In this paper, an approach of temporal certification system that can be easily added on current
character-based certification system is newly introduced.
This technique enhances the security of the password certification process by exploiting temporal
information for each character's stroke timing, and using them as another feature of certification
information, on top of character comparison process. There are three different temporal conditions:
maximum, minimum and no-option. The maximum condition along with a time number (usually 0.2 second
or less) means that the next key input should be punched within the time limit, while the minimum
condition means the next key stroke should be typed after the time lapse specified. With no-option
condition chosen, user can punch the password without any timing constraints.
Prototype was developed and tested with four number password case. In comparison with 10⁴cases, this
new approach increases the cases more than 10 digits, enhancing the security of the certification process.
One big advantage of this new approach is that user can update his/her password only with different
timing constraints, still keeping the same characters, that will enhance the security system management
efficiency in a very simple way. Figures and pictures along with process flow are included for the validity
of the idea.