Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
ISEC |
2023-05-17 14:20 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Equivalent Secret Key-Recovery Attack on Knapsack Public Key Cryptosystem Ryuichi Sakai, Yasuyuki Murakami (OECU) ISEC2023-9 |
Shamir proposed an attack on Merkle-Hellman’s knapsack public key cryptosystem. This attack uses integer programming to ... [more] |
ISEC2023-9 pp.49-53 |
ISEC |
2018-09-07 14:25 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
New Public key attack on MH knapsak PKC Ryuichi Sakai, Yasuyuki Murakami (OECU) ISEC2018-58 |
[more] |
ISEC2018-58 pp.39-42 |
IT, EMM |
2018-05-17 16:25 |
Tokyo |
Ookayama Campus, Tokyo Institute of Technology |
Public key attack on knapsak PKC based on subset sum decision problem Ryuichi Sakai, Yasuyuki Murakami (Osaka Electro-Communication Univ.) IT2018-6 EMM2018-6 |
In 2012, Murakami, Hamasho and Kasahara have proposed a knapsack PKC based on the subset sum decision problem. An attack... [more] |
IT2018-6 EMM2018-6 pp.31-34 |
WBS, IT, ISEC |
2018-03-09 16:10 |
Tokyo |
Katsusika Campas, Tokyo University of Science |
Attacks on several Multivariate PKCs
-- Attack on K(AVII)MVPKC -- Ryuichi Sakai (Osaka Electro-Communication Univ.), Masao Kasahara (Waseda Univ.) IT2017-138 ISEC2017-126 WBS2017-119 |
One of the anthers, Kasahara, have been proposed several public key cryptosystems based on multivariate polynomials wit... [more] |
IT2017-138 ISEC2017-126 WBS2017-119 pp.207-212 |
ISEC |
2015-09-04 13:40 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Proposal of new classes of pseudo-random multivariate PKC, PR•MPKC
-- Along with a comment on K(II) Transformation -- Masao Kasahara (Waseda Univ./Chuo Univ.), Ryuichi Sakai (OECU) ISEC2015-29 |
[more] |
ISEC2015-29 pp.27-34 |
IT |
2014-07-18 15:25 |
Hyogo |
Kobe University |
New Method for Factoring RSA Moduli with Implicit Hint Ryuichi Sakai (OECU), Masao Kasahara (Chuo Univ.) IT2014-36 |
[more] |
IT2014-36 pp.139-142 |
IT, ISEC, WBS |
2010-03-05 10:15 |
Nagano |
Nagano-Engineering Campus, Shinshu University |
Bio-metric Authentication using Motion Image of Speakers Face Mari Ozaki, Ryuichi Sakai (Osaka Electro-Comm Univ.) IT2009-133 ISEC2009-141 WBS2009-112 |
[more] |
IT2009-133 ISEC2009-141 WBS2009-112 pp.399-401 |
ISEC |
2009-05-22 16:35 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Cryptanalysis on 2 Dimensional Subset-sum Public Key Cryptosystem Ryuichi Sakai (Osaka Electro-Comm Univ.) ISEC2009-14 |
[more] |
ISEC2009-14 pp.89-92 |
ISEC, SITE, IPSJ-CSEC |
2008-07-25 14:15 |
Fukuoka |
Fukuoka Institute of System LSI Design Industry |
Traitor Tracing from ID based Broadcast Encryption Ryuichi Sakai (OECU) ISEC2008-48 |
ID based broadcast encryption scheme based on the key setting of Mitsunari-Ssakai-Kasahara
traitor tracing has several... [more] |
ISEC2008-48 pp.95-100 |
ISEC |
2006-12-13 12:55 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Key Generation Schemes for the ID base Public Key Cyrptosystems. Ryuichi Sakai (Osaka Electro-Comm Univ.) |
[more] |
ISEC2006-105 pp.25-28 |
ISEC |
2005-12-16 13:50 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
New Efficient Voting Scheme Ryuichi Sakai (OECU), Masao Kasahara (OGU) |
[more] |
ISEC2005-115 pp.31-34 |
ISEC, IPSJ-CSEC, SITE |
2005-07-21 14:40 |
Iwate |
Iwate Prefectural University |
An (N,K) Threshold Signature Scheme with Public Keys of Small Size Masao Kasahara (Osaka Gakuin Univ.), Ryuichi Sakai (Osaka Electro-Comm. Univ.) |
[more] |
ISEC2005-35 SITE2005-33 pp.195-200 |
ISEC, IPSJ-CSEC, SITE |
2005-07-21 15:05 |
Iwate |
Iwate Prefectural University |
Meta Ring Signature Hiroyuki Okazaki (KCG), Ryuichi Sakai (OECU), Masao Kasahara (OGU) |
In this paper, we propose a new concept ``Meta Ring Signature''.
Suppose that a signature text work as a public key,
... [more] |
ISEC2005-36 SITE2005-34 pp.201-204 |
ISEC |
2005-05-18 15:20 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Password authentication with tablet device Ryuichi Sakai, Takenao Kukita (Osaka Electro-Communication Univ.) |
[more] |
ISEC2005-6 pp.35-36 |
ISEC |
2005-05-18 15:45 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
A Construction of Public-Key Cryptosystem based on Singular Simultaneous Equations and Its Variants Masao Kasahara (Osaka Gakuin Univ.), Ryuichi Sakai (Osaka Electro-Comm. Univ.) |
[more] |
ISEC2005-7 pp.37-42 |
ISEC, IPSJ-CSEC |
2004-07-20 13:30 |
Tokushima |
Tokushima Univ. |
Some Extensions of Multi-Variate Public Key Cryptosystems Ryuichi Sakai (Osaka Electro-Communication Univ.), Masao Kasahara (Osaka Gakuin Univ.) |
[more] |
ISEC2004-18 pp.35-38 |
ISEC, IPSJ-CSEC |
2004-07-20 13:55 |
Tokushima |
Tokushima Univ. |
A Construction of Public Key Cryptosystem based on Random Singular and Non-singular Simultaneous Equations over Extension Field Masao Kasahara (Osaka Gakuin Univ.), Ryuichi Sakai (Osaka Electro-Communication Univ.) |
[more] |
ISEC2004-19 pp.39-44 |