Now a day even though Cloud services offer flexibility, scalability, there have been proportionate concerns about security. As more data moves from centrally located server storage to the cloud storage. Security is the most important factor related to the cloud computing. As the users can stores his private data on cloud with the help of cloud service providers. Data stored on single cloud is risk of service availability failure due to attacker enters in single cloud.
Our approach is to movement towards multi-clouds that is data stored on multi-cloud service providers. In this system we propose a secured cost-effective multi-cloud storage (SCMCS) model in cloud computing in which holds an economical distribution of data among the available cloud service provider (SP) in the market, instead of single cloud to provide customers with data availability as well as security. This work aims to encourage the use of multi-clouds due to its ability to reduce security risks that affect the cloud computing user. Our proposed model provides a better security for customer’s data according to their available budgets from that they can choose cloud service provider.
Keywords: Cloud Networks , Service provider ,Multi- Cloud Storage ,Security, Cloud Services, Cloud Computing.
1. INTRODUCTION
Cloud computing is nothing but rate server and internet based model .A huge amount of data being retrieved from geographically distributed data sources and non localized data handling requirements. The industrial information technology towards a subscription based or pay-per-use service business model known as cloud computing. One of the advantage of cloud computing is cloud data storage, in which users do not have to store his own data on their own server...
... middle of paper ...
...line at payment processor breach may b.html, Jan, 2009 http://voices.washingtonpost.com/securityfix/2009/01/.
[5] Amazon.com, ”Amazon s3 availablity event: July 20, 2008”, Online at http://status.aws.amazon.com/s3-20080720.html, 2008.
[6] P. S. Browne, ”Data privacy and integrity: an overview”, In Proceeding of SIGFIDET 71 Proceedings of the ACM SIGFIDET (now SIGMOD), 1971.
[7] W. Itani, A. Kayssi, A. Chehab, ”Privacy as a Service: Privacy- Aware Data Storage and Processing in Cloud Computing Architectures,” Eighth IEEE International Conference on Dependable, Autonomic and Secure Computing, Dec 2009.
[8] M. Dijk, A. Juels, ”On the Impossibility of Cryptography Alone for Privacy-Preserving Cloud Computing”, HotSec 2010.
[9] P. F. Oliveira, L. Lima, T. T. V. Vinhoza, J. Barros, M. Medard ”Trusted storage over untrusted networks”, IEEE GLOBECOM 2010, Miami, FL. USA.
Today, cloud services are widely used by people around the world in purpose of business, government, and personal use. With cloud services, users use resources - could be storage, computional capability, or software- from cloud service provider mediated by Internet. Doing computational work with cloud services involves a number of computers to do the large-scale works, therefore it usually called by distributed system over Internet (reference, paper?). Cloud service also offers a large-scale service where users only pay for what they use (on-demand). Therefore, companies migrate to business-to-business cloud as they don’t have to spend money building intial cost for their computational business. For instance, instead of building their own storage, network, cooling, they could just “rent” resource from cloud provider for the lower cost. Besides money benefits, cloud resources also able to be shared by multiple...
Homomorphic Encryption allows access to highly scalable, inexpensive, on-demand computing resources that can execute the code and store the data that are provided to them. This aspect, known as data outsourced computation is very attractive, as it alleviates most of the burden on IT services from the consumer. Nevertheless, the adoption of data outsourced computation by business has a major obstacle, since the data owner does not want to allow the un trusted cloud provider to have access to the data being outsourced. Merely encrypting the data prior to storing it on the cloud is not a viable solution, since encrypted data cannot be further manipulated. This means that if the data owner would like to search for particular information, then the data would need to be retrieved and decrypted a very costly operation, which limits the usability of the cloud to merely be used as a data storage centre.
If organisation’s sensitive data and intellectual property resides on public cloud then it is strongly advisable to implement strong encryption techniques. The threat of data tampering is at its highest when data is being processed in the cloud. Essentially, this is because when data are
Cloud computing introduces significant new ways of attacks. In November 2012, researchers from the University of North Carolina, the University of Wisconsin and RSA Corporation released a paper describing how a virtual machine could use side channel timing information to extract private cryptographic keys being used in other virtual machines on the same physical server [2]. However, according to CSA [1] in many cases an attacker wouldn’t even need to go to such lengths. If a multitenant cloud service database is not properly designed, a flaw in one client’s application could allow an attacker access not only to that client’s data, but every other client’s data as well.
Cloud computing is a model for enabling convenient, on demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction. This cloud model promotes availability and is composed of five essential characteristics, three service models, and four deployment models.
Cloud computing is a relatively new technology that allows data to be stored, distributed and manipulated with greater ease than ever. As described by Gurjar and Rathore (2013), the “Cloud is a large pool of easily usable and accessible virtualized resources. These resources can be dynamically reconfigured to adjust to a variable load, allowing also for an optimum resource utilization” (p. 1). By moving data, documents and media to the Cloud, the potential for business efficiency and productivity increases and anyone with internet can take advantage of the benefits. As with anything, it is important to understand the risks and benefits in order to weigh whether or not moving to the Cloud is the best move for the business. Some companies, like Lavu, an iPad based point of sale system, operate solely on the Cloud. Without Cloud computing capability, some organizations would not exist.
Cloud is the result of a decade research in the field of distributing computing , utility computing, virtualization , grid computing and more recently software, network services and web technology which is changeable evolution on demanding technology and services also as looking to the rapid growth of cloud computing which have changed the global computing infrastructure as well as the concept of computing resources toward cloud infrastructure. The important and interest of cloud computing increasing day by day and this technology receives more and more attention in the world (Jain, 2014) the mostly widely used definition of cloud computing is introduced by NIST “as a model for enabling a convenient on demand network access
Cloud data storage is reaching small to medium sized companies, this is being achieved by flexible costs which is assisting manageability of data capacity. The more data stored, the lower the price. This is encouraging the strategic side of companies to look at this new phenomenon closely. As this is geared towards bringing enterprise ...
Enterprises and individual users are outsourcing their services on the web, instead of maintaining the resources of their own. Outsourcing of technical resources enables the organization to concentrate on business need instead of technical aspect, which is looked after by the expert of the IT area. To facilitate such users, a web based paradigm known as cloud computing has emerged and offering the services on utility model [p3]. The major goal of Cloud computing is to reduce the operating cost, increase throughput, increase the reliability and availability [p10].
Discription: Services of cloud are used by both larger and smaller scale organizations.Cloud computing has huge advantages but it is a global phenomenon therefore it has some disadvantages. Both the Service providers and the consumers must work together to ensure safety and security of data on clouds. Customers of cloud services are in fear of data loss and privacy.This paper propose to use The Cloud Security Alliance (CSA) release of a new governance, risk management, and compliance stack for cloud computing. The cloud security tools are available for free download, is meant to help organizations create public and private clouds that act accordingly with industry standards for accepted governance, risk, and compliance (GRC) best practices. The GRC stack has three components: a controls framework, a technical foundation and a questionnaire for assessing what the CSA (cloud security alliance) calls for platform-, infrastructure- and software-as-a-service
Cloud computing facilitates sharing of computing and storage resources with the aim of reducing computing expenses in organizations. Moreover, cloud computing facilitates information sharing among individuals within a cloud. Despite being advantageous, data stored in a cloud is usually prone to hacking and other security issues. This paper addresses the various mitigation measures that organizations are using to ensure that data stored in the cloud is secure.
When they wanted to save photos online instead of on your personal computer, they are able to use “cloud computing” service. Cloud computing means that the transfer of computing data or information over the internet. Not just to keep data in your personal computer, they are able to save the data on internet server to open their data in any computer. In this report we will walk through about what is cloud computing, what kinds of model did cloud computing have, types of cloud computing, benefits of cloud computing, and security.
Cloud computing is the progression of other computing technologies such as paral-lel computing, distributed computing, and grid computing. Its main principle is to disseminate the computing grind stones to distributed computers. Majority of us still use the PC’s and laptops to cache the data and files, sharing of data and files, and to send emails. If our pc’s diverse...
Cloud computing is a model for delivering data resources to cloud end users, in which data resources are stored in distributed manner, data resources can be accessed on the internet using web-based tools and applications. Data and software packages are stored in server database. However, cloud server allows the cloud users to access data resources as long as system is connected to the internet.
Cloud computing is one of the fast growing trend in today’s world. Each day there will be new updates to be popped out about cloud computing. Cloud computing is a type of computing that relies on sharing computer resources rather than having local servers or personal devices to handle application. Cloud helps us to access the software that we have in our pc. Cloud computing is always user-centric, task-centric, powerful, accessible, intelligent, programmable. Users connect to cloud from their personal computers over internet where the user can see only the application they use but not the cloud hardware and its operating system. SAAS, PAAS, IAAS are the cloud service. SAAS is defined as service-on-demand, where a provider will license software tailored. In PAAS model, cloud providers deliver a computing platform. IAAS model provides computers physical or virtual machines and other resources. Cloud storage is nothing but the storage of data online in cloud, where the storage is of three types- public, private and hybrid cloud. Finally we have overcome the drawback of the data loss due to server crash via duplication of data in more than one server.