# OISTE: root certificates and root store status

> OISTE operates 4 root certificate(s) trusted for TLS by at least one major root store (CCADB owner: OISTE; country: CH). See fingerprints, expiry and Chrome, Mozilla, Apple and Microsoft status.

Source: https://ssl.sh/cas/oiste/
Last updated: 2026-11-10

OISTE operates 4 root certificate(s) trusted for TLS by at least one major root store (CCADB owner: OISTE; country: CH). See fingerprints, expiry and Chrome, Mozilla, Apple and Microsoft status.


## Root certificates (CCADB)

OISTE has 4 root certificate(s) in the CCADB TLS report. Together they have signed 23 intermediate CA certificates, 16 of them still valid.

| Root certificate | Key | Expires | Chrome | Mozilla | Apple | Microsoft | Intermediates | SHA-256 |
|---|---|---|---|---|---|---|---|---|
| OISTE Server Root ECC G1 | ECDSA P-384 | 2048-05-24 | Included | Included | Not included | Not included | 3 | EEC997C0C30F216F7E3B8B307D2BAE42412D753FC8219DAFD1520B2572850F49 |
| OISTE Server Root RSA G1 | RSA 4096 | 2048-05-24 | Included | Included | Not included | Not included | 3 | 9AE36232A5189FFDDB353DFD26520C015395D22777DAC59DB57B98C089A651E6 |
| OISTE WISeKey Global Root GB CA | RSA 2048 | 2039-12-01 | Included | Included | Included | Included | 15 | 6B9C08E86EB0F767CFAD65CD98B62149E5494A67F5845E7BD1ED019F27B86BD6 |
| OISTE WISeKey Global Root GC CA | ECDSA P-384 | 2042-05-09 | Included | Included | Included | Included | 2 | 8560F91C3624DABA9570B5FEA0DBE36FF11A8323BE9486854FB3F34A5571198D |

## CAA records

The CCADB lists 4 CAA issuer domain(s) recognized by the currently valid intermediate certificates of OISTE. One issue record with any of them lets OISTE issue for your domain. Domains that contain the CA's name come first, the rest by how many valid intermediates recognize them.

```
example.com. CAA 0 issue "oiste.org"
example.com. CAA 0 issue "certifyid.com"
example.com. CAA 0 issue "hightrusted.com"
```

## Audits

Audit data the CCADB records for the TLS roots of OISTE. Auditor(s): Auren. The most recent audit period ended on 2026-05-08.

- Standard audit: WebTrust 2025-05-09 – 2026-05-08 (https://www.cpacanada.ca/api/getPDFWebTrust?attachmentId=73da5a8c-4891-421a-b668-1ef7565f2ef1)
- Network security: WebTrust 2025-05-09 – 2026-05-08 (https://www.cpacanada.ca/api/getPDFWebTrust?attachmentId=0c831656-74f5-4c72-a01b-858e4858cce8)
- TLS Baseline Requirements: WebTrust 2025-05-09 – 2026-05-08 (https://www.cpacanada.ca/api/getPDFWebTrust?attachmentId=c65331d6-aca9-4687-9a95-bd64f9624a66)
- TLS EV Guidelines: WebTrust 2025-05-09 – 2026-05-08 (https://www.cpacanada.ca/api/getPDFWebTrust?attachmentId=8114aad4-13c3-4b9a-8dcc-f68667bf798e)

## CP/CPS documents

Certificate Policy and Certification Practice Statement links that OISTE has disclosed in the CCADB for its TLS roots, with effective dates:

- Markdown CP/CPS: https://raw.githubusercontent.com/OISTE/repository/refs/heads/main/OWGTMCPS.md

## Report a certificate problem

To report a mis-issued certificate, a compromised private key or other abuse, use the channels OISTE lists in the CCADB (replace [at] and [dot] in addresses):

- cps[at]wisekey[dot]com

## Incident reports

CAs in Mozilla's root program file compliance incident reports in Mozilla's Bugzilla (product CA Program, component CA Certificate Compliance). This search lists the bugs whose title contains the words “OISTE”: https://bugzilla.mozilla.org/buglist.cgi?query_format=advanced&product=CA+Program&component=CA+Certificate+Compliance&short_desc_type=allwords&short_desc=OISTE&order=changeddate+DESC

## FAQ

**What CAA record allows OISTE to issue certificates?**

Publish example.com. CAA 0 issue "oiste.org". The CCADB lists 4 recognized domain(s) for OISTE: oiste.org, certifyid.com, hightrusted.com, wisekey.com.

**Who audits OISTE?**

Auren, according to the CCADB. The latest TLS Baseline Requirements audit (WebTrust) covers 2025-05-09 to 2026-05-08; the statement is dated 2026-07-28.

**How do I report a problem certificate to OISTE?**

Use the channel(s) listed in the CCADB: cps[at]wisekey[dot]com.

**How many root certificates does OISTE have?**

4 in the CCADB TLS report. Trusted for TLS: Chrome 4, Mozilla 4, Apple 2, Microsoft 2. They have signed 23 intermediates, 16 of them still valid.

Sources: CCADB All Certificate Information (V5), List of CAA Identifiers, List of CA problem reporting mechanisms and TLS Server Authentication report (ccadb.org/resources).