Efficient multi-keyword ranked query over encrypted data in cloud computing
Design a novel storage and encryption algorithm to manage the keyword dictionary. Greatly reduce both the dictionary reconstruction overhead and the file index re-encryption time as new keywords and files are added. Design a novel trapdoor generation algorithm. Take the keyword access frequencies into account when the system generates the ranked list of the returning results.
ranked query cloud computing multi-keyword query top-k k query k k k k k data encryption privacy preserving