期刊论文

Li, Ruixuan

英文

Journal of Parallel and Distributed Computing

0743-7315

2020

137

224-237

10.1016/j.jpdc.2019.10.005

National Key Research and Development Program of China [2016YFB0800402, 2016QY01W0202]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [U1836204, U1936108, 61572221, 61433006, U1401258, 61502185]; National Social Science Foundation, China [16ZDA092]; Guangxi High level innovation Team in Higher Education Institutions, China -Innovation Team of ASEAN Digital Cloud Big Data Security and Mining Technology; National Science Foundation, ChinaNational Natural Science Foundation of China (NSFC) [CNS 1526190]

本校为其他机构

Recently, oblivious random access machine (ORAM) has been widely used to prevent privacy leakage from user's access pattern. However, in multi-user scenarios, the obliviousness property of ORAM facilitates the malicious data modification by unauthorized users, which brings a new security challenge of user accountability to ORAM applications. Moreover, based on our observations, existing user accountability schemes for multi-user ORAM induce the extremely unacceptable overhead in both time and storage. What is worse, it is still inherent the traditional cloud accountability problem that the unt...