Cloud storage enables users to remotely store their data and enjoy the on-demand high quality cloud applications without the burden of local hardware and software management. Though the benefits are clear, such a service is also relinquishing users’ physical possession of their outsourced data, which inevitably poses new security risks towards the correctness of the ...

In recent years, a lot of focus has been done on establishing Wireless Sensor Networks (WSNs) for environment monitoring, natural disaster management, military and remote medical systems. When it comes to WSNs, the major problem faced is the implementation of efficient routing protocol that is fault tolerant and can avoid obstacles. An obstacle is a ...

Mobile Ad-hoc NETworks (MANETs) depends on network cooperation schemes to work properly. It assume that mobile nodes voluntary cooperate in order to work properly. Nevertheless, if nodes have a selfish behavior and are unwilling to cooperate, the overall network performance could be seriously degraded. The use of watchdogs is a well-known mechanism to detect selfish ...

Cloud storage provides users to easily store their data and enjoy the cloud applications need not install in local hardware and software system. In cloud computing, data is moved to a remotely located cloud server. Many users place their data in the cloud and so data integrity is very important issue in cloud storage. In ...

Human being can remember graphical notations & signs, very easily & for a long time. This paper is to build a mechanism for password so that the users’ password become more secure, remembering durability & easy to create. The authors have implemented for multi-tier authentication system, because multi-tier authentication system is more secure than single ...

The attribute based access to extensible media in cloud to help sharing the contents to the network. The data encryption standard cipher text policy algorithm is use. It’s an important to protect the data from unauthorized access. Media contents such as images, audio, video, text, etc. These contents are protected by this security method. All ...

Cloud computing has been envisioned as the next generation architecture of the IT enterprise. Today’s organizations, but there exist a many security vulnerabilities. Cloud computing dynamically allocate, deploy, redeploy and cancel the services on the basis of demand. However, cloud computing inevitable possess new challenges because traditional security mechanisms being followed are in sufficient to ...

Cloud computing is an innovative framework for developing, deploying new things. The primary use of cloud is for storage. Traditionally users used to save their data in a hard disk. But they need to carry the hard disk with them all around. The capacity of hard disk failed to match against the tremendous growth of ...

Wireless Sensor Networks (WSNs) have attracted many researchers due to its wide range of application and benefits. Most of researchers take care about energy parameter of WSNs. To increase life time and for saving energy, Data aggregation plays very important role. Many data aggregation approaches are introduced but cluster-based data aggregation protocols are most popular ...

Due to wide range of applications, low cost, small in size, low power, and self-organizing behavior, wireless sensor network is a popular subject in research community. Wireless sensor network node has low energy, due to this, energy consumption of node during data aggregation plays major role in wireless sensor network. Routing protocol with large overhead ...