Development of Blowfish Encryption Scheme for Secure Data Storage in Public and Commercial Cloud Computing Environment

Abstract

Cloud computing is defined as the delivery of on- demand computing resources ranging from infrastructure, application to datacenter over the internet on a pay-per-use basis. Most cloud computing applications does not guarantee high level of security such as privacy, confidentiality and integrity of data because of third-party transition. This brings the development of Blowfish cloud encryption system that enables them to encrypt their data before storage in the cloud. Blowfish encryption scheme is a symmetric block cipher used to encrypt and decrypt data. Microsoft Azure cloud server was used to test the proposed encryption system. Users are able to encrypt their data and obtain a unique identification to help them retrieve encrypted data from the cloud storage facility as when needed.