# Telekom Security TLS RSA Root 2023 root certificate (Deutsche Telekom Security)

> Telekom Security TLS RSA Root 2023 is a root CA certificate operated by Deutsche Telekom Security (RSA 4096, valid until 2048-03-27, SHA-256 EFC65CAD). 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-rsa-root-2023/
Last updated: 2026-11-10

Telekom Security TLS RSA Root 2023 is a root CA certificate operated by Deutsche Telekom Security (RSA 4096, valid until 2048-03-27, SHA-256 EFC65CAD). 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 RSA Root 2023,O=Deutsche Telekom Security GmbH,C=DE |
| SHA-256 | EFC65CADBB59ADB6EFE84DA22311B35624B71B3B1EA0DA8B6655174EC8978646 |
| SPKI SHA-256 | 0E05E9BB23869EB689DC56839DCEC475A3AE75FA6B50BC5A4978360CBE673323 |
| Valid from | 2023-03-28 |
| Expires | 2048-03-27 |
| Key | RSA 4096 |
| Signature algorithm | sha384WithRSAEncryption |
| Serial number | 219C542DE8F6EC7177FA4EE8C3705797 |
| SHA-1 (Windows thumbprint) | 54D3ACB3BD5756F6859DCEE5C321E2D4AD83D093 |

## 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 8 intermediate CA certificates signed directly by Telekom Security TLS RSA Root 2023: 7 currently valid, 0 expired and 1 revoked (revoked includes those whose parent was revoked).

| Intermediate | Operated by | Expires | Status | SHA-256 |
|---|---|---|---|---|
| Telekom Security OV RSA CA 26A | Deutsche Telekom Security GmbH | 2029-03-18 | Valid | C76E23DFA0014B885A6DED8E6D64C295AF4991DC7872C1AF8B0FEF527E263929 |
| Telekom Security OV RSA CA 26B | Deutsche Telekom Security GmbH | 2029-03-18 | Valid | 2082B641B4AD7F20A8CEE7F1FB85571EA461222FE933DFF2FB246ED5AC7EADA2 |
| Telekom Security OV RSA qualified CA 25 | Deutsche Telekom Security GmbH | 2035-10-22 | Valid | AF33778A2215533739B9FB3A2E38D9B66D44785B6C0803D2C1E2CEB54503DD61 |
| Telekom Security EV RSA CA 25 | Deutsche Telekom Security GmbH | 2035-02-26 | Valid | C9A5C1A8848C3FE895EA32DBAA4BEDEBCDABF6833469E6EA9CB90E156EF1F09D |
| Telekom Security DV RSA CA 24 | Deutsche Telekom Security GmbH | 2034-11-25 | Valid | 46CFB832EF24FE305A50ADFCA11C9EF12F06210C550C0AE83505F025907915BE |
| Telekom Security OV RSA CA 24 | Deutsche Telekom Security GmbH | 2034-11-25 | Valid | 2D815F28B2493BC25DEEA56148EC47879DDE8348B82096FCD1112FA4AB4902D3 |
| Telekom Security EV RSA CA 23 | Deutsche Telekom Security GmbH | 2033-03-27 | Valid | 9A6FC4AB4DB1EA6F6663507EDC1D008F091AE88FAB6F3AE56A84A4090529EF58 |
| Telekom Security OV RSA qCA 25 | Deutsche Telekom Security GmbH | 2035-07-07 | Revoked | 46E776EA7C6C0F91F1CDE31755F864C45A61812F1C378ED5594E13BB4DE633C3 |

## Cross-signed versions

1 certificate(s) in the CCADB have the same subject and public key as Telekom Security TLS RSA Root 2023 but a different issuer. A server can send one of them so that clients which trust the issuing root, but not Telekom Security TLS RSA Root 2023, 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 | 6306C491F9D1CECEDEF46420E028601922C0106DD0B48A61A7454F9ED38CD649 |

## What happens when it expires

Telekom Security TLS RSA Root 2023 is valid until 2048-03-27, about 21.4 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 RSA Root 2023 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 RSA Root 2023 expire?**

On 2048-03-27, about 21.4 years after the 2026-11-10 data snapshot.

**How many intermediate certificates has Telekom Security TLS RSA Root 2023 issued?**

The CCADB lists 8: 7 valid, 0 expired and 1 revoked. The newest valid one is Telekom Security OV RSA CA 26A, valid until 2029-03-18.

**Is Telekom Security TLS RSA Root 2023 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).