Presentation 2017-12-21
A Study of Speeding Up Secure Search Implemented with Fully Homomorphic Encryption
Yuki Yamada, Masato Oguchi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Putting genome data to practical use is drawing more attention as it becomes possible to analyze human genome data and apply its result recently. Large storages and computers are necessary to manage such a kind of big data, so outsourcing systems will be popular which receive some inquiries from users and execute calculations on cloud. However, cloud environment is not secure, because it is connected to the Internet and accessed by an indefinite number of people. Genome data is personal information, and in order to protect its privacy, we must encrypt these data. Although some secure search methods implemented with Fully Homomorphic Encryption (FHE), with which encrypted data can be calculable without decryption, was proposed, its calculation amount is still too large to put into practice. In this study, we applied decentralized processing to FHE calculation on the server side of the system proposed in a prior study by dividing and distributing database and discussed the future tasks for further acceleration.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Fully Homomorphic Encryption / Secure Search / Decentralized System
Paper # MoNA2017-38
Date of Issue 2017-12-14 (MoNA)

Conference Information
Committee MoNA
Conference Date 2017/12/21(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Ochanomizu University
Topics (in Japanese) (See Japanese page)
Topics (in English) Cloud computing, Big data, Wireless network, etc.
Chair Ryoichi Shinkuma(Kyoto Univ.)
Vice Chair Shigeaki Tagashira(Kansai Univ.) / Gen Kitagata(Tohoku Univ.)
Secretary Shigeaki Tagashira(Kyushu Univ.) / Gen Kitagata(NTT)
Assistant Takayuki Nishio(Kyoto Univ.) / Takato Saito(NTT)

Paper Information
Registration To Technical Committee on Mobile Network and Applications
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Study of Speeding Up Secure Search Implemented with Fully Homomorphic Encryption
Sub Title (in English)
Keyword(1) Fully Homomorphic Encryption
Keyword(2) Secure Search
Keyword(3) Decentralized System
1st Author's Name Yuki Yamada
1st Author's Affiliation Ochanomizu University(Ochanomizu Univ.)
2nd Author's Name Masato Oguchi
2nd Author's Affiliation Ochanomizu University(Ochanomizu Univ.)
Date 2017-12-21
Paper # MoNA2017-38
Volume (vol) vol.117
Number (no) MoNA-371
Page pp.pp.55-58(MoNA),
#Pages 4
Date of Issue 2017-12-14 (MoNA)