Letter randomizing on-screen keyboard with low contrast slider for X11, used for entering in sensitive passwords. Requires perl-tk package and cpan's X11::GUITest.
Security is more than just a program, it's a process.
A Linux kernel module that simulates key presses without pressing any keys, in this module i press the left key whenever the user presses any key, so that he writes from right to left instead of writing from left to right.