Analysis on Data Security Issues and Cryptographic Algorithms in Cloud Computing

Author P. Selvarani
Co-Author N. Malarvizhi
DOI

Country : India
Subject : CSE

Keywords : Cloud Computing, Data Security, Cryptographic algorithm, Encryption/Decryption Blowfish.

Abstract

Cloud computing is an emerging technology which reduces storage burden for a data owner. When the data owner needs to access the data which is provided by the cloud vendor there is a chance for the intruders to change/modify the data. This is because data owners do not have direct control on data. So the data security is the big challenge in cloud computing. It is necessary to increase the data security level, and need to protect the data against unauthorized users in cloud computing. To achieve higher data storage security in cloud computing traditional authentication techniques can be used. There exists many security algorithm which is used to implement in the cloud computing. Symmetric, Asymmetric and hashing. Symmetric algorithm consist DES,AES, Triple DES, and Blowfish. Asymmetric algorithm consist RSA,D-H, IKE,DSA etc. This paper ensures various data security issues allied to cloud computing and reviews on cryptographic algorithms used for data security purpose. While comparing above algorithms blowfish is efficient. Because blowfish is a strongest encryption algorithm, very fast and highly secured. Along with this Multimodal bio cryptography techniques can be used to increase the security level. The combination of biocryptographic technique forms the key for Blowfish algorithm. Thus by using this technique one can secure the data from unauthorized users.

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