Simple Lightweight Cryptographic Algorithm to Secure Imbedded IoT Devices

The internet of things (IoT) revolution has been sparked by the exponential increase in connected devices caused recent advances wireless technology. These embedded gather, analyze, and send vast data via network. Data transmission security is a primary problem IoT networks. Several lightweight encryption/decryption algorithms have developed for such resource-constraint devices. One most effective fast encryption applications Tiny Encryption Algorithm (TEA). TEA few lines source codes to implement based on Feistel structure provide cryptographic primitive confusion diffusion features order hide statistical aspects plaintext. However, it vulnerable assaults using equivalent related key attacks. This study suggested modifying employing new proposed generating keys function two Linear Feedback Shift Registers (LFSRs) as combination address flaw utilizing different each round function. sensitivity, Avalanche effect, completeness test were used evaluate its performance. sensitivity modified outperforms original 50.18 % 44.88 %. avalanche effect 52.57 47.69 %, 51.75 48.36 Experimental results indicates that, performance better than TEA.