LBC-IoT: Lightweight Block Cipher for IoT Constraint Devices

With the new era of Internet Things (IoT) technology, many devices with limited resources are utilized. Those susceptible to a significant number malware and other risks emerging rapidly. One most appropriate methods for securing those IoT applications is cryptographic algorithms, as cryptography masks information by eliminating risk collecting any meaningful patterns. This ensures that all data communications private, accurate, authenticated, authorized, or non-repudiated. Since conventional algorithms have been developed specifically resources; however, it turns out such not ideal restricted their current configuration. Therefore, lightweight block ciphers gaining popularity meet requirements low-power constrained devices. A ultra-lightweight secret-key block-enciphering algorithm named “LBC-IoT” proposed in this paper. The length 32-bit supporting key lengths 80-bit, mainly based on Feistel structure. Energy-efficient features include use simple functions (shift, XOR) small rigid substitution boxes (4-bit-S-boxes). Besides, immune different types attacks linear, differential, side-channel well flexible terms implementation. Moreover, LBC-IoT achieves reasonable performance both hardware software compared recent algorithms. LBC-IoT’s implementation results very promising (smallest ever area “548” GE) competitive today’s leading ciphers. also ideally suited ultra-restricted RFID tags.