windows-itpro-docs/windows/security/identity-protection/hello-for-business/hello-hybrid-key-whfb-settings-dir-sync.md
Daniel Simpson 15cac5b223
Merge pull request #4461 from get-itips/master
Changed author to mapalko
2019-07-17 08:24:29 -07:00

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---
title: Configuring Hybrid key trust Windows Hello for Business - Directory Synchronization
description: Configuring Hybrid key trust Windows Hello for Business - Directory Synchronization
keywords: identity, PIN, biometric, Hello, passport, WHFB, dirsync, connect, Windows Hello, AD Connect, key trust, key-trust
ms.prod: w10
ms.mktglfcycl: deploy
ms.sitesec: library
ms.pagetype: security, mobile
audience: ITPro
author: mapalko
ms.author: mapalko
manager: dansimp
ms.collection: M365-identity-device-management
ms.topic: article
localizationpriority: medium
ms.date: 08/19/2018
ms.reviewer:
---
# Configure Hybrid Windows Hello for Business: Directory Synchronization
**Applies to**
- Windows 10, version 1703 or later
- Hybrid deployment
- Key trust
## Directory Synchronization
In hybrid deployments, users register the public portion of their Windows Hello for Business credential with Azure. Azure AD Connect synchronizes the Windows Hello for Business public key to Active Directory.
### Group Memberships for the Azure AD Connect Service Account
>[!IMPORTANT]
> If you already have a Windows Server 2016 domain controller in your domain, you can skip **Configure Permissions for Key Synchronization**. For more detail see [Configure Hybrid Windows Hello for Business: Directory Synchronization](https://docs.microsoft.com/windows/security/identity-protection/hello-for-business/hello-hybrid-cert-whfb-settings-dir-sync).
The KeyAdmins global group provides the Azure AD Connect service with the permissions needed to read and write the public key to Active Directory.
Sign-in a domain controller or management workstation with _Domain Admin_ equivalent credentials.
1. Open **Active Directory Users and Computers**.
2. Click the **Users** container in the navigation pane.
3. Right-click **Key Admins** in the details pane and click **Properties**.
4. Click the **Members** tab and click **Add**
5. In the **Enter the object names to select** text box, type the name of the Azure AD Connect service account. Click **OK**.
6. Click **OK** to return to **Active Directory Users and Computers**.
### Section Review
> [!div class="checklist"]
> * Configure group membership for Azure AD Connect
>[!div class="step-by-step"]
[< Configure Active Directory](hello-hybrid-key-whfb-settings-ad.md)
[Configure PKI >](hello-hybrid-key-whfb-settings-pki.md)
<hr>
## Follow the Windows Hello for Business hybrid key trust deployment guide
1. [Overview](hello-hybrid-cert-trust.md)
2. [Prerequisites](hello-hybrid-key-trust-prereqs.md)
3. [New Installation Baseline](hello-hybrid-key-new-install.md)
4. [Configure Directory Synchronization](hello-hybrid-key-trust-dirsync.md)
5. [Configure Azure Device Registration](hello-hybrid-key-trust-devreg.md)
6. Configure Windows Hello for Business settings: Directory Synchronization (*You are here*)
7. [Sign-in and Provision](hello-hybrid-key-whfb-provision.md)