Secure Audit Service by Using TPA for Data Integrity in Cloud System
Shingare Vidya Marshal · 2013
Cloud computing is the vast computing utility, where users can remotely store their data into the c loud so to have the benefit of the on-demand availability of huge a nd different applications and services from a shared pool of con figurable computing resources. Cloud-based outsourced storage space reduces the patron load of storage management. It also reduces the maintenance load of customer by providing a comparably low-cost, scalable, location-independent platform. This new model of data hosting service commence a new security challenges, which requires an independent a uditing service which audit the data integrity of cloud. The re are different existing auditing services available in cloud which audit data integrity remotely in static motion but these are n ot applicable whenever data is dynamically updated in cloud. Since it require efficient and secure dynamic auditing method for data owner. However in cloud, the clients no have direct physica l possession of data. It shows client faces different formidable ris k like missing or corruption of data. To keep away from the security a nd integrity risk of data, audit services are essential to ensur e the integrity and availability of outsourced data and to achieve digi tal forensics and credibility on cloud computing. Provable data possession (PDP), which is a cryptographic technique for verifying the integrity of data withou t retrieving it at an untrusted server, can be used to realize audit s ervices. In this paper, profiting from the interactive proof system, we address the construction of an interactive PDP protocol to prev ent the fraudulence of prove (soundness property) and the l eakage of verified data (zero-knowledge property) (1) (17) (20 ).