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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 12 of 12  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
SITE, ISEC, HWS, EMM, BioX, IPSJ-CSEC, IPSJ-SPT, ICSS [detail] 2020-07-20
16:10
Online Online (Online) Short Lattice Signatures in the Standard Model with Efficient Tag Generation and Its Implementation
Kaisei Kajita, Go Ohtake, Kazuto Ogawa (NHK), Koji Nuida, Tsuyoshi Takagi (Univ. of Tokyo) ISEC2020-22 SITE2020-19 BioX2020-25 HWS2020-15 ICSS2020-9 EMM2020-19
We propose new short signature schemes under the Ring-SIS assumption in the standard model by revisiting an existing con... [more] ISEC2020-22 SITE2020-19 BioX2020-25 HWS2020-15 ICSS2020-9 EMM2020-19
pp.53-60
ISEC 2020-05-20
10:45
Online Online (Online) Improved Quantum Information Set Decoding Algorithm with Low Memory
Naoto Kimura (Univ. Tokyo), Atsushi Takayasu (NICT), Tsuyoshi Takagi (Univ. Tokyo) ISEC2020-3
The security of code-based cryptoststems relates to the hardness of the syndrome decoding problem. The best decoding alg... [more] ISEC2020-3
pp.15-22
ISEC 2020-05-20
14:10
Online Online (Online) [Invited Talk] How to Construct CSIDH on Edwards Curves (from CT-RSA 2020)
Tomoki Moriya, Hiroshi Onuki, Tsuyoshi Takagi (UTokyo) ISEC2020-8
CSIDH is an isogeny-based key-exchange protocol, that is one of the candidates for post-quantum cryptography. It is base... [more] ISEC2020-8
p.31
SITE, ISEC, LOIS 2018-11-04
14:10
Fukuoka (Fukuoka) Time Complexity of Syndrome Decoding Problem and Security Analysis of Code-based Signature Scheme
Partha Sarathi Roy (KDDI Research), Kirill Morozov (Univ. of North Texas), Kazuhide Fukushima, Shinsaku Kiyomoto (KDDI Research), Tsuyoshi Takagi (Univ. of Tokyo) ISEC2018-77 SITE2018-55 LOIS2018-37
 [more] ISEC2018-77 SITE2018-55 LOIS2018-37
pp.73-78
HWS, ISEC, SITE, ICSS, EMM, IPSJ-CSEC, IPSJ-SPT [detail] 2018-07-25
10:45
Hokkaido Sapporo Convention Center (Hokkaido) Code-Based Signature Scheme without Trapdoors
Partha Sarathi Roy (KDDI Research), Kirill Morozov (Univ. of North Texas), Kazuhide Fukushima, Shinsaku Kiyomoto (KDDI Research), Tsuyoshi Takagi (Univ. of Tokyo) ISEC2018-15 SITE2018-7 HWS2018-12 ICSS2018-18 EMM2018-14
 [more] ISEC2018-15 SITE2018-7 HWS2018-12 ICSS2018-18 EMM2018-14
pp.17-22
HWS, ISEC, SITE, ICSS, EMM, IPSJ-CSEC, IPSJ-SPT [detail] 2018-07-26
14:10
Hokkaido Sapporo Convention Center (Hokkaido) A New Embedding Method for Generalized LWE
Weiyao Wang, Yuntao Wang, Atsushi Takayasu, Tsuyoshi Takagi (Univ. Tokyo) ISEC2018-46 SITE2018-38 HWS2018-43 ICSS2018-49 EMM2018-45
Estimating the computational cost for solving learning with errors (LWE) problem is an indispensable research topic to u... [more] ISEC2018-46 SITE2018-38 HWS2018-43 ICSS2018-49 EMM2018-45
pp.363-370
ISEC 2016-09-02
13:25
Tokyo Kikai-Shinko-Kaikan Bldg. (Tokyo) An Homomorphic Encryption based on some kind of Indeterminate Equations
Koichiro Akiyama (Toshiba), Yasuhiro Goto (HUE), Shinya Okumura (ISIT), Tsuyoshi Takagi (Kyushu Univ.), Koji Nuida, Goichiro Hanaoka (AIST) ISEC2016-43
Authors propose a homomorphic public-key encryption whose security is based on a LWE-like problem related to indetermina... [more] ISEC2016-43
pp.27-34
ISEC 2016-09-02
15:30
Tokyo Kikai-Shinko-Kaikan Bldg. (Tokyo) [Invited Talk] Security estimation for lattice based cryptosystems by progressive BKZ algorithm (From Eurocrypt 2016)
Yoshinori Aono (NICT), Yuntao Wang (Kyushu Univ.), Takuya Hayashi (NICT), Tsuyoshi Takagi (Kyushu Univ.) ISEC2016-47
We introduce the paper “Improved Progressive BKZ Algorithms and their Precise Cost Estimation by Sharp Simulator” in Eur... [more] ISEC2016-47
p.57
EMM, ISEC, SITE, ICSS, IPSJ-CSEC, IPSJ-SPT [detail] 2016-07-15
13:50
Yamaguchi (Yamaguchi) On the Semi-regularity of Polynomial Systems Arising from the Section Finding Problem
Shinya Okumura (ISIT), Koichiro Akiyama (Toshiba), Tsuyoshi Takagi (Kyushu Univ.) ISEC2016-34 SITE2016-28 ICSS2016-34 EMM2016-42
There are no known quantum algorithms, performed in polynomial time, for solving the section finding problem on algebrai... [more] ISEC2016-34 SITE2016-28 ICSS2016-34 EMM2016-42
pp.185-191
ISEC 2016-05-19
13:25
Tokyo Kikai-Shinko-Kaikan Bldg. (Tokyo) On the Possibility of Recovering Short Generators over Ideal Lattices for Cyclotomic Fields
Shinya Okumura, Masaya Yasuda, Tsuyoshi Takagi (Kyushu Univ.) ISEC2016-6
Recently, next-generation high-performance cryptography, e.g. post-quantum cryptography, fully homomorphic encryption sc... [more] ISEC2016-6
pp.25-32
IPSJ-CSEC, ISEC, SITE, ICSS, EMM, IPSJ-SPT [detail] 2015-07-03
10:40
Aichi NAGOYA TRADE & INDUSTRY CENTER (Aichi) Report on Workshop on Cybersecurity in a Post-Quantum World
Takanori Yasuda (ISIT), Tsuyoshi Takagi (Kyushu Univ.) ISEC2015-22 SITE2015-20 ICSS2015-32 EMM2015-30
 [more] ISEC2015-22 SITE2015-20 ICSS2015-32 EMM2015-30
pp.135-136
QIT
(2nd)
2015-05-25
17:00
Osaka Osaka University (Osaka) MQ Challenge: Solving Problems for Post-Quantum Cryptography and Their Hardness Evaluation
Takanori Yasuda (ISIT), Xavier Dahan (Ochanomizu Univ.), Yun-Ju Huang (ISIT), Tsuyoshi Takagi (Kyushu Univ.), Kouichi Sakurai (ISIT)
 [more]
 Results 1 - 12 of 12  /   
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