Searchable Symmetric Encryption and its Attacks

Talk by Kaitai LIANG

Sep 11, 2023 Monday


Searchable Symmetric Encryption (SSE) is a technique that allows users to delegate keyword searches over encrypted databases to a server that may be honest but curious, while preserving the privacy of the keywords and the encrypted documents. In this presentation, we will begin by introducing the concepts, mechanisms, and security notions related to SSE. We will then discuss current attacks on SSE and highlight some of the open problems in this area. 


September 11th, 2023, Monday

10:00 – 10:30


Rm105, W3

Speaker Bio:

Dr. Kaitai Liang

Professor, Cybersecurity Group, Delft University of Technology

Dr. Kaitai Liang is a tenured faculty member of the Cybersecurity group at Delft University of Technology. He received his PhD degree in computer science from Department of Computer Science at City University of Hong Kong. With over 11 years experiences on cybersecurity R&D, his main focus is on the design and implementation of cryptographic protocols to security. He has led as a PI in several European funded projects, e.g., TANGO, ASSURED, IRIS, and delivered real-world impact via these projects with academic and industrial partners. He has also maintained a tight and strong research relationships with Europe, Asia-pacific and northern America academic communities. He has published a series of research works (> 120 publications, > 4,300 citations), applying information security and crypto tools to address cybersecurity challenges. These publications have appeared in high-tier international information security journals and A* conferences, e.g., USENIX Security, NDSS, ESORICS (where he was honored with the Best Research Paper Award in 2015), IEEE TIFS, and IEEE TDSC. Beyond his research contributions, Dr. Liang has played an active role in the academic community. He has served as a Technical Program Committee (TPC) member, General Chair, and Steering Committee member for over 25 renowned international security and privacy conferences, including IEEE Euro S&P, ESORICS, IEEE CSF, and PoPETs. Furthermore, he has made valuable contributions to ISO standards as a member of the standards committee 381027 “Cybersecurity & Privacy” at NEN. In addition to his academic pursuits, Dr. Liang serves as an Associate Editor for esteemed journals such as the Computer Journal, IEEE Systems Journal, IEEE Transactions on Artificial Intelligence, and the EURASIP Journal on Information Security. Furthermore, he acts as a cybersecurity consultant for SMEs, sharing his expertise and guidance in the field.