The Comparative Study of Spartan-3A and Virtex-5 Based Realization of S-Boxes
Muhammad Haris Rais, Mohammed H. Al Mijalli, Saudi Arabia · 2013
This letter presents the Spartan-3A XC3S50A (package: ff256, speed grade: -5), XC3S200A (package: fg320, speed grade: -5), XC3S400A (package: fg400, speed grade: -5) and XC3S700A (package: fg484, speed grade: -5) FPGA devices and Virtex-5 XC5VLX50 (package: ff676, speed grade: -1), XC5VLX50T (package: ff665, speed grade: -1), XC5VLX110 (package: ff676, speed grade: -1) and XC5VLX110T (package: ff1136, speed grade: -1) FPGA devices based hardware realization of Galois Field GF (2 ) S-Box, Gray S-Box and Skipjack S-Box. 8 The implantation is done using Very High speed integrated circuit Hardware Description Language (VHDL). The Galois Field GF (2 ), Gray and Skipjack S-Boxes use almost similar Spartan-3A FPGA resources such as four 8 occupied slices, one BRAMs and runs at frequency of 375.799 MHz as compared to Virtex-5 runs at a frequency of 371.609 MHz.