---
title: X.509 Certificate Integration Kit
description: The PingFederate X.509 Certificate Integration Kit allows PingFederate to authenticate clients that use X.509 certificates to sign on to applications.
component: x509
page_id: x509:x509_certificate_integration_kit:pf_x509_certificate_ik
canonical_url: https://docs.pingidentity.com/integrations/x509/x509_certificate_integration_kit/pf_x509_certificate_ik.html
revdate: June 17, 2024
section_ids:
  components: Components
  intended-audience: Intended audience
  system-requirements: System requirements
---

# X.509 Certificate Integration Kit

The PingFederate X.509 Certificate Integration Kit allows PingFederate to authenticate clients that use X.509 certificates to sign on to applications.

## Components

X.509 Certificate IdP Adapter

* When PingFederate is acting as an identity provider (IdP) *(tooltip: \<div class="paragraph">
  \<p>A service that manages identity information and provides authentication services to relying clients or SPs within a federated or distributed network.\</p>
  \</div>)*, this adapter validates X.509 certificates against the certificate authorities (CA) in the PingFederate certificate store.

## Intended audience

This document is intended for PingFederate administrators.

Before starting, read the [Known issues and limitations](pf_x509_certificate_ik_known_issues_and_limitations.html).

## System requirements

* PingFederate 10.3 or later.

* Client must use a compatible web browser. Learn more in [Known issues and limitations](pf_x509_certificate_ik_known_issues_and_limitations.html) for details.