---
oid: "1.2.643.3"
asn1-notation: "{iso(1) member-body(2) ru(643) reg3(3)}"
description: "Certification Authorities (CA)"
last-modified: "2025-01-28"
tags: [oid-repository]
---

## OID: `1.2.643.3`

```asn1
{iso(1) member-body(2) ru(643) reg3(3)}
```

### Description

Certification Authorities (CA)

**Classification**: Registration authority, PKI (Public key infrastructure)

### Supplementary information

See [child OIDs](https://oid.iitrust.ru/oid_search/16/#page) (in Russian).
Identifier "`ca`" appears in IETF [RFC 9215](https://www.rfc-editor.org/rfc/rfc9215.html).

### Registrant

Name: Marina Ignatieva

### Child OIDs

There are 311 child OIDs.
- [OID `1.2.643.3.1`](https://oid-base.com/get-md/1.2.643.3.1): `1`
- ... *(309 additional child OIDs omitted)*
- [OID `1.2.643.3.316`](https://oid-base.com/get-md/1.2.643.3.316): `316`

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