# TUBITAK Kamu SM SSL Kok Sertifikasi - Surum 1 root certificate (Kamu SM (Turkey))

> TUBITAK Kamu SM SSL Kok Sertifikasi - Surum 1 is a root CA certificate operated by Kamu SM (Turkey) (RSA 2048, valid until 2043-10-25, SHA-256 46EDC368). As of the latest CCADB data it is trusted for TLS server authentication by 4 of 4 major root stores: Chrome, Mozilla, Apple, Microsoft.

Source: https://ssl.sh/roots/kamu-sm-tubitak-kamu-sm-ssl-kok-sertifikasi-surum-1/
Last updated: 2026-11-10

TUBITAK Kamu SM SSL Kok Sertifikasi - Surum 1 is a root CA certificate operated by Kamu SM (Turkey) (RSA 2048, valid until 2043-10-25, SHA-256 46EDC368). As of the latest CCADB data it is trusted for TLS server authentication by 4 of 4 major root stores: Chrome, Mozilla, Apple, Microsoft.

| Field | Value |
|---|---|
| CA owner | Kamu SM (Turkey) |
| Subject | CN=TUBITAK Kamu SM SSL Kok Sertifikasi - Surum 1,OU=Kamu Sertifikasyon Merkezi - Kamu SM,O=Turkiye Bilimsel ve Teknolojik Arastirma Kurumu - TUBITAK,L=Gebze - Kocaeli,C=TR |
| SHA-256 | 46EDC3689046D53A453FB3104AB80DCAEC658B2660EA1629DD7E867990648716 |
| SPKI SHA-256 | 55E00BE277CEB0545299F24FD9F877E2ACF32852DB43FFCD29BCA74B39B4C9FA |
| Valid from | 2013-11-25 |
| Expires | 2043-10-25 |
| Key | RSA 2048 |
| Signature algorithm | sha256WithRSAEncryption |
| Serial number | 1 |
| SHA-1 (Windows thumbprint) | 3143649BECCE27ECED3A3F0B8F0DE4E891DDEECA |

## Root store status

| Root store | Status | Trusted for TLS | Distrust for TLS after | Details |
|---|---|---|---|---|
| Chrome | Included | Yes | - | - |
| Mozilla | Included | Yes | - | Trust bits: Websites; EV policy OIDs: not EV-enabled; Applied constraints: *.tr; First included in: NSS 3.30.2 / Firefox 54; Inclusion bug: #1262809 |
| Apple | Included | Yes | - | Trust bits: serverAuth, clientAuth; Allowed policies: Server Authentication, Client Authentication, Code Signing, Timestamp Signing |
| Microsoft | Included | Yes | - | Trusted EKUs: Server Authentication, Client Authentication |

The CCADB lists no EV policy OID for TUBITAK Kamu SM SSL Kok Sertifikasi - Surum 1.

## Intermediate CAs issued by this root

The CCADB lists 3 intermediate CA certificates signed directly by TUBITAK Kamu SM SSL Kok Sertifikasi - Surum 1: 2 currently valid, 1 expired and 0 revoked (revoked includes those whose parent was revoked).

| Intermediate | Operated by | Expires | Status | SHA-256 |
|---|---|---|---|---|
| TUBITAK Kamu SM SSL Kok Sertifikasi - Surum 2 | Government of Turkey, Kamu Sertifikasyon Merkezi (Kamu SM) | 2040-06-12 | Valid | 4E5E8C3685C115F01B363253445FDD231EAA598441D46AFA696ACDB88D49F35C |
| TUBITAK Kamu SM SSL Sertifika Hizmet Saglayicisi - Surum 2 | Government of Turkey, Kamu Sertifikasyon Merkezi (Kamu SM) | 2027-04-25 | Valid | 7F57AE9CD2D574A10375E5DDD5E2216CAF8CF50B759CC62224A1840CB83B482C |
| TUBITAK Kamu SM SSL Sertifika Hizmet Saglayicisi - Surum 1 | Government of Turkey, Kamu Sertifikasyon Merkezi (Kamu SM) | 2025-05-11 | Expired | BF32DA954571659AAF715C13EE703E3643DFCBAEEE2D82110CA68EB57CB67CE0 |

## Cross-signed versions

No certificate in the CCADB has the same subject and public key as TUBITAK Kamu SM SSL Kok Sertifikasi - Surum 1 with a different issuer, so a client has to carry TUBITAK Kamu SM SSL Kok Sertifikasi - Surum 1 itself in its root store to trust it.


## What happens when it expires

TUBITAK Kamu SM SSL Kok Sertifikasi - Surum 1 is valid until 2043-10-25, about 17.0 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.

## FAQ

**Is TUBITAK Kamu SM SSL Kok Sertifikasi - Surum 1 trusted by Chrome, Firefox, Safari and Windows?**

Yes. As of 2026-11-10, Chrome, Mozilla (Firefox), Apple (Safari) and Microsoft (Windows) all trust it for TLS server authentication.

**When does TUBITAK Kamu SM SSL Kok Sertifikasi - Surum 1 expire?**

On 2043-10-25, about 17.0 years after the 2026-11-10 data snapshot.

**How many intermediate certificates has TUBITAK Kamu SM SSL Kok Sertifikasi - Surum 1 issued?**

The CCADB lists 3: 2 valid, 1 expired and 0 revoked. The newest valid one is TUBITAK Kamu SM SSL Kok Sertifikasi - Surum 2, valid until 2040-06-12.

**Is TUBITAK Kamu SM SSL Kok Sertifikasi - Surum 1 cross-signed?**

No. The CCADB has no certificate with the same subject and public key signed by another CA.

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).