暗号と情報セキュリティワークショップ（WCIS）は、国内の情報セキュリティ研究の活性化を目的として、 3大IACR カンファレンス (CRYPTO, EUROCRYPT, ASIACRYPT) や4大セキュリティ会議 (ACM CCS, IEEE S&P, Usenix Security, NDSS) 採録論文を中心に先進的な研究を日本国内で紹介して頂く招待講演を中心としたイベントです。 2018年以前にISEC研究専門委員会によって5月、9月、12月の研究会内で実施していた3大IACR カンファレンス発表論文に関する招待講演の後継となるイベントとして2019年より年に1回の頻度で実施しています。
| 10:00-10:30 | The Security of ML-DSA against Fault-Injection Attacks (from Asiacrypt 2025) |
○ Haruhisa Kosuge (NTT Social Informatics Laboratories), Keita Xagawa (Technology Innovation Institute) |
| 10:30-11:00 | Is the Hard-Label Cryptanalytic Model Extraction Really Polynomial? (from Crypto 2026) |
Akira Ito (Tohoku University), Takayuki Miura (NTT Social Informatics Laboratories), ○ Yosuke Todo (NTT Social Informatics Laboratories) |
| 11:00-11:30 | New Tight Bounds on the Local Leakage Resilience of the Additive (n,n)-Threshold Scheme Determined by the Eigenvalues of Circulant Matrices (from Asiacrypt 2025) |
○ Hiroki Koga (University of Tsukuba), Hiroto Abe (University of Tsukuba) |
| 11:30-12:00 | BADControl: Backdoor Attacks Against Control Systems (from USENIX Security 2026) |
Luis Burbano (University of California, Santa Cruz), ○ Hampei Sasahara (The University of Tokyo), Ruoyu Song (Purdue University), Z. Berkay Celik (Purdue University), Alvaro A. Cardenas (University of California, Santa Cruz) |
| 12:00-13:30 | 休憩 |
| 13:30-14:00 | On the Cryptographic Futility of Non-collapsing Measurements (from Eurocrypt 2026) |
Kabir Tomer (University of Illinois Urbana-Champaign), Dakshita Khurana (University of Illinois Urbana-Champaign, NTT Research), Tomoyuki Morimae (Kyoto University), ○ Yuki Shirakawa (Kyoto University), Takashi Yamakawa (NTT), Alper Çakan (Carnegie Mellon University) |
| 14:00-14:30 | Key Recovery Attacks on UOV Using $p^\ell$-truncated Polynomial Rings (from Crypto 2026) |
○ Hiroki Furue (NTT Social Informatics Laboratories), Yasuhiko Ikematsu (Kyushu University) |
| 14:30-15:00 | Revisiting PQ WireGuard: A Comprehensive Security Analysis With a New Design Using Reinforced KEMs (from IEEE S&P 2026) |
○ Keitaro Hashimoto (AIST), Shuichi Katsumata (AIST, PQShield), Guilhem Niot (PQShield, Univ Rennes, CNRS, IRISA), Thom Wiggers (PQShield) |
| 15:00-15:20 | 休憩 |
| 15:20-15:50 | PILOT: Command-line Interface Fuzzing via Path-Guided, Iterative Large Language Model Prompting (from IEEE S&P 2026) |
○ Momoko Shiraishi (The University of Tokyo), Yinzhi Cao (Johns Hopkins University), Takahiro Shinagawa (The University of Tokyo) |
| 15:50-16:20 | Surpassing the Word Size Limitation of TFHE with Noise Calibration (from ACM CCS 2025) |
○ Takumi Nishimura (The University of Tokyo), Kazunari Tozawa (The University of Tokyo), Kunihiko Sadakane (The University of Tokyo) |
| 16:20-16:50 | The Heat is On: Understanding and Mitigating Vulnerabilities of Thermal Image Perception in Autonomous Systems (from NDSS 2026) |
Sri Hrushikesh Varma Bhupathiraju (University of Florida), Shaoyuan Xie (University of California, Irvine), Michael Clifford (Toyota InfoTech Labs), Qi Alfred Chen (University of California, Irvine), ○ Takeshi Sugawara (The University of Electro-Communications), Sara Rampazzi (University of Florida) |
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