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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| SITE, ISEC, HWS, EMM, BioX, IPSJ-CSEC, IPSJ-SPT, ICSS [detail] | 2020-07-21 15:45 |
Online | Online | Key Holding System Without Exchanging Common Key between Users
-- TS Key Holding System -- Nobuharu Suzuki, Kouji Sasaki (Adin), Takahiro Yoshimura, Ken-ya Yoshimura (Monolith), Toshio Tsuji (Vega), Masao Yamasawa, Masahito Gotaishi, Shigeo Tsujii (Chuo Univ.)  ISEC2020-29 SITE2020-26 BioX2020-32 HWS2020-22 ICSS2020-16 EMM2020-26 |
[more] | ISEC2020-29 SITE2020-26 BioX2020-32 HWS2020-22 ICSS2020-16 EMM2020-26 pp.99-103 |
| ISEC, SITE, LOIS | 2019-11-02 09:35 |
Osaka | Osaka Univ. | Proposal of Multivariate Public Key Cryptosystem Based on Modulus of Numerous Prime Numbers and CRT with Security of IND-CPA Shigeo Tsujii (Chuo Univ./SIOTP), Ryo Fujita, Masahito Gotaishi (Chuo Univ.) ISEC2019-75 SITE2019-69 LOIS2019-34 |
[more] | ISEC2019-75 SITE2019-69 LOIS2019-34 pp.87-91 |
| HWS, ISEC, SITE, ICSS, EMM, IPSJ-CSEC, IPSJ-SPT [detail] | 2018-07-26 13:45 |
Hokkaido | Sapporo Convention Center | Proposal of Multivariate Public Key Cryptosystem Based on Modulus of Numerous Prime Numbers and CRT Shigeo Tsujii, Ryo Fujita, Masahito Gotaishi (Chuo Univ.) ISEC2018-45 SITE2018-37 HWS2018-42 ICSS2018-48 EMM2018-44 |
[more] | ISEC2018-45 SITE2018-37 HWS2018-42 ICSS2018-48 EMM2018-44 pp.357-362 |
| ISEC | 2016-05-19 13:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Proposal of Multivariate Public Key CryptoSystem based on Numerous Prime Numbers and its Application to Organizational Communications
-- For Quantum Proof MPKC and IoT Environment -- Shigeo Tsujii, Ryo Fujita, Masahito Gotaishi (Chuo-Univ.) ISEC2016-5 |
[more] | ISEC2016-5 pp.17-24 |
| ISEC | 2015-09-04 14:05 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Proposal of Multivariate Public Key Cryptosystem based on numerous prime numbers and Chinese Remainder Theorem
-- For quantum proof MPKC -- Shigeo Tsujii, Ryo Fujita, Masahito Gotaishi (Chuo Univ.) ISEC2015-30 |
The studies of Multivariate Public Key Cryptosystem (MPKC) have been originated in Matsumoto-Imai cryptosystem and Tsuji... [more] | ISEC2015-30 pp.35-41 |
| IPSJ-CSEC, ISEC, SITE, ICSS, EMM, IPSJ-SPT [detail] | 2015-07-03 11:05 |
Aichi | NAGOYA TRADE & INDUSTRY CENTER | Proposal of Accelerating XL algorithm by Assigning Constants to Variables Masahito Gotaishi, Shigeo Tsujii (Chuo Univ.) ISEC2015-23 SITE2015-21 ICSS2015-33 EMM2015-31 |
The Fixing strategy, which has been long used in XL algorithm is improved so that more variables can be fi xed. This imp... [more] | ISEC2015-23 SITE2015-21 ICSS2015-33 EMM2015-31 pp.137-142 |
| ISEC | 2015-05-15 13:30 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Proposal for Multivariate Public Key Cryptosystem Based on the Difficulty of 3 Prime Numbers Factorization Problem Shigeo Tsujii, Kohtaro Tadaki, Ryo Fujita, Masahito Gotaishi (Chuo-U) ISEC2015-1 |
[more] | ISEC2015-1 pp.1-7 |
| EMM, ISEC, SITE, ICSS, IPSJ-CSEC, IPSJ-SPT [detail] | 2013-07-19 11:05 |
Hokkaido | Cryptanalysis of Rainbow Signature
-- Enrico, you should have hacked further -- Masahito Gotaishi, Shigeo Tsujii (Chuo Univ.) ISEC2013-39 SITE2013-34 ICSS2013-44 EMM2013-41 |
Thomae et al. have proposed cryptanalysis of Rainbow, a multivariate public key signature system. The methodology of so... [more] |
ISEC2013-39 SITE2013-34 ICSS2013-44 EMM2013-41 pp.275-279 |
|
| EMM, ISEC, SITE, ICSS, IPSJ-CSEC, IPSJ-SPT [detail] | 2013-07-19 11:30 |
Hokkaido | Cryptosystems for Social Organizations Managed by Receiving Administrator
-- TSK-MPKC for Hierarchical Organizations and ECC for Flat type Organizations -- Shigeo Tsujii, Hiroshi Yamaguchi, Kohtaro Tadaki, Masahito Gotaishi, Ryo Fujita (Chuo Univ.) ISEC2013-40 SITE2013-35 ICSS2013-45 EMM2013-42 |
[more] | ISEC2013-40 SITE2013-35 ICSS2013-45 EMM2013-42 pp.281-288 |
|
| EMM, ISEC, SITE, ICSS, IPSJ-CSEC, IPSJ-SPT [detail] | 2012-07-20 16:15 |
Hokkaido | Construction of the Tsujii-Shamir-Kasahara (TSK) Multivariate Public Key Cryptosystem, which relies on the Difficulty of Prime Factorization Shigeo Tsujii, Masahito Gotaishi (Chuo Univ.) ISEC2012-39 SITE2012-35 ICSS2012-41 EMM2012-31 |
A new multivariate public-key cryptosystem (MPKC) is proposed. Unlike conventional MPKC system, the polynomials in the ... [more] |
ISEC2012-39 SITE2012-35 ICSS2012-41 EMM2012-31 pp.213-216 |
|
| IT, ISEC, WBS | 2012-03-02 10:50 |
Kanagawa | Construction of the Tsujii-Shamir-Kasahara (TSK) Multivariate Public Key Cryptosystem, which relies on the Difficulty of Prime Factorization Shigeo Tsujii, Kohtaro Tadaki, Masahito Gotaishi, Ryo Fujita (Chuo Univ.) IT2011-70 ISEC2011-97 WBS2011-71 |
A new multivariate public-key cryptosystem (MPKC) with the security assured by the difficulty of the prime factoring is ... [more] | IT2011-70 ISEC2011-97 WBS2011-71 pp.149-155 |
|
| SITE, IPSJ-CE | 2011-12-17 15:15 |
Shimane | On Electronic Government System for Overcoming Contradiction between Protection and Utilization of Personal Information and Privacy
-- Part 1 -- Shigeo Tsujii, Hiroshi Yamaguchi, Masahito Gotaishi (Chuo University), Yukiyasu Tsunoo (NEC), Mikio Ihori (IOG), Takuma Yamamoto (Kanamic) SITE2011-28 |
First the concept of 3 layers of electronic government is proposed. 3 layers are mental, social system, and technologica... [more] | SITE2011-28 pp.19-24 |
|
| ISEC, LOIS | 2011-11-14 14:45 |
Osaka | Osaka Electro-Communication University | Hidden Pair of Bijection Signature system (2)
-- Discussion of the Security -- Masahito Gotaishi, Shigeo Tsujii (Chuo Univ.) ISEC2011-42 LOIS2011-36 |
The actual parameters as well as the possibility of attack are discussed on the new MPKC signature system "Hidden Pair o... [more] | ISEC2011-42 LOIS2011-36 pp.55-60 |
| ISEC, IPSJ-CSEC, SITE, ICSS, EMM, IPSJ-SPT [detail] | 2011-07-13 09:00 |
Shizuoka | Shizuoka University | Matsumoto-Imai Signature by Dual Perturbation
-- Two new Modifiers -- Masahito Gotaishi, Shigeo Tsujii (Chuo Univ.) ISEC2011-15 SITE2011-12 ICSS2011-20 EMM2011-14 |
Abstract The most basic way to cryptanalyze Multivariate Public Key Cryptosystems (MPKC) is solving the equation system ... [more] | ISEC2011-15 SITE2011-12 ICSS2011-20 EMM2011-14 pp.79-83 |
| ISEC, IT, WBS | 2011-03-04 14:15 |
Osaka | Osaka University | Proposal of Hidden Pair of Bijection Signature Scheme Masahito Gotaishi, Shigeo Tsujii (Chuo Univ.) IT2010-126 ISEC2010-130 WBS2010-105 |
[more] | IT2010-126 ISEC2010-130 WBS2010-105 pp.383-388 |
| ISEC | 2010-09-10 14:15 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | On the Extension of Rank Attacks to MPKC Masahito Gotaishi, Shigeo Tsujii (Chuo Univ.) ISEC2010-44 |
A variant of Rank Attack which is applicable to the Complementary STS is discussed. The Complementary STS is a variant ... [more] |
ISEC2010-44 pp.35-40 |
| ISEC | 2010-09-10 14:40 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Cryptanalysis of Double-Layer Square Masahito Gotaishi (Chuo Univ.) ISEC2010-45 |
[more] | ISEC2010-45 pp.41-45 |
| ISEC, IPSJ-CSEC, SITE, ICSS [detail] | 2010-07-02 09:00 |
Aomori | Hirosaki University | Proposal on MPKC Signature Scheme with Check Equations Shigeo Tsujii, Masahito Gotaishi (Chuo University) ISEC2010-23 SITE2010-19 ICSS2010-29 |
A new signature system of multivariate public key cryptosystem (MPKC), which uses separate check equations in order to p... [more] | ISEC2010-23 SITE2010-19 ICSS2010-29 pp.107-112 |
| ISEC, IPSJ-CSEC, SITE, ICSS [detail] | 2010-07-02 09:25 |
Aomori | Hirosaki University | Improvement of Rainbow MPKC Signature system Masahito Gotaishi (Chuo Univ.) ISEC2010-24 SITE2010-20 ICSS2010-30 |
Rainbow signature system is making effective use of the advantage of multivariate public key cryptosystem (MPKC) and o... [more] |
ISEC2010-24 SITE2010-20 ICSS2010-30 pp.113-117 |
| ISEC | 2009-12-16 16:10 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Improvement of the Internal Perturbation Modifier
-- An example of Perturbed Matsumoto-Imai -- Masahito Gotaishi, Shigeo Tsujii (Chuo Univ.) ISEC2009-78 |
Internal Perturbation is among the modifiers of Multivariate Public Key Cryptosystems designed to reinforce the existing... [more] | ISEC2009-78 pp.51-55 |
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