# SI-TRUST Root root certificate (SI-TRUST)

> SI-TRUST Root is a root CA certificate operated by SI-TRUST (RSA 3072, valid until 2037-12-25, SHA-256 FAD54081). 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/si-trust-root/
Last updated: 2026-11-10

SI-TRUST Root is a root CA certificate operated by SI-TRUST (RSA 3072, valid until 2037-12-25, SHA-256 FAD54081). 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 | SI-TRUST |
| Subject | CN=SI-TRUST Root,2.5.4.97=VATSI-17659957,O=Republika Slovenija,C=SI |
| SHA-256 | FAD540811AFAE0DC767CDF6572A088FA3CE8493DD82B3B869A67D10AAB4E8124 |
| SPKI SHA-256 | 21AE412566324725FFEFC1DCCF88F16F8D6BF4DBBB37FE8CABA47E8D66C2CDF9 |
| Valid from | 2016-04-25 |
| Expires | 2037-12-25 |
| Key | RSA 3072 |
| Signature algorithm | sha256WithRSAEncryption |
| Serial number | 90AE777600000000571DD06F |
| SHA-1 (Windows thumbprint) | 3A4979B40FA841488200B582FBEEB63AAB9919AE |

## 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, Code Signing, Document Signing, Encrypting File System, OCSP Signing, Secure Email, Time Stamping; Not-before cutoff: 2020-08-01 (Code Signing, Encrypting File System, OCSP Signing) |

The CCADB lists no EV policy OID for SI-TRUST Root.

## Intermediate CAs issued by this root

The CCADB lists 5 intermediate CA certificates signed directly by SI-TRUST Root: 3 currently valid, 2 expired and 0 revoked (revoked includes those whose parent was revoked).

| Intermediate | Operated by | Expires | Status | SHA-256 |
|---|---|---|---|---|
| SI-PASS-CA | SI-TRUST | 2036-05-30 | Valid | B3943BD0C0FFB4B41CD9E1ADE986ABE3358312D6AA6C5DD245BB7B0D63A5F851 |
| SIGOV-CA | SI-TRUST | 2035-12-22 | Valid | 986373DDA59FD09384B0A47C8E3155AB7424ECDA5DD82DB2E2A43FBD7591434E |
| SIGEN-CA G2 | SI-TRUST | 2036-04-23 | Valid | 795015CAACA74715D341120D3F0EFD192A032F1C00391797F54EF9980804A175 |
| sigen-ca | SI-TRUST | 2021-06-27 | Expired | E01601D8F0D69434E699735C4F348FC15FB48F2C2B2003FEE0F54A90E81948FD |
| sigov-ca | SI-TRUST | 2021-01-08 | Expired | BE73A04F7A02AEE2D35C3ADB7AEFA2FA2FF3334D920A4FFD24CDD751FDAA4C1D |

## Cross-signed versions

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


## What happens when it expires

SI-TRUST Root is valid until 2037-12-25, about 11.1 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 SI-TRUST Root 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 SI-TRUST Root expire?**

On 2037-12-25, about 11.1 years after the 2026-11-10 data snapshot.

**How many intermediate certificates has SI-TRUST Root issued?**

The CCADB lists 5: 3 valid, 2 expired and 0 revoked. The newest valid one is SI-PASS-CA, valid until 2036-05-30.

**Is SI-TRUST Root 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).