Author : R Rakesh 1
Date of Publication :7th February 2016
Abstract: An efficient cryptographic cloud approach for data sharing system which is designed in such a way that data is shared among a large collection of different kinds of users. Since, Data sharing is an important functionality in cloud storage. Main concerned of cloud security is performing securely make all the transactions and efficiently share a collection of data related to any subject specializations areas with others users in cloud storage. Development of new novel concept of Hierarchical Key-Aggregate Searchable Encryption. This concept is implemented through development of a concrete Hierarchical key-aggregate searchable encryption framework scheme. This scheme is described as where a data owner only needs to produce and transmit a single aggregate key to a data user for sharing a large number of documents, also generated key is structured using access tree, data access policies are defined such as who can access the encryption data and data users are grouped under various hierarchical structuring. On the other side data user only needs to submit a single aggregate trapdoor to the cloud server, so that he/she can query over the shared set of documents with the help of generated single aggregate trapdoor. This proposed scheme is perfectly more secure and practically efficient. It is an effective and efficient method for public cloud storage, which is considered as a best solution to build a practical data sharing system.
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