An Efficient Subkeys Generation Algorithm For Encryption Of Cloud Data

Abstract

With the emergence of Internet Cloud Computing and its popularity gain in due course of time, cloud users are heavily relying on cloud storage to store their personal and critical data. In order to secure this cloud data, various encryption-decryption algorithms like DES, 3DES, CAST128, RC 5, IDEA, Blowfish, AES-128, AES-192, AES-256, RSA, etc. have been used that require keys especially symmetric key and sub keys. This work proposes an efficient algorithm for multiple sub keys generation that provides higher degree of security to cloud data by ensuring the complete redressal of weak keys as well.