Cloud computing: A review paper

A cloud storage system, consisting of a group of storage servers, provides long storage services over the net. General coding schemes protect information confidentiality, however also limit the functionality of the storage system as a result of a couple of operations are supported over encrypted information. Constructing a secure storage system that supports multiple functions is difficult once the storage system is distributed and has no central authority. Although considerable progress has been made, more research needs to be done to address the multi-faceted security concerns that exist within cloud computing. Security issues relating to standardization, multi-tenancy, and federation must be addressed in more depth for cloud computing to overcome its security hurdles and progress towards widespread adoption. The distributed storage system not only supports secure and strong information storage and retrieval, however also lets a user forward his information within the storage servers to a different user while not retrieving the info back. We have a tendency to analyze and counsel appropriate parameters for the amount of copies of a message sent to storage servers and therefore the number of storage servers queried by a key server. These parameters permit additional flexible adjustment between the amount of storage servers and robustness. Confidentiality, Integrity, Availability, Authenticity, and Privacy are essential concerns for both Cloud providers and consumers as well.