# Certum EC-384 CA root certificate (Certum)

> Certum EC-384 CA is a root CA certificate operated by Certum (ECDSA P-384, valid until 2043-03-26, SHA-256 6B328085). 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-ec-384-ca/
Last updated: 2026-11-10

Certum EC-384 CA is a root CA certificate operated by Certum (ECDSA P-384, valid until 2043-03-26, SHA-256 6B328085). 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 EC-384 CA,OU=Certum Certification Authority,O=Asseco Data Systems S.A.,C=PL |
| SHA-256 | 6B328085625318AA50D173C98D8BDA09D57E27413D114CF787A0F5D06C030CF6 |
| SPKI SHA-256 | DE7B6932E9C44582CE0DE07ABDAB7EEA90C75D6D2A07331DF57BD5CB88553D13 |
| Valid from | 2018-03-26 |
| Expires | 2043-03-26 |
| Key | ECDSA P-384 |
| Signature algorithm | ecdsa-with-SHA384 |
| Serial number | 788F275C81125220A504D02DDDBA73F4 |
| SHA-1 (Windows thumbprint) | F33E783CACDFF4A2CCAC67556956D7E5163CE1ED |

## 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 14 intermediate CA certificates signed directly by Certum EC-384 CA: 13 currently valid, 0 expired and 1 revoked (revoked includes those whose parent was revoked).

| Intermediate | Operated by | Expires | Status | SHA-256 |
|---|---|---|---|---|
| netartSSL DV TLS G2 E31 CA | Asseco Data Systems S.A. | 2031-06-06 | Valid | B86D04DF2AF712C87B62882E521A13DB26A4C5456017E58F445E529958A79F41 |
| Certum TLS ECC Root CA | Asseco Data Systems S.A. | 2036-04-15 | Valid | 83C18AF3F7BCE7DC7C5A3A51D001A5AB74C359F7476D5BEED8A30730FC9A6C26 |
| Trustgate SMIME G2 E31 CA | Asseco Data Systems S.A. | 2031-05-16 | Valid | 749D9CDF01084CB5DA49DDEF11E193ECFA6530E67419302C4D945BAF74342145 |
| WhiteSSL DV TLS G2 E36 CA | Asseco Data Systems S.A. | 2036-01-02 | Valid | 436E0B7A910D045E7D87A00A320D66D7A4935D3C25EE906CA69CED227AB2CBF5 |
| Certum Client Authentication G2 E40 CA | Asseco Data Systems S.A. | 2040-06-03 | Valid | 2B94BD83867AD92CDC7432D5B9D8AA5635A2974542510C36ACFAF9D91A2B7EBE |
| TrustAsia OV TLS ECC CA C5 | Asseco Data Systems S.A. | 2035-01-03 | Valid | C66497D671E53EE16A3D90A65C24A06FD7C0465E4DCFD4F8EF86B6CC75FC7760 |
| TrustAsia EV TLS ECC CA C5 | Asseco Data Systems S.A. | 2035-01-03 | Valid | 3ACC4CAD7718C2E5BF549BFE1DAB9234B2EB71C00E72A554759745A611D81774 |
| nazwaSSL DV TLS G2 E29 CA | Asseco Data Systems S.A. | 2029-08-14 | Valid | 7F02E351F89B119741B01D1371CA1B9C14ED8B34D640BA44EFC3ABB9FEBBE7C8 |
| Certum OV TLS G2 E39 CA | Asseco Data Systems S.A. | 2039-06-05 | Valid | A248F04C5529A4CD1DAECA8177B7546530625E3018BCC5A53F647F9F587497B1 |
| Certum DV TLS G2 E39 CA | Asseco Data Systems S.A. | 2039-06-05 | Valid | 5202D5F0505C69B2F7B6DA2D15D2DD61515C63958A90C05A23D9A8CEAFDEDBFA |
| Certum EV TLS G2 E39 CA | Asseco Data Systems S.A. | 2039-06-05 | Valid | 3B28121D8985E2DADF2029C53F232007F0C19EC788654B2C2BAAEBE50419B0D5 |
| Certum SMIME ECC CA | Asseco Data Systems S.A. | 2038-07-23 | Valid | 1131362B431A474A0BC5F2BFEC5B3CC5B5D5E1BDE9FAE64C50AC8E26CE295B56 |
| Certum Extended Validation ECC CA | Asseco Data Systems S.A. | 2034-10-17 | Valid | C7063A8DC668205E66153108FBE3BDBF6EDB6F8CE5F616A369BEF6324DCB6354 |
| Certum TLS ECC Root CA | Asseco Data Systems S.A. | 2036-04-15 | Revoked | 1E7833B1747EF5BEC06FC2237DB81E91F23DE8161D3759F9A949334F928D5970 |

## Cross-signed versions

1 certificate(s) in the CCADB have the same subject and public key as Certum EC-384 CA but a different issuer. A server can send one of them so that clients which trust the issuing root, but not Certum EC-384 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 | B72450ABF5047A8AF63EC9D87E331484850B1849A2550A82A86DB6B41ED38760 |

## What happens when it expires

Certum EC-384 CA is valid until 2043-03-26, about 16.4 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.

## FAQ

**Is Certum EC-384 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 EC-384 CA expire?**

On 2043-03-26, about 16.4 years after the 2026-11-10 data snapshot.

**How many intermediate certificates has Certum EC-384 CA issued?**

The CCADB lists 14: 13 valid, 0 expired and 1 revoked. The newest valid one is netartSSL DV TLS G2 E31 CA, valid until 2031-06-06.

**Is Certum EC-384 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).