Encryption as a Service Based on Parallelizing Fully Homomorphic Encryption Implementation on Openstack Cloud Computing

摘要

Cloud computing nowadays is a fundamental change happening in the area of Information Technology. It plays a crucial role in terms of data storing and reducing the overall cost to entrepreneurs. However, data security continues to be one of the top concerns for cloud computing. To provide the secure data storage and retrieval, many techniques have been proposed but the majority of them face some drawbacks which diminish the functionality of Cloud Computing. The biggest and most important benefit that gains private cloud, where an organization sets up an internal cloud infrastructure, is security advantages which can lead to lower costs and improved performance. The most common open source of cloud frameworks that allows the customers to build their own private IaaS (Infrastructure as a Service) cloud are OpenStack, Eucalyptus and OpenNebula. This paper provides a comparative study of these three cloud middlewares. This work scrutinizes the Fully Homomorphic encryption which allows performing operations on encrypted data without compromising the encryption. The main aim of this paper is to propose a new architecture to secure cloud computing, prevent security risks and improve the performance and the time of data processing. This framework is based on Cryptography as a Service (CaaS) including the private cloud OpenStack platform.