A cloud management platform allows users to run a multitenant atmosphere exploiting the resources from the virtual infrastructure. Although, clouds area unit is engineered with SaaS, PaaS and IaaS service layers. Infrastructure services area unit is the first and foremost typical non-public cloud services. For efficiency and high-performance in the cloud management platform, we propose the parallel virtualization in the cloud computing environment. Data centers are created which can be used by multiple users at the same time by apportioning capabilities as the need arises had made this possible. Elasticity can be effectively achieved via parallel virtualization in IaaS to community cloud.

A Distributed Cloud Storage Provider (DCSP) is used for managing the client's data. However, the platform is vulnerable to security attacks, which results in huge losses of client data. The confidential data in an enterprise system may be illegally accessed through a remote interface provided by a heterogeneous-cloud and archives. The data may be lost or tampered with when it is stored in a storage pool outside the enterprise on a cloud. To achieve reliability, consistency, security, and confidentiality of user information Kerberos Protocol is used. The Kerberos protocol is designed to provide reliable authentication over open and insecure networks. The symmetric-key cryptography is maintained for transaction over the network. In this chapter, a cooperative Key-Distribution Center (KDC) scheme is proposed to support dynamic scalability on multiple storage servers. The results of the research work show that KDC provides effective security properties required by Kerberos protocol to mitigate the impact of various attacks in any cloud.

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