ACHIEVING CLOUD DATA SHARING USING KEY AGGREGATE SEARCHABLE ENCRYPTION

In Cloud Storage there is an important functionality called Data Sharing. But the query always present in every one's mind is how to securely, efficiently, and flexibly share data with others in cloud storage. The preferred suppleness of distribution any collection of chosen credentials with any assembly of user's dif iculties poles apart encryption keys to be used for dissimilar credentials. On the other hand, this also involve the obligation of steadily distribute to users a outsized amount of keys for both encryption and rummage around, and those users will have to securely store the traditional keys, and put forward an equally hefty number of keyword trapdoors to the cloud in order to perform search over the shared data. A new public-key cryptosystem is introduced to produce a constant size cipher texts called KASE. Advanced Key sharing system based on hint text methodology is formed to share the data safely. Once the data sharing is completed then the key aggregate dif ers from its actual form. So the user cannot guess the key aggregate cryptosystem and this process provides ef icient solution than the existing ones