Constructions and Security Analyses of Authenticated Encryption Schemes
Project/Area Number |
26280045
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
Information security
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Research Institution | Nagoya University |
Principal Investigator |
Iwata Tetsu 名古屋大学, 工学研究科, 准教授 (90344837)
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Project Period (FY) |
2014-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2017: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
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Keywords | 暗号・認証等 / 共通鍵暗号技術 / 認証暗号化方式 |
Outline of Final Research Achievements |
We studied authenticated encryption, a symmetric key primitive for privacy and authenticity. As our main results, we analyzed the security of various authenticated encryption schemes including GCM, CLOC, and SILC. We also studied the security of a block cipher called SIMON. We designed a message authentication scheme based on a tweakable block cipher. Finally, we contributed to the international competition called CAESAER, and organized international conferences DIAC 2016 and ASK 2016. Our proposal to CAESAR, CLOC and SILC, were not selected as the final round candidates.
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Report
(5 results)
Research Products
(41 results)
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[Presentation] QCCA on Feistel2018
Author(s)
Gembu Ito, Tetsu Iwata, and Ryutaroh Matsumoto
Organizer
Dagstuhl Seminar, Symmetric Cryptography, 18021
Related Report
Int'l Joint Research
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[Presentation] SILC Is INT-RUP Secure2017
Author(s)
Tetsu Iwata, Kazuhiko Minematsu, Jian Guo, Sumio Morioka, and Eita Kobayashi
Organizer
ESC 2017
Place of Presentation
ルクセンブルク
Year and Date
2017-01-16 – 2017-01-20
Related Report
Int'l Joint Research / Invited
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[Presentation] 認証暗号とCAESAR2016
Author(s)
岩田哲
Organizer
2016 年総合大会,電子情報通信学会
Place of Presentation
九州大学(福岡県・福岡市)
Year and Date
2016-03-15 – 2016-03-18
Related Report
Invited
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[Presentation] On GCM-SIV2016
Author(s)
Tetsu Iwata and Kazuhiko Minematsu
Organizer
Dagstuhl Seminar, Symmetric Cryptography, 16021
Place of Presentation
Dagstuhl (Germany)
Year and Date
2016-01-10 – 2016-01-15
Related Report
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[Presentation] Provable Security Bounds of GCM2015
Author(s)
Shohei Ando, Kazuhiko Minematsu, and Tetsu Iwata
Organizer
5th Asian Workshop on Symmetric Key Cryptography, ASK 2015
Place of Presentation
Singapore
Year and Date
2015-09-30 – 2015-10-03
Related Report
Invited
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[Presentation] Updates on CLOC and SILC2015
Author(s)
Tetsu Iwata, Kazuhiko Minematsu, Jian Guo, Sumio Morioka, and Eita Kobayashi
Organizer
Directions in Authenticated Ciphers, DIAC 2015
Place of Presentation
Singapore
Year and Date
2015-09-27 – 2015-09-29
Related Report
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[Presentation] GCM Security Bounds Reconsidered2015
Author(s)
Yuichi Niwa, Keisuke Ohashi, Kazuhiko Minematsu, and Tetsu Iwata
Organizer
Fast Software Encryption, FSE 2015
Place of Presentation
Istanbul (Turkey)
Year and Date
2015-03-08 – 2015-03-11
Related Report
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[Presentation] On Tweak Functions in CLOC2015
Author(s)
Hayato Kobayashi, Kazuhiko Minematsu, and Tetsu Iwata
Organizer
Early Symmetric Crypto (ESC) seminar
Place of Presentation
Clervaux (Luxembourg)
Year and Date
2015-01-12 – 2015-01-16
Related Report
Invited
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[Presentation] SILC: SImple Lightweight CFB2014
Author(s)
Tetsu Iwata, Kazuhiko Minematsu, Jian Guo, Sumio Morioka, and Eita Kobayashi
Organizer
Directions in Authenticated Ciphers, DIAC 2014
Place of Presentation
Santa Barbara (USA)
Year and Date
2014-08-22 – 2014-08-24
Related Report
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