Design and Implementation of a Smart Digital Door Lock Based on BBS PRNG

Security in smart home considered as a major concern nowdays.In this proposal work, a new implementation of BBS PRNG (Blum BlumShub Pseudorandom Number Generator) to generate new PIN (Personal Identification Number) for digital door lock access. The normal PIN generated from combination of numeric keypad, and this PIN mostly consist of 4-digit and may one of most popular password such as 1234 which easy to break. The proposal work is to design prototype of electronic circuit for digital door lock using ATmega32 to control the actuator of door, also, a bluetooth module wired to microcontroller to receive PIN from smartphone to lock/unlock the door. The PIN will be generated using BBS algorithm in Android (smartphone) environment and transmitted to digital door lock controller via Bluetooth. The proposed design can enhance the security of control digital door lock by using the PIN generated by BBS PRNG, and performance evaluation of attack both PINs, normal and BBS generated, by using Brute Force attack tools which comes with the BBS is harder and takes years to attack, where normal PIN takes minutes to attack.