A Secure and Dynamic Multi-Keyword Ranked Search Scheme Over Encrypted Cloud Data
Abstract
In this paper, we present a secure multi-keyword ranked search scheme over encrypted cloud data, which simultaneously supports dynamic update operations such as deletion and insertion of documents. A Secure and Dynamic Multi-keyword Ranked Search Scheme over Encrypted Cloud Data We build a special tree-based index structure and propose a “Greedy Depth-first Search” algorithm to provide efficient multi-keyword ranked search. Due to the use of our special tree-based index structure, the proposed scheme can achieve sub-linear search time and deal flexibly with the deletion and insertion of documents.
System Configuration
H/W System Configuration
Speed : 1.1 GHz
RAM : 256 MB(min)
Hard Disk : 20 GB
Floppy Drive : 1.44 MB
Key Board : Standard Windows Keyboard
Mouse : Two or Three Button Mouse
Monitor : SVGA
S/W System Configuration
Platform : cloud computing
Operating system : Windows Xp,7,
Server : WAMP/Apache
Working on : Browser Like Firefox, IE
Conclusion
A secure, efficient and dynamic search scheme is proposed in this paper, which supports not only the accurate search ranked multi-keyword but also the dynamic deletion and insertion of documents. We create a special keyword-balanced binary tree as the index, and propose a “Greedy Depth-first Search” algorithm to achieve better efficiency than linear search. In addition, the parallel search process can be performed to further reduce the cost of time.
