An Enhanced Multi - Keyword Ranked Search Using Co-Ordinate Matching For Privacy Preserving Over Encrypted Cloud Data

Due to the tremendous growth of cloud computing, data owners are motivated to outsource their complex data management systems from local sites to the commercial public cloud for flexibility and economic savings. Search service for the encrypted cloud data is essential. Allowing multiple keywords in the search request and returning documents in the order of their relevance to the keywords is an interesting area of research. Preserving the privacy of the sensitive data is an important issue for cloud computing. This paper discusses about the challenging problem of privacy preserving using Multi-keyword Ranked Search (MRSE) over encrypted cloud data. The proposed work focus on searchable encryption using multi-keyword search and Co-ordinate matching keyword search, and sort the search results. The proposed system is tested and the result shows a considerable amount of improvement is searching time. The retrieval of documents is also significantly higher than MRSE.