A Novel Approach for Securing Cloud Data Using Cryptographic Approach

Abstract

— Nowadays, many businesses are making use cloud computing facility either directly (e.g. Google or Amazon) or indirectly (e.g. Twitter) instead of traditional on-site alternatives. Costs reduction, universal access, availability of number of applications and flexibility is a number of reasons for popularity of cloud computing. As the cloud service providers cannot be trusted one, enough security is an important aspect to consider so that user can store sensitive information securely. The concept of Multi Clouds is introduces as cloud computing assures user to provide the data, the cloud computing environment failure may result in loss or unavailability of data. Multi clouds guarantee to provide service at any cost if there is any failure at any cloud due to any reason. The use of multi clouds as it can tackle the security and mainly availability issues much effectively than single cloud that affects cloud computing user. This paper presents survey of recent research related to single and multi cloud security and addresses possible solutions. This aims to promote the use of multi clouds to solve problem of data availability due to failure in individual cloud. To provide data confidentiality, data integrity as well as authenticity, security mechanisms such as data encryption, visual secret sharing scheme (VSS)and digital signature are used.