Author : Miss.Prateeksha Nagargoje and Mrs. V.L. Kolhe

Cloud computing is becoming a prominent computing paradigm that allows users to store their data into a cloud server to enjoy scalable and on-demand services. Group data sharing in cloud environments has become a hot topic in recent. With the popularity of cloud computing, how to achieve secure data sharing in cloud environments is an urgent problem to be solved. Although encryption techniques have been used to provide data confidentiality and data security in cloud computing, exsisting technique cannot enforce privacy concerns over encrypted data associated with multiple data owners, which makes co-owners unable to appropriately control whether data distributor can actually distribute their data.An Efficient Data Group Sharing and Data Auditing with Multi-Owner in Cloud Computing, in which information proprietor can impart private information to a gathering of clients by means of the cloud in a safe manner, and information merchant can convey the information to another gathering of clients if the traits fulfill the entrance approaches in the scrambled information. Further present a multiparty get to control system over the appropriated scrambled information, in which the information co-proprietors can annex new access approaches to the encoded information because of their security inclinations.

Keywords: Data sharing, cloud computing, Data auditing, encryption, privacy conflict.