RSA Encryption and Decryption System

Abstract

For communication in the wireless networking, transmission of data over network sometimes is not safe. In such case security of network is one of the essential aspect in computer networking. Cryptography is antechnique of transforming an plaindata into encrypted one, and then retransform that encrypted data back to its plain (original) form. In this we authenticate the sender to whom you want to send that data file. There are two different techniques of cryptography, symmetric key cryptography (called public-key cryptography) algorithms and asymmetric key cryptography (called public-key cryptography) algorithms. There are also various algorithms for encrypted data using either public or private key or both. This paper describes RSA algorithm which first convert our data into other form and then encrypt it using RSA public key encryption at sender side & at receiver side, first it authenticate the receiver then decrypt the data/ file and convert into original form.