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The Second International Workshop on Security and Privacy in Big Data (BigSecurity 2014)

 

 

 

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Toward Privacy-Assured Searchable Cloud Data Services

Abstract:

Cloud computing has been envisioned as the next generation enterprise IT architecture, providing convenient remote access to massively scalable data storage and application services. As more and more information of individuals and companies is placed in the cloud, user data privacy becomes a critical concern. Encryption-before-outsourcing is a promising solution to user data privacy, a primary challenge remains: how to effectively support flexible data utilization such as search over the encrypted data in a privacy-preserving manner?

Enabling privacy-assured search over encrypted data involves techniques from multiple domains- information retrieval for index representation, algorithms for search efficiency, and proper design of cryptographic protocols to ensure the security and privacy of the overall system. In this talk, we identify the system requirements and challenges toward achieving privacy-assured searchable outsourced cloud data services, especially, how to design usable and practically efficient search schemes for encrypted cloud storage. We present a general framework that allows encrypted data to be searched by users without leaking either user data or the query information. In particular, we discuss three desirable functionalities of usable search operations: search result ranking, multiple-keyword conjunctive search, and fuzzy search. We introduce approaches to supporting various functionalities and present an integrated solution to implementing efficient privacy-assured keyword search schemes. We Will also outline the future challenges that need to be solved to make such secure searchable cloud data service a reality.

 

Bio:

Wenjing Lou is an associate professor at Virginia Polytechnic Institute and State University. Prior to joining Virginia Tech in 2011, she was a faculty member at Worcester Polytechnic Institute (WPI) from 2003 to 2011. She received a Ph.D. in Electrical and Computer Engineering from University of Florida, an M.S. and a B.S. in Computer Science and Engineering from Xi'an Jiaotong University in China.

Her current research interests include wireless network security and data security and privacy in cloud computing. Prof. Lou is currently serving on the editorial board of three journals: IEEE Transactions on Parallel and Distributed Systems, IEEE Wireless Communications Letters, and Journal of Computer Security. She is a past editor for IEEE Transactions on Wireless Communications, IEEE Transactions on Smart Grid, Elsevier Computer Networks, and Springer Wireless Networks. She has chaired the technical program committee for a number of conferences, workshops, and symposia. These include General Symposium at IEEE GLOBECOM 2007, Network Security and Privacy Track at IEEE ICCCN 2009, Security Symposium at IEEE ICC 2010, SPCC 2010, Security and Localization Track at IEEE PIMRC 2011, Security Symposium at IEEE GLOBECOM 2012, Cloud Computing and Networking Symposium at ICNC 2012, SECRYPT 2012, and Networking and Mobile Computing Track at ICPP 2014. She served as TPC Area Chair for several top conferences, including IEEE INFOCOM 2013-2015, IEEE ICNP 2013, IEEE SECON 2014, and IEEE CNS 2014. She is the lead co-founder of IEEE CNS, a new conference series in IEEE Communications Society (ComSoc) core conference portfolio and the only ComSoc conference focusing solely on network and communications security. She served as the TPC co-chair for the first CNS conference in 2013 and is currently the steering committee chair of IEEE CNS.