SPISE: A tiny, cost effective, speedy block cipher for low resourced devices

Abstract

The Internet of Things has come up as a blessing in this fast paced technologically advanced world where it finds huge role in everyday life of people in the form of various sensors embedded in various systems which are connected with the Internet. Transmission and reception of data in digitized form is done by the IoT devices after collection of varied forms of data from various sources. In present times of IoT technology data safety is a blooming concern that hampers the confidentiality of valuable data greatly. A novel lightweight encryption strategy is devised by keeping the concern of data security by the name of SPISE which is aimed for general computing and IoT devices. SPISE enjoys both the architectural benefits of substitution permutation network and that of General Feistel structure to ensure better security. The new crafted method has achieved very low count of equivalent gates as low as 728 GE and is exceedingly swift with very low computational time of 1.364 ns with ultra-low power consumption of 32.16 µW when tested in Cadence Genus using 65 nm process technology and when synthesized on XC7VX330T Virtex 7 FPGA board in Xilinx ISE 14.7.