# MOIS SSL Root CA root certificate (KLID (Korea))

> MOIS SSL Root CA is a root CA certificate operated by KLID (Korea) (RSA 4096, valid until 2043-02-22, SHA-256 1CF341AE). 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/klid-mois-ssl-root-ca/
Last updated: 2026-11-10

MOIS SSL Root CA is a root CA certificate operated by KLID (Korea) (RSA 4096, valid until 2043-02-22, SHA-256 1CF341AE). 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 | KLID (Korea) |
| Subject | CN=MOIS SSL Root CA,O=Ministry of the Interior and Safety,C=KR |
| SHA-256 | 1CF341AE35341AC3AE1DC68D5B10DC0C9DC1307656F75FD92CA2C68489D52E9A |
| SPKI SHA-256 | 2BBD5357548A6F4BB963DC1E0F9AF986C6528EF951FA2213123CDCE64823C921 |
| Valid from | 2023-02-22 |
| Expires | 2043-02-22 |
| Key | RSA 4096 |
| Signature algorithm | sha256WithRSAEncryption |
| Serial number | 449EFC3EB1A24235A08C1DD3B7062C1167488F2 |
| SHA-1 (Windows thumbprint) | 65F9901C549C9BEC6BF422B7FD8EE382F626186B |

## Root store status

| Root store | Status | Trusted for TLS | Distrust for TLS after | Details |
|---|---|---|---|---|
| Chrome | Not included | No | - | - |
| Mozilla | Not included | No | - | - |
| Apple | Not included | No | - | - |
| Microsoft | Included | Yes | - | Trusted EKUs: Server Authentication, Client Authentication |

The CCADB lists no EV policy OID for MOIS SSL Root CA.

## Intermediate CAs issued by this root

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signed directly by MOIS SSL Root CA: 1 currently valid, 0 expired and 0 revoked (revoked includes those whose parent was revoked).

| Intermediate | Operated by | Expires | Status | SHA-256 |
|---|---|---|---|---|
| MOIS SSL Server CA | Government of Korea, KLID | 2033-02-23 | Valid | C435BF6129E9773DECAECA19CA8AC9C372E72BB0D280983C9D45D5602710A556 |

## Cross-signed versions

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


## What happens when it expires

MOIS SSL Root CA is valid until 2043-02-22, 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 MOIS SSL Root CA 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 MOIS SSL Root CA expire?**

On 2043-02-22, about 16.3 years after the 2026-11-10 data snapshot.

**How many intermediate certificates has MOIS SSL Root CA issued?**

The CCADB lists 1: 1 valid, 0 expired and 0 revoked. The newest valid one is MOIS SSL Server CA, valid until 2033-02-23.

**Is MOIS SSL Root CA 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).