In present scenario cloud computing is a large
pool of easily and accessible virtualized resources, such as
hardware, developmentplatforms and software services.
Cloud computing is a broad solution that delivers IT as a
service. Cloud is an internet based technology which uses
theInternet& central remote servers to support data and
applications. In cloud computing, the data will be stored in
data storage provided by cloud service providers. But still
many business companies are not willing to adopt cloud
computing technology due to lack of proper security control
policy which lead to many vulnerability in cloud computing.
Cryptography is mostly used technology to protect data
within cloud environment. It is an art and science of hiding
existing data from the external environment. It allows
information to be sent in a secure form in such a manner that
only authorized person is able to retrieve the original
information.The paper presentsa secure cloud data
encryption technology which encrypts the data using Hybrid
Algorithm (Vigenere and Caesar Cipher Encryption
Algorithm and Genetic Algorithm- HVCEGA). A hybrid
approach of more than one technique is more reliable and
strong enough to provide security of data while processing
and storage by using secured non-repeatable key (generated
by one time pad). Computation time, avalanche effect and
throughput are the parameters for which performance has
been compared with existing encryption approach. The
proposed HVCEGA algorithm provides more security by
multi-layer encryption and reduces computation complexity
using genetic algorithm.
Published In:IJCSN Journal Volume 5, Issue 4
Date of Publication : August 2016
Pages : 699-705
Figures :06
Tables : 02
Sonal Pawar : M.Tech. Scholar, Dept. of Computer Engineering &Applications
NITTTR, Bhopal, India
Dr. K. James Mathai : Associate Professor, Dept. of Computer Engineering & Applications
NITTTR, Bhopal, India
WCloud Computing, Cryptography, Hybrid
Algorithm, Genetic Algorithm, One Time Pad (OTP), Avalanche
Effect
In this paper hybrid algorithm is used for multi-layer
encryptions which provide higher security. The main
advantages of hybrid algorithm is that multiple encryption
algorithm are used which is more secure and it reduces
computation complexity by using GA functions. The
comparison shows that HVCEGA algorithm reduces the
computation time and avalanche effect is high as compare
to HVCCE algorithm and also provides better security
against brute force attack and data modification attacks.
And throughput is increased as compare to the existing
HVCCE algorithm. In future the performance of
HVCEGA algorithm can be tested in real time
environment and a possibility is to use the HVCEGA
algorithm for video files in cloud computing for
encryption.
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