---
title: objectIdentifierFirstComponentMatch
description: Compares an assertion value of OID syntax to a value whose syntax is an ASN.1 SEQUENCE with a mandatory first component of the ASN.1 OBJECT IDENTIFIER type.
component: pingds
version: 8.1
page_id: pingds:schemaref:mr-objectIdentifierFirstComponentMatch
canonical_url: https://docs.pingidentity.com/pingds/8.1/schemaref/mr-objectIdentifierFirstComponentMatch.html
---

# objectIdentifierFirstComponentMatch

Compares an assertion value of OID syntax to a value whose syntax is an ASN.1 SEQUENCE with a mandatory first component of the ASN.1 OBJECT IDENTIFIER type.

The rule evaluates to TRUE if and only if the assertion value matches the first component of the attribute value according to the `objectIdentifierMatch` matching rule.

|                    |                                                           |
| ------------------ | --------------------------------------------------------- |
| *OID*              | 2.5.13.30                                                 |
| *Names*            | objectIdentifierFirstComponentMatch                       |
| *Assertion syntax* | [OID](s-OID.html)                                         |
| *Origin*           | [RFC 4517](https://datatracker.ietf.org/doc/html/rfc4517) |