#### Parse Certificate Chain ####
function ParsCertificateChain($path)
{
	$readFile = [System.IO.File]::OpenText($path)
	$certificateHash = New-Object System.Collections.ArrayList
	$BEGIN = "-----BEGIN CERTIFICATE-----"
	$END   = "-----END CERTIFICATE-----"
	[bool]$read = $false
	While(!$readFile.EndOfStream)
	{  
		$line = $readFile.ReadLine()
		IF($line -match $BEGIN)
		{
		$read = $true
		$hash = $null
		While($read)
		{
			$line = $readFile.ReadLine()
			IF($line -notmatch $END)
			{
			$hash = $hash + $line
			}
			ELSE 
			{
			$read = $false
			$certificateHash.Add($hash)
			}
		}
		}
	}
	$readFile.Close()
	return $certificateHash
}

################# MAIN #################
$path = # Certificate chain path
$certificates = New-Object System.Collections.ArrayList
$certificates = ParsCertificateChain($path)
For ([int] $i = 3; $i -lt $certificates.Count; $i = $i + 1 ) 
{	
	IF($i -eq '3')
	{
		$isLeaf = 'true'
		$isRoot = 'false'
	}
	ELSEIF($i -eq $certificates.Count-1)
	{
		$isLeaf = 'false'
		$isRoot = 'true'
	}
	ELSE
	{
		$isLeaf = 'false'
		$isRoot = 'false'
	}
	$hostBasedSetupRef =  $wsmanConnectionObject.NewReference("SELECT * FROM IPS_HostBasedSetupService WHERE Name='Intel(r) AMT Host Based Setup Service'")
	$inputObject =  $hostBasedSetupRef.CreateMethodInput("AddNextCertInChain")
	$inputObject.SetProperty("NextCertificate", $certificates[$i])  
	$inputObject.SetProperty("IsLeafCertificate", $isLeaf)  
	$inputObject.SetProperty("IsRootCertificate", $isRoot)  
	$outputObject   = $hostBasedSetupRef.InvokeMethod($inputObject)
	$returnValue = $outputObject.GetProperty("ReturnValue")
}