data HashAlg = SHA256
             | SHA384
             deriving Show

data OU = OUApplicationId Int64
        | OUHashAlg       HashAlg
        | OUSerialNumbers [Int32]
        | OUAllowsExec    Bool

-- "01 xxxxxxxxxxxxxxxx APPID"        <-> OUApplicationId Int64
-- "02 01 SHA256"                     <-> OUHashAlg SHA256
-- "02 01 SHA384"                     <-> OUHashAlg SHA384
-- "03 xxxxxxxx yyyyyyyy zzzzzzzz SN" <-> OUSerialNumbers [Int32]
-- "04 01 EXEC"                       <-> OUAllowsExec Bool