But there have been attacks on hot-shot cloud providing companies such as Google, and Dropbox(1). The various cloud providers claim that they provide highly secure cloud storage. The consumer plays no role in securing the data. The Cloud Providers assures the consumer of the Cloud that the data stored on their servers is safe. When it comes to security of the data stored in the Cloud Storage, it is entirely in the hands of the Cloud Providers. One of the main concern of cloud computing is the security of the Cloud Storage. The main motive of the Cloud Providers is to provide these services in a virtualized manner. The Internet users rely heavily on the Cloud Computing for various computing resources. This lead to the rise of a new concept, the Cloud Computing. The advent of Information Technology in day-to-day activities, the need for online services such as storage space, software, platforms etc. The aim of this paper is to provide an overall view of cloud computing with the aim to highlight the possible security issues and vulnerabilities connected with virtualization infrastructure. So it is necessary to build up proper security for cloud implementation. The main setback is that the insecure information flows as service provider can access multiple virtual machines in clouds. public domains, the major hurdles for cloud adoption are lack of security and access control. As the users deal their sensitive data to clouds i.e.

Salesforce, Amazon and Google are currently providing such services, charging clients using an on-demand policy. It is on-demand access to virtualized IT services and products. This new profitable paradigm for computing is an attractive, massive, large-scale investment that includes any subscription-based or pay-per-use service over the Internet. Cloud computing has become prominent IT by offering the business environment data storage capacity. After analyzing and comparing the performances, we have found SafeBox as the best client side encryption tool.Ĭloud computing is a promising computing standard where computing resources in large data center are made available as services over Internet. For performance measuring, we have calculated the upload time including both encryption and synchronization time for different sizes of data files for each tool. To find out the best tool, we have analyzed the performance of the selected tools namely AxCrypt, nCrypted Cloud, SafeBox, SpiderOak, Viivo. ' Which one provides more security among those tools? Which one consumes less time? In a single word, which one is the most effective? ' These are the open questions to the users, in present days. It's very important for users to know that which tool is the best for encrypting and storing data in the cloud. Client side encryption tools are becoming popular in the field of cloud computing every day. For ensuring data security several client side encryption tools have been developed and widely used with their own features and security schemes. Cloud service providers maintain authentication and authorization mechanism but there are no mechanisms for data security if the users' credentials are compromised. To access data globally and timely we are storing data into Cloud Storage Space. We are using information and program extensively day by day. Everything of our life is migrating into virtualization and we are depending on information technology.

Boxcryptor review 2017