SECURE FILE STORAGE ON CLOUD USING HYBRID CRYPTOGRAPHY

SECURE FILE STORAGE ON CLOUD USING HYBRID CRYPTOGRAPHY

ABSTRACT

 The Digital Revolution has brought with it an exponential growth in the usage of digital computation and along with it, the start of the Information Era. Furthermore, companies are expanding globally and opening offices at various locations across the globe. This has brought the need to make access to data from any location possible and feasible. This is where Cloud Computing and Storage comes into the picture. But with cloud storage comes security risks and data leak possibilities. Hence data security is a very important component of cloud storage. This study presents a review of a system which stores data on the cloud after encrypting it. Hence even if a security breach were to take place, the attacker would get access to encrypted data, which would still ensure data confidentiality. In this system, the user uploads a file to the portal, it gets encrypted and then uploaded onto the cloud. The user can then download their files from the cloud through the portal, which results in the decrypted (or original) file getting downloaded to their local computer. The system also uses two different hybrid approaches for encryption and decryption, namely AES and RSA algorithms, and AES and Blowfish algorithms, and shows a comparative study on the difference between the two approaches. SECURE FILE STORAGE, HYBRID CRYPTOGRAPHY

                                                      

 

CHAPTER 1 INTRODUCTION

CHAPTER ONE

INTRODUCTION

1.1     Introduction

Cloud Computing is a new paradigm of computing which has evolved in recent times, it’s a platform where hardware and software are delivered to users in a manner that resembles the way utilities such as electricity are delivered to households today (Flanagan, 2002). Cloud computing is an online form of computing where users can access applications (especially, Web-Based Applications) via a web-browser, while the application is installed and stored on a data center which comprises several servers.

• BACKGROUND OF THE STUDY

Traditional storage devices such as flash drives, hard disks and other kinds of physical storage devices are slowly becoming obsolete. The reason for this is that, on the business front, global expansion of companies require data to be shared amongst employees for collaborative working. On the user’s personal usage front, many users nowadays have multiple devices, such as one or more mobile/cell phones, tabs, laptops, desktop PCs et cetera. Hence cloud storage provides a way to access one’s personal data across all of one’s personal devices. Hence more and more people are shifting towards the more convenient option of cloud for storing their data. The ability to access files from remote locations using just a stable internet connection gives cloud an edge over other storage options.

How cloud storage works is that it stores the users’ confidential files on the storage servers, and users have the freedom of accessing their files from any location. All of a user’s devices such as tablets, laptops, mobile phones, desktop PCs and other technology gadgets can be used to store and access files stored on the cloud. Businesses can also benefit from cloud storage by being able to improve productivity considerably with the help of cloud storage. Cloud storage thus eliminates the need for carrying physical storage devices.

Another advantage of cloud storage is that users can store all kinds of files, such as text documents, images, spreadsheets, videos, PDFs et cetera. Various types of features are provided by different cloud storage providers. Additionally, cloud storage provides a backup option as well. If data on one’s local storage gets deleted accidentally, or if one loses the physical storage device such as a hard disk, then one’s data can be permanently lost. Also, physical storage devices have a fixed storage capacity, and more the storage capacity, the more it costs. Compatibility or detection issues could possibly arise with physical storage devices. Another issue is that a virus that could inhabit one’s computer can move to the flash drive and infect its digital data, or loss due to server failures, employee mistakes, natural disasters are also possible. From the infrastructure point of view, the cost of buying new servers, installing them, and maintaining them is also much higher than the alternative of cloud storage. Buying new servers, installing them, and maintaining them. Additionally, this helps in cutting back on one’s energy bill and becoming eco-friendlier. AD secure file storage, secure file storage online, secure file storage cloud, most secure storage units, safe with file storage, most secure file storage, secure file storage android

Cloud storage also help in immediate data exchange, thus giving access to multiple people. This makes this service a perfect tool for both distant and in-house work. Thus, online cloud storage and is beneficial for all types of businesses. Cloud storage is a more cost-efficient platform that does not require a huge investment and it can be actively used for connecting and collaborating with clients and employees. Hence more and more users are turning to cloud storage, making it a very popular alternative to traditional storage options. Cloud in computing domain describes the use of a collection of services, applications, information, and infrastructures which comprises pools of virtualization technology, disk storage, inexpensive servers, and network. These components can be rapidly orchestrated, provisioned, implemented, commissioned and scaled up or down providing for an on-demand utility-like model of allocations and consumption. As the users increasingly demand to satisfy their immediate information needs, the cloud has become a preferred platform to deliver such information. However, in cloud computing, cloud does not just only include data pipes, routers, and servers, it also involves providing services and capabilities to build applications. The importance of cloud computing has emerge as the bedrock of modern information system which can neither be overemphasized nor overlooked. An enterprise cloud computing is a controlled, internal place that offers rapid and flexible provisioning of compute power, storage, software, and security services. SECURE FILE STORAGE, HYBRID CRYPTOGRAPHY

In these age of complex business intelligence and big-data enterprise, enterprise cloud computing has corroborate with enterprise web applications which now serves as core business model that manages full-fledged collaborative workflow-based applications, spanning multiple individuals, small scale business, IT inclined and non-inclined large scale businesses as well as organizations. Cloud enables enterprises to unleash their potential for innovation through greater intelligence, creativity, flexibility and efficiency, all at reduced cost.

• STATEMENT OF THE PROBLEM

Cloud computing as a new innovation and ultimate solution for utility and distributed computing on Web Applications has been used by billions of users across the globe since its inception. Its implementation and impact cut across several fields, disciplines and businesses acrossthe globe. Nevertheless, cloud computing have been bedeviled by certain obstacles, the goal of this research study is to discern the factors affecting performance andprovide some solutions or guidelines to cloud users that might run into performance problems:

1. Integrity and protection of information deployed or stored in the cloud domain as oppose the traditional approach of information storage.
2. Ability to transform data from diverse sources into intelligence and deliver intelligence information to right users and systems.
3. The need for load balancing and traffic control when multiple users access the cloud service.
4. Need to address the scalability issue: Large scale data, high performance computing, automaton, response time, rapid prototyping, and rapid time to production.
5. Security, privacy and trust issues from the end users of cloud services.
6. Adopting cloud as a platform to enhance a vibrant business intelligence environment.

• OBJECTIVE OF THE STUDY

The aim of the research work is to design a cloud based document management and resource sharing system that provides solution to factors affecting performance, security and reliability in the cloud computing domain. This research study has the following objectives:

1. To offer a controlled approach for the problem of security, privacy and trust issues from the end users of cloud services.
2. To offer benchmark for the amount of resources users can store in the cloud service which solves the problem of scalability and load balancing.
3. To offer provision of on-demand utility to users of the cloud service at a quick response time.

• SIGNIFICANCE OF THE STUDY

The application of Information technology cuts across every facet of human endeavor (Izevbizua, 2013).  The significance of this research study is:

1. It offers guarantee on the quality of cloud computing services.
2. It offers an easy information sharing platform for the users.
3. It highlights and solves the problem of multi-tenancy (where a single application instance may serve hundreds of users or subscribers).
4. It offers a measured security of information stored in the cloud domain.

• SCOPE OF THE STUDY

The study focuses on the design and implementation of a cloud based document management  processing system

• LIMITATION OF THE STUDY

This study is constrained by certain factors which constitute limitations of the study:

1. The problem of data size limit assign to subscribers of the system may not allow users to deploy as much resources as they desire to store and share among other users.
2. The expense of acquiring a space on the cloud service provider was tasking initially. This lead to the concentration of the study to some restricted scope.
3. The measure of resource security within the cloud domain may not suit users; which gives room for improvement of resource security in further research

1.7   ORGANIZATION OF THE WORK

This research study is organized in the following chapters:

1. Chapter one deals with the Introduction, which includes Background of Study, Statement of problems, Aims and Objectives, Significance of Study, Limitations of Study, Organization of Study, Definition of Terms.
2. Chapter two reviews related literature of the research study.
3. Chapter three highlights the system analysis and design.
4. Chapter four deals with the implementation of the system developed.
5. Chapter five gives an exhaustive conclusion of the research work.

 DEFINITION OF TERMS

1. Server: It is any combination of hardware or software designed to provide services to clients.
2. Client: It requests and consumes the services provided by another having the role of server.
3. Virtualization: It is the ability to separate the OS from the hardware that operates it.
4. Private Cloud: It is an approach for designing, implementing and managing servers, applications and data center resources by reducing complexity, increasing standardization and automation, and provide elasticity.
5. Web Application: It is any software application that depends on the Web for its correct execution.
6. PHP: Hypertext Preprocessor is a server-side scripting language designed for web development as well as general purpose programming language.
7. DBMS: Database Management System is a computerized record keeping system that comprises collection of data organized to service many applications at the same time.

SECURE FILE STORAGE ON CLOUD USING HYBRID CRYPTOGRAPHY, SECURE FILE STORAGE, HYBRID CRYPTOGRAPHY

Sharing is caring!