function Get-CertificateExportName {
<#
.SYNOPSIS
    Fetches a Certificate's Export Name.
#>
    [CmdletBinding()]
    param(
        [Parameter(Mandatory = $true)]
        $Cert
    )

    $canonicalName = ($cert.Subject.Trim().Split(",") | Where-Object {$_ -match "CN="} | Select-Object -First 1 ) -replace "CN=", ""
    $invalidFileNameChars = [IO.Path]::GetInvalidFileNameChars() -join ''
    $validFileNameCN = ($canonicalName -replace ("[{0}]" -f [RegEx]::Escape($invalidFileNameChars)))

    $certName = if ($validFileNameCN) { $validFileNameCN } else { $cert.Thumbprint }

    return $certName.Trim()
}