# Telekom Security TLS ECC Root 2020 root certificate (Deutsche Telekom Security)

> Telekom Security TLS ECC Root 2020 is a root CA certificate operated by Deutsche Telekom Security (ECDSA P-384, valid until 2045-08-25, SHA-256 578AF4DE). As of the latest CCADB data it is trusted for TLS server authentication by 3 of 4 major root stores: Chrome, Mozilla, Microsoft.

Source: https://ssl.sh/roots/telekom-security-tls-ecc-root-2020/
Last updated: 2026-11-10

Telekom Security TLS ECC Root 2020 is a root CA certificate operated by Deutsche Telekom Security (ECDSA P-384, valid until 2045-08-25, SHA-256 578AF4DE). As of the latest CCADB data it is trusted for TLS server authentication by 3 of 4 major root stores: Chrome, Mozilla, Microsoft.

| Field | Value |
|---|---|
| CA owner | Deutsche Telekom Security |
| Subject | CN=Telekom Security TLS ECC Root 2020,O=Deutsche Telekom Security GmbH,C=DE |
| SHA-256 | 578AF4DED0853F4E5998DB4AEAF9CBEA8D945F60B620A38D1A3C13B2BC7BA8E1 |
| SPKI SHA-256 | EAB0DE5A46419010B01B2D55553FC111AA82B43D9395EDFEAEAA8C76E6AD1995 |
| Valid from | 2020-08-25 |
| Expires | 2045-08-25 |
| Key | ECDSA P-384 |
| Signature algorithm | ecdsa-with-SHA384 |
| Serial number | 363A968CC95CB258CDD0015DC5E55700 |
| SHA-1 (Windows thumbprint) | C0F896C5A93B01062107DA184248BCE99D88D5EC |

## Root store status

| Root store | Status | Trusted for TLS | Distrust for TLS after | Details |
|---|---|---|---|---|
| Chrome | Included | Yes | 2027-08-30 | - |
| Mozilla | Included | Yes | - | Trust bits: Websites; EV policy OIDs: 2.23.140.1.1; First included in: NSS 3.98 / Firefox 124; Inclusion bug: #1820592 |
| Apple | Not included | No | - | - |
| Microsoft | Included | Yes | - | Trusted EKUs: Server Authentication, Client Authentication |

Chrome stops trusting TLS certificates under this root whose SCTs are dated after 2027-08-30 (sct_not_after). Mozilla treats it as an EV root for policy OID 2.23.140.1.1.

## Intermediate CAs issued by this root

The CCADB lists 7 intermediate CA certificates signed directly by Telekom Security TLS ECC Root 2020: 6 currently valid, 0 expired and 1 revoked (revoked includes those whose parent was revoked).

| Intermediate | Operated by | Expires | Status | SHA-256 |
|---|---|---|---|---|
| Telekom Security OV ECC CA 26 | Deutsche Telekom Security GmbH | 2029-03-18 | Valid | 3E7843F9F7B5ADB7D8572E3E9ADB90361E3CD0E766BCC7403830F5BEA0DF2643 |
| Telekom Security OV ECC qualified CA 25 | Deutsche Telekom Security GmbH | 2035-10-22 | Valid | 378875A179C6A20ECD2E202F21BB2CCEF5F057FCD745ED4495CFF8286B3DD1EB |
| Telekom Security EV ECC CA 24 | Deutsche Telekom Security GmbH | 2034-11-25 | Valid | 708E9E96AD5CE5C9B1F79137423FA98A81FFB087879B7BBE3DA71425742E2EEC |
| Telekom Security DV ECC CA 24 | Deutsche Telekom Security GmbH | 2034-11-25 | Valid | 688C275E88EBB382EED0AC7D8FAD62A8D0C7D0731D63A9CA31A67B6B1525E228 |
| Telekom Security OV ECC CA 24 | Deutsche Telekom Security GmbH | 2034-11-25 | Valid | 679C0CD9D0C4E893E0073250322304F0E7741067E0C92DB42B90FFB94144BBFB |
| Telekom Security EV ECC CA 21 | Deutsche Telekom Security GmbH | 2031-04-21 | Valid | D7A8A9947C31806C1B4625F82FCBCCA7CC2090E58DB215B8E4D88BA9C60D3166 |
| Telekom Security OV ECC qCA 25 | Deutsche Telekom Security GmbH | 2035-07-07 | Revoked | 771E7D6C2D77B7B90E1B4FF7DBFEA3E1AD7D249D0D729ED045567B5C16409276 |

## Cross-signed versions

1 certificate(s) in the CCADB have the same subject and public key as Telekom Security TLS ECC Root 2020 but a different issuer. A server can send one of them so that clients which trust the issuing root, but not Telekom Security TLS ECC Root 2020, can still build a chain.

| Signed by | CA owner | Expires | Status | SHA-256 |
|---|---|---|---|---|
| T-TeleSec GlobalRoot Class 3 | Deutsche Telekom Security GmbH | 2033-09-30 | Valid | 4DCE5A017BB3D81ACF823E815AABCB83752AD3E2883B359DF42935DFBD497075 |

## What happens when it expires

Telekom Security TLS ECC Root 2020 is valid until 2045-08-25, about 18.8 years after this data snapshot (2026-11-10). From that day, browsers and operating systems that check trust-anchor expiry stop accepting chains that end at this root, so any certificate that can only chain to it fails validation. Android is a known exception: it does not enforce the expiry date of trust anchors. Root programs can stop trusting it before it expires: Chrome 2027-08-30.

## FAQ

**Is Telekom Security TLS ECC Root 2020 trusted by Chrome, Firefox, Safari and Windows?**

As of 2026-11-10, Chrome, Mozilla, Microsoft trust it for TLS server authentication; Apple do not. Distrust-after dates already set: Chrome 2027-08-30.

**When does Telekom Security TLS ECC Root 2020 expire?**

On 2045-08-25, about 18.8 years after the 2026-11-10 data snapshot.

**How many intermediate certificates has Telekom Security TLS ECC Root 2020 issued?**

The CCADB lists 7: 6 valid, 0 expired and 1 revoked. The newest valid one is Telekom Security OV ECC CA 26, valid until 2029-03-18.

**Is Telekom Security TLS ECC Root 2020 cross-signed?**

Yes. The CCADB has 1 cross-certificate(s) with its subject and key, signed by T-TeleSec GlobalRoot Class 3; 1 of them are still valid.

Sources: CCADB TLS Server Authentication report, All Included Root Certificate Trust Bit Settings, All Certificate Information (V5), the per-store TLS reports and Mozilla's Included CA Certificate Report (ccadb.org/resources).