Impact of VM based side channel attack on depsky multi cloud model

Abstract

The innovative model of cloud computing has been under keen observation by many organizational sectors like healthcare, financial, Telco’s, private and government, realizing the benefits that can be achieved in terms of productivity, low cost, data accessibility and on demand services to its users. Like other services provided by cloud service provider, storage services has lead the organizations to store their critical records on the infrastructure provided as per their needs. DEPSKY a “multicloud deployment model” is a system, which ensures confidentiality, integrity, efficiency and availability of data by replicating them on different clouds that form an “inter-cloud” or “cloud-of-clouds”. In this research we focus on one of the attack in multi cloud deployment model, that is VM based Side Channel Attack in which a rouge/malevolent VM occupies the read/write operations most of the time thus limiting the legitimate VM’s to perform read/write operations for a very minimal amount of time. In VM based side channel attack, the aim of the attacker is to extract most of the data on the rouge VM by occupying the read/write operations for maximum time. In this attack, the goal of the attacker is to maximize the time of read/write operations on rouge VM and minimizing the amount of time for legitimate VM’s to perform read/write operations. We try to analyze the impact on performance of DEPSKY multi cloud model by the presence of VM based Side Channel Attack.