Abstract

Security is an essential feature of Information Communication Technology (ICT). Information has to be encrypted at the transmitter side to maintain secrecy and decrypted at the receiver side to retrieve the original information for secure data transmission over insecure computer data communication networks. This paper analyzes the performance metrics of blowfish algorithm with and without Wave Dynamic Differential Logic (WDDL) style to incorporate security against differential power analysis. It compares Encryption Time (Et), Decryption Time (Dt) and Total Time (Tt) of Blowfish, Modified Blowfish with and without WDDL logic for secure Integrated Circuits (SIC) [7, 8]. Modified Blowfish with and without WDDL logic yielded good results compared to Blowfish with and without WDDL logic implementation . This paper is implemented using Xilinx webpack9.2i with Verilog Hardware Description language (HDL).