Synthesis and Analysis of 64-Bit Blowfish Algorithm Using VHDL

Data security has become the major issue now in these days, especially for the use of internet. So, to protect the IP-based data, we must have to use strong cryptographic techniques. Blowfish cryptosystem is one of the strong and fast algorithms used for cryptography. This paper presents the implementation of Blowfish algorithm using VHDL. The device Virtex 4 is used with Xilinx ISE 14.1. The device utilization is improved by 1% and delay is reduced by 2ns in this work.