Towards Secure the Multi-Cloud using Homomorphic Encryption Scheme

Cloud computing is a model to acces shared pool of configurable computing resources which include servers, storage, applications, and also services to network effort or service interaction provider . This cloud model promotes availability and is composed of five essential fetures, in that service models are three, and four are deployment models. However, as the shape of the cloud computing is emerging and developing rapidly both conceptually and legal in reality economic, quality service, interoperability to exchange, security and privacy issues still pose significant challenges. we describe various service and deployment models of cloud computing and identify grater important challenges. In specific, we examine three crucial challenges: regulatory, security and privacy issues in Multi cloud computing. We use AES scheme for encryption of the data. As with any MAC (Medium Access Control), it is used to simultaneously verify both the data integrity and the authentication of a message. Erasure coding is used for rebuilding lost encoded fragments from existing encoded fragments. Objective-The scope of our project is it’s provides a survey on the achievable security merits by making use of multiple distinct clouds simultaneously. Various distinct architectures are introduced and discussed according to their security and privacy capabilities and prospects KeywordsCloud, Security, Privacy, Multiple clouds, Application Partitioning, Tier Partitioning, Data Partitioning, Multi-party Computation,encapsulation, Polymorphism.