Evaluable Secure Ranked Keyword Search Scheme over Encrypted Cloud Data

As sensitive information is centralized into the cloud, how to effectively search over encrypted data is becoming a research bottleneck of Cloud Storage Security. Based on the original solution of secure ranked keyword search over encrypted cloud data, we exploit the concept of evaluation for relevance of index. We introduce the Index Evaluation Service to build a secure ranked keyword search over encrypted cloud data. With the user´s subjective evaluation for relevance of index, our solution achieves the goal of efficient utilization of the search result and user´s feedback.