Information handling system secure keyboard health state tracking for enhanced reuse and recycling

Abstract

A key input counter stored in non-transitory memory coupled to a keyboard membrane and executing on a processing resource of the keyboard membrane stores a number of key presses detected at the membrane to track health of the keyboard for reuse. Key input values are queued in batches of sufficient size so that communication to non-transitory memory hides inputs made by an end user, such as a password input. In some embodiments, the batches are copied to non-transient memory when a sufficient multiple of a password exists to mask the password value, or when a sufficient amount of time passes to break up any end user key input sequences. In one embodiment, key values are tracked for less than all the keys to prevent malicious reading of key inputs while still tracking particular values for end of life numbers of key inputs.