Simulation and Analysis of Modified RSA Cryptographic Algorithm using Five Prime Numbers

Abstract

Today, internet is being widely used by everyone with different ages of people. Every day we share our valuable information such as credit card, bank account details over network. So security is an important parameter to protect our secret information from unauthorized access. Security in network is based on cryptography. Cryptography is a phenomenon to hide original information to unreadable form so that they can be read only by the intended receiver. The most common public key cryptographic algorithm is RSA used for encryption and decryption. Strong encryption algorithms and optimized key management techniques always help in achieving confidentiality, authentication and integrity of data and reduce the overheads of the system. Keeping in view the importance of dynamic keys for secure data transmission, the paper is focused on the use of dynamic keys for data security.This includes the architectural design and enhanced form of RSA algorithm through the use of five prime numbers in order to make a modulus n which is not easily decomposable by intruders. Simulations of results have been achieved by using MATLAB12a.