Developing an Encryption Method with a Comparative Algorithmic Approach of Lightweight Block Ciphers for Improved Security Performance in IoT Devices: PRESOPT

Background: This study compares encryption-decryption algorithms, and a new framework called PRESOPT, which is improved upon the Present algorithm, a lightweight block cipher. This article examines the security and performance of DES, ROT-13, and the current framework for the PRESOPT implementation outcome. Objectives: PRESOPT is developed to enhance and surpass the safety operation of prevailing algorithms with complementary capabilities to make IoT devices more resilient to cyberattacks. The PRESOPT algorithm is designed to optimize both time and security. Method: The algorithm uses DES with a 64-bit block size, a key length of 56 bits, and 16 operation rounds. On the other hand, the existing method uses a set of procedures utilizing Near Feel Communication (NFC) based pairing that works with Internet of Things devices, whereas ROT-13 is an improvement on the Ceaser cipher. Python is used to implement the simulations for the suggested study, and the outcomes are successfully procured. Findings : The output shows Elapsed Time 0.00281709 seconds that it handles block ciphers efficiently. Novelty: The proposed PRESOPT algorithm improves the present algorithm's security performance and gives an add-on capability to secure the Internet of Things from cyberattacks. Keywords: IoT (Internet of Things), ROT-13 (Rotation-13), Cipher, Encryption, Decryption