Authentication using Audio Key Phrase Integrated with Random Number Generated Keypad

Most organizations have a tendency to focus on preventing threats from external attacks and almost overlooked on internal attacks. Biometrics, access control cards, keypad controls and door-locks are common types of physical security countermeasures. Failure of such design may endanger and post serious damage to major economics infrastructure, personal privacy and facilitate crime. Strong physical security applies the principle of Defense in Depth where multiple layers of protection are used in strengthening the security. This paper proposed an alternative security system design which uses audio as first layer of authentication to identify key-phrases generated randomly by the system with the integration of Random Number Generated (RNG) keypad as the second layer of authentication. Furthermore this system has the ability to resists man in the middle attack, and insider attacks because the system is connected in isolated and separated network, uses key-phrases identified from random audio and use software based keypad, with randomize number position. It is hoped that by having this system, common physical security countermeasure weaknesses can be minimized.