A New Design to Improve the Security Aspects of RSA Cryptosystem

Abstract

Due to the wide use of the RSA cryptosystem, is it critical to ensure a high level of security for the RSA, in this paper we introduce a new design to improve the security of the RSA cryptosystem, it provide the use of randomized parameters in the encryption process to make RSA many attacks described in literature, this improvement will make the RSA semantically secure, this means that that an attacker cannot distinguish two encryptions from each other even if the attacker knows (or has chosen) the corresponding plaintexts. This paper also briefly discuss some other attacks on the RSA and the suitable choice of RSA parameter to avoid attacks, also an important issue for the RSA implementation is how to speed up the RSA encryption and decryption process.