マス・フォア・インダストリ研究所

研究集会・ワークショップ・国際会議



研究集会・ワークショップ・国際会議(一覧)

2011 Workshop "Secret Sharing and Cloud Computing"


開催時期 2011-06-07 10:00~2011-06-07 20:00

場所 Faculty of Mathematics (Building B1), Large Meeting Room 111, Floor B1 (basement)

 
2011 Workshop "Secret Sharing and Cloud Computing"

Proceedings of this workshop (PDF)

Workshop photos

Call for participation (PDF)
 
Hosted by
Ministry of Education, Culture, Sports, Science & Technology (MEXT)
Global COE Program Education-and-Research Hub for Mathematics-for-Industry
Institute of Mathematics for Industry
Kyushu University
 
 
Overview
Workshop "Secret Sharing and Cloud Computing" is devoted to applications of techniques from secret sharing for providing security in cloud computing.
The tutorials will establish background for the plenary talk and the invited talks, where recent achievements, new development trends and open problems will be presented and discussed.
 
 
 Date June 7 (Tuesday), 10:00 - 20:00, 2011
 
 Place Faculty of Mathematics (Building B1), Large Meeting Room 111, Floor B1 (basement)
744, Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
 
 Program (tentative)
June 7, 2011
10:00 - 10:10

Opening by MEXT and IMI
 
Tutorial Session
10:10 - 11:00 Introduction to Secret Sharing (Kirill Morozov, Kyushu University)
11:10 - 12:00 Cryptographic Techniques for Cloud Computing (Takashi Nishide, Kyushu University)
 
12:00-13:30 Lunch
 
Plenary Talk  
13:30-14:30 Yvo Desmedt, University College London, UK
"Secure Multiparty Computation for Cloud Computing"

Abstract: In February 2011, the Guardian wrote "The speed with which Amazon and PayPal dropped WikiLeaks should be a wake-up call to anyone who thinks that Cloud Computing services can be trusted ...". Moreover, IT Business wrote: "The countrywide Internet blackout Egypt is experiencing may resonate with a lot of Canadian ... businesses especially as more and more companies adopt cloud-based applications ..."
The use of Secure Multiparty Computation would allow to move to a redundant representation of the data to cope with a potential loss of availability. Secret sharing is a key technology that enables secure multiparty computation. In essence secure multiparty computation computes with shares without the need to reveal data that could leak private information to some of the cloud servers.
In this talk we first give a brief introduction to secure multiparty computation. We compare secure multiparty computation with threshold cryptography from a practical viewpoint. We then discuss how secure multiparty computation could move from a primarily theoretical research topic to one in which practical concerns are addressed.
 
14:30 - 14:40 Break
 
Invited Talks I  
14:40 - 15:15 Yuji Suga, Internet Initiative Japan (IIJ)
"Business Requirements for Applying Secret Sharing Schemes to Cloud Computing"
 
15:15 - 15:50 Satoshi Obana, NEC
"Efficient Secret Sharing Schemes Secure against Cheating"
 
15:50 - 16:25 Jun Kurihara, KDDI
"An XOR-based High-Speed Secret Sharing"
 
 
16:25 - 16:40 Break
 
Invited Talks II  
16:40 - 17:15 Maki Yoshida, Osaka University
"On $d$-Multiplicative Non-perfect Secret Sharing"
 
17:15 - 17:50 Kenji Yasunaga, Tokyo Institute of Technology
"Rational Secret Sharing with Constant-Round Reconstruction"
 
 
17:50 - 18:00 Closing of the public sessions
 
18:00 - 20:00 Discussion (internal)
 
 Organization Local organizers: Kirill Morozov, Tsuyoshi Takagi
Institute of Mathematics for Industry, Kyushu University

 
 Contact Contact information for inquiries:
E-mail: morozov [at] imi.kyushu-u.ac.jp
Tel: 092-802-4425
 
 
 
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