New-AdfsAzureMfaTenantCertificate

Module:

ADFS

Creates a certificate for the AD FS farm to use to connect to Azure MFA, or returns the currently configured certificate.

Syntax

New-AdfsAzureMfaTenantCertificate
   -TenantId <String>
   [-Renew <Boolean>]
   [-WhatIf]
   [-Confirm]
   [<CommonParameters>]

Description

The New-AdfsAzureMfaTenantCertificate cmdlet creates a certificate for an Active Directory Federation Services (AD FS) farm to use to connect to Azure Multi-Factor Authentication (MFA), or returns the currently configured certificate.

The cmdlet looks in the local machine My store for a certificate with Issuer and Subject equal to:

• CN = <tenant ID>
• OU = Microsoft AD FS Azure MFA

If it does not find one, it generates it.

Examples

Example 1: Create a certificate and enable Azure MFA on an AD FS farm

PS C:\> $certbase64 = New-AdfsAzureMfaTenantCertificate -TenantID <your tenant ID>
PS C:\> New-AzureADServicePrincipalKeyCredential -ObjectId 981f26a1-7f43-403b-a875-f8b09b8cd720 -Type asymmetric -Usage verify -Value $certBase64
PS C:\> Set-AdfsAzureMfaTenant -TenantId <your tenant ID> -ClientId 981f26a1-7f43-403b-a875-f8b09b8cd720

These commands create a certificate for Azure MFA, register the certificate in a tenant, and enable Azure MFA on an AD FS farm.

Note

Customers are encouraged to use the newer Microsoft Graph PowerShell module.

Example 2: Determine which certificate Azure MFA is using

$CertInBase64 = New-AdfsAzureMfaTenantCertificate -TenantID
[Security.Cryptography.X509Certificates.X509Certificate2]([System.Convert]::FromBase64String($CertInBase64))

After AD FS has been configured for Azure MFA, this command determines which certificate Azure MFA is using and when it expires.

Parameters

-Confirm

Prompts you for confirmation before running the cmdlet.

Type:	SwitchParameter
Aliases:	cf
Position:	Named
Default value:	False
Required:	False
Accept pipeline input:	False
Accept wildcard characters:	False

-Renew

Renew certificate. Do not use if the certificate has already expired. In this scenario, the existing expired certificate is replaced with a new certificate.

Type:	Boolean
Position:	Named
Default value:	None
Required:	False
Accept pipeline input:	False
Accept wildcard characters:	False

-TenantId

Specifies the GUID representation of the Microsoft Entra tenant ID. This can be found in the URL bar of the Microsoft Entra admin center, as in this example: https://manage.windowsazure.com/contoso.onmicrosoft.com#Workspaces/ActiveDirectoryExtension/Directory/<tenantID_GUID>/directoryQuickStart

Alternatively, you can use the Login-AzureRmAccount cmdlet to get the tenant ID.

Type:	String
Position:	Named
Default value:	None
Required:	True
Accept pipeline input:	False
Accept wildcard characters:	False

-WhatIf

Shows what would happen if the cmdlet runs. The cmdlet is not run.

Type:	SwitchParameter
Aliases:	wi
Position:	Named
Default value:	False
Required:	False
Accept pipeline input:	False
Accept wildcard characters:	False

Related Links

• Set-AdfsAzureMfaTenant