llSay() from a HUD

I am using llSay() from a hud to communicate with a worn object. I want to filter the chat in the object to chat from the owner, but the hud does not send the owner's key. It sends a key but not the key for owner of the hud.

So can anyone tell me how to filter the chat coming from a HUD and being received by a worn object?

Don't use the key because it will change everytime you login or teleport (or attach?)

Filter the message using the HUD object name, use a really strange number for the channel and maybe add some security codes to the message itself so that the attachment can verify the sender.

The simplest way is to filter for name as already mentioned. Then, assuming you want only the owner's commands to work and an if statement in your listener for:

if(llGetOwnerKey(id) == llGetOwner() )

so you can check the owner of the HUD is the same as the owner of the listening object. Obviously the llGetOwner() bit can be tidied into something less heavy.

Thanks for you help! It is working now.