Authentication And Encryption Based Cloud Data Access Privilege With Load Balancing Technique

Nowadays, users are more attracted towards outsourcing data to cloud server due to cheap storage cost, efficient management, maintenance, data security etc. Preferably, user outsources their data into encrypted format for privacy concern. There may have chances of de-duplication if similar file is available in cloud storage. Data duplication is one of the important issue which affects on cloud storage. We proposed two secure approaches namely, SecCloud and SecCloud+ for secured auditing and de-duplication in cloud server. On loud server, there may have chances of duplicate data which affects on the management of data. The proposed system check for duplicate files on cloud server before uploading file on cloud by using file tag generation and file block uploading approaches. For verification of data `auditor’ is introduced which verifies the data integrity. There are several features introduced in proposed system such as, data encryption, data duplication check and periodic verification of data. For better efficiency map-reduce functionality is used. As a part of contribution, system is design and developed with multiuser environment. User can share files with the other users which is uploaded by them to cloud server. With an experimental set up proposed system proves an efficiency of system in terms of Data uploading, tag generation and deduplication check time of execution.