XF 2 encrypted links

Hi guys im after a resorce custom made for my forum.
I have some files on a ftp storage box that i would like to share on my forum but i require a way to encrypted the download link. so it doesnt show the ip/use/password.

ideally it would just show the file name and they click and it downloads.

i do most my posting using a template so ideally i would like to set the server details in the admin CP and use tags for instance [DL]filename[/DL]

is anyone able to help with this development

thanks in advance