A special Tree based index structure for efficient data searching in cloud data

Abstract: Cloud computing yields a variety of advantages like high storage space, shared resources and less management etc. Searchable encryption schemes are implemented to store the encrypted data. But this approach suffers from lack of security. To overcome this problem, a new tree based structure having Greedy Depth First Search algorithm is implemented to perform search process. Vector space and term frequency in addition to inverse document frequency are the two mechanisms responsible for efficient index and query generation. This approach involves UDMRS schemes which are more secure and efficient and it performs various operations like insertion and deletion of documents. Keywords: cloud data, encryption, keywords, data outsourcing, data privacy, security.