Security Implementation of the Internet of Things Using the Advanced Encryption Standard (AES) Algorithm

Technology is currently needed to facilitate human activities in order to improve efficiency, productivity, and human security itself. One of them is in technology to open and lock doors. In this study we will discuss the study of electronic key systems using codes or passwords as the key. The device used for this implementation is a microcontroller device that is installed on the door as the recipient of the control. Users communicate with microcontroller devices using cellular phones through Internet communication media. But communication over the Internet is not yet supported by strong security. Therefore in this study cryptography was made to complement the security aspects of electronic key codes by applying the Advanced Encryption Standard (AES) with a 256-bit key length. The results obtained from this study are that speed produces encryption and description of the description about 1.24 seconds and avoids sniffing and brute force.