University System of Maryland

Douglas W Oard

Guan-Ming Su

Ashwin Deepak Swaminathan

Yinian Mao

Min Wu

Shan He

Avinash Laxmisha Varna

Hongmei Gou

A confidentiality preserving system and method for performing a rank-ordered search and retrieval of contents of a data collection. The system includes at least one computer system including a search and retrieval algorithm using term frequency and/or similar features for rank-ordering selective contents of the data collection, and enabling secure retrieval of the selective contents based on the rank-order. The search and retrieval algorithm includes a baseline algorithm, a partially server oriented algorithm, and/or a fully server oriented algorithm. The partially and/or fully server oriented algorithms use homomorphic and/or order preserving encryption for enabling search capability from a user other than an owner of the contents of the data collection. The confidentiality preserving method includes using term frequency for rank-ordering selective contents of the data collection, and retrieving the selective contents based on the rank-order.

System and method for confidentiality-preserving rank-ordered search

Growing community of inventors

College Park, MD, United States of America

Douglas W Oard