USB port locked by a code

Avg Bid (USD)
Project Budget (USD)
$30 - $5000

Project Description:
I want to secure the data on my Android tablet by locking the USB Port with a password set by me,

Very light UI: just a window that appears when i insert a usb device (3g usb modem, usb mouse, usb drive...everything) into the usb ports of the tablet.

This mask ask for a code: i enter the code clicking on the virtual keyboard WITH A USB MOUSE (no touch screen in the tablet i use), and the usb port is unblocked.

If i don't enter any code, or I enter a wrong code, I cannot do nothing, and after x seconds the window disappears.

Skills required:
Android, Mobile Phone
About the employer:
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