Improved Mask Protected DES using RSA Algorithm

¹ Research Scholar, Sathyabama University, Chennai - 600119
² Manager Research, NEC Mobile networks Excellence Centre, Chennai.

asha_26_2001@yahoo.com
sivabalan.armugam@necindia.in

Abstract

The data encryption standard is a pioneering and farsighted standard which helped to set a new paradigm for encryption standards. But now DES is considered to be insecure for some application. Asymmetric mask protected DES is an advanced encryption method for effectively protecting the advanced DES. There are still probabilities to improve its security. This paper propose a method, which introduce a RSA key generation scheme in mask protected DES instead of plain key, which result in enhancement in the security of present asymmetric mask protected DES. We further propose a Vedic mathematical method of RSA implementation which reduce the complexity of computation in RSA block thereby resulting in reduced delay (four times)that improves the performance of overall system. The software implementation was performed using Xilinx 13.2 and Model-Sim was used for the simulation environment.