Computing means any goal-oriented activity
requiring, benefiting from, or creating computers. Thus, computing includes
designing and building hardware and software systems for a wide range of
purposes; processing, structuring, and managing various kinds of information;
doing scientific studies using computers; making computer systems behave
intelligently; creating and using communications and entertainment media;
finding and gathering information relevant to any particular purpose.
GREEN COMPUTING
Green computing is the environmentally
responsible and eco-friendly use of computers and their resources. In broader
terms, it is also defined as the study of designing, manufacturing/engineering,
using and disposing of computing devices in a way that reduces their
environmental impact. Many IT manufacturers and vendors are continuously
investing in designing energy efficient computing devices, reducing the use of
dangerous materials and encouraging the recyclability of digital devices and
paper. Green computing is also known as green information technology (green
IT). Green computing, or green IT, aims to attain economic viability and
improve the way computing devices are used. Green IT practices include the
development of environmentally sustainable production practices, energy
efficient computers and improved disposal and recycling procedures.
MOBILE
COMPUTING
Mobile computing is human–computer interaction by
which a computer is expected to be transported during normal usage. Mobile
computing involves mobile communication, mobile hardware, and mobile software.
Communication issues include ad-hoc and infrastructure networks as well as
communication properties, protocols, data formats and concrete technologies.
Hardware includes mobile devices or device components. Mobile software deals
with the characteristics and requirements of mobile applications. Thus, mobile
computing is the ability to use computing capability without a pre-defined
location and/or connection to a network to publish and/or subscribe to
information The purpose of this paper is to explore the comparison between
Green cloud computing and Mobile Cloud computing and security issues and define
which common security solutions are.
GREEN
CLOUD COMPUTING
Green cloud is a buzzword that refers to the
potential environmental benefits that information technology (IT) services
delivered over the Internet can offer society. The term combines the words
green -- meaning environmentally friendly -- and cloud, the traditional symbol
for the Internet and the shortened name for a type of service delivery model
known as cloud computing.
Benefits
of Green Cloud Computing
·
Reduced
Cost
·
Automatic
Updates
·
Green
Benefits of Cloud computing
·
Remote
Access
·
Disaster
Relief
·
Self-service
provisioning
·
Scalability
·
Reliability
and fault-tolerance
·
Ease of Use
·
Skills and
Proficiency
·
Response
Time
·
Increased
Storage
·
Mobility
Security Issues in Green cloud computing
The chief concern in cloud environments is to
provide security around multi-tenancy and isolation, giving customers more
comfort besides “trust us” idea of clouds. There has been survey works reported
that classifies security threats in cloud based on the nature of the service
delivery models of a cloud computing system However, security requires a
holistic approach. Service delivery model is one of many aspects that need to
be considered for a comprehensive survey on cloud security. Security at
different levels such as Network level, Host level and Application level is
necessary to keep the cloud up and running continuously. In accordance with
these different levels, various types of security breaches may occur.
There are four types of issues raise while
discussing security of a cloud.
·
Data Issues
·
Privacy
issues
·
Infected Application
·
Security
issues
Solution
to security issues in Green Cloud Computing
1) Control the consumer access devices: Be sure the consumer’s access devices or points
such as Personal Computers, virtual terminals, gazettes, pamphlets and mobile
phones are secure enough. The loss of an endpoint access device or access to
the device by an unauthorized user can cancel even the best security protocols
in the cloud. Be sure the user computing devices are managed properly and
secured from malware functioning and supporting advanced authentication
features.
2)
Monitor the Data Access: Cloud
service providers have to assure about whom, when and what data is being
accessed for what purpose. For example many website or server had a security
complaint regarding snooping activities by many people such as listening to
voice calls, reading emails and personal data etc.
3)
Share demanded records and Verify the data deletion: If the user or consumer needs to report its
compliance, then the cloud service provider will share diagrams or any other
information or provide audit records to the consumer or user. Also verify the
proper deletion of data from shared or reused Many providers do not provide for
the proper degaussing of data from drives each time the drive space is
abandoned. Insist on a secure deletion process and have that process written
into the contract.
4) Security checks events: Ensure that
the cloud service provider gives enough details about fulfillment of promises,
break remediation and reporting contingency. These security events will
describe responsibility, promises and actions of the cloud computing service
provider
MOBILE CLOUD COMPUTING
Mobile
cloud computing is the combination of cloud computing and mobile networks to
bring benefits for mobile users, network operators, as well as cloud providers.
Cloud computing exists when tasks and data are kept on the Internet rather than
on individual devices, providing on-demand access. Mobile apps may use the
cloud for both app development as well as hosting. A number of unique
characteristics of hosted apps make the mobile cloud different from regular
cloud computing. Mobile apps may be more reliant upon the cloud to provide much
of the computing, storage, and communication fault tolerance than regular cloud
computing does.
Benefits
of Mobile Cloud Computing
·
Extending
battery lifetime
·
Improving
data storage capacity and processing power
·
Improving
reliability
Security Issues in Mobile cloud Computing
Cloud computing as opposed to standard computing
has several issues which can cause reluctance or
fear in the user base. Some of
these issues include concerns about privacy and data ownership and security.
Some of these concerns are especially relevant to mobile devices. In this
section, the paper discusses some of these issues, including both incidents
involving them and techniques used to combat them.
·
Privacy
·
Data Ownership
·
Data Access
and Security
Solution
to Security issues in Mobile Cloud computing
Individuals and enterprises take advantage of the
benefits for storing large amount of data or applications on a cloud. However,
issues in terms of their integrity, authentication, and digital rights must be
taken care of
1)
Integrity: Every mobile cloud
user must ensure the integrity of their information stored on the cloud. Every
access they make must me authenticated and verified. Different approaches in
preserving integrity for one’s information that is stored on the cloud is being
proposed.
2)
Authentication: Different
authentication mechanisms have been presented and proposed using cloud
computing to secure the data access suitable for mobile environments. Some uses
the open standards and even supports the integration of various authentication
methods. For example, the use of access or log-in IDs, passwords or PINS,
authentication requests, etc.
3)
Digital rights management: Illegal
distribution and piracy of digital contents such as video, image, audio and
e-book, programs becomes more and more popular. Some solutions to protect these
contents from illegal access are implemented such as provision of encryption
and decryption keys to access these contents. A coding or decoding must be done
before any mobile user can have access to such digital contents
