• M. Bhagya Lakshmi
• Dr. P. Krishna Murthy

The Advanced Encryption Standard (AES) algorithm has become the default choice for various security services in copious applications. Internet of things (IoT), internetworking of smart devices, embedded with sensors, software, electronics and network connectivity that enables to communicate with each other to exchange and collect data through an uncertain wireless medium. Recently IoT devices are dominating the world by providing it's versatile functionality and real-time data communication. Apart from versatile functionality of IoT devices, they are very low battery powered, small and sophisticated, and experience lots of challenges due to unsafe communication medium. But due to recent emerge of IoT devices, the main concern are shifting to moderate security and less energy consumption rate. In existing Modification for the AES Algorithm (MAES) a new 1-dimensional Substitution Box is implemented by formulating a novel equation for constructing a square matrix in affine transformation phase of MAES where the area hardware is more. Affine transformation has scaling, translation and rotation while receiving data from satellites these operations are performed. In proposed method the mix column is replaced by random permutation. In this area is considered based on look up tales. The random permutation stage performs the XoR operation between the Linear-Feedback Shift Register (LFSR) and state matrix from shift rows. The main concern is shifting to moderate security and less area consumption. The proposed method has mainly four steps. This will improve the security level and also the area and delay will be reduced when compare to existing method.

Advanced Encryption Standard, IoT, Linear-Feedback Shift Register, MAES

"MODIFIED ADVANCED ENCRYPTION STANDARD FOR MORE SECURE COMMUNICATION", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 11, page no.226-233, November-2020, Available :http://www.jetir.org/papers/JETIR2011166.pdf

"MODIFIED ADVANCED ENCRYPTION STANDARD FOR MORE SECURE COMMUNICATION", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 11, page no. pp226-233, November-2020, Available at : http://www.jetir.org/papers/JETIR2011166.pdf