Abstract
In this project, the objective is to design, build and test door lock, as security system has become a very important technology in our lives and worldwide. It is always necessary for people to put their personal important stuff/information in a place/system with high and reliable security. For high assurance, systems will logically have security requirement, availability, reliability and robustness requirements, so this kind of proper security controls is used to prevent computer hacker attacks or stealing. A 12V DC solenoid acts as the lock and performs its operation based on the signal received from FPGA, which is an integrated circuit with high speed interfaces and serial communication protocals. The lock comes with a fixed password and could be locked immediately or a certain amount of time after unlocked. Also, when it is left open for a specified amount of time, the alarm will sound to remind people of closing it after leaving. The alarm will go off itself as soon as the door is closed.