function Get-MachineKeyValidationKey {
    <#
.SYNOPSIS
    Gets the machine key validation key
#>

    if ($machineKeyValidationKey -ne "C153B7375BE81D1B1F01D9AB2F8ED31E4CECD7A7EA226DF91EF737E0C3E5A081D07B1883BA80B866EF666B837D839A0739E22506F044148CF8F35854A3CD0472") {
        return $machineKeyValidationKey
    }

    $machineKeyString = ("{0}ImsailingawaysetanopencourseforthevirginseaIvegottobefreefreetofacethelifethatsaheadofmeOnboardImthecaptainsoclimbaboardWellsearchfortomorrowoneveryshoreAndIlltryohLordIlltrytocarryon" -f [Environment]::GetEnvironmentVariable("POD", "Machine")).Substring(0, 128)
    $result = Get-Sha256Hash -value $machineKeyString

    do {
        $result += Get-Sha256Hash -value $machineKeyString
    }
    while ($result.Length -lt 128)

    return $result.SubString(0, 128)
}