---
title: Duo Security Integration Kit 2.2
description: The Duo Security Integration Kit allows PingFederate to use the Duo Security service for multi-factor authentication (MFA). This sign-on experience uses an iFrame and works with the Duo Auth API.
component: duosecurity
page_id: duosecurity:duo_security_integration_kit_22:pf_duo_security_ik_22
canonical_url: https://docs.pingidentity.com/integrations/duosecurity/duo_security_integration_kit_22/pf_duo_security_ik_22.html
revdate: June 7, 2024
section_ids:
  components: Components
  intended-audience: Intended audience
  system-requirements: System requirements
---

# Duo Security Integration Kit 2.2

The Duo Security Integration Kit allows PingFederate to use the Duo Security service for multi-factor authentication (MFA). This sign-on experience uses an iFrame and works with the Duo Auth API.

|   |                                                                                                                                                                                                                                                 |
| - | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
|   | This documentation is for Duo Security Integration Kit 2.2 and earlier. For later versions of the integration kit, see the latest [Duo Security Integration Kit 3.x](../duo_security_integration_kit_3x/pf_duo_security_ik.html) documentation. |

## Components

* Duo Security IdP Adapter

  * Allows PingFederate to trigger a multi-factor authentication (MFA) challenge during sign on.

  * Allows for MFA when single sign-on (SSO) is intiated at the identity provider (IdP) or service provider (SP).

* Template and script files

  * When a user signs on through PingFederate and the authentication policy triggers the Duo Security Adapter, these files present the Duo Security authentication page.

## Intended audience

This document is intended for PingFederate administrators.

If you need help during the setup process, see the following resources:

* [PingFederate](https://duo.com/docs/pingfederate) in the Duo Security documentation

* The following sections of the PingFederate documentation:

  * [Managing IdP adapters](https://docs.pingidentity.com/pingfederate/latest/administrators_reference_guide/pf_managing_idp_adapters.html)

  * [Authentication policies](https://docs.pingidentity.com/pingfederate/latest/administrators_reference_guide/pf_authentication_policies.html)

## System requirements

* PingFederate 8.0 or later

* A Duo Security administrator account