Physical Sciences and Mathematics Commons^™

Privacy Preserving Search Services Against Online Attack, Yi Zhao, Jianting Nian, Kaitai Liang, Yanqi Zhao, Liqun Chen, Bo Yang

Research Collection School Of Computing and Information Systems

Searchable functionality is provided in many online services such as mail services or outsourced data storage. To protect users privacy, data in these services is usually stored after being encrypted using searchable encryption. This enables the data user to securely search encrypted data from a remote server without leaking data and query information. Public key encryption with keyword search is one of the research branches of searchable encryption; this provides privacy-preserving searchable functionality for applications such as encrypted email systems. However, it has an inherent vulnerability in that the information of a query may be leaked using a keyword guessing …