DSCResources/MSFT_xCertReq/MSFT_xCertReq.psm1
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#Requires -Version 4.0 $modulePath = Join-Path -Path (Split-Path -Path (Split-Path -Path $PSScriptRoot -Parent) -Parent) -ChildPath 'Modules' # Import the Certificate Common Modules Import-Module -Name (Join-Path -Path $modulePath ` -ChildPath (Join-Path -Path 'CertificateDsc.Common' ` -ChildPath 'CertificateDsc.Common.psm1')) # Import the Certificate Resource Helper Module Import-Module -Name (Join-Path -Path $modulePath ` -ChildPath (Join-Path -Path 'CertificateDsc.ResourceHelper' ` -ChildPath 'CertificateDsc.ResourceHelper.psm1')) # Import the Certificate PDT Helper Module Import-Module -Name (Join-Path -Path $modulePath ` -ChildPath (Join-Path -Path 'CertificateDsc.PDT' ` -ChildPath 'CertificateDsc.PDT.psm1')) # Import Localization Strings $localizedData = Get-LocalizedData ` -ResourceName 'MSFT_xCertReq' ` -ResourcePath (Split-Path -Parent $Script:MyInvocation.MyCommand.Path) <# .SYNOPSIS Returns the current state of the certificate that may need to be requested. .PARAMETER Subject Provide the text string to use as the subject of the certificate. .PARAMETER CAServerFQDN The FQDN of the Active Directory Certificate Authority on the local area network. .PARAMETER CARootName The name of the certificate authority, by default this will be in format domain-servername-ca. .PARAMETER KeyLength The bit length of the encryption key to be used. .PARAMETER Exportable The option to allow the certificate to be exportable, by default it will be true. .PARAMETER ProviderName The selection of provider for the type of encryption to be used. .PARAMETER OID The Object Identifier that is used to name the object. .PARAMETER KeyUsage The Keyusage is a restriction method that determines what a certificate can be used for. .PARAMETER CertificateTemplate The template used for the definiton of the certificate. .PARAMETER SubjectAltName The subject alternative name used to creat ethe certificate. .PARAMETER Credential The `PSCredential` object containing the credentials that will be used to access the template in the Certificate Authority. .PARAMETER AutoRenew Determines if the resource will also renew a certificate within 7 days of expiration. .PARAMETER CAType The type of CA in use, Standalone/Enterprise. .PARAMETER CepURL The URL to the Certification Enrollment Policy Service. .PARAMETER CesURL The URL to the Certification Enrollment Service. .PARAMETER UseMachineContext Determines if the machine should be impersonated for a request. Used for templates like Domain Controller Authentication .PARAMETER FriendlyName Specifies a friendly name for the certificate. #> function Get-TargetResource { [CmdletBinding()] [OutputType([System.Collections.Hashtable])] param ( [Parameter(Mandatory = $true)] [ValidateNotNullOrEmpty()] [System.String] $Subject, [Parameter()] [System.String] $CAServerFQDN, [Parameter()] [System.String] $CARootName, [Parameter()] [ValidateSet("1024", "2048", "4096", "8192")] [System.String] $KeyLength = '2048', [Parameter()] [System.Boolean] $Exportable = $true, [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $ProviderName = '"Microsoft RSA SChannel Cryptographic Provider"', [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $OID = '1.3.6.1.5.5.7.3.1', [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $KeyUsage = '0xa0', [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $CertificateTemplate = 'WebServer', [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $SubjectAltName, [Parameter()] [System.Management.Automation.PSCredential] $Credential, [Parameter()] [System.Boolean] $AutoRenew, [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $CAType = 'Enterprise', [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $CepURL, [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $CesURL, [Parameter()] [System.Boolean] $UseMachineContext, [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $FriendlyName ) # The certificate authority, accessible on the local area network if ([string]::IsNullOrWhiteSpace($CAServerFQDN) -or [string]::IsNullOrWhiteSpace($CARootName)) { $caObject = Find-CertificateAuthority $CARootName = $caObject.CARootName $CAServerFQDN = $caObject.CAServerFQDN } $ca = "$CAServerFQDN\$CARootName" Write-Verbose -Message ( @( "$($MyInvocation.MyCommand): " $($LocalizedData.GettingCertReqStatusMessage -f $Subject, $CA) ) -join '' ) $cert = Get-Childitem -Path Cert:\LocalMachine\My | Where-Object -FilterScript { $_.Subject -eq "CN=$Subject" -and ` $_.Issuer.split(',')[0] -eq "CN=$CARootName" } # If multiple certs have the same subject and were issued by the CA, return the newest $cert = $cert | Sort-Object -Property NotBefore -Descending | Select-Object -First 1 if ($cert) { Write-Verbose -Message ( @( "$($MyInvocation.MyCommand): " $($LocalizedData.CertificateExistsMessage -f $Subject, $ca, $cert.Thumbprint) ) -join '' ) $returnValue = @{ Subject = $Cert.Subject.split(',')[0].replace('CN=', '') CAServerFQDN = $caObject.CAServerFQDN CARootName = $Cert.Issuer.split(',')[0].replace('CN=', '') KeyLength = $Cert.Publickey.Key.KeySize Exportable = $Cert.PrivateKey.CspKeyContainerInfo.Exportable ProviderName = $Cert.PrivateKey.CspKeyContainerInfo.ProviderName OID = $null # This value can't be determined from the cert KeyUsage = $null # This value can't be determined from the cert CertificateTemplate = Get-CertificateTemplateName -Certificate $Cert SubjectAltName = Get-CertificateSan -Certificate $Cert FriendlyName = $Cert.FriendlyName } } else { $returnValue = @{} } $returnValue } # end function Get-TargetResource <# .SYNOPSIS Requests a new certificate based on the parameters provided. .PARAMETER Subject Provide the text string to use as the subject of the certificate. .PARAMETER CAServerFQDN The FQDN of the Active Directory Certificate Authority on the local area network. .PARAMETER CARootName The name of the certificate authority, by default this will be in format domain-servername-ca. .PARAMETER KeyLength The bit length of the encryption key to be used. .PARAMETER Exportable The option to allow the certificate to be exportable, by default it will be true. .PARAMETER ProviderName The selection of provider for the type of encryption to be used. .PARAMETER OID The Object Identifier that is used to name the object. .PARAMETER KeyUsage The Keyusage is a restriction method that determines what a certificate can be used for. .PARAMETER CertificateTemplate The template used for the definiton of the certificate. .PARAMETER SubjectAltName The subject alternative name used to create the certificate. .PARAMETER Credential The `PSCredential` object containing the credentials that will be used to access the template in the Certificate Authority. .PARAMETER AutoRenew Determines if the resource will also renew a certificate within 7 days of expiration. .PARAMETER CAType The type of CA in use, Standalone/Enterprise. .PARAMETER CepURL The URL to the Certification Enrollment Policy Service. .PARAMETER CesURL The URL to the Certification Enrollment Service. .PARAMETER UseMachineContext Determines if the machine should be impersonated for a request. Used for templates like Domain Controller Authentication .PARAMETER FriendlyName Specifies a friendly name for the certificate. #> function Set-TargetResource { [CmdletBinding()] param ( [Parameter(Mandatory = $true)] [ValidateNotNullOrEmpty()] [System.String] $Subject, [Parameter()] [System.String] $CAServerFQDN, [Parameter()] [System.String] $CARootName, [Parameter()] [ValidateSet("1024", "2048", "4096", "8192")] [System.String] $KeyLength = '2048', [Parameter()] [System.Boolean] $Exportable = $true, [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $ProviderName = '"Microsoft RSA SChannel Cryptographic Provider"', [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $OID = '1.3.6.1.5.5.7.3.1', [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $KeyUsage = '0xa0', [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $CertificateTemplate = 'WebServer', [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $SubjectAltName, [Parameter()] [System.Management.Automation.PSCredential] $Credential, [Parameter()] [System.Boolean] $AutoRenew, [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $CAType = 'Enterprise', [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $CepURL, [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $CesURL, [Parameter()] [System.Boolean] $UseMachineContext, [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $FriendlyName ) # The certificate authority, accessible on the local area network if ([string]::IsNullOrWhiteSpace($CAServerFQDN) -or [string]::IsNullOrWhiteSpace($CARootName)) { $caObject = Find-CertificateAuthority $CARootName = $caObject.CARootName $CAServerFQDN = $caObject.CAServerFQDN } $ca = "$CAServerFQDN\$CARootName" Write-Verbose -Message ( @( "$($MyInvocation.MyCommand): " $($LocalizedData.StartingCertReqMessage -f $Subject, $ca) ) -join '' ) # If the Subject does not contain a full X500 path, construct just the CN if (($Subject.split('=').Count) -eq 1) { $Subject = "CN=$Subject" } # if # If we should look for renewals, check for existing certs if ($AutoRenew) { $certs = Get-Childitem -Path Cert:\LocalMachine\My | Where-Object -FilterScript { $_.Subject -eq $Subject -and ` $_.Issuer.split(',')[0] -eq "CN=$CARootName" -and ` $_.NotAfter -lt (Get-Date).AddDays(30) } # If multiple certs have the same subject and were issued by the CA and are 30 days from expiration, return the newest $firstCert = $certs | Sort-Object -Property NotBefore -Descending | Select-Object -First 1 $thumbprint = $firstCert | ForEach-Object -Process { $_.Thumbprint } } # if <# Information that will be used in the INF file to generate the certificate request In future versions, select variables from the list below could be moved to parameters! #> $Subject = "`"$Subject`"" $keySpec = '1' $machineKeySet = 'TRUE' $smime = 'FALSE' $privateKeyArchive = 'FALSE' $userProtected = 'FALSE' $useExistingKeySet = 'FALSE' $providerType = '12' $requestType = 'CMC' # A unique identifier for temporary files that will be used when interacting with the command line utility $guid = [system.guid]::NewGuid().guid $workingPath = Join-Path -Path $env:Temp -ChildPath "xCertReq-$guid" $infPath = [System.IO.Path]::ChangeExtension($workingPath, '.inf') $reqPath = [System.IO.Path]::ChangeExtension($workingPath, '.req') $cerPath = [System.IO.Path]::ChangeExtension($workingPath, '.cer') $rspPath = [System.IO.Path]::ChangeExtension($workingPath, '.rsp') # Create INF file $requestDetails = @" [NewRequest] Subject = $Subject KeySpec = $keySpec KeyLength = $KeyLength Exportable = $($Exportable.ToString().ToUpper()) MachineKeySet = $MachineKeySet SMIME = $smime PrivateKeyArchive = $privateKeyArchive UserProtected = $userProtected UseExistingKeySet = $useExistingKeySet ProviderName = $ProviderName ProviderType = $providerType RequestType = $requestType KeyUsage = $KeyUsage "@ if ($FriendlyName) { $requestDetails += @" FriendlyName = "$FriendlyName" "@ } $requestDetails += @" [RequestAttributes] CertificateTemplate = "$CertificateTemplate" [EnhancedKeyUsageExtension] OID = $OID "@ # If a standalone CA is used certificate templates are not used. if ($CAType -ne 'Enterprise') { $requestDetails = $requestDetails.Replace(@" [RequestAttributes] CertificateTemplate = "$CertificateTemplate" [EnhancedKeyUsageExtension] "@, '[EnhancedKeyUsageExtension]') } if ($PSBoundParameters.ContainsKey('SubjectAltName')) { # If a Subject Alt Name was specified, add it. $requestDetails += @" [Extensions] 2.5.29.17 = "{text}$SubjectAltName" "@ } if ($thumbprint) { $requestDetails += @" RenewalCert = $Thumbprint "@ } Set-Content -Path $infPath -Value $requestDetails <# Certreq.exe is used to handle the request of the new certificate because of the lack of native PowerShell Certificate cmdlets. Syntax: https://technet.microsoft.com/en-us/library/cc736326.aspx Reference: https://support2.microsoft.com/default.aspx?scid=kb;EN-US;321051 #> # NEW: Create a new request as directed by PolicyFileIn Write-Verbose -Message ( @( "$($MyInvocation.MyCommand): " $($LocalizedData.CreateRequestCertificateMessage -f $infPath, $reqPath) ) -join '' ) <# If enrollment server is specified the request will be towards the specified URLs instead, using credentials for authentication. #> if ($Credential -and $CepURL -and $CesURL) { $credPW = [System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($Credential.Password) $createRequest = & certreq.exe @( '-new', '-q', '-username', $Credential.UserName, '-p', [System.Runtime.InteropServices.Marshal]::PtrToStringAuto($credPW), '-PolicyServer', $CepURL, '-config', $CesURL, $infPath, $reqPath ) } else { $createRequest = & certreq.exe @('-new', '-q', $infPath, $reqPath) } # if Write-Verbose -Message ( @( "$($MyInvocation.MyCommand): " $($LocalizedData.CreateRequestResultCertificateMessage -f ($createRequest | Out-String)) ) -join '' ) <# SUBMIT: Submit a request to a Certification Authority. DSC runs in the context of LocalSystem, which uses the Computer account in Active Directory to authenticate to network resources The Credential paramter with PDT is used to impersonate a user making the request #> if (Test-Path -Path $reqPath) { Write-Verbose -Message ( @( "$($MyInvocation.MyCommand): " $($LocalizedData.SubmittingRequestCertificateMessage -f $reqPath, $cerPath, $ca) ) -join '' ) if ($Credential) { <# If enrollment server is specified the request will be towards the specified URLs instead, using credentials for authentication. #> if ($CepURL -and $CesURL) { $credPW = [System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($Credential.Password) $submitRequest = & certreq.exe @( '-submit', '-q', '-username', $Credential.UserName, '-p', [System.Runtime.InteropServices.Marshal]::PtrToStringAuto($credPW), '-PolicyServer', $CepURL, '-config', $CesURL, $ReqPath, $CerPath ) } else { <# Assemble the command and arguments to pass to the powershell process that will request the certificate #> $certReqOutPath = [System.IO.Path]::ChangeExtension($workingPath, '.out') $command = "$PSHOME\PowerShell.exe" if ($UseMachineContext) { $arguments = "-Command ""& $env:SystemRoot\system32\certreq.exe" + ` " @('-submit','-q','-adminforcemachine','-config','$ca','$reqPath','$cerPath')" + ` " | Set-Content -Path '$certReqOutPath'""" } else { $arguments = "-Command ""& $env:SystemRoot\system32\certreq.exe" + ` " @('-submit','-q','-config','$ca','$reqPath','$cerPath')" + ` " | Set-Content -Path '$certReqOutPath'""" } <# This may output a win32-process object, but it often does not because of a timing issue in PDT (the process has often completed before the process can be read in). #> $null = Start-Win32Process ` -Path $command ` -Arguments $arguments ` -Credential $Credential Write-Verbose -Message ( @( "$($MyInvocation.MyCommand): " $($LocalizedData.SubmittingRequestProcessCertificateMessage) ) -join '' ) $null = Wait-Win32ProcessStop ` -Path $command ` -Arguments $arguments ` -Credential $Credential if (Test-Path -Path $certReqOutPath) { $submitRequest = Get-Content -Path $certReqOutPath Remove-Item -Path $certReqOutPath -Force } else { New-InvalidOperationException ` -Message ($LocalizedData.CertReqOutNotFoundError -f $certReqOutPath) } # if } # if } else { $submitRequest = & certreq.exe @('-submit', '-q', '-config', $CA, $ReqPath, $CerPath) } # if Write-Verbose -Message ( @( "$($MyInvocation.MyCommand): " $($LocalizedData.SubmittingRequestResultCertificateMessage -f ($submitRequest | Out-String)) ) -join '' ) } else { New-InvalidOperationException ` -Message ($LocalizedData.CertificateReqNotFoundError -f $reqPath) } # if # ACCEPT: Accept the request if (Test-Path -Path $cerPath) { Write-Verbose -Message ( @( "$($MyInvocation.MyCommand): " $($LocalizedData.AcceptingRequestCertificateMessage -f $cerPath, $ca) ) -join '' ) $acceptRequest = & certreq.exe @('-accept', '-machine', '-q', $cerPath) Write-Verbose -Message ( @( "$($MyInvocation.MyCommand): " $($LocalizedData.AcceptingRequestResultCertificateMessage -f ($acceptRequest | Out-String)) ) -join '' ) } else { New-InvalidOperationException ` -Message ($LocalizedData.CertificateCerNotFoundError -f $cerPath) } # if Write-Verbose -Message ( @( "$($MyInvocation.MyCommand): " $($LocalizedData.CleaningUpRequestFilesMessage -f "$($workingPath).*") ) -join '' ) Remove-Item -Path "$($workingPath).*" -Force } # end function Set-TargetResource <# .SYNOPSIS Tests if a new certificate should be requested. .PARAMETER Subject Provide the text string to use as the subject of the certificate. .PARAMETER CAServerFQDN The FQDN of the Active Directory Certificate Authority on the local area network. .PARAMETER CARootName The name of the certificate authority, by default this will be in format domain-servername-ca. .PARAMETER KeyLength The bit length of the encryption key to be used. .PARAMETER Exportable The option to allow the certificate to be exportable, by default it will be true. .PARAMETER ProviderName The selection of provider for the type of encryption to be used. .PARAMETER OID The Object Identifier that is used to name the object. .PARAMETER KeyUsage The Keyusage is a restriction method that determines what a certificate can be used for. .PARAMETER CertificateTemplate The template used for the definiton of the certificate. .PARAMETER SubjectAltName The subject alternative name used to create the certificate. .PARAMETER Credential The `PSCredential` object containing the credentials that will be used to access the template in the Certificate Authority. .PARAMETER AutoRenew Determines if the resource will also renew a certificate within 7 days of expiration. .PARAMETER CAType The type of CA in use, Standalone/Enterprise. .PARAMETER CepURL The URL to the Certification Enrollment Policy Service. .PARAMETER CesURL The URL to the Certification Enrollment Service. .PARAMETER UseMachineContext Determines if the machine should be impersonated for a request. Used for templates like Domain Controller Authentication .PARAMETER FriendlyName Specifies a friendly name for the certificate. #> function Test-TargetResource { [CmdletBinding()] [OutputType([System.Boolean])] param ( [Parameter(Mandatory = $true)] [ValidateNotNullOrEmpty()] [System.String] $Subject, [Parameter()] [System.String] $CAServerFQDN, [Parameter()] [System.String] $CARootName, [Parameter()] [ValidateSet("1024", "2048", "4096", "8192")] [System.String] $KeyLength = '2048', [Parameter()] [System.Boolean] $Exportable = $true, [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $ProviderName = '"Microsoft RSA SChannel Cryptographic Provider"', [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $OID = '1.3.6.1.5.5.7.3.1', [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $KeyUsage = '0xa0', [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $CertificateTemplate = 'WebServer', [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $SubjectAltName, [Parameter()] [System.Management.Automation.PSCredential] $Credential, [Parameter()] [System.Boolean] $AutoRenew, [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $CAType = 'Enterprise', [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $CepURL, [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $CesURL, [Parameter()] [System.Boolean] $UseMachineContext, [Parameter()] [ValidateNotNullOrEmpty()] [System.String] $FriendlyName ) # The certificate authority, accessible on the local area network if ([string]::IsNullOrWhiteSpace($CAServerFQDN) -or [string]::IsNullOrWhiteSpace($CARootName)) { $caObject = Find-CertificateAuthority $CARootName = $caObject.CARootName $CAServerFQDN = $caObject.CAServerFQDN } $ca = "$CAServerFQDN\$CARootName" # If the Subject does not contain a full X500 path, construct just the CN if (($Subject.split('=').count) -eq 1) { $Subject = "CN=$Subject" } Write-Verbose -Message ( @( "$($MyInvocation.MyCommand): " $($LocalizedData.TestingCertReqStatusMessage -f $Subject, $ca) ) -join '' ) # Exception for standard template DomainControllerAuthentication $cert = Get-Childitem -Path Cert:\LocalMachine\My | Where-Object -FilterScript { $_.Subject -eq $Subject -and ` $_.Issuer.split(',')[0] -eq "CN=$CARootName" } if ($CertificateTemplate -eq 'DomainControllerAuthentication') { $cert = Get-Childitem -Path Cert:\LocalMachine\My | Where-Object -FilterScript { (Get-CertificateTemplateName -Certificate $PSItem) -eq $CertificateTemplate -and ` $_.Issuer.split(',')[0] -eq "CN=$CARootName" } } # If multiple certs have the same subject and were issued by the CA, return the newest $cert = $cert | Sort-Object -Property NotBefore -Descending | Select-Object -First 1 if ($cert) { Write-Verbose -Message ( @( "$($MyInvocation.MyCommand): " $($LocalizedData.CertificateExistsMessage -f $Subject, $ca, $cert.Thumbprint) ) -join '' ) if ($AutoRenew) { if ($Cert.NotAfter -le (Get-Date).AddDays(-30)) { # The certificate was found but it is expiring within 30 days or has expired Write-Verbose -Message ( @( "$($MyInvocation.MyCommand): " $($LocalizedData.ExpiringCertificateMessage -f $Subject, $ca, $cert.Thumbprint) ) -join '' ) return $false } # if } else { if ($cert.NotAfter -le (Get-Date)) { # The certificate has expired Write-Verbose -Message ( @( "$($MyInvocation.MyCommand): " $($LocalizedData.ExpiredCertificateMessage -f $Subject, $ca, $cert.Thumbprint) ) -join '' ) return $false } # if } # if if ($PSBoundParameters.ContainsKey('SubjectAltName')) { # Split the desired SANs into an array $sanList = $SubjectAltName.Split('&') $correctDNS = @() foreach ($san in $sanList) { if ($san -like 'dns*') { # This SAN is a DNS name $correctDNS += $san.split('=')[1] } } # Find out what SANs are on the current cert if ($cert.Extensions.Count -gt 0) { $currentSanList = ($cert.Extensions | Where-Object {$_.oid.FriendlyName -match 'Subject Alternative Name'}).Format(1).split("`n").TrimEnd() $currentDNS = @() foreach ($san in $currentSanList) { if ($san -like 'dns*') { # This SAN is a DNS name $currentDNS += $san.split('=')[1] } } # Do the cert's DNS SANs and the desired DNS SANs match? if (@(Compare-Object -ReferenceObject $currentDNS -DifferenceObject $correctDNS).Count -gt 0) { return $false } } else { # There are no SANs and there should be return $false } } if ($CertificateTemplate -ne (Get-CertificateTemplateName -Certificate $cert)) { Write-Verbose -Message ( @( "$($MyInvocation.MyCommand): " $($LocalizedData.CertTemplateMismatch -f $Subject, $ca, $cert.Thumbprint, (Get-CertificateTemplateName -Certificate $cert)) ) -join '' ) return $false } # if # Check the friendly name of the certificate matches if ($FriendlyName -ne $cert.FriendlyName) { Write-Verbose -Message ( @( "$($MyInvocation.MyCommand): " $($LocalizedData.CertFriendlyNameMismatch -f $Subject, $ca, $cert.Thumbprint, $cert.FriendlyName) ) -join '' ) return $false } # if # The certificate was found and is OK - so no change required. Write-Verbose -Message ( @( "$($MyInvocation.MyCommand): " $($LocalizedData.ValidCertificateExistsMessage -f $Subject, $ca, $cert.Thumbprint) ) -join '' ) return $true } # if # A valid certificate was not found Write-Verbose -Message ( @( "$($MyInvocation.MyCommand): " $($LocalizedData.NoValidCertificateMessage -f $Subject, $ca) ) -join '' ) return $false } # end function Test-TargetResource |