A Comparative Study of Hardware-Based and Software-Based Secure Virtualization Technologies

With the development of cloud computing, its security problem gets more and more attention. This article comprehensively analyses many problems about cloud computing and virtualization security, elaborates the research status of virtualization security and puts forward the development direction in the future. This paper first describes cloud computing architecture, and then introduces the virtualization technology, focusing on virtualization security issues and research status, and takes Xen platform for example, introduces the Xen virtualization security issues, finally the future development was prospected.

Sustainable Green Cloud Computing: Principles and Practices offers a comprehensive and analytically grounded examination of cloud computing through the lens of sustainability, security, and modern software engineering. Addressing the growing environmental and operational challenges associated with large-scale digital infrastructure, this volume integrates green computing principles with cloud service design, virtualization technologies, and secure programming practices. It provides a structured framework for developing cloud systems that are efficient, scalable, environmentally responsible and resilient. The book begins with foundational concepts in cloud computing within a green computing environment, examining how SaaS, IaaS, and PaaS models contribute to optimized resource utilization and reduced carbon footprints. It then explores cloud service stacks and business models, including layered service architectures and financial perspectives that shape deployment strategies. Dedicated chapters analyze virtualization technologies, outlining their benefits, limitations, and implementation best practices. A detailed treatment of cloud security architecture addresses trusted computing, identity and access management, virtualization security, and autonomic protection mechanisms. The final section presents practical programming applications and software packages, including Java-based systems for data mining, plagiarism detection, and real-time communication.Balancing theoretical foundations with applied knowledge, this book serves as a valuable reference for students, researchers, educators, and industry professionals seeking sustainable and secure cloud computing solutions. Key Features - Balances Theory and Applications- Gives an overview of computing models and architectures- Includes notes on packages and programming tools- Provides References for advanced readers

In this paper, we analyze the research trend and problems of the existing virtualization technology and present the most applicable virtualization technology in order to apply the technology to the operation of novel reliable networks. By using the virtualization technology, there is advantage in that the utilization of resource becomes higher and maintenance cost goes down. While, from the security perspective, there exist advantage in using the virtualization, it also introduces new vulnerabilities due to the adoption. Thus it is necessary to analyze the problem and establish the strategy to solve it. Therefore we derive threat elements to the virtualized system, analyze and describe the virtualization security policy.

Virtual machine live migration technology, as an important support for cloud computing, has become a central issue in recent years. The virtual machines' runtime environment is migrated from the original physical server to another physical server, maintaining the virtual machines running at the same time. Therefore, it can make load balancing among servers and ensure the quality of service. However, virtual machine migration security issue cannot be ignored due to the immature development of it. This paper we analyze the security threats of the virtual machine migration, and compare the current proposed protection measures. While, these methods either rely on hardware, or lack adequate security and expansibility. In the end, we propose a security model of live virtual machine migration based on security policy transfer and encryption, named as SPLM (Security Protection of Live Migration) and analyze its security and reliability, which proves that SPLM is better than others. This paper can be useful for the researchers to work on this field. The security study of live virtual machine migration in this paper provides a certain reference for the research of virtualization security, and is of great significance.

As a fusion of multiple technologies, cloud computing virtualization technology brought new security challenges to cloud resource management and data privacy protection. This paper studied existing cloud computing the attack types from five aspects of cloud virtualization security technology, and made a cloud platform security analysis on the aspects of ensuring the availability of cloud computing services, confidentiality and reliability of data, and privacy protection. The attack instances, attack principles, attack effects, representative defense schemes, and limitations of existing research were also analyzed and compared to provide security for the healthy and sustainable development of cloud computing.