IEICE Technical Report

Online edition: ISSN 2432-6380

Information Security

Workshop Date : 2026-05-26 / Issue Date : 2026-05-19

ISEC2026-1
[Invited Talk] Impossibility of Four-Card AND Protocols with a Single Closed Shuffle (from CANS 2025)
Shizuru Iino (UEC), Shota Ikeda (IU), Kazumasa Shinagawa (UT/AIST), Yang Li, Kazuo Sakiyama (UEC), Daiki Miyahara (UEC/AIST)
p. 1

ISEC2026-2
[Invited Talk] Efficient Card-Based Protocols for Symmetric and Partially Doubly Symmetric Functions (from IWSEC 2025)
Shota Ikeda, Yoshihiro Takahashi (IU), Kazumasa Shinagawa (UT/AIST), Koji Nuida (KU/AIST)
p. 2

ISEC2026-3
[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)
Naoki Shimoe, Noboru Kunihiro (Tsukuba Univ.)
p. 3

ISEC2026-4
[Invited Talk] Proposal of An SVP Solver on Prime Cyclotomic Lattices (from ProvSec 2025)
Kazutaka Toda, Yuntao Wang (UEC)
p. 4

ISEC2026-5
[Invited Talk] Collision Attacks on SPONGENT with Grouping Method (from SAC 2025)
Keita Toyama (University of Hyogo), Kosei Sakamoto (Mitsubishi Electric), Takanori Isobe (The University of Osaka)
p. 5

ISEC2026-6
Searching for the Maximum Differential Characteristic Probability of the Block Cipher LTLBC
Ryotaro Kai, Naoki Shibayama, Yasutaka Igarashi (Science Univ)
pp. 6 - 13

ISEC2026-7
Efficient Lattice-based Forward Secure Signature without Random Oracles
Ren Ishibashi (Yokohama National Univ./Canon), Sohto Chiku, Junji Shikata (Yokohama National Univ.)
pp. 14 - 21

ISEC2026-8
Design and Evaluation of an Autonomous Attack Agent Using POMDP -- Implementation and Experimental Evaluation in a Network Environment --
Daichi Mori (Univ. Tsukuba), Hirofumi Yamaki (Tokyo Denki Univ.)
pp. 22 - 29

ISEC2026-9
FPGA Implementation of Elliptic Curve Scalar Multiplication Using High-Level Synthesis
Masaaki Shirase (FUN)
pp. 30 - 37

ISEC2026-10
A Digital Signature Based on the Me Operation on Elliptic Curves
Masaaki Shirase (FUN)
pp. 38 - 45

ISEC2026-11
Ring-Based Multi-Party Computation with Friends and Foes
Hikaru Tsuchida (SIT)
pp. 46 - 51

Note: Each article is a technical report without peer review, and its polished version will be published elsewhere.

The Institute of Electronics, Information and Communication Engineers (IEICE), Japan