Fumitaka HOSHINO


Opcount: A Pseudo-Code Performance Estimation System for Pairing-Based Cryptography
Masayuki ABE Fumitaka HOSHINO Miyako OHKUBO 
Publication:   
Publication Date: 2019/09/01
Vol. E102-A  No. 9  pp. 1285-1292
Type of Manuscript:  PAPER
Category: Cryptography and Information Security
Keyword: 
pairingperformance estimationbenchmarktight security
 Summary | Full Text:PDF

Fast and Scalable Bilinear-Type Conversion Method for Large Scale Crypto Schemes
Masayuki ABE Fumitaka HOSHINO Miyako OHKUBO 
Publication:   
Publication Date: 2019/01/01
Vol. E102-A  No. 1  pp. 251-269
Type of Manuscript:  PAPER
Category: Cryptography and Information Security
Keyword: 
pairing-based cryptographybilinear-type conversioninteger programmingcryptographic scheme designGroth-Sahai proofs
 Summary | Full Text:PDF

id-eCK Secure ID-Based Authenticated Key Exchange on Symmetric and Asymmetric Pairing
Atsushi FUJIOKA Fumitaka HOSHINO Tetsutaro KOBAYASHI Koutarou SUZUKI Berkant USTAOLU Kazuki YONEYAMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/06/01
Vol. E96-A  No. 6  pp. 1139-1155
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
identity-based authenticated key exchangegap Bilinear Diffie-Hellman assumptionidentity-based extended Canetti-Krawczyk modelrandom oracle model
 Summary | Full Text:PDF

Candidate One-Way Functions on Non-Supersingular Elliptic Curves
Taiichi SAITO Fumitaka HOSHINO Shigenori UCHIYAMA Tetsutaro KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/01/01
Vol. E89-A  No. 1  pp. 144-150
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Elliptic Curve Cryptography
Keyword: 
one-way functionpairing-based cryptosystemdistortion mapthe Weil and the Tate pairingsco-Diffie-Hellman problem
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Non-Supersingular Elliptic Curves for Pairing-Based Cryptosystems
Taiichi SAITO Fumitaka HOSHINO Shigenori UCHIYAMA Tetsutaro KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/05/01
Vol. E87-A  No. 5  pp. 1203-1205
Type of Manuscript:  Special Section LETTER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
non-supersingular elliptic curvepairing-based cryptosystemthe Weil and the Tate pairings
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Lenient/Strict Batch Verification in Several Groups
Fumitaka HOSHINO Masayuki ABE Tetsutaro KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/01/01
Vol. E86-A  No. 1  pp. 64-72
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Symmetric Ciphers and Hash Functions
Keyword: 
batch verificationelliptic curve cryptosystem
 Summary | Full Text:PDF

A Cyclic Window Algorithm for Elliptic Curves over OEF
Tetsutaro KOBAYASHI Fumitaka HOSHINO Kazumaro AOKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/01/01
Vol. E86-A  No. 1  pp. 121-128
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Asymmetric Ciphers
Keyword: 
cyclic window algorithmoptimal extension fieldbase-φ expansionelliptic curve cryptosystem
 Summary | Full Text:PDF