Mobile Cloud Computing : A Virtual Pool Of Resources

Cloud computing has been the hottest buzzword in recent years and is continually to be one of the most popular felids in which not only IT industry but other industries like commence, geosciences, education, etc are interested and where hundreds of millions of dollars flood into. The whole term “cloud computing” is first introduced to the public media by Google ex-CEO Eric Schmidt on Search Engine Strategies Conferences in 2006 (Schmidt 2006). The generally accepted definition of cloud computing is developed by the U.S. National Institute of Standards and Technology (NIST):

Cloud computing also known as on demand computing is an internet based computing service. Rather than having your files and applications stored on your computer, you store them at a different location over the internet. Computer technology is moving very fast. Only few years ago, computers were very expensive and had very low hard disk drive space. People used to save their files on floppy disks, zip drives, etc. Today. Computing is being sent to the cloud. The faster internet connections have become, the more applications and storages have moved to the Cloud and out of internal servers and PCs. Such a move to cloud was not possible until now, because the internet broadband connectivity did not exist and now such existence makes cloud computing a true possibility for not only

In common usage, the term " cloud " is basically a metaphor for the Internet . Marketers have popularized the phrase " in the cloud " to refer to the software , platform and infrastructure that are sold " as a service" , ie remotely over the Internet . Typically , the seller has actual server energy-consuming products and services that host from a remote location , so the end user does not need to ; they can simply log on to the network without installing anything . The flagship model of cloud computing service , known as software as a service , platform as a service , and infrastructure as a service . Cloud services can be offered in a range of public,

In very short span of time, cloud computing has become integral part of everyone’s daily lives. It has been growing rapidly and has captured wide range of market. Cloud has given rise to new mobiles and tablets which run powerful applications. It maintains our friendship via those apps and stores our personal data. It has several of importance like:

Cloud Computing is an advanced paradigm with a lot of advantages, but its distinct features also create privacy and security issues. Cloud computing provides service model which is more efficient technology for business support. Cloud computing is in fact a service based approach which has changed almost every aspect of computing technologies. There are many threats to the cloud computing including security vulnerabilities and privacy issues.

C RYPTOGRAPHY T ECHNIQUES The cloud service providers should address the still open cloud security problems in order to encourage users to use this technology. The most important concerns are confidentiality, integrity and availability. In a complex and non-transparent system like cloud computing, it is difficult for a user to even determine what kind of security measures are implemented in the cloud. This section presents Cryptography, as one of the security measure that can be implemented.

scalability, reduced costs, and easy deployment. To control the security risks in cloud, it is

Cloud computing is a combination of two new emerging information technology worlds. The motive of the mobile cloud computing concept is to make use of the computing power of the cloud environment and make it available to the mobile devices in order to solve the challenges in a mobile environment. In recently developed mobile cloud architecture, mobile devices can access cloud services either through ad-hoc mobile network or access points [9].

Cloud computing is a topic of which much is assumed. The average person recognizes the term “cloud computing” as having to do with their storage from their iPad or iPhone on the online storage area which syncs their Apple devices to their computer. This common cloud is called the iCloud. That is where common knowledge ends about this topic. However, upon further exploration, a deeper understanding is gained with greater explanation, and it is realized that cloud computing is something that is used all of the time on many levels of everyday technology. While the terminology remains cryptic to the mind of most people, the concepts behind the practical uses of cloud computing become quite clear. It is relatable and understandable. Upon this revelation, the iCloud is recognized as the tip of the preverbal iceberg when speaking about cloud computing. It is important to discuss and further understand the many types of cloud computing as well as the various applications to life through technology. This affects how information is stored online, computers are protected, information is secured, emails are processed, and many other factors that are taken for granted in the world of technology. Cloud computing is a general term used to describe how information is stored, utilized, and accessed over the internet. There is no cloud, but the word cloud gives the connotation of an abstract place which is known to exist but is too vast to touch or contain (Griffith,

Cloud computing provides improvement in productivity. It is extremely easy to use cloud computing may sound geeky, but a decision to invest software is often driven by a good business dense.It provides many advantages for businesses—including low initial capital investment. Lower maintenance and operation costs, shorter startup times for new services higher utilization through virtualization, and easier disaster recovery—that make cloud computing an attractive option. Now for cloud computing for mobile users, the primary constraints for mobile computing are limited wireless bandwidth and energy. Cloud computing can provide energy savings as a service to mobile users, though it also poses some unique challenges.

To achieve the objective above, we need to study how Cloud work internally and externally, what the vulnerabilities and threats are in Cloud, and how to prevent an attack by exploiting the vulnerabilities. Additionally, discussion of specific countermeasures for the vulnerabilities and threats is necessary. Fragmentation-redundancy-scattering (FRS), Digital signatures, Homomorphic encryption, and Encryption will be introduced in order to prevent attacks regarding threats and vulnerabilities of Cloud technology.

Abstract— the great emergence of mobile cloud computing has gained lots of interest in these recent years. Mobile cloud computing consists of mobile devices and cloud computing offering mobile cloud environment by using a huge number of different mobile devices. Any device uses mobility such as laptops, tablets, and smart phones is considered as a mobile device. Due to the great improvement of wireless networks like 4G and the expansion of use of mobile device, many researchers are interested to provide different methods to use mobile resources for distributed processes to compute many applications in mobile cloud environment. Although the last mobile devices have improved processing power, there are some limitations in power capacity, unpredictable network conditions, and connections availability that must be considered in order to use mobile devices as resource. These dynamic changes may disconnect a mobile device from the cloud computing and then prevent applications from completion. In other words, these problems may cause a system to fault more frequently due to these changes. Therefore, in order to increase the stability of these devices, there should be a monitoring technique to tolerate system faults. In this paper, we focus on Markov Chain, which precisely collects and analyzes the information of states and proactively predicts the status of future state in order to solve the volatility and instability of mobile devices. Also, we study two fault tolerant methods,

One cause of confusion is whether “cloud computing” is synonymous with “the internet.” At a first uniformed glance, it seems that the two are the same thing. However, this is not true. The main difference between the internet and cloud computing is storage. The internet, to use the mall analogy, is the unvested shopper, but the cloud involves the shopper who also owns a shop in the mall and leaves his/her car parked in the lot.

Mobile devices are very much constrained in terms of storage, battery life and computational abilities. Mobile cloud computing comes in handy, to resolve these problems. It offers numerous advantages to the end-users on personal and business-level.

Cloud computing has many security threats. The major ones among those are breaching of data and abuse of cloud services. This has been listed by cloud computing alliance. In order to know about data breaching cloud alliance described the usage of side channel sharing information by two virtual machines working on the mutual server.Indepth knowledge is not important for hacker to pull off but if a database is improperly designed existence of single flaw will leads to hacking of entire data. The major challenge underlying while addressing this threats of leakage of secured data and manipulation or modification of content of data is that protecting the security of data. One of the solutions for this problem to ensure the security to data is encryption of data. This model reduces the data leakage to some extent. The major role while encrypting a plaintext into the cipher text i.e.., encrypted data, is the key used. If we lost the encryption key there may not be any possibility in recovering the data. This