Cryptographic Process in Cloud Based System

Abstract

Cloud computing technology becomes most popular in modern technology environment. Users store their data on third-party storage, cloud storage provider. In this case, security concerns arise to protect their stored data. So, secure cloud architecture was proposed and used. In this environment, key manager includes and produces both private and public keys to encrypt and decrypt the user data files. If someone gets the keys in some way from the key manager, the data file can easily be opened and changed. So, I proposed client-side encryption system. This system generates all encryption and decryption keys at the client side. The key owner generates both key pairs instead of generating at key manger location. This system currently uses Rivest-Shamir-Adleman (RSA) public key cryptosystem to generate keys and to perform cryptographic processes.