On DRSA Public Key Cryptosystem

Sahadeo Padhye

School of Studies in Mathematics, Pandit Ravishankar Shukla University, India

Abstract: The standard RSA cryptosystem is not semantically secure. Pointcheviel proposed a variant of RSA cryptosystem with the property of semantic security by introducing a new problem known as DRSA problem. He called it DRSA scheme. In this paper, we underlined a shortcoming of that scheme and proposed an alternative DRSA public key cryptosystem.

Keywords: Public key cryptosystem, RSA, DRSA, semantically secure.