FPGA implementation novel lightweight MBRISI cipher

The advancement Internet of things has led to an increasing exchange of information. Privacy and security has become a major concern. In this emerging ubiquitous computing world, Lightweight cryptographic algorithms are tailor made to secure the information in low resource devices for the Internet of Things (IoT) applications. In this paper an area efficient, high performance lightweight cipher, MBRISI cipher is proposed. The cipher is a combination of BRIGHT family of ciphers comprises of Addition-Modulo, Rotation and EX-OR (ARX) operations and the modification of SIMON cipher and also a novel lightweight key generation algorithm is used. The proposed cipher is better than the state of art existing lightweight ciphers and can be extended to support different block sizes and key sizes for the low resource environments like the IoT. The proposed MBRISI cipher encrypts a 32-bit plaintext employing a 64-bit key is implemented and then analyzed. The cipher is implemented in MATLAB tool (for software implementation) and is analyzed for correlation coefficient, entropy and histogram, avalanche criterion and Key-sensitivity. The Verilog code is written and simulated using Xilinx-Vivado tool and synthesized using FPGA’s Artix-7 and Basys-3.