General Purpose Time-differential Electronic/Mechanical Password Locking/Security System Equipped with Internal Hacking Protection Program using Time-interval Checking Device between Password Input Key Strokes

摘要

PURPOSE: A password security system for preventing a conventional computer from hacking and a mechanical security device using an input time gap between each character information of a password is provided to simply maximize the security of the security device by examining the input time gap between each character information of the password as well as the inputted characters. CONSTITUTION: The password security system comprises a comparator(14) comparing the sequentially inputted password with the stored password, a permanent password storage(12) capable of changing and storing the password, a memory selector(23) transferring one output selected from the permanent password storage and a temporary storage(21), a time generator(15) acquiring the time information between the characters of the password, an oscillator(16) generating an operation clock of the system, a memory input selector(22) alternatively mixing the inputted character and the time information, an input signal storage(13) generating a signal analysis and the input data from a key pad input(18), an LCD character generator(19), a key signal generator(20), and a security system function controller(11).