Multi Cloud Environment

Multi-user file sharing scheme in cloud environment Wang Zhenghua Han Yu Liu Jichang with the rapid development of cloud storage technology, More and more users use cloud storage services to transfer local file storage to the cloud to implement file sharing with multiple users. Aiming at the problem of different access rights for multiple users sharing the same file in cloud environment, an efficient multi-user file sharing scheme is proposed. The new scheme is based on ElGamal encryption system and proxy encryption technology, and realizes that the file owner can only add The secret once allows shared users to access different content targets. Compared with the existing scheme ...

Hierarchical multi-table connection based on two-dimensional node matrix in cloud environment Tao Yongzai Zhou Mengxue Benji Wei Lin Cao Yunjie with the advent of the "Big Data" era, distributed data processing has been widely used and developed. In cloud computing, the complexity processing requirements are increasing, and data analysis usually needs to cross multiple datasets. Therefore, an efficient multiple-table connection mechanism is urgently needed. The existing multi-table connection mechanism based on MapReduce adopts serial cascade to realize multiple connections of different data sets, and the operation is flexible but inefficient. This article in ...

A multi-device file synchronization algorithm in cloud environment Liu Shujun, Chang, Frankfurt Cloud Environment, the client and cloud show a dynamic star topology, the client anytime, anywhere online, off-line dynamic characteristics, so that maintaining user data in the consistency between multiple replicas becomes complex. In this paper, a real-time automatic file synchronization algorithm based on file metadata is proposed, and a cloud network client prototype program is realized by calling the open API provided by Peng Yun T disk and combining the synchronization algorithm presented in this paper. A multi-device file synchronization algorithm in cloud environment

1. What is cloud computing security? In the rapid development of the Internet today, the security of the network is an unavoidable problem, especially the various security threats to the business system of potential harm gradually magnified today, any IT system construction is difficult to ignore the existence of security problems. and a variety of private cloud or public cloud of data Center building, safe, efficient business delivery is its success and necessary requirements. Every moment of the construction of the link, including the physical environment of the building process, cloud computing business system construction, server storage resource pool deployment, as well as the operation of the system operations, are security risks of the dive ...

At present, what is cloud computing, what kind of platform belongs to the cloud computing platform, and so on cloud computing related issues, different hardware and software manufacturers have their own different understanding, have their own different definitions. The cloud computing platform they offer is also vastly different. When it comes to cloud computing, people always think of these things: high scalability (scalability), cost savings (saving), on-demand (use on Demand), and so on. Let's give it a few of the myriad things that cloud computing brings ...

From the delivery of applications to security and monitoring, it looks as if everything is beginning to shift to the cloud environment, and the IT industry is facing an era of chaos and hardship that has never been before. The good news is that more and more tools are available on the market, and the bad news is that you can no longer solve all your problems by choosing a vendor like before. With this shift in mind, last week's Interop Assembly returned to the most basic topic of interoperability. Such as Interop this large-scale exhibition total ...

Research on enterprise production management model under cloud manufacturing environment The main contents of Zhejiang University Yang Yi are as follows: The first chapter is introduction. This paper mainly discusses the research background, purpose and significance of the thesis, introduces the research status of the related technology at home and abroad, as well as the main research contents and chapter arrangement of the paper. Chapter two introduces the enterprise production management mode under the cloud manufacturing environment. This paper introduces the production management mode of traditional enterprise, then gives the overall process of enterprise production under cloud manufacturing environment and the detailed design of each process module. Chapter Three is the decomposition and modeling of project tasks in cloud manufacturing environment. Main ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest Cloud host technology Hall 1." Background to introduce new features of the site or the new strategy in the station after the development of the before the full flow on the line to evaluate the pros and cons of new features or new strategies, the common evaluation method is B test, the practice is to sample a total of two small flow, respectively, the new branch of policy and the old Strategy Branch, through the comparison of these two streams ...

With the rapid development of internet economy, e-commerce has become an epoch-making business revolution, which has led to the profound change of residents ' living consumption, enterprise production and operation and social and commercial circulation. 　　E-commerce will completely subvert the operating environment that traditional commercial banks rely on to survive, and promote the transformation and innovation of bank business model and management idea. To meet the environmental challenges of e-commerce new Economy (310358, fund bar), innovate the development mode of e-commerce and reconstruct the pattern of e-commerce market, has become a strategic move for commercial banks to enhance their core competitiveness and promote their business Operation transformation. How to take the lead in seizing opportunities and turning ...

In order to improve the deployment speed of virtual machines in a cloud environment, we first need to consider parallel deployments and collaborative deployments. First look at the parallel deployment, which is to deploy the virtual machines to multiple physical machines at the same time, ideally, parallel deployments can multiply the time required for deployment, but this approach is susceptible to network bandwidth and cloud deployment server read and write capabilities. For example, in the case of limited network bandwidth, the cloud deployment server runs multiple deployment tasks at the same time, these tasks compete for network bandwidth, and when network bandwidth is full, deployment speed can no longer be further improved ...