IEICE Trans

Yuichi KOMANO

Efficient Algorithms for Sign Detection in RNS Using Approximate Reciprocals Shinichi KAWAMURA Yuichi KOMANO Hideo SHIMIZU Saki OSUKA Daisuke FUJIMOTO Yuichi HAYASHI Kentaro IMAFUKU
Publication: Publication Date: 2021/01/01 Vol. E104-A No. 1 pp. 121-134 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Keyword: Chinese remainder, residue number system, sign detection, comparison,
	Summary \| Full Text:PDF(2.8MB)

BS-CPA: Built-In Determined Sub-Key Correlation Power Analysis Yuichi KOMANO Hideo SHIMIZU Shinichi KAWAMURA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2010/09/01 Vol. E93-A No. 9 pp. 1632-1638 Type of Manuscript: PAPER Category: Cryptography and Information Security Keyword: side channel attacks, power analysis, CPA, Hamming weight and Hamming distance models, DPA contest,
	Summary \| Full Text:PDF(426.9KB)

Provably Secure Multisignatures in Formal Security Model and Their Optimality Yuichi KOMANO Kazuo OHTA Atsushi SHIMBO Shinichi KAWAMURA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/01/01 Vol. E91-A No. 1 pp. 107-118 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Signatures Keyword: multisignatures, trapdoor one-way permutation (TOWP), claw-free permutation (CFP), provably secure, random oracle model,
	Summary \| Full Text:PDF(346.7KB)

Provably Secure Untraceable Electronic Cash against Insider Attacks Yoshikazu HANATANI Yuichi KOMANO Kazuo OHTA Noboru KUNIHIRO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2007/05/01 Vol. E90-A No. 5 pp. 980-991 Type of Manuscript: Special Section PAPER (Special Section on Discrete Mathematics and Its Applications) Category: Keyword: blind multisignature, electronic cash, provable security, random oracle model, insider attacks,
	Summary \| Full Text:PDF(279.5KB)

Fair Exchange of Signatures with Multiple Signers Yuichi KOMANO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2007/05/01 Vol. E90-A No. 5 pp. 969-979 Type of Manuscript: Special Section PAPER (Special Section on Discrete Mathematics and Its Applications) Category: Keyword: fair exchange of signatures, concurrent signatures, multisignatures, provably secure, random oracle model,
	Summary \| Full Text:PDF(218.5KB)

Toward the Fair Anonymous Signatures: Deniable Ring Signatures Yuichi KOMANO Kazuo OHTA Atsushi SHIMBO Shinichi KAWAMURA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2007/01/01 Vol. E90-A No. 1 pp. 54-64 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Signatures Keyword: group signatures, ring signatures, DLP, CDH, DDH, random oracle model,
	Summary \| Full Text:PDF(284.1KB)

Taxonomical Security Consideration of OAEP Variants Yuichi KOMANO Kazuo OHTA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2006/05/01 Vol. E89-A No. 5 pp. 1233-1245 Type of Manuscript: Special Section PAPER (Special Section on Discrete Mathematics and Its Applications) Category: Keyword: OAEP, SAEP, provably secure, reduction, Padding, random oracle,
	Summary \| Full Text:PDF(287.8KB)

Solutions to Security Problems of Rivest and Shamir's PayWord Scheme Norio ADACHI Satoshi AOKI Yuichi KOMANO Kazuo OHTA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2005/01/01 Vol. E88-A No. 1 pp. 195-202 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Application Keyword: micropayment, PayWord Scheme, digital signature, hash chain,
	Summary \| Full Text:PDF(241.6KB)

Probabilistic Multi-Signature Schemes Using a One-Way Trapdoor Permutation Kei KAWAUCHI Yuichi KOMANO Kazuo OHTA Mitsuru TADA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2004/05/01 Vol. E87-A No. 5 pp. 1141-1153 Type of Manuscript: Special Section LETTER (Special Section on Discrete Mathematics and Its Applications) Category: Keyword: multi-signature scheme, probabilistic signature scheme, exact security, random oracle model,
	Summary \| Full Text:PDF(317.6KB)

OAEP-ES--Methodology of Universal Padding Technique-- Yuichi KOMANO Kazuo OHTA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2004/01/01 Vol. E87-A No. 1 pp. 110-119 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Asymmetric Cipher Keyword: OAEP, PSS, universal padding, reduction, provably secure,
	Summary \| Full Text:PDF(318.2KB)