Title:
SECRET COMBINATION SYSTEM, METHOD, SECRET CALCULATION DEVICE, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/244756
Kind Code:
A1
Abstract:
This secret combination system includes a plurality of secret calculation devices, and the plurality of secret calculation devices are each provided with a vector combination unit 11n, a first permutation calculation unit 12n, a first permutation application unit 13n, a first vector generation unit 14n, a second vector generation unit 15n, a bit inversion unit 16n, a second permutation calculation unit 17n, a second permutation application unit 18n, a third vector generation unit 19n, an inverse permutation application unit 110n, a vector separation unit 111n, a third permutation application unit 112n, an attribute value permutation unit 113n, and a fourth vector generation unit 114n.
Inventors:
IKARASHI DAI (JP)
HAMADA KOKI (JP)
HAMADA KOKI (JP)
Application Number:
PCT/JP2019/023390
Publication Date:
December 26, 2019
Filing Date:
June 13, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G09C1/00
Domestic Patent References:
| WO2018061800A1 | 2018-04-05 |
Foreign References:
| JP2014139640A | 2014-07-31 |
Other References:
ANDREA K; CHRISTINE LEITNER; HERBERT LEITOLD; ALEXANDER PROSSER: "Advances in Databases and Information Systems", vol. 7954, 25 June 2013, SPRINGER INTERNATIONAL PUBLISHING, ISBN: 978-3-319-10403-4, article LAUR SVEN; TALVISTE RIIVO; WILLEMSON JAN: "From Oblivious AES to Efficient and Secur e Database Join in the Multiparty Setting", pages: 84 - 101, XP047503753
HAMADA KOKI . KIRIBUCHI NAOTO . IKARASHI DAI : "An Equijoin Algorithm Based Non-unique Key Columns for Secure Multi-party Computation", THE 32ND SYMPOSIUM ON CRYPTOGRAPHY AND INFORMATION SECURITY , 20 January 2015 (2015-01-20), pages 1 - 6, XP009517229
NAOTO KIRIBUCHIDAI IKARASHIGENBU MOROHASHIKOKI HAMADA, AN EFFICIENT EQUI-JOIN ALGORITHM FOR SECURE COMPUTATION AND ITS IMPLEMENTATION TOWARD SECURE COMPREHENSIVE ANALYSES OF USERS' ATTRIBUTE AND HISTORY INFORMATION, 2016
See also references of EP 3813042A4
HAMADA KOKI . KIRIBUCHI NAOTO . IKARASHI DAI : "An Equijoin Algorithm Based Non-unique Key Columns for Secure Multi-party Computation", THE 32ND SYMPOSIUM ON CRYPTOGRAPHY AND INFORMATION SECURITY , 20 January 2015 (2015-01-20), pages 1 - 6, XP009517229
NAOTO KIRIBUCHIDAI IKARASHIGENBU MOROHASHIKOKI HAMADA, AN EFFICIENT EQUI-JOIN ALGORITHM FOR SECURE COMPUTATION AND ITS IMPLEMENTATION TOWARD SECURE COMPREHENSIVE ANALYSES OF USERS' ATTRIBUTE AND HISTORY INFORMATION, 2016
See also references of EP 3813042A4
Attorney, Agent or Firm:
NAKAO, Naoki et al. (JP)
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