Title:
秘密計算システム、秘密計算装置、秘密計算方法、プログラム、および記録媒体
Document Type and Number:
Japanese Patent JP6713585
Kind Code:
B2
Abstract:
Piand P+have stored a+∈{a0, a1, a2} and b+∈ {b0, b1, b2} therein, and Piand P-have stored a-∈A-and b-∈B-therein. Here, P+= P(i+1)mod3, P-= P(i- 1)mod3, and a and b are arbitrary values and satisfy a = a0+a1+a2and b = b0+b1+b2, where A-is a complement of a+ in {a0, a1, a2} and B-is a complement of b+in {b0, b1, b2}. Piand P+share r+, Piand P-share r-, and Picalculates c+ = (a++a-)(b++b-)-a-b-+r+-r-. Pisends c+to P+.
Inventors:
Dai Igarashi
Koji Senda
Ryo Kikuchi
Koji Senda
Ryo Kikuchi
Application Number:
JP2019527663A
Publication Date:
June 24, 2020
Filing Date:
June 28, 2018
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
G09C1/00
Domestic Patent References:
| JP201278446A | ||||
| JP6006842B1 | ||||
| JP201726788A |
Other References:
滝 雄太郎, 他,軽量Nパーティ秘匿関数計算の一般解と情報銀行の分散型セキュアストレージへの応用,マルチメディア,分散,協調とモバイル(DICOMO2017)シンポジウム論文集,日本,情報処理学会,2017年 6月21日,pp. 779-784
Attorney, Agent or Firm:
Naoki Nakao
Yukio Nakamura
Yoshimura Munehiro
Yukio Nakamura
Yoshimura Munehiro