---
oid: "1.3.6.1.4.1.6449.1.3"
asn1-notation: "{iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprise(1) 6449 certificates(1) categories(3)}"
description: "Extended key usage"
last-modified: "2012-05-14"
---

## OID : `1.3.6.1.4.1.6449.1.3`

```asn1
{iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprise(1) 6449 certificates(1) categories(3)}
```

### Description

Extended key usage

### Child OIDs

- [OID `1.3.6.1.4.1.6449.1.3.5`](https://oid-base.com/get-md/1.3.6.1.4.1.6449.1.3.5): `certified-delivery(5)`

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