# emSign ECC Root CA - C3 root certificate (eMudhra)

> emSign ECC Root CA - C3 is a root CA certificate operated by eMudhra (ECDSA P-384, valid until 2043-02-18, SHA-256 BC4D809B). As of the latest CCADB data it is trusted for TLS server authentication by 1 of 4 major root stores: Microsoft.

Source: https://ssl.sh/roots/emudhra-emsign-ecc-root-ca-c3/
Last updated: 2026-11-10

emSign ECC Root CA - C3 is a root CA certificate operated by eMudhra (ECDSA P-384, valid until 2043-02-18, SHA-256 BC4D809B). As of the latest CCADB data it is trusted for TLS server authentication by 1 of 4 major root stores: Microsoft.

| Field | Value |
|---|---|
| CA owner | eMudhra |
| Subject | CN=emSign ECC Root CA - C3,O=eMudhra Inc,OU=emSign PKI,C=US |
| SHA-256 | BC4D809B15189D78DB3E1D8CF4F9726A795DA1643CA5F1358E1DDB0EDC0D7EB3 |
| SPKI SHA-256 | EABC185C4E82D942B1A5978BA3C0181487D6B3B9974E5C49F72F6D0BD9637150 |
| Valid from | 2018-02-18 |
| Expires | 2043-02-18 |
| Key | ECDSA P-384 |
| Signature algorithm | ecdsa-with-SHA384 |
| Serial number | 7B71B68256B8127C9CA8 |
| SHA-1 (Windows thumbprint) | B6AF43C29B81537DF6EF6BC31F1F60150CEE4866 |

## Root store status

| Root store | Status | Trusted for TLS | Distrust for TLS after | Details |
|---|---|---|---|---|
| Chrome | Removed | No | - | - |
| Mozilla | Removed | No | - | - |
| Apple | Not included | No | - | - |
| Microsoft | Included | Yes | - | Trusted EKUs: Server Authentication, Client Authentication, Code Signing, Document Signing, Secure Email, Time Stamping |

The CCADB lists EV policy OID 2.23.140.1.1, 2.23.140.1.3 for this root, but Mozilla does not mark it as EV-enabled.

## Intermediate CAs issued by this root

The CCADB lists 9 intermediate CA certificates signed directly by emSign ECC Root CA - C3: 9 currently valid, 0 expired and 0 revoked (revoked includes those whose parent was revoked).

| Intermediate | Operated by | Expires | Status | SHA-256 |
|---|---|---|---|---|
| emSign ECC Class 1 CA - C3 | eMudhra Technologies Limited | 2033-02-18 | Valid | FAD2E98649F1C606150F55269EBC035AEA22FFAC131DE64BA6900C75D8447B7E |
| emSign ECC Class 2 CA - C3 | eMudhra Technologies Limited | 2033-02-18 | Valid | DB4591F878F6672F5B70733A66AD7C9537B97E6F0AF5CA49AAB8ECB2CE02F86B |
| emSign ECC EV CS CA - C3 | eMudhra Technologies Limited | 2033-02-18 | Valid | CB210979924020970337AE32DA5C3F981A9E05714EC22BB1C3421FE695E5157A |
| emSign ECC EV SSL CA - C3 | eMudhra Technologies Limited | 2033-02-18 | Valid | C0A578F2109E6F42D3D939948DEEAB729B20F7B23B4237ABD8494DF554CF985C |
| emSign ECC CS CA - C3 | eMudhra Technologies Limited | 2033-02-18 | Valid | A3AFD72375C1D7A8330E62D577E13581B72332C8062DFA9CF39E51AE65088582 |
| emSign ECC SSL CA - C3 | eMudhra Technologies Limited | 2033-02-18 | Valid | A061D445399714C38FC101A6E9AFBDB381F112FA5DE7D5BC14904558D1ED3276 |
| emSign ECC Time stamping CA - C3 | eMudhra Technologies Limited | 2033-02-18 | Valid | 71D2EE4DDA251D9244F7CE7C6D478EC552D424EF719F02B71030F2821B6BC853 |
| emSign ECC Class 3 CA - C3 | eMudhra Technologies Limited | 2033-02-18 | Valid | 5A9A03F2D3FE589BE63CDA11820A9F25F074C92034F51C047D34226D252EC025 |
| emSign ECC Device CA - C3 | eMudhra Technologies Limited | 2033-02-18 | Valid | 3D4511D0A80AA949A6D99B253A173471797C4459187A6329E736C37CB5493E46 |

## Cross-signed versions

No certificate in the CCADB has the same subject and public key as emSign ECC Root CA - C3 with a different issuer, so a client has to carry emSign ECC Root CA - C3 itself in its root store to trust it.


## What happens when it expires

emSign ECC Root CA - C3 is valid until 2043-02-18, 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 emSign ECC Root CA - C3 trusted by Chrome, Firefox, Safari and Windows?**

As of 2026-11-10, Microsoft trust it for TLS server authentication; Chrome, Mozilla, Apple do not.

**When does emSign ECC Root CA - C3 expire?**

On 2043-02-18, about 16.3 years after the 2026-11-10 data snapshot.

**How many intermediate certificates has emSign ECC Root CA - C3 issued?**

The CCADB lists 9: 9 valid, 0 expired and 0 revoked. The newest valid one is emSign ECC Class 1 CA - C3, valid until 2033-02-18.

**Is emSign ECC Root CA - C3 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).