Privacy Preservation and Secured Data Storage in Cloud Computing

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Author :
Publisher : IGI Global
ISBN 13 :
Total Pages : 535 pages
Book Rating : 4.3/5 (693 download)

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Book Synopsis Privacy Preservation and Secured Data Storage in Cloud Computing by : D., Lakshmi

Download or read book Privacy Preservation and Secured Data Storage in Cloud Computing written by D., Lakshmi and published by IGI Global. This book was released on 2023-10-25 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: As cloud services become increasingly popular, safeguarding sensitive data has become paramount. Privacy Preservation and Secured Data Storage in Cloud Computing is a comprehensive book that addresses the critical concerns surrounding privacy and security in the realm of cloud computing. Beginning with an introduction to cloud computing and its underlying technologies, the book explores various models of cloud service delivery. It then delves into the challenges and risks associated with storing and processing data in the cloud, including data breaches, insider threats, and third-party access. The book thoroughly examines techniques and tools to enhance privacy and security in the cloud, covering encryption, access control, data anonymization, and other measures to mitigate risks. Additionally, it explores emerging trends and opportunities in cloud security, such as blockchain-based solutions, homomorphic encryption, and other cutting-edge technologies poised to transform data privacy and security. This invaluable resource offers practical advice and in-depth analysis for cloud service providers, IT professionals, researchers, and students seeking to understand best practices for securing data in the cloud.

Security for Cloud Storage Systems

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Author :
Publisher : Springer Science & Business Media
ISBN 13 : 1461478731
Total Pages : 83 pages
Book Rating : 4.4/5 (614 download)

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Book Synopsis Security for Cloud Storage Systems by : Kan Yang

Download or read book Security for Cloud Storage Systems written by Kan Yang and published by Springer Science & Business Media. This book was released on 2013-07-01 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cloud storage is an important service of cloud computing, which offers service for data owners to host their data in the cloud. This new paradigm of data hosting and data access services introduces two major security concerns. The first is the protection of data integrity. Data owners may not fully trust the cloud server and worry that data stored in the cloud could be corrupted or even removed. The second is data access control. Data owners may worry that some dishonest servers provide data access to users that are not permitted for profit gain and thus they can no longer rely on the servers for access control. To protect the data integrity in the cloud, an efficient and secure dynamic auditing protocol is introduced, which can support dynamic auditing and batch auditing. To ensure the data security in the cloud, two efficient and secure data access control schemes are introduced in this brief: ABAC for Single-authority Systems and DAC-MACS for Multi-authority Systems. While Ciphertext-Policy Attribute-based Encryption (CP-ABE) is a promising technique for access control of encrypted data, the existing schemes cannot be directly applied to data access control for cloud storage systems because of the attribute revocation problem. To solve the attribute revocation problem, new Revocable CP-ABE methods are proposed in both ABAC and DAC-MACS.

Secure Cloud Computing

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Publisher : Springer Science & Business Media
ISBN 13 : 1461492785
Total Pages : 343 pages
Book Rating : 4.4/5 (614 download)

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Book Synopsis Secure Cloud Computing by : Sushil Jajodia

Download or read book Secure Cloud Computing written by Sushil Jajodia and published by Springer Science & Business Media. This book was released on 2014-01-23 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a range of cloud computing security challenges and promising solution paths. The first two chapters focus on practical considerations of cloud computing. In Chapter 1, Chandramouli, Iorga, and Chokani describe the evolution of cloud computing and the current state of practice, followed by the challenges of cryptographic key management in the cloud. In Chapter 2, Chen and Sion present a dollar cost model of cloud computing and explore the economic viability of cloud computing with and without security mechanisms involving cryptographic mechanisms. The next two chapters address security issues of the cloud infrastructure. In Chapter 3, Szefer and Lee describe a hardware-enhanced security architecture that protects the confidentiality and integrity of a virtual machine’s memory from an untrusted or malicious hypervisor. In Chapter 4, Tsugawa et al. discuss the security issues introduced when Software-Defined Networking (SDN) is deployed within and across clouds. Chapters 5-9 focus on the protection of data stored in the cloud. In Chapter 5, Wang et al. present two storage isolation schemes that enable cloud users with high security requirements to verify that their disk storage is isolated from some or all other users, without any cooperation from cloud service providers. In Chapter 6, De Capitani di Vimercati, Foresti, and Samarati describe emerging approaches for protecting data stored externally and for enforcing fine-grained and selective accesses on them, and illustrate how the combination of these approaches can introduce new privacy risks. In Chapter 7, Le, Kant, and Jajodia explore data access challenges in collaborative enterprise computing environments where multiple parties formulate their own authorization rules, and discuss the problems of rule consistency, enforcement, and dynamic updates. In Chapter 8, Smith et al. address key challenges to the practical realization of a system that supports query execution over remote encrypted data without exposing decryption keys or plaintext at the server. In Chapter 9, Sun et al. provide an overview of secure search techniques over encrypted data, and then elaborate on a scheme that can achieve privacy-preserving multi-keyword text search. The next three chapters focus on the secure deployment of computations to the cloud. In Chapter 10, Oktay el al. present a risk-based approach for workload partitioning in hybrid clouds that selectively outsources data and computation based on their level of sensitivity. The chapter also describes a vulnerability assessment framework for cloud computing environments. In Chapter 11, Albanese et al. present a solution for deploying a mission in the cloud while minimizing the mission’s exposure to known vulnerabilities, and a cost-effective approach to harden the computational resources selected to support the mission. In Chapter 12, Kontaxis et al. describe a system that generates computational decoys to introduce uncertainty and deceive adversaries as to which data and computation is legitimate. The last section of the book addresses issues related to security monitoring and system resilience. In Chapter 13, Zhou presents a secure, provenance-based capability that captures dependencies between system states, tracks state changes over time, and that answers attribution questions about the existence, or change, of a system’s state at a given time. In Chapter 14, Wu et al. present a monitoring capability for multicore architectures that runs monitoring threads concurrently with user or kernel code to constantly check for security violations. Finally, in Chapter 15, Hasan Cam describes how to manage the risk and resilience of cyber-physical systems by employing controllability and observability techniques for linear and non-linear systems.

Security, Privacy and Trust in Cloud Systems

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Publisher : Springer Science & Business Media
ISBN 13 : 3642385869
Total Pages : 459 pages
Book Rating : 4.6/5 (423 download)

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Book Synopsis Security, Privacy and Trust in Cloud Systems by : Surya Nepal

Download or read book Security, Privacy and Trust in Cloud Systems written by Surya Nepal and published by Springer Science & Business Media. This book was released on 2013-09-03 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book compiles technologies for enhancing and provisioning security, privacy and trust in cloud systems based on Quality of Service requirements. It is a timely contribution to a field that is gaining considerable research interest, momentum, and provides a comprehensive coverage of technologies related to cloud security, privacy and trust. In particular, the book includes - Cloud security fundamentals and related technologies to-date, with a comprehensive coverage of evolution, current landscape, and future roadmap. - A smooth organization with introductory, advanced and specialist content, i.e. from basics of security, privacy and trust in cloud systems, to advanced cartographic techniques, case studies covering both social and technological aspects, and advanced platforms. - Case studies written by professionals and/or industrial researchers. - Inclusion of a section on Cloud security and eGovernance tutorial that can be used for knowledge transfer and teaching purpose. - Identification of open research issues to help practitioners and researchers. The book is a timely topic for readers, including practicing engineers and academics, in the domains related to the engineering, science, and art of building networks and networked applications. Specifically, upon reading this book, audiences will perceive the following benefits: 1. Learn the state-of-the-art in research and development on cloud security, privacy and trust. 2. Obtain a future roadmap by learning open research issues. 3. Gather the background knowledge to tackle key problems, whose solutions will enhance the evolution of next-generation secure cloud systems.

Secure Data Science

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Author :
Publisher : CRC Press
ISBN 13 : 1000557510
Total Pages : 430 pages
Book Rating : 4.0/5 (5 download)

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Book Synopsis Secure Data Science by : Bhavani Thuraisingham

Download or read book Secure Data Science written by Bhavani Thuraisingham and published by CRC Press. This book was released on 2022-04-27 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Secure data science, which integrates cyber security and data science, is becoming one of the critical areas in both cyber security and data science. This is because the novel data science techniques being developed have applications in solving such cyber security problems as intrusion detection, malware analysis, and insider threat detection. However, the data science techniques being applied not only for cyber security but also for every application area—including healthcare, finance, manufacturing, and marketing—could be attacked by malware. Furthermore, due to the power of data science, it is now possible to infer highly private and sensitive information from public data, which could result in the violation of individual privacy. This is the first such book that provides a comprehensive overview of integrating both cyber security and data science and discusses both theory and practice in secure data science. After an overview of security and privacy for big data services as well as cloud computing, this book describes applications of data science for cyber security applications. It also discusses such applications of data science as malware analysis and insider threat detection. Then this book addresses trends in adversarial machine learning and provides solutions to the attacks on the data science techniques. In particular, it discusses some emerging trends in carrying out trustworthy analytics so that the analytics techniques can be secured against malicious attacks. Then it focuses on the privacy threats due to the collection of massive amounts of data and potential solutions. Following a discussion on the integration of services computing, including cloud-based services for secure data science, it looks at applications of secure data science to information sharing and social media. This book is a useful resource for researchers, software developers, educators, and managers who want to understand both the high level concepts and the technical details on the design and implementation of secure data science-based systems. It can also be used as a reference book for a graduate course in secure data science. Furthermore, this book provides numerous references that would be helpful for the reader to get more details about secure data science.

Security and Privacy Trends in Cloud Computing and Big Data

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Author :
Publisher : CRC Press
ISBN 13 : 1000583635
Total Pages : 233 pages
Book Rating : 4.0/5 (5 download)

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Book Synopsis Security and Privacy Trends in Cloud Computing and Big Data by : Muhammad Imran Tariq

Download or read book Security and Privacy Trends in Cloud Computing and Big Data written by Muhammad Imran Tariq and published by CRC Press. This book was released on 2022-06-07 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is essential for an organization to know before involving themselves in cloud computing and big data, what are the key security requirements for applications and data processing. Big data and cloud computing are integrated together in practice. Cloud computing offers massive storage, high computation power, and distributed capability to support processing of big data. In such an integrated environment the security and privacy concerns involved in both technologies become combined. This book discusses these security and privacy issues in detail and provides necessary insights into cloud computing and big data integration. It will be useful in enhancing the body of knowledge concerning innovative technologies offered by the research community in the area of cloud computing and big data. Readers can get a better understanding of the basics of cloud computing, big data, and security mitigation techniques to deal with current challenges as well as future research opportunities.

Cloud Security

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Author :
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 311073270X
Total Pages : 253 pages
Book Rating : 4.1/5 (17 download)

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Book Synopsis Cloud Security by : Sirisha Potluri

Download or read book Cloud Security written by Sirisha Potluri and published by Walter de Gruyter GmbH & Co KG. This book was released on 2021-07-19 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents research on the state-of-the-art methods and applications. Security and privacy related issues of cloud are addressed with best practices and approaches for secure cloud computing, such as cloud ontology, blockchain, recommender s

Emerging Technologies and Security in Cloud Computing

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Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.3/5 (693 download)

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Book Synopsis Emerging Technologies and Security in Cloud Computing by : Lakshmi

Download or read book Emerging Technologies and Security in Cloud Computing written by Lakshmi and published by . This book was released on 2024-02-29 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In today's digital age, the exponential growth of cloud computing services has brought significant opportunities for businesses and individuals alike. However, this surge in cloud adoption has also ushered in a host of critical concerns, with the paramount issues being data privacy and security. The goal of protecting sensitive information from cyber threats and ensuring confidentiality has become increasingly challenging for organizations across industries. Emerging Technologies and Security in Cloud Computing is a comprehensive guide designed to tackle these pressing concerns head-on. This authoritative book provides a robust framework for understanding and addressing the multifaceted issues surrounding data privacy and security in the cloud. It serves as a beacon of knowledge for academic scholars, researchers, and IT professionals seeking practical solutions to safeguard sensitive data. With its in-depth exploration of cloud computing fundamentals, innovative technologies, and emerging trends, this book equips readers with the knowledge and tools necessary to navigate the complex terrain of cloud security. Whether you are a seasoned IT expert or a curious academic, this book offers valuable insights, best practices, and real-world strategies to fortify your data privacy and security measures. Emerging Technologies and Security in Cloud Computing is your indispensable guide to ensuring the safety and integrity of data in the cloud, empowering you to embrace the full potential of cloud computing with confidence.

Network and System Security

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Author :
Publisher : Elsevier Inc. Chapters
ISBN 13 : 0128074019
Total Pages : 432 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Network and System Security by : Cem Gurkok

Download or read book Network and System Security written by Cem Gurkok and published by Elsevier Inc. Chapters. This book was released on 2013-08-26 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cloud computing is a method of delivering computing resources. Cloud computing services ranging from data storage and processing to software, such as customer relationship management systems, are now available instantly and on demand. In times of financial and economic hardship, this new low cost of ownership model for computing has gotten lots of attention and is seeing increasing global investment. Generally speaking, cloud computing provides implementation agility, lower capital expenditure, location independence, resource pooling, broad network access, reliability, scalability, elasticity, and ease of maintenance. While in most cases cloud computing can improve security due to ease of management, the provider’s lack of knowledge and experience can jeopardize customer environments. This chapter aims to discuss various cloud computing environments and methods to make them more secure for hosting companies and their customers.

Secure Data Managment

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Author :
Publisher : Springer
ISBN 13 : 3642235565
Total Pages : 170 pages
Book Rating : 4.6/5 (422 download)

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Book Synopsis Secure Data Managment by : Willem Jonker

Download or read book Secure Data Managment written by Willem Jonker and published by Springer. This book was released on 2011-08-19 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 8th VLDB Workshop on Secure Data Management held in Seattle,WA, USA in September 2, 2011 as a satellite workshop of the VLDB 2011 Conference . The 10 revised full papers presented were carefully reviewed and selected from 19 submissions. The papers are organized in topical sections on privacy protection and quantification, security in cloud and sensor networks and secure data managment technologies.

Data Privacy and Trust in Cloud Computing

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Author :
Publisher : Springer Nature
ISBN 13 : 3030546608
Total Pages : 149 pages
Book Rating : 4.0/5 (35 download)

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Book Synopsis Data Privacy and Trust in Cloud Computing by : Theo Lynn

Download or read book Data Privacy and Trust in Cloud Computing written by Theo Lynn and published by Springer Nature. This book was released on 2020-10-13 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book brings together perspectives from multiple disciplines including psychology, law, IS, and computer science on data privacy and trust in the cloud. Cloud technology has fueled rapid, dramatic technological change, enabling a level of connectivity that has never been seen before in human history. However, this brave new world comes with problems. Several high-profile cases over the last few years have demonstrated cloud computing's uneasy relationship with data security and trust. This volume explores the numerous technological, process and regulatory solutions presented in academic literature as mechanisms for building trust in the cloud, including GDPR in Europe. The massive acceleration of digital adoption resulting from the COVID-19 pandemic is introducing new and significant security and privacy threats and concerns. Against this backdrop, this book provides a timely reference and organising framework for considering how we will assure privacy and build trust in such a hyper-connected digitally dependent world. This book presents a framework for assurance and accountability in the cloud and reviews the literature on trust, data privacy and protection, and ethics in cloud computing.

Cloud Security

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Author :
Publisher : John Wiley & Sons
ISBN 13 : 0470938943
Total Pages : 1 pages
Book Rating : 4.4/5 (79 download)

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Book Synopsis Cloud Security by : Ronald L. Krutz

Download or read book Cloud Security written by Ronald L. Krutz and published by John Wiley & Sons. This book was released on 2010-08-31 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: Well-known security experts decipher the most challenging aspect of cloud computing-security Cloud computing allows for both large and small organizations to have the opportunity to use Internet-based services so that they can reduce start-up costs, lower capital expenditures, use services on a pay-as-you-use basis, access applications only as needed, and quickly reduce or increase capacities. However, these benefits are accompanied by a myriad of security issues, and this valuable book tackles the most common security challenges that cloud computing faces. The authors offer you years of unparalleled expertise and knowledge as they discuss the extremely challenging topics of data ownership, privacy protections, data mobility, quality of service and service levels, bandwidth costs, data protection, and support. As the most current and complete guide to helping you find your way through a maze of security minefields, this book is mandatory reading if you are involved in any aspect of cloud computing. Coverage Includes: Cloud Computing Fundamentals Cloud Computing Architecture Cloud Computing Software Security Fundamentals Cloud Computing Risks Issues Cloud Computing Security Challenges Cloud Computing Security Architecture Cloud Computing Life Cycle Issues Useful Next Steps and Approaches

Privacy-Preserving in Edge Computing

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Author :
Publisher : Springer Nature
ISBN 13 : 9811621993
Total Pages : 113 pages
Book Rating : 4.8/5 (116 download)

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Book Synopsis Privacy-Preserving in Edge Computing by : Longxiang Gao

Download or read book Privacy-Preserving in Edge Computing written by Longxiang Gao and published by Springer Nature. This book was released on 2021-06-01 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the rapid development of big data, it is necessary to transfer the massive data generated by end devices to the cloud under the traditional cloud computing model. However, the delays caused by massive data transmission no longer meet the requirements of various real-time mobile services. Therefore, the emergence of edge computing has been recently developed as a new computing paradigm that can collect and process data at the edge of the network, which brings significant convenience to solving problems such as delay, bandwidth, and off-loading in the traditional cloud computing paradigm. By extending the functions of the cloud to the edge of the network, edge computing provides effective data access control, computation, processing and storage for end devices. Furthermore, edge computing optimizes the seamless connection from the cloud to devices, which is considered the foundation for realizing the interconnection of everything. However, due to the open features of edge computing, such as content awareness, real-time computing and parallel processing, the existing problems of privacy in the edge computing environment have become more prominent. The access to multiple categories and large numbers of devices in edge computing also creates new privacy issues. In this book, we discuss on the research background and current research process of privacy protection in edge computing. In the first chapter, the state-of-the-art research of edge computing are reviewed. The second chapter discusses the data privacy issue and attack models in edge computing. Three categories of privacy preserving schemes will be further introduced in the following chapters. Chapter three introduces the context-aware privacy preserving scheme. Chapter four further introduces a location-aware differential privacy preserving scheme. Chapter five presents a new blockchain based decentralized privacy preserving in edge computing. Chapter six summarize this monograph and propose future research directions. In summary, this book introduces the following techniques in edge computing: 1) describe an MDP-based privacy-preserving model to solve context-aware data privacy in the hierarchical edge computing paradigm; 2) describe a SDN based clustering methods to solve the location-aware privacy problems in edge computing; 3) describe a novel blockchain based decentralized privacy-preserving scheme in edge computing. These techniques enable the rapid development of privacy-preserving in edge computing.

Secure Data Managment

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Author :
Publisher : Springer Science & Business Media
ISBN 13 : 3642235557
Total Pages : 177 pages
Book Rating : 4.6/5 (422 download)

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Book Synopsis Secure Data Managment by : Willem Jonker

Download or read book Secure Data Managment written by Willem Jonker and published by Springer Science & Business Media. This book was released on 2011-08-19 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 8th VLDB Workshop on Secure Data Management held in Seattle,WA, USA in September 2, 2011 as a satellite workshop of the VLDB 2011 Conference . The 10 revised full papers presented were carefully reviewed and selected from 19 submissions. The papers are organized in topical sections on privacy protection and quantification, security in cloud and sensor networks and secure data managment technologies.

Secure Data Management

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Author :
Publisher : Springer
ISBN 13 : 3642328733
Total Pages : 177 pages
Book Rating : 4.6/5 (423 download)

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Book Synopsis Secure Data Management by : Willem Jonker

Download or read book Secure Data Management written by Willem Jonker and published by Springer. This book was released on 2012-08-13 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 9th VLDB Workshop on Secure Data Management held in Istanbul, Turkey, in August 27, 2012. The 12 revised full papers presented were carefully reviewed and selected from 22 submissions. The papers are organized in topical sections on privacy protection, access control, secure storage on the cloud, and trust on the Web.

Securing the Cloud

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Author :
Publisher : CRC Press
ISBN 13 : 1000005208
Total Pages : 232 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Securing the Cloud by : Curtis Franklin Jr.

Download or read book Securing the Cloud written by Curtis Franklin Jr. and published by CRC Press. This book was released on 2019-03-29 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides solutions for securing important data stored in something as nebulous sounding as a cloud. A primer on the concepts behind security and the cloud, it explains where and how to store data and what should be avoided at all costs. It presents the views and insight of the leading experts on the state of cloud computing security and its future. It also provides no-nonsense info on cloud security technologies and models. Securing the Cloud: Security Strategies for the Ubiquitous Data Center takes the position that cloud security is an extension of recognized, established security principles into cloud-based deployments. It explores how those principles can be put into practice to protect cloud-based infrastructure and data, traditional infrastructure, and hybrid architectures combining cloud and on-premises infrastructure. Cloud computing is evolving so rapidly that regulations and technology have not necessarily been able to keep pace. IT professionals are frequently left to force fit pre-existing solutions onto new infrastructure and architectures for which they may be very poor fits. This book looks at how those "square peg/round hole" solutions are implemented and explains ways in which the pegs, the holes, or both may be adjusted for a more perfect fit.

ENCRYPTED-REVERSIBLE DATA HIDING FOR PRIVACY PROTECTION IN CLOUD ENVIRONMENT

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Author :
Publisher : Jeeva K. a
ISBN 13 : 9788612350980
Total Pages : 0 pages
Book Rating : 4.3/5 (59 download)

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Book Synopsis ENCRYPTED-REVERSIBLE DATA HIDING FOR PRIVACY PROTECTION IN CLOUD ENVIRONMENT by : Jeeva K. A

Download or read book ENCRYPTED-REVERSIBLE DATA HIDING FOR PRIVACY PROTECTION IN CLOUD ENVIRONMENT written by Jeeva K. A and published by Jeeva K. a. This book was released on 2022-10-24 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fatal attraction to the internet due to its flexibility for transferring digital content has paved the way for certain copyright infringement issues. Any copyrighted material can be easily exchanged over the internet without the consent of its rightful owner. Digital watermarking, which is an application of data hiding technique, has been evolved as a feasible solution to protect Digital Management Rights and content authentication and is still a hot topic for researchers. In classic watermarking techniques, the quality of the cover medium was given the least importance in comparison with the secret data endorsed during the retrieval process. But there are certain scenarios such as medical imagery where every bit of information of cover medium is equally important as the secret code during the retrieval. Reversible data hiding (RDH) addresses this problem and gives equal importance to the cover as well as secret data. Without mentioning the current status of Cloud Computing, the story of atrocities in the digital communication field would be incomplete. As a resource of abundant storage space and limitless software applications, Cloud computing is spreading its wings over the world, day by day. Any entrepreneur can hire the above-mentioned services offered by cloud storage providers by paying nominal charges and thereby able to reduce their investment in hardware and software procurement required for computational jobs. Apart from the initial investment in the infrastructure, the maintenance cost is also saved since the entire machinery for computation and storage is maintained by the service providers. The objective of this book is to develop privacy preserving secure reversible data hiding algorithms on grey images that can be either used for covert communication or authentication. The algorithms should preserve not only the secrecy of the extra bits added but also the secrecy of the host signal. They should be suitable to be adapted in the cloud environment so that third party outsourcing is possible without leaking privacy. Usually, in a cloud scenario, the client will be outsourcing storage and services from the cloud and authentication of electronic data and its secrecy becomes a big issue. This book presents high capacity image based reversible data hiding schemes which can be evaluated both in the plaintext domain and encrypted domain. We put forth four algorithms to preserve the authenticity as well as the privacy of the multimedia data without fear of an intrusion. All these algorithms use encrypted versions of natural images as a host image on which additional data will be embedded, and allow perfect reversibility on retrieval of these natural images in noise-free conditions. Using these algorithms the content owner could outsource an embedding algorithm from an untrusted third party in a cloud environment without disclosing the cover to the embedder as it contains very sensitive data. The owner encrypts the cover image to maintain the secrecy of the data and embedder embeds the secret data on the encrypted image coefficients homomorphically without knowing the host image. The owner could permit the authorized people with a valid data hiding key for extracting the embedded secret data in the encrypted domain but allow only the intended single recipient with the corresponding decryption key to decode the marked data and reveal the cover.