Naoto YANAI


Efficient Secure Neural Network Prediction Protocol Reducing Accuracy Degradation
Naohisa NISHIDA Tatsumi OBA Yuji UNAGAMI Jason PAUL CRUZ Naoto YANAI Tadanori TERUYA Nuttapong ATTRAPADUNG Takahiro MATSUDA Goichiro HANAOKA 
Publication:   
Publication Date: 2020/12/01
Vol. E103-A  No. 12  pp. 1367-1380
Type of Manuscript:  Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: 
Keyword: 
secure computationsecret sharingmachine learningbinarized neural networks
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Meeting Tight Security for Multisignatures in the Plain Public Key Model
Naoto YANAI 
Publication:   
Publication Date: 2018/09/01
Vol. E101-A  No. 9  pp. 1484-1493
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
multisignaturesplain public key modelprovable securitytight reductionrandom oracle modelCDH problem
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Tighter Reductions for Deterministic Identity-Based Signatures
Naoto YANAI Toru FUJIWARA 
Publication:   
Publication Date: 2018/01/01
Vol. E101-A  No. 1  pp. 64-76
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
identity-based signaturesdeterministic identity-based signaturesprovable securityCDH problemrandom oracle modeltight reduction
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Provably Secure Gateway Threshold Password-Based Authenticated Key Exchange Secure against Undetectable On-Line Dictionary Attack
Yukou KOBAYASHI Naoto YANAI Kazuki YONEYAMA Takashi NISHIDE Goichiro HANAOKA Kwangjo KIM Eiji OKAMOTO 
Publication:   
Publication Date: 2017/12/01
Vol. E100-A  No. 12  pp. 2991-3006
Type of Manuscript:  PAPER
Category: Cryptography and Information Security
Keyword: 
password-based authenticated key exchange (PAKE)threshold cryptography
 Summary | Full Text:PDF | (Errata[Uploaded on January 1,2018])

Provably Secure Structured Signature Schemes with Tighter Reductions
Naoto YANAI Tomoya IWASAKI Masaki INAMURA Keiichi IWAMURA 
Publication:   
Publication Date: 2017/09/01
Vol. E100-A  No. 9  pp. 1870-1881
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
structured signaturesidentity-based structured signaturesprovable securityCDH problemrandom oracle modeltight reduction
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A Secure Structured Multisignature Scheme Based on a Non-commutative Ring Homomorphism
Naoto YANAI Eikoh CHIDA Masahiro MAMBO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/06/01
Vol. E94-A  No. 6  pp. 1346-1355
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
multisignature schemestructured multisignature schemehomomorphic schemenon-commutative ring homomorphismrandom oracle model
 Summary | Full Text:PDF