Restricting access to macros

I have a large workbook which is mostly protected so that users cannot change it. I have also disabled all of the save/exit options to keep them in my control.
As a result I have had to create a number of small macros which allow me to unprotect everything/save the workbook etc. The problem is that these macros are visible to user via the Developer tab, so they could run them and access the sheets.
I want to put a password on these macros, so that if anyone tries to run them, they need to enter it. If I create a simple userform asking for a password, is it possible to mask the text?
Or is there a better way to restrict access to macros?

Thanks