Efficient Modular Exponentiation Architectures for RSA Algorithm

-Cryptosystems are used to send confidential messages in secure manner. The most important and efficient type of cryptosystem is RSA. RSA is used in various sectors such as Bank security and Internet protection. One of the various steps involved in RSA is Modular exponentiation, which is used in both Encryption and Decryption. It takes high memory and computation time of algorithm. In order to reduce the computation time of algorithm, the Modular exponentiation complexity is reduced. In this paper, we explain efficient novel Modular exponentiation. This is done by FPGA implementation using ZedBoard and comparing them with the previous methods. Keywords--RSA cryptosystems; Modular Exponentiation; ASIC and FPGA implementation.