Framework to Improve Data Integrity in SAAS Cloud

Abstract

Cloud computing is a technology that being widely adopted by many big companies like Google, Microsoft etc in order to make the resources available to multiple users at a time over the internet. Many issues are identified due to which cloud computing is not adopted by all users till now. The aim of my thesis is to improve the data integrity in SaaS cloud. A framework is proposed and the data from different users is protected by encrypting it using cryptographic algorithms namely: RSA, Bcrypt and AES. The algorithm is selected by user based on the level of security needed to be applied to the user’s data. Performance analysis of the given framework is done using Cloudsim in Netbeans. It is seen that the time taken for encryption using the proposed framework is less than the time taken for encryption of a file using the old technique i.e. for different file sizes, different level of security is provided by the proposed approach which in turn takes less time for encryption. In previous scenarios all files were provided with same level of security irrespective of the type of data in it. Thus time for encryption of files using old technique was more. When the data is not modified its original form is sent to the user. Hence verification of data is done.