Data access control is an effective way to ensure the data security in the cloud. Due to data outsourcing and untrusted cloud servers, the data access control becomes a challenging issue in cloud storage systems. Ciphertext-Policy Attribute-based Encryption (CP-ABE), as a promising technique for access control of encrypted data, is very suitable for access control in cloud storage systems due t...

Cloud computing is an architecture for facilitating computing service through the internet on requirement and pay per use access to a group of shared resources namely networks, storage, servers, services and applications, without physically acquiring them Cloud DBMS is a distributed database that gives computing as a service. It is sharing of web infrastructure for resources, software and infor...

Using cloud computing user will be able to store and secure their data without burden of local computer. Additionally, users should be able to just use the cloud storage as if it is local, without distressing about the need to verify its integrity. By enabling and using public audit for cloud storage, it can check the integrity of the data. Finding data that are corrupted using this is difficul...

Many scientific workflows are data intensive where a large volume of intermediate data is generated during their execution. Some valuable intermediate data need to be stored for sharing or reuse. Traditionally, they are selectively stored according to the system storage capacity, determined manually. As doing science on cloud has become popular nowadays, more intermediate data in scientific clo...

CLOUD computing has emerged as a disruptive technology andnew computing paradigm inwhich IT resources (hardware, software, applications, data storage, computing capacity, etc.) are provided as services over the Internet, through “everything-as-a-service”. It builds on the foundations of distributed computing, grid computing, virtualization, service orientation, etc. Cloud storage, which is one ...

Advances in networking technology and an increase in the need for computing resources have prompted many organizations to outsource their storage and computing needs. This new economic and computing model is commonly referred to as cloud computing and includes various types of services such as: infrastructure as a service (IaaS), where a customer makes use of a service provider’s computing, sto...

IT enterprises have recently witnessed a dramatic increase in data volume and faced with challenges of storing and retrieving their data. Thanks to the fact that cloud infrastructures offer storage and network resources in several geographically dispersed data centers (DCs), data can be stored and shared in scalable and highly available manner with little or no capital investment. Due to divers...

Our life without Internet-based services is hard to imagine: We search for information with Google, share thoughts on Facebook, buy at Amazon and store our pictures on Flickr. Many of these Internet-based services focus on easy exchange of information, providing comfortable and ubiquitous storage and sharing. Relieved from hardware purchases, software bug fixes and infrastructure maintenance, u...

The success of cloud computing is driven by the tremendous economic benefit offered to companies, private citizens and public administration to deploy, provision and use cloud services in a cost effective manner. The cloud is gaining increasing importance and applicability in numerous application domains. By shaping the way we access, store, and compute on data, the cloud offers a largely profi...