| Deutsche Telekom Internal Root CA 1 |
11-15-2007 | 11-15-2027 | |
| Deutsche Telekom AG Issuing CA 02 |
11-29-2016 | 11-29-2026 | |
| Deutsche Telekom AG Issuing CA 02 |
07-13-2016 | 07-13-2026 | |
| Deutsche Telekom AG Issuing CA 03 |
07-13-2016 | 07-13-2026 | |
| Deutsche Telekom AG Issuing CA 03 |
01-14-2010 | 01-14-2026 |