Introduction to Cloud Computing
The very first thing that comes to the mind when people ask about the cloud, mostly people mistakes it with the actual cloud or relates it to the weather. It is actually used very commonly in the IT field. Cloud computing is quite a old concept of storing data. Cloud Computing distributes computing on internet and delivery of computer services over the internet (Han et al., 2016). IT refers to the configuring, manipulating and accessing of online applications, which offers online storage, infrastructure and application. There are relatively two working model of the cloud computing: The Deployment model and The Service Model. Service model is also called the reference model. Service model is divided in to IaaS, PaaS and Saas service cloud. Whereas the deployment model consists of Private cloud, Public cloud, Communication cloud and Hybrid cloud infrastructure that has been provisioned for the exclusive usage of the organization that are incorporated with multiple consumers. This model can be managed by the organization itself or by any other third party or combination of both of them. Cloud Computing involves the use of internet hosting in place of using local servers for easier access to data and services. This technological feature includes multitenancy, elasticity and potential for the maximum utilization of resources.
- Cloud computing has several business advantages for storing, computing scalability for distributing the resources globally. Despite of the benefits of this cloud computing there are several privacy and security issues. The system providers must be sufficient to guard against the serous threats for the cloud computing data security. The common security threats to the cloud are: Data Breaches, Poor User Access Management, System Vulnerabilities, Insecure Interfaces and APIs, Malicious Insiders, Account Hijacking, Advanced Persistent Threats, Data Loss, Insufficient Due Diligence, Fraudulent Use of Cloud Services, Denial of Service and Shared Technology Issues. Some of the commonly research questions for security of cloud computing are:
- What are the main issues related to privacy of cloud computing?
- What does cloud computing benefits us?
- What are the ways to overcome the security and privacy issues for protecting the data?
As discussed in a research papers: 1) When a system involves cloud computing, it becomes a major factor to protect the data. Privacy of the data is something that must not be neglected as per the authors. It is vital to make sure to whom we are providing our personal data and the later does not exploit our rights. There are risks where the non-public data are sent to the clouds and must be used in an alternative function. The paper (Hindrance in the Security of Cloud Computing) further analyzing and discussing about the threats of cloud computing that includes Internal threats such as the Rouge administrators and Cloud Administrators, External threats such as Data loss, Abusing and misusing of clouds and Service hijacking. In the end it has been mentioned that the cloud service usage is still debatable, because of the major threats. Some of the new techniques devised with addition to advance the computational issues in security (Nanda et al., 2016). 2) In the second research (On Current Trends in Security and Privacy of Cloud Computing) it has been analyzed that the computer infrastructure and network is increasing with a tendency to become more sophisticated. Key management, cryptography, identity and access management hence are the major tools for the security requirements of cloud computing (Sahin, 2013). 3) Another research (Enhancing Data and Privacy Security in Mobile Cloud Computing through Quantum Cryptography) displays the QCMC proposal of models that effectively enhances the data privacy of the users in mobile cloud computing environment by quantum cryptography technology. This technology can be used by users to communicate with cloud application after the process of authentication. It has been proved by experimenting that the proposed QCMC model can be effectively implemented to the quantum cryptography in mobile cloud computing environment that will protect the privacy and security of the mobile data users (Han et al., 2016).
The Working Models of Cloud Computing
Cloud computing has been known to increase the competiveness by cost reduction, increase in flexibility, elasticity and utilization of optimal resources. Some of the very common uses of cloud to enhance the ability to achieve the business goals are:
- Infrastructure as a Service (IaaS) and Platform as a Service (PaaS)
- Private cloud and Hybrid cloud
- Test and development
- Big data analytics
- File storage
- Disaster recovery
- Backup
The dangers and equivocalness as of now characteristic to the cloud demonstrate that more development is required, for the most part with respect to suppliers. Assertions amongst suppliers as well as the customers should be particular about these issues, particularly unapproved utilize. Governments need to sanction laws that are intended to remain pertinent and secure buyers in the age of the web. Rather than endeavoring to authorize laws from a prior time, new laws must be made which are intended to oblige the vulnerabilities of distributed computing and across the board web use when all is said in done. Cloud Computing disposes of a considerable lot of the potential risks and threats that has already been characteristic. It gives a stage to sharing data comprehensively, during a time where most business includes worldwide components. Alongside cell phones, and progressively dependable web, distributed computing is another progression in pulling down separation between the business and collaboration.
As per the survey feedback received one asks “How does the cloud service sustain disasters affecting data centers or connections, and which data is backed up and where?”, as per the record the business thus has own data centers, operating in the cloud service with other providers. Cloud disaster recovery is implemented generally when there is an urgent requirement of the service. Cloud organizations are not just about accommodating accumulating, accessible by various devices, yet consolidate basic favorable circumstances, for instance, more worthwhile correspondence and minute multi-point joint exertion. Customary reinforcements are produced using a server farm to a distributed storage vault. On account of information misfortune or a broadened blackout (absence of administration) by a seller, another duplicated virtual server can be propelled from the option physical area to deal with information and application prerequisites until the point when the first is set up back. There is a requirement of Cloud Disaster Recovery because Cloud DR has a numerous benefits for all, which have: Lower cost and attainable disasters recovery implementation, data stability doubts must be removed and has the access from a single clod service provider, reduction of vendors locked-in and meeting the industrial laws and regulations. The main keys by which we can analyze the successful implementation of cloud recovery are: by analyzing the disaster recovery requirements, comparing the vendors by advertising services having service-level agreement and creating a cloud disaster recovery policy training the employees and testing the server regularly. After recovery the data is put into the server for further implementation. Along these lines, a comparative examination needs to consider not only the threats of securing data in better places (on premises versus the cloud) yet also the risks when on premises-data set away on premises – e.g. a spreadsheet – is informed to various individuals for their responsibilities, against the security issues of a spreadsheet set away in the cloud and open to composed exertion between those individuals.
Security Risks Involved in Cloud Computing
In the second feedback it was asked “How does the cloud provider manage network and information security risks related to the cloud service?” Hazards are generally dependable to the connection over the greater business opportunity and craving for disasters, in some of the cases there are chances to repair by the circumstances eventually. The danger of utilization of the distributed computing are ought to be contrasted to the risks of the remaining along with the customary arrangements like desktop-based models. The level of disasters will be large as compared to others and will be having different fundamentals according to the type of cloud design to be considered.
Hence, the security issues in the field of cloud computing the zone of distributed computing are dynamic territory of research and experimentation. Different issues are recognized one of which is the security of client information and applications. Cloud administrations are accessible to accomplish security with the changing procedures and techniques. To address the test of choosing one of the cloud benefits in view of the client prerequisites of security, an assessor instrument is proposed. Thus the cloud services are hence analyzed and evaluated by the trusted values and are in the process of improvement.
References
Mishra, A., Mathur, R., Jain, S., & Rathore, J. S. (2013). Cloud computing security. International Journal on Recent and Innovation Trends in Computing and Communication, 1(1), 36-39.
Almorsy, M., Grundy, J., & Müller, I. (2016). An analysis of the cloud computing security problem. arXiv preprint arXiv:1609.01107.
Ryan, M. D. (2013). Cloud computing security: The scientific challenge, and a survey of solutions. Journal of Systems and Software, 86(9), 2263-2268.
Verma, D., & Mahajan, E. K. (2014). To Enhance Data Security in Cloud Computing using Combination of Encryption Algorithms. International Journal of Advances in Science and Technology (IJAST) Vol, 2.
Rittinghouse, J. W., & Ransome, J. F. (2016). Cloud computing: implementation, management, and security. CRC press.
Khalil, I. M., Khreishah, A., & Azeem, M. (2014). Cloud computing security: a survey. Computers, 3(1), 1-35.
Shahzad, F. (2014). State-of-the-art survey on cloud computing security Challenges, approaches and solutions. Procedia Computer Science, 37, 357-362.
Wei, L., Zhu, H., Cao, Z., Dong, X., Jia, W., Chen, Y., & Vasilakos, A. V. (2014). Security and privacy for storage and computation in cloud computing. Information Sciences, 258, 371-386.
Sahin, S. (2013, October). On current trends in security and privacy of cloud computing. In Application of Information and Communication Technologies (AICT), 2013 7th International Conference on (pp. 1-5). IEEE.
Zhao, F., Li, C., & Liu, C. F. (2014, February). A cloud computing security solution based on fully homomorphic encryption. In Advanced Communication Technology (ICACT), 2014 16th International Conference on (pp. 485-488). IEEE.
Nanda, M., Tyagi, A., Saxena, K., & Chauhan, N. (2016, January). Hindrances in the security of Cloud Computing. In Cloud System and Big Data Engineering (Confluence), 2016 6th International Conference (pp. 193-198). IEEE.
Han, J., Liu, Y., Sun, X., & Song, L. (2016, August). Enhancing data and privacy security in mobile cloud computing through quantum cryptography. In Software Engineering and Service Science (ICSESS), 2016 7th IEEE International Conference on (pp. 398-401). IEEE.
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