Deepening Card-based Cryptography
| Project/Area Number |
17K00001
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Theory of informatics
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| Research Institution | Tohoku University |
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Principal Investigator |
Mizuki Takaaki 東北大学, サイバーサイエンスセンター, 准教授 (90323089)
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| Project Period (FY) |
2017-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | カードベース暗号 / 秘密計算 / 物理的暗号技術 / 暗号系 |
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| Outline of Final Research Achievements |
Card-based cryptography performs cryptographic tasks such as secure multiparty computation by using a deck of physical cards (such as playing cards). The principal investigator constructed many new efficient card-based protocols for several tasks such as elementary secure computations, zero-knowledge proofs, and secure ranking, provided upper and lower bounds on the numbers of cards, proposed implementation issues and their countermeasures, and so on. Consequently, this research project has contributed to deepening card-based cryptography.
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| Academic Significance and Societal Importance of the Research Achievements |
三年間の研究成果の学術的意義の根拠を示すデータとして，「査読付論文」は合計24本であり，全てScopusに収録されている。本研究の直接経費の合計は350万円であるので，単純に割り算すると査読付論文1本あたりのコストは約14万5千円である。また，世界ランキング等の指標として重要な「トップ10％論文」について，SciValの2016-2019のデータ（field-weighted）において対象20本のうち，5本がトップ10％論文に該当している。すなわち，トップ10％論文の現在の輩出率は25％である。客観的に見て，我が国の研究力向上に（低コストで）貢献しており，社会的意義も小さくないと考えられる。
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Report
(4 results)
Research Products
(58 results)
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[Journal Article] Card-Based ZKP Protocols for Takuzu and Juosan2020
Author(s)
Daiki Miyahara, Leo Robert, Pascal Lafourcade, So Takeshige, Takaaki Mizuki, Kazumasa Shinagawa, Atsuki Nagao, and Hideaki Sone
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Journal Title
FUN 2020, Leibniz International Proceedings in Informatics
Volume: -
Pages: 採録決定
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Card-Based Secure Ranking Computations2019
Author(s)
Ken Takashima, Yuta Abe, Tatsuya Sasaki, Daiki Miyahara, Kazumasa Shinagawa, Takaaki Mizuki, and Hideaki Sone
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Journal Title
COCOA 2019, Lecture Notes in Computer Science
Volume: 11949
Pages: 461～472
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Light Cryptography2019
Author(s)
Pascal Lafourcade, Takaaki Mizuki, Atsuki Nagao, and Kazumasa Shinagawa
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Journal Title
WISE 2019, IFIP Advances in Information and Communication Technology
Volume: 557
Pages: 89～101
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Physical Zero-Knowledge Proof for Makaro2018
Author(s)
Xavier Bultel, Jannik Dreier, Jean-Guillaume Dumas, Pascal Lafourcade, Daiki Miyahara, Takaaki Mizuki, Atsuki Nagao, Tatsuya Sasaki, Kazumasa Shinagawa, and Hideaki Sone
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Journal Title
SSS 2018, Lecture Notes in Computer Science
Volume: 11201
Pages: 111-125
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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