研究業績リスト
ジャーナル論文 - rm_published_papers: Scientific Journal
Adversarial Beats: Feasibility Study of Spoofed Arrhythmia in Automated Electrocardiogram Diagnosis
公開済 03/12/2025
ACM Transactions on Cyber-Physical Systems
ジャーナル論文 - rm_published_papers: Scientific Journal
To Go or Not to Go: Shedding Light on Traffic Light Signal Manipulation and Defense Strategies
公開済 03/12/2025
ACM Transactions on Cyber-Physical Systems
ジャーナル論文 - rm_published_papers: Others
Beyond-Birthday-Bound Security with HCTR2: Cascaded Construction and Tweak-based Key Derivation
公開済 12/2025
Asiacrypt 2025
ジャーナル論文 - rm_published_papers: Others
Poster: Recapture Detection Using Disparity Map Obtained from Dual-Pixel Image Sensors
公開済 10/2025
ACM CCS 2025
ジャーナル論文 - rm_published_papers: Others
The Multi-User Security of GCM-SST and Further Enhancements
公開済 10/2025
Information Security Conference (ISC 2025)
ジャーナル論文 - rm_published_papers: In Book
The Exact Multi-User Security of Key-Alternating Feistel Ciphers with a Single Permutation
公開済 17/08/2025
Crypto 2025, 404 - 436
ジャーナル論文 - rm_published_papers: Others
公開済 08/2025
USENIX Security Symposium
ジャーナル論文 - rm_published_papers: Others
A High-Order Masking with Load-Delay-Equalized WDDL for Provable Side-Channel Security
公開済 06/2025
2025 Symposium on VLSI Technology and Circuits
ジャーナル論文 - rm_published_papers: Scientific Journal
How Lasers Exploit Photoacoustic and Photoelectric Phenomena to Inject Signals into MEMS Microphones
公開済 05/2025
J. Hardw. Syst. Secur, 9, 1, 38 - 54
ジャーナル論文 - rm_published_papers: Scientific Journal
Committing Wide Encryption Mode with Minimum Ciphertext Expansion
公開済 07/03/2025
IACR Transactions on Symmetric Cryptology, 2025, 1, 44 - 69
We propose a new wide encryption (WE) mode of operation that satisfies robust authenticated encryption (RAE) and committing security with minimum ciphertext expansion. In response to the recent call for proposal by NIST, WE and its tweakable variant, TWE, are attracting much attention in the last few years. Combined with the encode-then-encipher (EtE) construction, TWE offers an RAE that provides robustness against wide range of misuses. The list of desired properties for WE-based authenticated encryption in the NIST standardization includes committing security that considers an attacker who generates ciphertexts that can be decrypted with different decryption contexts, but TWE-based EtE does not provide good committing security, and there is a recent constant-time CMT-4 attack (Chen et al., ToSC 2023(4)). Improving CMT-4 security requires considerable ciphertext expansion, and the state-of-the-art scheme expands the ciphertext by srae + 2scmt bits from an original message to achieve srae-bit RAE and scmt-bit CMT-4 security. Our new WE mode, FFF, addresses the issue by achieving srae-bit RAE and scmt-bit CMT-4 security only with max{scmt, srae} bits of ciphertext expansion. Our design is based on the committing concealer proposed by Bellare et al., and its extension to WE (cf. tag-based AE) while satisfying RAE security is the main technical innovation.