Cloud storage security by aaron wheeler free pdf download

In Chapter 11, Albanese et al. In Chapter 12, Kontaxis et al. The last section of the book addresses issues related to security monitoring and system resilience. In Chapter 14, Wu et al. 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.

Abstract: Cloud Computing is considered to be the next-generation architecture for ICT where it moves the application software and databases to the centralized large data centers. It aims to offer elastic IT services where clients can benefit from significant cost savings of the pay-per-use model and can easily scale up or down, and do not have to make large investments in new hardware. However, the management of the data and services in this cloud model is under the control of the provider.

Consequently, the cloud clients have less control over their outsourced data and they have to trust cloud service provider to protect their data and infrastructure from both external and internal attacks. This is especially true with cloud storage services. Nowadays, users rely on cloud storage as it offers cheap and unlimited data storage that is available for use by multiple devices e.

Besides famous cloud storage providers, such as Amazon, Google, and Microsoft, more and more third-party cloud storage service providers are emerging. These services are dedicated to offering more accessible and user friendly storage services to cloud customers. Examples of these services include Dropbox, Box. These cloud storage services deliver a very simple interface on top of the cloud storage provided by storage service providers.

File and folder synchronization between different machines, sharing files and folders with other users, file versioning as well as automated backups are the key functionalities of these emerging cloud storage services.

Cloud storage services have changed the way users manage and interact with data outsourced to public providers. With these services, multiple subscribers can collaboratively work and share data without concerns about their data consistency, availability and reliability. Although these cloud storage services offer attractive features, many customers have not adopted these services.

Since data stored in these services is under the control of service providers resulting in confidentiality and security concerns and risks. Therefore, using cloud storage services for storing valuable data depends mainly on whether the service provider can offer sufficient security and assurance to meet client requirements.

From the way most cloud storage services are constructed, we can notice that these storage services do not provide users with sufficient levels of security leading to an inherent risk on users' data from external and internal attacks. These attacks take the form of: data exposure lack of data confidentiality ; data tampering lack of data integrity ; and denial of data lack of data availability by third parties on the cloud or by the cloud provider himself.

Therefore, the cloud storage services should ensure the data confidentiality in the following state: data in motion while transmitting over networks , data at rest when stored at provider's disks. To address the above concerns, confidentiality and access controllability of outsourced data with strong cryptographic guarantee should be maintained.

To ensure data confidentiality in public cloud storage services, data should be encrypted data before it is outsourced to these services. Although, users can rely on client side cloud storage services or software encryption tools for encrypting user's data; however, many of these services fail to achieve data confidentiality. Box, for example, does not encrypt user files via SSL and within Box servers.

In addition, some cloud storage services support convergent encryption for encrypting users' data exposing it to confirmation of a file attack. On the other hand, software encryption tools use full-disk encryption FDE which is not feasible for cloud-based file sharing services, because it encrypts the data as virtual hard disks. Although encryption can ensure data confidentiality; however, it fails to achieve fine-grained access control over outsourced data.

Since, public cloud storage services are managed by un-trusted cloud service provider, secure and efficient fine-grained access control cannot be realized through these services as these policies are managed by storage services that have full control over the sharing process. Therefore, there is not any guarantee that they will provide good means for efficient and secure sharing and they can also deduce confidential information about the outsourced data and users' personal information.

In this work, we would like to improve the currently employed security measures for securing data in cloud store services. To achieve better data confidentiality for data stored in the cloud without relying on cloud service providers CSPs or putting any burden on users, in this thesis, we designed a secure cloud storage system framework that simultaneously achieves data confidentiality, fine-grained access control on encrypted data and scalable user revocation.

This framework is built on a third part trusted TTP service that can be employed either locally on users' machine or premises, or remotely on top of cloud storage services.

In addition, this service only retains user's secret key s not data. Moreover, to ensure high security for these keys, it stores them on hardware device.

Furthermore, this service combines multi-authority ciphertext policy attribute-based encryption CP-ABE and attribute-based Signature ABS for achieving many-read-many-write fine-grained data access control on storage services. Moreover, it efficiently revokes users' privileges without relying on the data owner for re-encrypting massive amounts of data and re-distributing the new keys to the authorized users.

It removes the heavy computation of re-encryption from users and delegates this task to the cloud service provider CSP proxy servers. These proxy servers achieve flexible and efficient re-encryption without revealing underlying data to the cloud. In our designed architecture, we addressed the problem of ensuring data confidentiality against cloud and against accesses beyond authorized rights. To resolve these issues, we designed a trusted third party TTP service that is in charge of storing data in an encrypted format in the cloud.

To improve the efficiency of the designed architecture, the service allows the users to choose the level of severity of the data and according to this level different encryption algorithms are employed. Moreover, we support two levels of revocation: user and attribute revocation so that we can comply with the collaborative environment.

Last but not least, we validate the effectiveness of our design by carrying out a detailed security analysis. This analysis shall prove the correctness of our design in terms of data confidentiality each stage of user interaction with the cloud. Build a resilient cloud architecture to tackle data disasters with ease Key Features Gain a firm grasp of Cloud data security and governance, irrespective of your Cloud platform Practical examples to ensure you secure your Cloud environment efficiently A step-by-step guide that will teach you the unique techniques and methodologies of Cloud data governance Book Description Modern day businesses and enterprises are moving to the Cloud, to improve efficiency and speed, achieve flexibility and cost effectiveness, and for on-demand Cloud services.

However, enterprise Cloud security remains a major concern because migrating to the public Cloud requires transferring some control over organizational assets to the Cloud provider. There are chances these assets can be mismanaged and therefore, as a Cloud security professional, you need to be armed with techniques to help businesses minimize the risks and misuse of business data.

The book starts with the basics of Cloud security and offers an understanding of various policies, governance, and compliance challenges in Cloud. This helps you build a strong foundation before you dive deep into understanding what it takes to design a secured network infrastructure and a well-architected application using various security services in the Cloud environment. A Microsoft subscription offers an ad-free interface, custom domains, enhanced security options, the full desktop version of Office, and 1 TB of cloud storage.

Safely store and share your photos, videos, files and more in the cloud. Your first 15 GB of storage are free with a Google account.

The OWASP Internet of Things Project is designed to help manufacturers, developers, and consumers better understand the security issues associated with the Internet of Things, and to enable users in any context to make better security decisions when building, deploying, or assessing IoT technologies. The ThreatLinQ security intelligence portal gives you an effective way to evaluate the changing threat landscape and connect the intelligence you gather to specific policy changes.

Your team can proactively optimize network security and reduce business risks with real … Protecting your sensitive files in the cloud is a top priority. That's why we developed advanced security controls, intelligent threat detection, and complete information governance. But we know your needs don't stop there. Strict data privacy?

Data residency? Industry compliance? At CloudKitchens, we help restaurateurs succeed in delivery. Our ghost kitchens give you a delivery model that works, so you can focus on the food. Photo Storage: Amazon Prime members get free, unlimited, full-resolution photo storage, plus 5 GB video storage.

All other customers get 5 GB photo and video storage. Grow the storage plan that's right for you. File hosting service - Wikipedia 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.

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.

It also illustrates how malicious attackers benefit from the compromised security of outsourced data in cloud storage and how attacks work in real situations, together with the countermeasures used to ensure the security of outsourced data. Furthermore, the book introduces a number of emerging technologies that hold considerable potential — for example, blockchain, trusted execution environment, and indistinguishability obfuscation — and outlines open issues and future research directions in cloud storage security.

The topics addressed are important for the academic community, but are also crucial for industry, since cloud storage has become a fundamental component in many applications. The book offers a general introduction for interested readers with a basic modern cryptography background, and a reference guide for researchers and practitioners in the fields of data security and cloud storage.

It will also help developers and engineers understand why some current systems are insecure and inefficient, and move them to design and develop improved systems. Not many people do. With Cloud Security and Privacy, you'll learn what's at stake when you trust your data to the cloud, and what you can do to keep your virtual infrastructure and web applications secure.