Cloud Server Storage Security Using TPA
Victo Sudha George · 2014
In cloud computing, data is moved to a remotely located cloud server. Cloud server faithfully stores the data and return back to the owner whenever needed. Many users place their data in the cloud and so data integrity is very important issue in cloud storage. After moving the data to the cloud, owner hopes that their data and applications are in secured manner. But that hope may fail sometimes that is the owner’s data may be altered or deleted. In this scenario, the user must download the data in order to validate it. If the outsourced data is very large files, such downloading to determine data integrity may become prohibitive in terms of increased cost of bandwidth and time, especially if frequent data checks are necessary. This project propose a method that, owner need not download the data or files to check the integrity and it provides the proofs that data is stored at a remote storage in cloud is not modified by anyone and there by integrity of the data is assured. Because data integrity ensured that data is of high quality, correct, consistent, and accessible. Data owner can resort to a Third Party Auditor (TPA) to check the integrity of data stored in cloud server.