日本データベース学会の皆様、 以下の講演会が12月24日(月)・東大生研にて行われます。 ふるってご参加ください。 芝浦工業大学 中野美由紀 ☆☆☆ 12月24日(火) 講演会のご案内 ☆☆☆ 主催 最先端研究開発支援プログラム（FIRST）: 超巨大データベース時代に 向けた最高速データベースエンジンの開発と当該エンジンを核とする 戦略的社会サービスの実証・評価 後援 電子情報通信学会 データ工学研究専門委員会 後援 ACM SIGMOD Japan Chapter 日時: 12月24日（火） 15：00〜17：00 場所: 東京大学生産技術研究所 E棟 5階 会議室Ｂ（Ew-502） http://www.iis.u-tokyo.ac.jp/map/index.html Speaker : Prof. David Cheng Title: Secure Query Computation with Data Interoperability in a Cloud Database Environment 参加費 無料 皆様のご参加をお待ちしております。 FIRST : 研究代表者 喜連川 優 電子情報通信学会データ工学研究会 委員長 木俵 豊 ----------------------------------------------------------------- To: first_lecture@tkl.iis.u-tokyo.ac.jp 講演会 参加申し込み 12月24日（月）の講演会に参加 ・名前 ・ご所属 ------------------------------------------------------------------ -------------------------------------------------------------------- Program Date: December 24(Tuesday), From 15:00 to 17:00 Place: IIS Ew-502 ("E" building on the 5th floor) http://www.iis.u-tokyo.ac.jp/map/index.html Speaker: Prof. David Cheung(The University of Hong Kong) Title: Secure Query Computation with Data Interoperability in a Cloud Database Environment Abstract: In this talk, we will address a security issue in a cloud database system. In such a system, the user/data owner (DO) exports its data to a cloud of a service provider (SP), which offers a database service. To provide data security, highly sensitive data is encrypted by the DO before it is uploaded to the database at the SP, and the SP is not trusted to have information about the encryption. In order for the SP to process queries on the encrypted data, we need homomorphic encryption, which allows computations to be done on encrypted data without knowing the data content. Existing homomorphic schemes cannot answer SQL-like queries that involve operations of many kinds. We propose and design a secure query database system on relational tables and a set of primitive operators on encrypted data that allow data interoperability. This is the first system that allows SQL-like queries to be processed on encrypted data. We prove that the encryption scheme is secure against a defined security model. Through experiments, we show that computation on the DO is minimal and most of the computation is done on the SP. Hence, this is a good-fit model for cloud database. Biography: Professor David Cheung is a Professor of the Department of Computer Science and Director of the Center for E-commerce Infrastructure Development (CECID) in The University of Hong Kong. He is the leader of the Data Engineering Research Group in HKU. He conducts research in database, data mining, e-commerce and accessibility technologies. He is a Distinguished Fellow of the Hong Kong Computer Society, a recipient of the HKU Outstanding Researcher Award. He received the Distinguished Contribution Award in the 2009 Pacific-Asia Data Mining and Knowledge Discovery Conference and was the co-chair of the 2009 CIKM Conference. In 2013, Professor Cheung was awarded a Medal of Honour by the Chief Executive of the Hong Kong Government for his contribution to information technology. -- ---------------------------------------------------------------------- 中野 美由紀 芝浦工業大学 教育イノベーション推進センター Miyuki NAKANO Shibaura Institute of Technology Center for Promotion of Educational Innovation miyuki@sic.shibaura-it.ac.jp