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| Chair |
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Shinsaku Kiyomoto (KDDI Research) |
| Vice Chair |
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Katsuyuki Takashima (Waseda Univ.), Kenta Takahashi (HITACHI) |
| Secretary |
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Hiroki Okada (KDDI Research), Atsushi Takayasu (Univ. of Tokyo) |
| Assistant |
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Dai Watanabe (HITACHI) |
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| Conference Date |
Tue, May 26, 2026 10:00 - 16:45 |
| Topics |
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| Conference Place |
Kikai-Shinko-Kaikan Bldg. (Kenshu-2 Room in B3F) |
| Address |
3-5-8, Shibakoen, Minato-ku, Tokyo 105-0011, Japan. |
Copyright
and
reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
| Registration Fee |
This workshop will be held as the IEICE workshop in fully electronic publishing. Registration fee will be necessary except the speakers and participants other than the participants to workshop(s) in non-electronic publishing. See the registration fee page. We request the registration fee or presentation fee to participants who will attend the workshop(s) on ISEC. |
Tue, May 26 AM
Chair: Yuji Suga
10:00 - 11:15 |
| (1) |
10:00-10:25 |
[Invited Talk]
Impossibility of Four-Card AND Protocols with a Single Closed Shuffle (from CANS 2025)  ISEC2026-1 |
Shizuru Iino (UEC), Shota Ikeda (IU), Kazumasa Shinagawa (UT/AIST), Yang Li, Kazuo Sakiyama (UEC), Daiki Miyahara (UEC/AIST) |
| (2) |
10:25-10:50 |
[Invited Talk]
Efficient Card-Based Protocols for Symmetric and Partially Doubly Symmetric Functions (from IWSEC 2025) ISEC2026-2 |
Shota Ikeda, Yoshihiro Takahashi (IU), Kazumasa Shinagawa (UT/AIST), Koji Nuida (KU/AIST) |
| (3) |
10:50-11:15 |
[Invited Talk]
Key Recovery Attacks on Unpatched MEGA from Four Queries: Solving Approximate Divisor Problem with Help of Approximation of Squared Divisor (from ACNS 2025) ISEC2026-3 |
Naoki Shimoe, Noboru Kunihiro (Tsukuba Univ.) |
| |
11:15-11:30 |
Break ( 15 min. ) |
Tue, May 26 PM
Chair: Dai Watanabe
11:30 - 12:20 |
| (4) |
11:30-11:55 |
[Invited Talk]
Proposal of An SVP Solver on Prime Cyclotomic Lattices (from ProvSec 2025) ISEC2026-4 |
Kazutaka Toda, Yuntao Wang (UEC) |
| (5) |
11:55-12:20 |
[Invited Talk]
Collision Attacks on SPONGENT with Grouping Method (from SAC 2025) ISEC2026-5 |
Keita Toyama (University of Hyogo), Kosei Sakamoto (Mitsubishi Electric), Takanori Isobe (The University of Osaka) |
| |
12:20-12:40 |
Awarding ceremony ( 20 min. ) |
| |
12:40-14:00 |
Lunch break ( 80 min. ) |
Tue, May 26 PM
Chair: Hikaru Tsuchida
14:00 - 15:15 |
| (6) |
14:00-14:25 |
Searching for the Maximum Differential Characteristic Probability of the Block Cipher LTLBC ISEC2026-6 |
Ryotaro Kai, Naoki Shibayama, Yasutaka Igarashi (Science Univ) |
| (7) |
14:25-14:50 |
Efficient Lattice-based Forward Secure Signature without Random Oracles ISEC2026-7 |
Ren Ishibashi (Yokohama National Univ./Canon), Sohto Chiku, Junji Shikata (Yokohama National Univ.) |
| (8) |
14:50-15:15 |
Design and Evaluation of an Autonomous Attack Agent Using POMDP
-- Implementation and Experimental Evaluation in a Network Environment -- ISEC2026-8 |
Daichi Mori (Univ. Tsukuba), Hirofumi Yamaki (Tokyo Denki Univ.) |
| |
15:15-15:30 |
Break ( 15 min. ) |
Tue, May 26 PM
Chair: Hiroki Okada
15:30 - 16:45 |
| (9) |
15:30-15:55 |
FPGA Implementation of Elliptic Curve Scalar Multiplication Using High-Level Synthesis ISEC2026-9 |
Masaaki Shirase (FUN) |
| (10) |
15:55-16:20 |
A Digital Signature Based on the Me Operation on Elliptic Curves ISEC2026-10 |
Masaaki Shirase (FUN) |
| (11) |
16:20-16:45 |
Ring-Based Multi-Party Computation with Friends and Foes ISEC2026-11 |
Hikaru Tsuchida (SIT) |
| Announcement for Speakers |
| General Talk | Each speech will have 20 minutes for presentation and 5 minutes for discussion. |
| Contact Address and Latest Schedule Information |
| ISEC |
Technical Committee on Information Security (ISEC) [Latest Schedule]
|
| Contact Address |
Atsushi Takayasu (The University of Tokyo)
E- : i c-c  (to ISEC secretaries) |
Last modified: 2026-05-25 14:54:16
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