Customize Locking

[the3rd]

I'm looking for a program that will lock my whole device each time i soft off and then turn back on with the power button. I know about setting the timer to 0 however, it is annoying to do that because then it locks the device after less than a minute of usage when I just want it to lock when I hit the power button. I would like it to come back asking for a password prompt if possible. Any help would be greatly appreciated.