Inventors:
Ashwin SWAMINATHAN - San Diego CA, US
Yinian Mao - San Diego CA, US
Hongmei Gou - Germantown MD, US
Avinash L. Varna - Greenbelt MD, US
Shan He - Plainsboro NJ, US
Min Wu - Clarksville MD, US
Douglas W. Oard - College Park MD, US
International Classification:
G06F 17/30, H04L 9/00
US Classification:
713189, 707728, 707705, 707E17014, 707E17017
Abstract:
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.