# Certum Trusted Root CA root certificate (Certum)

> Certum Trusted Root CA is a root CA certificate operated by Certum (RSA 4096, valid until 2043-03-16, SHA-256 FE769657). 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/certum-trusted-root-ca/
Last updated: 2026-11-10

Certum Trusted Root CA is a root CA certificate operated by Certum (RSA 4096, valid until 2043-03-16, SHA-256 FE769657). 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 | Certum |
| Subject | CN=Certum Trusted Root CA,OU=Certum Certification Authority,O=Asseco Data Systems S.A.,C=PL |
| SHA-256 | FE7696573855773E37A95E7AD4D9CC96C30157C15D31765BA9B15704E1AE78FD |
| SPKI SHA-256 | 681DC482C296C8402C6EBB20E68309A3BC846523AE34B984A84EE697A3312DB7 |
| Valid from | 2018-03-16 |
| Expires | 2043-03-16 |
| Key | RSA 4096 |
| Signature algorithm | sha512WithRSAEncryption |
| Serial number | 1EBF5950B8C980374C06F7EB554FB5ED |
| SHA-1 (Windows thumbprint) | C88344C018AE9FCCF187B78F22D1C5D74584BAE5 |

## Root store status

| Root store | Status | Trusted for TLS | Distrust for TLS after | Details |
|---|---|---|---|---|
| Chrome | Included | Yes | - | - |
| Mozilla | Included | Yes | - | Trust bits: Websites, Email; EV policy OIDs: 2.23.140.1.1; First included in: NSS 3.66 / Firefox 90; Inclusion bug: #1598577 |
| Apple | Included | Yes | - | Trust bits: serverAuth, clientAuth, emailProtection |
| Microsoft | Included | Yes | - | Trusted EKUs: Server Authentication, Client Authentication, Code Signing, Secure Email, Time Stamping |

Mozilla treats it as an EV root for policy OID 2.23.140.1.1.

## Intermediate CAs issued by this root

The CCADB lists 40 intermediate CA certificates signed directly by Certum Trusted Root CA: 39 currently valid, 0 expired and 1 revoked (revoked includes those whose parent was revoked).

| Intermediate | Operated by | Expires | Status | SHA-256 |
|---|---|---|---|---|
| AutonTrust PRO DV TLS G2 R31 CA | Asseco Data Systems S.A. | 2031-06-06 | Valid | 31480F53BFF4B2A75DCE38E7961AFBBDB7E3760D32A727601785564869BEE7A7 |
| Certum TLS RSA Root CA | Asseco Data Systems S.A. | 2036-04-15 | Valid | 98D88F84159587EFC830BA17AC8E0C807B7A59D560DE49C8592912251C3EC127 |
| CNSSL OV TLS G2 R36 CA | Asseco Data Systems S.A. | 2036-01-30 | Valid | 27DE66F355250789599D18137C54A1919A59A7737F1634CE935DD3CA898C5101 |
| home pl DV TLS G2 R36 CA | Asseco Data Systems S.A. | 2036-01-02 | Valid | EC118EB8BD1B8ECCF0F8CAAEC1BDB9CD7AD495F756B94A58D09BEC62510EB679 |
| CNSSL DV TLS G2 R36 CA | Asseco Data Systems S.A. | 2036-01-02 | Valid | C69DB01A92010CC036EEBC5B31268F0BEBD9B66F49105F1AD96F8FA6530F31B0 |
| home pl OV TLS G2 R36 CA | Asseco Data Systems S.A. | 2036-01-02 | Valid | 53D56B6022FBFBC72CD9AC6706165D8AA1621FD98E047C4A8F62A58DAD2B2C72 |
| Certum Document Signing G2 R40 CA | Asseco Data Systems S.A. | 2040-06-03 | Valid | B8ECE24174FDA6E7A29FAD6FEE123D03BB32C5ABC6424DD036EAEC7FA1021427 |
| AnTrust OV SSL G2 R30 CA | Asseco Data Systems S.A. | 2030-06-06 | Valid | B0E7145A48B9FAE4A499071FE9C4FA59032DF72E75955B2B3EFB79599E4A53E0 |
| home pl DV TLS G2 R35 CA | Asseco Data Systems S.A. | 2035-05-16 | Valid | CA1A6E0BC3B1C2ED099D42D7030577578D13F63B4B9680A6BAA274DF17C9DE58 |
| home pl OV TLS G2 R35 CA | Asseco Data Systems S.A. | 2035-05-16 | Valid | 418B97140C71058A09E933B089D0D5683E3133CD5F72548F6C15A17579BA27DB |
| TrustAsia SMIME CA 2025 | Asseco Data Systems S.A. | 2035-01-03 | Valid | E802A9679975DAD283EC482666D82A7CE54E1086873510F5A4CC49BD913CECAC |
| TrustAsia OV TLS RSA CA C5 | Asseco Data Systems S.A. | 2035-01-03 | Valid | ABF95652710CE99ECFBCBDAFCDCA81F3865BA1F88161ADA61090E502A6B1667E |
| TrustAsia EV TLS RSA CA C5 | Asseco Data Systems S.A. | 2035-01-03 | Valid | A18CBF79E904E3BCC9D74D5ED062A46A90E2C7D89904114EC38B18650CD83E2C |
| iTrust DV TLS CA | Asseco Data Systems S.A. | 2035-01-03 | Valid | 7CF26EB49E3999795959A80A7305EB7048D179CB15DD2DE897702EBA1F42C082 |
| 宝塔 DV TLS CA | Asseco Data Systems S.A. | 2035-01-03 | Valid | 7AEA9978F8E2030B972B7941DB2C0B67E9FF391A212E608F5AF3EAA989B059CA |
| iTrust OV TLS CA | Asseco Data Systems S.A. | 2035-01-03 | Valid | 553602422FD9B73B95DB5D78B24DC83EA58D046D93D4A9D87493AA706CE62F3D |
| TrustAsia DV TLS RSA CA C5 | Asseco Data Systems S.A. | 2035-01-03 | Valid | 282C0E6401E5C33D1C89F2835FAE01B0F9585C51A71766FDCED3AA5B2222B796 |
| TLC OV TLS CA | Asseco Data Systems S.A. | 2034-12-05 | Valid | DA99474EB4D1DA945FD6C13CD383B908E6F9BEA2E5108EB158F62EED8513C035 |
| GeoSSL DV TLS CA | Asseco Data Systems S.A. | 2034-12-05 | Valid | B5C8E05AA6826A4E43ACC5CEBC652AD7A5D5FA158DC1C9211DD5C50184BD7A97 |
| TLC DV TLS CA | Asseco Data Systems S.A. | 2034-12-05 | Valid | AA985028EE5CF60287E86159B11DA578727E7C7433B2DA6F53C183D032A9294D |

## Cross-signed versions

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

| Signed by | CA owner | Expires | Status | SHA-256 |
|---|---|---|---|---|
| Certum Trusted Network CA | Asseco Data Systems S.A. | 2028-09-19 | Valid | FB13890C7AB14FF7B94B2714503E31123BFDD340FC4D979743166E0469B47A88 |

## What happens when it expires

Certum Trusted Root CA is valid until 2043-03-16, about 16.3 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 Certum Trusted Root CA 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 Certum Trusted Root CA expire?**

On 2043-03-16, about 16.3 years after the 2026-11-10 data snapshot.

**How many intermediate certificates has Certum Trusted Root CA issued?**

The CCADB lists 40: 39 valid, 0 expired and 1 revoked. The newest valid one is AutonTrust PRO DV TLS G2 R31 CA, valid until 2031-06-06.

**Is Certum Trusted Root CA cross-signed?**

Yes. The CCADB has 1 cross-certificate(s) with its subject and key, signed by Certum Trusted Network CA; 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).