A novel approach to enhance the security dimension of RSA algorithm using bijective function

The essence of data security has exponentially increased in last few decades in order to protect the privacy and secrecy of confidential information of different organizations, intelligence agencies and defense departments. The intruders are continuously trying to breach security systems to reveal the transmitted data over the network. The RSA algorithm has applications in many confidential fields such as credit card information. So the security level of RSA must be high and must be difficult to breach. In order to enhance the security dimension of RSA algorithm we have proposed a novel and unique approach to modify this algorithm using two-variable bijective function. This bijective function maps the ASCII derived from the plaintext or any integer values into another set of definite integer values which can be recovered by applying its inverse formula during decryption. Our proposed methodology of modification of RSA scheme shall eliminate possible security threats against this algorithm and advance a step further towards secure communication system.