A Secure and Efficient Data Store and Remote Data Integrity Checking in Cloud Computing Using TPA

Abstract

Cloud computing is emerging Technology which enables service to users store their significant data in the cloud. The Cloud data users need to encrypt the important and efficient data for cloud security. The point of data security which has always been a noteworthy aspect of quality, cloud computing cause a new security threat. Now a day's serious issues research going on regarding data security between user and service provider. Because Cloud Service Provider may be misuse the user data, maybe data modification, corruption can be perform by cloud service providers. So there is a threat to security and privacy of data. The Cloud Service Provider (CSP) can pass the user data without the user's knowledge. For doing auditing every time from user side it’s a very difficult task to a user, it leads some problem to the user. To solve this kind of issues, proposed research system is effectively use the third party as an auditor. Third party auditor acts as an agent of data owners. Here the data will be encrypted at user side with the help of advanced NTRU Cryptosystem and will be in encrypted form over network. Multi Third Party Authentication (MTPA) will audit the data   regular time interval with the help of Timer and scheduling process. After, it checks the data integrity of the client's data. No one else rather than the user is able to view data. But if someone tries to access the data or modify the data, then there will be a file alert generated to the user.Third Party Auditor provides regular auditing so that user no needs to worry about data privacy. Hence, finally, the user will have a more elaborated view over his data privacy.