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IEICE Trans

Hikaru TSUCHIDA

Multi-Key Homomorphic Encryption with Threshold Re-Encryption via (Replicated) Additive Secret Sharing
Akira NAKASHIMA Yukimasa SUGIZAKI Hikaru TSUCHIDA Takuya HAYASHI Koji NUIDA Kengo MORI Toshiyuki ISSHIKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2026/03/01
Vol. E109-A  No. 3  pp. 246-258
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
privacy-enhancing technologies, multi-key homomorphic encryption, threshold proxy re-encryption, secret sharing scheme, 
 Summary | Full Text:PDF
Constant-Round Fair SS-4PC for Private Decision Tree Evaluation
Hikaru TSUCHIDA Takashi NISHIDE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2022/09/01
Vol. E105-A  No. 9  pp. 1270-1288
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: Cryptography and Information Security
Keyword: 
privacy preserving machine learning, private decision tree evaluation, multiparty computation, constant-round protocol, 
 Summary | Full Text:PDF
Private Decision Tree Evaluation with Constant Rounds via (Only) SS-3PC over Ring and Field
Hikaru TSUCHIDA Takashi NISHIDE Yusaku MAEDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2022/03/01
Vol. E105-A  No. 3  pp. 214-230
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
private decision tree evaluation, multiparty computation, constant-round protocol, 
 Summary | Full Text:PDF