A Research On Cloud Computing

Cloud computing is an emerging model where users can gain access to their applications from anywhere through their connected devices. A simplified user interface makes the infrastructure supporting the applications transparent to users. The applications reside in massively-scalable data centers where compute resources can be dynamically provisioned and shared to achieve significant economies of scale. A strong service management platform results in near-zero incremental management costs when more IT resources are added to the cloud. The proliferation of smart mobile devices, high speed wireless connectivity, and rich browser-based Web 2.0 interfaces has made the network-based cloud computing model not only practical but

(3) Web Services in the Cloud - instead of delivering full applications, this service allows users to access APIs for added functionality.

Personal health record (PHR) is an emerging model of patient-centric health information exchange system, which has been often outsourced to be stored at any third party locations, such as cloud service providers. However, there have been wide privacy concerns as the personal health information could be exposed to unauthorized parties and to those third party servers. To assure the patients control over accessing their own Personal Health Records, it is required to encrypt the PHRs before outsourcing. Yet, there are issues such as risks of scalability in key management, privacy exposure, flexible access, and efficient user revocation, has been remained the most important challenges toward achieving fine-grained, cryptographically enforced data access control. For, designing the above system different methods of encryption techniques have to be studied and see what are the main advantages and disadvantages of the system as few of disadvantage in one system can be used advantage of another system. We have to study how data is stored in cloud system and how users can access them. To design a system such that it has different level of accessing flexibility such that the owner can choose which accessing is required for different user such that data tamper and data corruption can be eliminated. To design a system which has time limited access and data

Reordering the economics of software, cloud computing is alleviating many of the capital expenses (CAPEX), inflexibility of previous-generation software platforms, and inability of on-premise applications to be customized on an ongoing basis to evolving customer needs. These are the three top factors of many that are driving the adoption of cloud computing technologies in enterprises today. Implicit in the entire series of critical success factors that are forcing the migration of on-premise to cloud computing platforms is the greater agility and speed the latter platform offers. Line-of-business executives today are increasingly defining the priorities of IT departments, often also defining budgeting cycles as well. Their primary concern is ability able to quickly get up and running on a new enterprise application, integrating its workflows into existing legacy and 3rd party systems, databases and applications, while also getting the performance gains of the new software (Bentley, 2008). Due to these factors cloud computing is evolving rapidly, changing the economics of enterprise software especially. Large-scale systems are most often purchased using Capital Expense (CAPEX) budgeting processes that often take several months ot over a year to complete. Often CAPEX-based spending on enterprise software also requires the board of directors for a company to authorize spending large amounts on new

The objective of this paper is to bestow secure patient-centric personal health record access and efficient key management as well. Idea here is to introduce a new technology that includes the encryption standards as well as water marking concept in order to protect the privacy of the patient’s health records. Firstly, attribute based encryption concept which provides data encryption by generating private key to the user and gives the user to provide access to the person who they want to share by generating public key during the decryption of their personal health record.

ABSTRACT: A Distributed computing is a rising figuring innovation. It allows clients; store their information, learning or data remotely. The reason for this paper is to secure access control plan for open mists. We display a "Security Preserving Two Layer Encryption Access control in Public Clouds", which gives more security and protection as contrast with the custom approaches. Current ways to deal with uphold access administration polices (ACPs) on outsourced information utilizing chose encryption oblige associations to deals with all keys and encryptions and transfer encoded information on the remote stockpiling. Such kind of methodologies brings about high correspondences and the reckoning expense to oversee keys and encryptions at whatever point client roll out improvements. To delegating so as to take care of this issue as a significant part of the Access Control authorization obligations as conceivable to the cloud while diminishing the data presentation hazard because of intriguing clients and Cloud.

It is crucial that the cloud customer sets up an clearly characterized group to create and support a cloud business technique and execution plan for cloud benefits that will be a part of the entire IT environment. Previously, the proposals, plan, advancement, organization and support of the IT environment was mainly determined by the IT department. Cloud computing is making a development where the business pioneers are getting drawn in light of the fact that they see cloud computing as an instrument to get nearer to their clients and increment sales/income. Adoption of cloud computing is seen as a vital business choice that permits business to enhance IT effectiveness as well as help in accomplishment of worldwide business objectives like

Cloud computing is the use of services over the internet. The services may include software development platform, servers, storage, software etc. Cloud broker using the property known as cloud brokerage, which will help the consumers to find out better solutions. Now most of the companies selecting cloud based on the fact that it provide more security and privacy assurance to the services. IFC model helps to identify if any policy error has occurred, data management obligations. Speech recognition is one of the main technologies available in every modern smart phone. Even though they are commonly available quality of speech recognition is still not sufficient to replace the common hand written text.

Cloud computing (CC) innovation can be depicted as the up and coming era of Information innovation for organizations, instructive establishments and legislative offices; which gives simple and reasonable access to best in class innovation; IT, mechanical application and administrations. Because of the developing requirements for data innovation (IT) and the flow diminishing worldwide money related steadiness, numerous advanced education establishments including colleges, are confronting issues in giving the essentials of IT backings for managerial, instructive, and research exercises. To accomplish our point, CC Cloud works was checked on to distinguish the staff positions and additionally their obliged administrations. The results of the audit were connected to figure out the models, administrations, and applications that are accessible in instructive situations.

The low-hanging fruit comes from the market segments that require a clustering of compute and/or storage devices, namely, High Performance Computing (HPC) and Storage Area Networks. Additional customers will users of cloud Computing and the rapidly growing Edge Computing market.

Proposing an attribute-based secure data retrieval scheme using Cipher text-policy attribute-based encryption (CP-ABE) for decentralized DTNs where multiple key authorities handle their attributes independently. And demonstrate how to apply the proposed mechanism to securely and efficiently manage the confidential data distributed in the disruption-tolerant military network. Applying CP-ABE in decentralized DTNs introduces several security and privacy challenges with regard to the attribute revocation, key escrow, and coordination of attributes issued from different authorities.

The motivation behind choosing this topic is the many advantages of Computing of encrypted data and homomorphic encryption (HE) like Delegation which is when a client can delegate the process of data to the powerful third party (server) while still maintaining data privacy. To this end, the client could send the server an encryption of the data, created employing an HE scheme. The server is able to run processes over the encrypted data, and return an output to the client; the client needs only to decrypt to receive the processed answer. The server here can actually be a collection of computing devices (cloud).

Privilege Control: This security component is necessary to control cloud usage by different individuals and organizations. It protects user’s privacy and ensures data integrity and secrecy by applying an anthology of rules and policies. Cloud users are granted different levels of access permissions and resource ownerships based on their account type. Only authorized users can access the authorized parts of the encrypted data through identity-based decryption algorithm. For example, in a healthcare cloud, not all practitioners have the same privileges to access patient’s data, this may depend on the degree to which a practitioner is involved/specialized in treatment; patients can also allow or refuse distribution their information with other healthcare practitioners or hospitals [24]. Encryption/Decryption algorithms [23] such as AES [5] [7] and RC4 [6] can be employed by this component to achieve confidentiality of information [22].

Cloud computing is one of the new models of computing that is used to provide for the computing infrastructure. A good computing cloud data management system must satisfy the following goals like availability, scalability, elasticity, performance [1]. The cloud computing looks to satisfy the needs of various levels of clients and workloads. Hence a guaranteed contract between the service provider and the clients has been made known as the Service Level Agreement (SLA). Both the providers and consumers consider successful SLA management.

During the course of this class, I believe that my positive attitude towards difficult situations has helped me overcome many problems. When I started my individual topics, I reviewed several similar projects from last year. After reading their reports, I gained deep understanding about the Cloud computing, but I was getting worried about what are some new materials I should include in my slices and my final report. I didn’t give up or get frustrated. Instead, I start doing research step by step.