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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| ISEC, SITE, LOIS | 2022-11-18 16:55 |
Online | Online | Reducing Authentication Data Size in Decentralized Blacklistable Anonymous Credential System Using DualRing Atsuki Iriboshi, Toru Nakanishi, Katsunobu Imai (Hiroshima Univ.)  ISEC2022-44 SITE2022-48 LOIS2022-28 |
For privacy protection, blacklistable anonymous credential systems have been proposed, where a user is authenticated wit... [more] | ISEC2022-44 SITE2022-48 LOIS2022-28 pp.85-91 |
| SITE, ISEC, LOIS | 2018-11-04 14:40 |
Fukuoka | Proposal of Anonymous Attribute Credential System that can Prove CNF Formulas includeing Negative Attribute Ryo Okishima, Toru Nakanishi (Hiroshima Univ.) ISEC2018-78 SITE2018-56 LOIS2018-38 |
In recent years, electronic identification (eID) has become widespread, and this eID is used to access buildings and appl... [more] | ISEC2018-78 SITE2018-56 LOIS2018-38 pp.79-85 |
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| ISEC, COMP | 2017-12-21 16:15 |
Kochi | Eikokuji Campus, Kochi University of Technology | Blacklistable Anonymous Credential System with Reputation Using Accumulator Takeshi Kanatani, Toru Nakanishi (Hiroshima Univ.) ISEC2017-81 COMP2017-35 |
Conventional anonymous authentication such as group signature has a problem that the ID administrator can specify the au... [more] | ISEC2017-81 COMP2017-35 pp.59-65 |
| LOIS, ISEC, SITE | 2017-11-09 16:30 |
Kyoto | Anonymous Attribute-Authentication Scheme in Multi-authority Setting on Key Generation Hiroaki Anada (U.Nagasaki), Seiko Arita (IISEC) ISEC2017-59 SITE2017-41 LOIS2017-36 |
In a setting that a single user is given plural credentials on her attributes and related secret keys, an authentication... [more] | ISEC2017-59 SITE2017-41 LOIS2017-36 pp.63-70 |
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| COMP, ISEC | 2016-12-21 09:30 |
Hiroshima | Hiroshima University | Improvements of Blacklistable Anonymous Credential System Using Accumulator Yuu Aikou, Toru Nakanishi (Hiroshima Univ) ISEC2016-70 COMP2016-31 |
In current ID-based user authentication schemes, privacy issues may occur, since users’ behavior histories are collected... [more] | ISEC2016-70 COMP2016-31 pp.1-7 |
| LOIS, ISEC, SITE | 2015-11-06 16:45 |
Kanagawa | Kanagawa Univ. | Reducing Authentication Time in Blacklistable Anonymous Credential System Using Accumulator Yuu Aikou, Toru Nakanishi (Hiroshima Univ) ISEC2015-47 SITE2015-34 LOIS2015-41 |
In current ID-based user authentication schemes, privacy issues may occur, since users' behavior histories are collected... [more] | ISEC2015-47 SITE2015-34 LOIS2015-41 pp.75-80 |
| ISEC | 2014-09-05 14:45 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Efficient Proofs for Monotone Formulas on Attributes Excluding Restriction in Anonymous Credential System Shahidatul Sadiah (Okayama Univ.), Toru Nakanishi (Hiroshima Univ.), Nobuo Funabiki (Okayama Univ.) ISEC2014-50 |
An anonymous credential system on attributes allows a user to convince a service provider anonymously that he/she owns t... [more] | ISEC2014-50 pp.21-26 |
| IA, ICSS | 2013-06-20 14:35 |
Niigata | Ao-re Nagaoka | Three Party Secure Anonymous Authentication Scheme with Hard Learning Problems Kotaro Kishibe (Kobe Univ.), Ryoichi Isawa (NICT), Masakatu Morii (Kobe Univ.) IA2013-3 ICSS2013-3 |
In late years, with the spread of RFID, the lightweight certification protocol between RFID tag and readers attracts att... [more] | IA2013-3 ICSS2013-3 pp.13-18 |
| VLD | 2011-03-03 11:25 |
Okinawa | Okinawaken-Danjo-Kyodo-Sankaku Center | A Low Power Hardware Architecture for Parallel Group Signature Computation Sumio Morioka, Jun Furukawa, Kazue Sako (NEC) VLD2010-128 |
We've investigated architecture of H/W accelerators for parallel group signature computation, which will be used in data... [more] | VLD2010-128 pp.69-74 |
| NS, RCS (Joint) |
2010-12-17 13:20 |
Okayama | Okayama Univ. | An Implementation of a Pairing-Based Anonymous Credential System with Constant Complexity Amang Sudarono, Toru Nakanishi, Nobuo Funabiki (Okayama Univ.) NS2010-135 |
An anonymous credential system allows the user to convince a verifier of the possession of a certificate issued by the i... [more] | NS2010-135 pp.179-184 |
| ISEC | 2009-09-25 14:15 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Improvement of Anonymous Authentication System Using Proxies and Its Application to an Anonymous Bulletin Board Masaya Yano, Toru Nakanishi, Nobuo Funabiki (Okayama Univ.) ISEC2009-46 |
Our research group has implemented the anonymous authentication system based on a group signature scheme for Web service... [more] | ISEC2009-46 pp.45-50 |
| IA, SITE | 2009-03-05 16:20 |
Kumamoto | A Proposal of Distributed Authentication Platform and Public Identifiers
-- On Appropriateness of Web Traversal Anonymous Authentication using OpenID -- Aya Okashita (NEC) SITE2008-53 IA2008-76 |
In many virtual worlds on the Web, the account registration by anonymity is done without doing the personal identificati... [more] | SITE2008-53 IA2008-76 pp.55-60 |
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| ISEC | 2007-12-19 15:05 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | An Implementation of a Privacy Enhancing SSL/TLS Protocol Based on Group Signatures Hiroki Obayashi, Toru Nakanishi, Jun Kawashima, Nobuo Funabiki (Okayama Univ.) ISEC2007-123 |
While various Web services have spread, a lot of private information leaks have been often caused by the service vendors... [more] | ISEC2007-123 pp.79-84 |
| ISEC, SITE, IPSJ-CSEC | 2007-07-19 17:00 |
Hokkaido | Future University-Hakodate | A Proposal of Key Management Scheme Using Anonymous Biometrics on Public Key Infrastructure Akitoshi Izumi (Kyushu Univ), Yoshifumi Ueshige (Nagasaki Univ), Kouichi Sakurai (Kyushu Univ) ISEC2007-38 SITE2007-32 |
We propose the scheme that stores protected secret key which is made by combination of biometrics and secret key in the... [more] |
ISEC2007-38 SITE2007-32 pp.153-158 |
| ISEC | 2005-12-16 14:15 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Anonymous Password-Based Authenticated Key Exchange Duong Viet Quang, Akihiro Yamamura, Hidema Tanaka (NICT) |
We propose and discuss an {\it anonymous password-based authenticated key exchange scheme} that allows a user in a group... [more] | ISEC2005-116 pp.35-42 |
| ISEC, IPSJ-CSEC | 2004-07-21 15:10 |
Tokushima | Tokushima Univ. | Refrehshable Tokens with Optional Linkability Rie Shigetomi (Univ. of Tokyo), Akira Otsuka (IPA), Keith Martin (Royal Holloway), Hideki Imai (Univ. of Tokyo) |
As more services are provided digitally and digital service providers collect more information about users, potential pr... [more] | ISEC2004-64 pp.165-172 |
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