Top PDF Security. TO Evolving. Data Center Security. Virtualization and Cloud Computing

Security. TO Evolving. Data Center Security. Virtualization and Cloud Computing

Security. TO Evolving. Data Center Security. Virtualization and Cloud Computing

Hybrid clouds, which are a combination of public and private clouds, enable mission-critical data to be maintained securely in the private cloud, while less critical data can be placed in the public cloud. The public cloud portion can also be used to provide additional computing resources as needed that do not involve mission-critical data. Hence, the hybrid cloud can present similar issues to those of public cloud and private cloud computing, with the added flexibility of being able to choose which type to use for various different resource, control, and security needs. Encryption can be a great equalizer here because if data is effectively encrypted, it may be storable securely in either a public or private cloud. This allows enterprises to select a cloud deployment based on resources and cost savings rather than based on security concerns.
Show more

15 Read more

SECURITY ISSUES AND ALGORITHMS IN CLOUD COMPUTING

SECURITY ISSUES AND ALGORITHMS IN CLOUD COMPUTING

There are a number of security issues/concerns associated with cloud computing but these issues fall into two broad categories: security issues faced by cloud providers (organizations providing software, platform, or infrastructure-as-a- service via the cloud) and security issues faced by their customers[5]. The responsibility goes both ways, however: the provider must ensure that their infrastructure is secure and that their clients’ data and applications are protected while the user must ensure that the provider has taken the proper security measures to protect their information, and the user must take measures to use strong passwords and authentication measures.
Show more

6 Read more

DATA SECURITY IN CLOUD COMPUTING

DATA SECURITY IN CLOUD COMPUTING

Sensitive data in a cloud computing environment emerge as major issues with regard to security in a cloud based system. Firstly, whenever a data is on a cloud, anyone from anywhere anytime can access data from the cloud since data may be common, private and sensitive data in a cloud. So at the same time, many cloud computing service consumer and provider accesses and modify data. Thus there is a need of some data integrity method in cloud computing. Secondly, data stealing is a one of serious issue in a cloud computing environment. Many cloud service provider do not provide their own server instead they acquire server from other service providers due to it is cost affective and flexible for operation and cloud provider. So there is a much probability of data can be stolen from the external server. Thirdly, Data loss is a common problem in cloud computing. If the cloud computing service provider shut down his services due some financial or legal problem then there will be a loss of data for the user. Moreover, data can be lost or damage or corrupted due to miss happening, natural disaster, and fire. Due to above condition, data may not be accesses able to users. Fourthly, data location is one of the issues what requires focus in a cloud computing environment. Physical location of data storage is very important and crucial. It should be transparent to user and customer. Vendor does not reveal where all the data‘s are stored.
Show more

9 Read more

CLOUD COMPUTING DATA SECURITY: A REVIEW

CLOUD COMPUTING DATA SECURITY: A REVIEW

Abstract: The ever-growing computing and networking technologies today are enabling a fundamental paradigm shift in how people deploy and deliver computing services: computing outsourcing. While moving data and computing services to the cloud a like infrastructures promises to provide unprecedented benefits like ubiquitous network access, rapid resource elasticity, minimal management overhead, etc., it simultaneously deprives users of direct control over the systems that manage their data and applications, raising security and privacy the primary obstacles to the public cloud adoption. So Data security is one of the biggest concerns in adopting Cloud computing. In Cloud environment, users remotely store their data and relieve themselves from the hassle of local storage and maintenance. However, in this process, they lose control over their data. Existing approaches do not take all the facets into consideration viz. dynamic nature of Cloud, computation & communication overhead etc. In this paper, we propose Data Storage Security by using Trusted Platform Module to achieve storage correctness incorporating Cloud’s dynamic nature while maintaining low computation and communication cost and ensure the security of static data. Keywords: Cloud computing, Encryption/decryption service
Show more

9 Read more

Data Security in Cloud Computing

Data Security in Cloud Computing

[6] Xueping Liu. Data security in cloud computing. In Proceedings of the 2012 International Conference on Cybernetics and Informatics, pages 801–806. Springer, 2014. [7] Puneet Mittal Meenakshi Pawar, Sukhwinder Sharmar. A secure frame-work for data security in cloud computing. In International Journal of Emerging Trends and Technology in Computer Science (IJETTCS), April 2014.

15 Read more

Improving Security Techniques for Shared Data in Cloud Computing

Improving Security Techniques for Shared Data in Cloud Computing

Authentication and Access Control (AAC) is the process of verification and confirmation on user’s identity to connect, to access and use the cloud resources. In enterprise computing, the credentials are stored in the server in the form of Active Directory (AD) or Lightweight Directory Access Protocol (LDAP).Authentication done virtually through private network in private cloud. In public cloud, customers use the internet to connect to CSP(Cloud Service Provider), applications from different users can co- exist with the same CSP(Cloud Service Provider) (resource pooling) and CSC(Cloud Service Consumer) can access the applications from anywhere through any devices. So In public cloud, authentication is too weak and without protection than private cloud . A Password-based authentication does not provide effective security for the public cloud. Passwords can be cracked using many methods such as a brute force attack, dictionary attack, phishing or social engineering attack. So it is very important that the CSP (Cloud Service Provider) should include highly secured authentication methods in a public cloud. Customers connected to cloud services in cloud computing through APIs and API’s are designed to accept tokens compare to passwords. In cloud computing, authentication applies to not only users but also to machines. Machines need to authorize certain automated actions like online backup, patching and updating systems and remote monitoring system. Since the cloud applications are accessed through various devices, there should be a strong authentication method like RSA token, OTP over the phone, smart card / PKI, biometrics, etc., for original identification confirmation and show their value.. This will enable identifiers and attributes with a strong level of authentication to be passed on to the cloud application and the risk decisions can be made for access management. There are a number of methods and standards available to avoid security issues related to AAC.
Show more

5 Read more

Data Integrity in Cloud Computing Security

Data Integrity in Cloud Computing Security

cloud computing. Example: E-mail. d. Third Party Auditor (TPA) or Verifier: The TPA or Verifier has expertise and capabilities (that users may not have) and verifies the integrity of outsourced data in cloud on behalf of users. The TPA could release an audit report to user. Cloud Computing Service Models The cloud service provider (CSP) offered its customers with kind of services and tools, which are: a. Software as a Service (SaaS): involves using their cloud infrastructure and cloud platforms to provide customers with software applications. In this service, the user can take advantage of all applications. The end user applications are accessed by users through a web browser, such as Microsoft SharePoint Online. The need for the user to install or maintain additional software is eliminated [12]. b. Platform as a Service (PasS): enables customers to use the cloud infrastructure; as a service plus operating systems and server applications such as web servers. The user can control the development of web applications and other software and which use a range of programming languages and tools that are supported by the service provider [12]. c. Infrastructure as a Service (IaaS): the registered user may access to physical computing hardware; including CPU, memory, data storage and network connectivity of the service provider. IaaS enables multiple customers referred to as “multiple tenants” using virtualization software. The user gains greater flexibility in access to basic infrastructure [12]. d. Security as a service (SecaaS): categorize the different types of Security as a Service and to provide guidance to organizations on reasonable implementation practices [13]. 3.2 Deployment Models of Cloud Computing Cloud Computing can be run on different deployment models. The deployment model is selected depending on the user
Show more

7 Read more

Implementation of Data Security in Cloud Computing

Implementation of Data Security in Cloud Computing

privacy. One way is to use authentication techniques such as user names and passwords. Another is to employ an authorization format -- each user can access only the data and applications relevant to his or her job. Cloud has centralized server administration system Centralized server administers the system, balances client supply, adjusts demands, monitors traffic Here, all the data are backed up at multiple locations. In cloud computing, it is very common to store data of multiple customers at one common location. Cloud computing should have provide proper techniques for data security and confidentiality. Cloud computing is cost-effective. Here cost is greatly reduced, Maintenance cost is reduced. The data is secured through SSL; AES based Cryptography, Server clustering and Server Load balancing.
Show more

6 Read more

Security of Data Dynamics in Cloud Computing

Security of Data Dynamics in Cloud Computing

Abstract— Cloud Computing refers to the many different types of services and applications being delivered in the internet cloud, and the fact that, in many cases, the devices used to access these services and applications do not require any special applications. Cloud Computing has been moves the application software and databases to the centralized large data centers, where the management of the data and services may not be fully trustworthy. This brings the problem of ensuring the integrity of data storage in Cloud. Cloud computing share distributed resources via network in the open environment thus it makes security problem. we consider the task of allowing a third party auditor (TPA), on behalf of the cloud client, to verify the integrity of the dynamic data stored in the cloud. The introduction of TPA eliminates the involvement of the client through the auditing of whether his data stored in the cloud are indeed intact, which can be important in achieving economies of scale for Cloud Computing. The support for data dynamics via the most general forms of data operation, such as block modification, insertion, and deletion, is also a significant step toward practicality, since services in Cloud Computing are not limited to archive or backup data only. While prior works on ensuring remote data integrity often lacks the support of either public auditability or dynamic data operations, this paper achieves both. We first identify the difficulties and potential security problems of direct extensions with fully dynamic data updates from prior works and then show how to construct an elegant verification scheme for the seamless integration of these two salient features in our protocol design. In particular, to achieve efficient data dynamics, we improve the existing proof of storage models by manipulating the classic Merkle Hash Tree construction for block tag authentication.
Show more

6 Read more

ADVANCED DATA SECURITY IN CLOUD COMPUTING

ADVANCED DATA SECURITY IN CLOUD COMPUTING

Abstract: The ever-growing computing and networking technologies today are enabling a fundamental paradigm shift in how people deploy and deliver computing services: computing outsourcing. While moving data and computing services to the cloud alike infrastructures promises to provide unprecedented benefits like ubiquitous network access, rapid resource elasticity, minimal management overhead, etc., it simultaneously deprives users of direct control over the systems that manage their data and applications, raising security and privacy the primary obstacles to the public cloud adoption. So Data security is one of the biggest concerns in adopting Cloud computing. In Cloud environment, users remotely store their data and relieve themselves from the hassle of local storage and maintenance. However, in this process, they lose control over their data. Existing approaches do not take all the facets into consideration viz. dynamic nature of Cloud, computation & communication overhead etc. In this paper, we propose Data Storage Security by using Trusted Platform Module to achieve storage correctness incorporating Cloud’s dynamic nature while maintaining low computation and communication cost and ensure the security of static data.
Show more

6 Read more

Enhancing Data Security in Cloud Computing Growth Security

Enhancing Data Security in Cloud Computing Growth Security

Cloud computing is an emerging technology which recently has drawn significant attention from both industry and academia. It provides services over the internet, by using cloud computing user can utilize the online services of different software instead of purchasing or installing them on their own computers. Cloud computing utilizes three delivery models by which different types of services are delivered to the end user. The three delivery models are the SaaS, PaaS and IaaS which provide infrastructure resources, application platform and software as services to the consumer. Data security is a major concern for users who want to use cloud computing. This technology needs proper security
Show more

5 Read more

 Architectural Data Security in Cloud Computing

 Architectural Data Security in Cloud Computing

Cloud Computing i s the name given to the recent drift i n computing overhaul provision. This development has seen the technological and cultural shift of computing service provision from being provided locally to being provided remotely by third-party service providers [1].The use of encryption schemes is often describe through an analogy depict the transmission on a plain-text message M from one entity, A to another entity, B. Here A wishes to ensure that only B will be clever to read M. This analogy has persist to its ability t o describe a prevalent communication style, that of uncast communication. The consumer has effectively lost control over how their data is human being stored, common and used, and also over the security used to protect their data. Moreover, it can be the case that a secret employee of the service provider will have access to your data for legitimate purposes but will abuse this power for their own means [9].
Show more

5 Read more

DATA SECURITY IN CLOUD COMPUTING

DATA SECURITY IN CLOUD COMPUTING

Everyone wants to use the cloud for cost savings and for new business models. But for cloud security, it is very important to understand the different threats that come into play, says Derek Tumulak. Cloud is a promising technology for the future IT applications. The main requirement of an organization was reducing data storage and processing cost. The analysis of data and information are the most important tasks in all organizations to make the decisions. So, they will not be transferred by organization to the cloud till there is a trust between the cloud service providers and consumers. One of the major concerns of this paper was data security and its threats, and solutions in cloud computing. Data in different states have been discussed along with the techniques which are efficient for encrypting the data in the cloud. The study provided an overview of block cipher, stream cipher and hash function which are used for encrypting the data in the cloud whether it is at rest or in transit.
Show more

6 Read more

A SURVEY ON DATA SECURITY IN CLOUD COMPUTING

A SURVEY ON DATA SECURITY IN CLOUD COMPUTING

The security plays a very important role in cloud computing. Most of the cloud security is using the cryptographic algorithms. It is a form of coded data or non-readable format of the information for securing the data from the hackers. In these cryptographic techniques, a single level encryption algorithm used for securing the data but unauthorized person try to crack the data easily. It uses symmetric and asymmetric algorithm is used for encrypt and decrypt message.

6 Read more

Implementing Data Security in Cloud Computing

Implementing Data Security in Cloud Computing

From the perspective of data security, which has always been an important aspect of quality of service, Cloud Computing inevitably poses new challenging security threats for number of reasons. Firstly, traditional cryptographic primitives for the purpose of data security protection cannot be directly adopted due to the users’ loss control of data under Cloud Computing. Therefore, verification of correct data storage in the cloud must be conducted without explicit knowledge of the whole data. Considering various kinds of data for each user stored in the cloud and the demand of long term continuous assurance of their data safety, the problem of verifying correctness of data storage in the cloud becomes even more challenging. Secondly, Cloud Computing is not just a third party data warehouse. The data stored in the cloud may be frequently updated by the users, including insertion, deletion, modification, appending, reordering, etc. To ensure storage correctness under dynamic data update is hence of paramount importance. However, this dynamic feature also makes traditional integrity insurance techniques futile and entails new solutions. Last but not the least, the deployment of Cloud Computing is powered by data centers running in a simultaneous, cooperated and distributed manner. Individual user’s data is redundantly stored in multiple physical locations to further reduce the data integrity threats. Therefore, distributed protocols for storage correctness assurance will be of most importance in achieving a robust and secure cloud data storage system in the real world.
Show more

6 Read more

VIRTUALIZATION AND CLOUD COMPUTING THE JOURNEY TO THE CLOUD. Data Center Security

VIRTUALIZATION AND CLOUD COMPUTING THE JOURNEY TO THE CLOUD. Data Center Security

To give enterprises full access to the agility and cost savings provided by virtualization and cloud computing, a tightly integrated security solution must cover physical and virtual endpoints and servers. Security must be “light & lean” on all endpoints. Scans must not interfere with the real tasks at hand, and updates must be efficiently distributed without taking over local networks. For example, with Smart Protection Network enabled, Trend Micro endpoint security does not deploy signature files to physical or virtual endpoints. This avoids the risk of update-induced AV-storms, and also minimizes the memory footprint since pattern files are not stored on every endpoint or virtual machine (VM).
Show more

16 Read more

Multimedia Cloud Computing Security an Evolving Trend: Rudimentary Essentials

Multimedia Cloud Computing Security an Evolving Trend: Rudimentary Essentials

Cloud computing is a new technology that is helpful both in academia as well as industry. Advancement in cloud computing leads to the various available services like Iaas, Paas, Saas etc [1]. As there are millions of users, cloud computing has potential in our society. The last decades have witnessed various popularity in multimedia content services i.e. image transferring, online conferencing etc. Furthermore, due to a growing amount of businesses/organizations rearranging in the direction of utilizing assets in the Cloud, there is inevitability for guarding the information of several clients [2]. Some most important trials which are being confronted through Cloud Computing are to safe and sound, defend and handle the information that is the assets of the client. The further down exemplified are the two foremost circumstances that we have concentrated in the direction of understanding the need of security of the information and data in the Cloud [3].
Show more

7 Read more

Healthcare Data Security in Cloud Computing

Healthcare Data Security in Cloud Computing

ABSTRACT: Modern healthcare sectors need to create an environment which reduces time consuming efforts and other costly operations to obtain a patient's complete medical record and uniformly integrates this heterogeneous collection of medical data to deliver it to the healthcare authorities. Electronic health records (EHRs) have been widely adopted to enable healthcare providers and patients to create, manage and access healthcare information from any place, and at any time. Cloud services provide the necessary infrastructure at lower cost and better quality. Cloud computing when used in Healthcare sector reduces the cost of storing, processing and updating with improved efficiency and quality. But the security of data in the cloud is not satisfactory today. The electronic health record consists of images of the patient‟s record which is highly confidential. The EHRs in the healthcare includes the scan images, DNA reports, X-rays etc., which are considered as the patients private data. Providing security for a huge volume of data with high efficiency is required. This paper introduces a new mechanism in which the EHR images can be secured efficiently and the private data are preserved for later use. Since most of the confidential data are in the form of images, additional care must be taken to secure these images. This is done by reducing the images into pixels and then encrypting those pixels. After the encryption, the single encrypted file is divided into n files and they are stored in the cloud. The original data is obtained by merging the n divided files from the cloud and then decrypting that merged file using the private key. This key is made visible only to the authorised persons as required by the hospital.
Show more

9 Read more

SECURITY MANAGEMENT AND FUTURE CLOUD  DATA CENTER IN CLOUD COMPUTING

SECURITY MANAGEMENT AND FUTURE CLOUD DATA CENTER IN CLOUD COMPUTING

Cloud computing is a disruptive technology with profound implications not only for Internet services but also for the IT sector as a whole. The cloud is the internet where files are uploaded to and downloaded from.A data center may be concerned with just operations architecture or it may provide other services as well.The main purpose of a data center is running the applications that handle the core business and operational data of the organization.Data centers are also used for off site backups. Companies may subscribe to backup services provided by a data center. This is often used in conjunction with backup tapes . Cipher Cloud eliminates the inherent security and privacy risks of cloud computing. Your business never loses control of its sensitive data, yet you can achieve the full benefits of cloud computing. TPM (Trusted Platform Module) is a computer chip that can securely store artifacts used to authenticate the platform (your PC or laptop). Trusted Gateway takes a revolutionary approach to protecting sensitive data before it leaves an organization’s secure enterprise network. Second section of this paper provide solution for this insecurity is privacy manager for cloud computing, which reduces the risk. the privacy manager uses a feature called obfuscation, The obfuscation method uses a key which is chosen by the user and known by the privacy manager, but which is not communicated to the service provider. Thus the service provider is not able to de-obfuscate the user’s data, during the next five years, the DCFuture will contain ever larger numbers of ever smaller components offered by diverse vendors, but based on common standards. Although the complexity of the basic building blocks will decrease, the complexity of integrating them into services and solutions the Internet, Web, and especially Web services are not only creating those challenges, but also offering the solution to those challenges during the next 5-10 years. The central focus of this Paper is to describe the evolution of the data center of the future (DCFuture), the forces driving that evolution, and its impact on produce Four fundamental economic forces have shaped the data center up until now and will continue to • Commoditization:: The standardization and specialization of function, with the progressive shift in focus toward quality, complementary products and services, and price.
Show more

15 Read more

Data Security Issues in Cloud Computing

Data Security Issues in Cloud Computing

The layers of the cloud's infrastructure have their own security systems in place, but it still know absolutely clear how the three security systems interact or what is the full extent of the interaction. Again this is a grey area as it also depends on what kinds of applications have been written and which service provider is providing the service. Cloud security is basically about risk management. There are many challenges in the security system still, and cloud computing is evolving rapidly to find the solution to all the challenges that are still apparent in cloud computing security.
Show more

10 Read more

Show all 10000 documents...