Cloud computing is changing businesses and governments. It offers flexible computation resources in a model where customers only pay for resources they use. This leads to cost savings when compared to a situation where organizations manage their own server farms. Very often such servers are running at a very low utilization level, which is partly because of old habits that lead to not placing m...

----------------------------------------------------------------ABSTRACT----------------------------------------------------------------Like a Server Operating System (SOS) and a Cloud Operating System (COS) are responsible for computing resources. In a server the OS is responsible for managing the various hardware resources inside a server’s frame. A Web Operating System serves the same purpos...

In this paper proposes multi-user searchable encryption with the help of order preserve encryption for providing efficient encrypted data. when proposed these constructions it formally defines the multiuser settings for ranked keyword search by using searchable symmetric encryption and order preserve symmetric encryption. Consider a dataowner is the administrator who can uploads the files befor...

Cloud outsource storage is one of important services in cloud computing. Cloud users upload data to cloud servers to reduce the cost of managing data and maintaining hardware and software. To ensure data confidentiality, users can encrypt their files before uploading them to a cloud system. However, retrieving the target file from the encrypted files exactly is difficult for cloud server. This ...

An energy management system in a commercial/industrial building (BEMS) plays an important role as a power consumer in a smart grid. But, many building facilities cannot afford the system, and a cloud service emerges as an alternative. As known, cloud services still struggle with security problems, which prevents the BEMS from being widely deployed on the cloud. This paper addresses security con...

Distributed Cloud Computing Network is an important subsystem in an on going research referred to as Smart Green Energy Management System (SGEMS). In this paper, we propose a dynamic service availability architecture using two server types (virtualized and legacy server types) and their QoS metrics (particularly service delay time and resource availability) for detailed analysis. The work is ai...

With the rapid growth of technology, cloud computing become more and more popular. Many organizations have been attracted by the variety of services that have been offered by the clouds in form of resources and applications. Database system is one of the most widely used systems in industry. Cloud providers offer database-as-a-service to attract more clients to use their services. However, exec...

Due to the high popularity of cloud computing, more data owners are motivated to outsource the data to the cloud server. In that sensitive data will be encrypted before outsourcing to the cloud server for security purpose. In this paper, we introduce a secure multi-keyword ranked search over encrypted cloud data, which performs dynamic update operations like deletion and insertion of documents....