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In cloud computing frequently referred to as basically, the concept of data security for accessing the data to control effectively. These systems give a secure cloud storage environment for privacy preserving mechanism. The data integrity accessing method is a very effective for the information which is stored in the cloud storage system, so data outsourcing mechanism to allocate in cloud server or each unauthorized user. Typically, cloud computing described as just "the cloud computing" as the conveyance of request processing of the information. yet, for security auditing process of this shared information in cloud, to save the identity information of the users remaining part is the big challenge. This paper presents the best method of this system for privacy preserving so as to authorize the reviewing data of the users in cloud storage. That's why, we easily access the shared information in the cloud. This system truly focuses on the verification of data is necessary for reviewing process to check the integrity of shared data. During this system, the signature identity method is processed for every chunk is stored as securely as a TPA.The final output observed in this system confirms the integrity of data on that system though reviewing the common data which are present in cloud. Keywords: Cloud Computing, Cryptography, Data integrity, Privacy-Preserving, Third-party public auditing etc. I. INTRODUCTIONInitially in cloud computing this paper proposes, to satisfy the requirement of data storage ability for processing the data in cloud server also need the data outsourcing for data owners. Thus, cloud service provides the services of data integrity, but the safety of owner's data is still most important concern while storing and accessing information in cloud storage. In cloud storage system to produce the most significant security related problems to easily access the information. To maintain the integrity of data in cloud storage, however, is subject to skepticism and scrutiny. This is only because as the information stored in cloud storage can be easily lost or corrupted on any system platform. To maintain the reliability of information on cloud, third party auditor (TPA) is introducing that best method to perform public auditing so it's reviewing process offers with great computation as well as conversation capacity of that common authentication of clients. Cloud computing has turned into a very important part of IT industry. The user can store his information on cloud and recover it at whatever point he needs to develop it. This maintains a strategic distance from the cost of information support and there is no compelling reason to actually store information on one's pc. Every individual from the gathering can get to information through the web and there is no compelling reason to make various duplicates of information for individual users. In cloud computing this type of model brings numerous security challenges like information privacy, verification, and access control. At that time, when inform...