Driven by the developing security requests for information outsourcing applications in supportable brilliant urban areas, scrambling customers’ information has been broadly acknowledged by the scholarly world and industry. Information encryptions ought to be done at the customer side before outsourcing, in light of the fact that mists and edges are not trusted. In this manner, how to appropriately scramble information in a way that the encoded and remotely put away information can, in any case, be questioned has turned into a testing issue.
In spite of the fact that watchword seeks over scrambled printed information have been broadly considered, approaches for encoding diagram organized information with help for noting chart questions are as yet ailing in the writing. In this paper, we uncommonly research diagram encryption technique for an essential chart question compose, called top-k Nearest Keyword (kNK) looks. We outline a few records to store important data for noting inquiries and certification that private data about the diagram, for example, vertex identifiers, catchphrases and edges are encoded or rejected. Security and productivity of our chart encryption conspire are exhibited by hypothetical confirmations and analyses on certifiable datasets, individually.