# SwissSign RSA TLS Root CA 2022 - 1 root certificate (SwissSign AG)

> SwissSign RSA TLS Root CA 2022 - 1 is a root CA certificate operated by SwissSign AG (RSA 4096, valid until 2047-06-08, SHA-256 193144F4). As of the latest CCADB data it is trusted for TLS server authentication by 3 of 4 major root stores: Chrome, Mozilla, Microsoft.

Source: https://ssl.sh/roots/swisssign-rsa-tls-root-ca-2022-1/
Last updated: 2026-11-10

SwissSign RSA TLS Root CA 2022 - 1 is a root CA certificate operated by SwissSign AG (RSA 4096, valid until 2047-06-08, SHA-256 193144F4). As of the latest CCADB data it is trusted for TLS server authentication by 3 of 4 major root stores: Chrome, Mozilla, Microsoft.

| Field | Value |
|---|---|
| CA owner | SwissSign AG |
| Subject | CN=SwissSign RSA TLS Root CA 2022 - 1,O=SwissSign AG,C=CH |
| SHA-256 | 193144F431E0FDDB740717D4DE926A571133884B4360D30E272913CBE660CE41 |
| SPKI SHA-256 | EBC978AE0DD9E5822D6B19652596F620C93D7CAEFA952191CB050A632CA9005F |
| Valid from | 2022-06-08 |
| Expires | 2047-06-08 |
| Key | RSA 4096 |
| Signature algorithm | sha256WithRSAEncryption |
| Serial number | 43FA0C5F4E1B801844EFD1B44F351F44F480EDCB |
| SHA-1 (Windows thumbprint) | 81340ABE4CCDCECCE77DCC8AD457E245A0775DCE |

## Root store status

| Root store | Status | Trusted for TLS | Distrust for TLS after | Details |
|---|---|---|---|---|
| Chrome | Included | Yes | 2027-06-14 | - |
| Mozilla | Included | Yes | - | Trust bits: Websites; EV policy OIDs: 2.23.140.1.1; First included in: 3.114 / 142 |
| Apple | Not included | No | - | - |
| Microsoft | Included | Yes | - | Trusted EKUs: Server Authentication |

Chrome stops trusting TLS certificates under this root whose SCTs are dated after 2027-06-14 (sct_not_after). Mozilla treats it as an EV root for policy OID 2.23.140.1.1.

## Intermediate CAs issued by this root

The CCADB lists no intermediate CA certificate signed directly by SwissSign RSA TLS Root CA 2022 - 1.


## Cross-signed versions

1 certificate(s) in the CCADB have the same subject and public key as SwissSign RSA TLS Root CA 2022 - 1 but a different issuer. A server can send one of them so that clients which trust the issuing root, but not SwissSign RSA TLS Root CA 2022 - 1, can still build a chain.

| Signed by | CA owner | Expires | Status | SHA-256 |
|---|---|---|---|---|
| SwissSign Gold CA - G2 | SwissSign AG | 2036-09-22 | Valid | 288B4A9F605B09B999B215850825C81F9B537DBAF23664ACA98BF6BA98EDC379 |

## What happens when it expires

SwissSign RSA TLS Root CA 2022 - 1 is valid until 2047-06-08, about 20.6 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. Root programs can stop trusting it before it expires: Chrome 2027-06-14.

## FAQ

**Is SwissSign RSA TLS Root CA 2022 - 1 trusted by Chrome, Firefox, Safari and Windows?**

As of 2026-11-10, Chrome, Mozilla, Microsoft trust it for TLS server authentication; Apple do not. Distrust-after dates already set: Chrome 2027-06-14.

**When does SwissSign RSA TLS Root CA 2022 - 1 expire?**

On 2047-06-08, about 20.6 years after the 2026-11-10 data snapshot.

**How many intermediate certificates has SwissSign RSA TLS Root CA 2022 - 1 issued?**

The CCADB lists no intermediate certificate signed directly by SwissSign RSA TLS Root CA 2022 - 1.

**Is SwissSign RSA TLS Root CA 2022 - 1 cross-signed?**

Yes. The CCADB has 1 cross-certificate(s) with its subject and key, signed by SwissSign Gold CA - G2; 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).