IEICE Trans

Eiichiro FUJISAKI

Improving Practical UC-Secure Commitments based on the DDH Assumption Eiichiro FUJISAKI
Publication: Publication Date: 2022/03/01 Vol. E105-A No. 3 pp. 182-194 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Keyword: universal composability, static and adaptively UC-secure commitment, the DH assumption,
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A Constant-Size Signature Scheme with a Tighter Reduction from the CDH Assumption Kaisei KAJITA Kazuto OGAWA Eiichiro FUJISAKI
Publication: Publication Date: 2020/01/01 Vol. E103-A No. 1 pp. 141-149 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Keyword: digital signature, CDH assumption, trapdoor commitment, tight security reduction,
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Post-Challenge Leakage Resilient Public-Key Cryptosystem in Split State Model Eiichiro FUJISAKI Akinori KAWACHI Ryo NISHIMAKI Keisuke TANAKA Kenji YASUNAGA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2015/03/01 Vol. E98-A No. 3 pp. 853-862 Type of Manuscript: PAPER Category: Cryptography and Information Security Keyword: post-challenge (bounded) leakage, simultaneous secret-key and sender-randomness leakage, CCA2 security for multiple messages,
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Non-malleable Multiple Public-Key Encryption Atsushi FUJIOKA Eiichiro FUJISAKI Keita XAGAWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2014/06/01 Vol. E97-A No. 6 pp. 1318-1334 Type of Manuscript: Special Section PAPER (Special Section on Discrete Mathematics and Its Applications) Category: Keyword: Multiple public-key encryption, Non-malleability, Adversarially chosen public-key attacks, Threshold public-key encryption, and Completely non-malleable public-key encryption.,
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Sub-Linear Size Traceable Ring Signatures without Random Oracles Eiichiro FUJISAKI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2012/01/01 Vol. E95-A No. 1 pp. 151-166 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Authentication Keyword: traceable ring signature, sub-linear size ring signature, linkable ring signature, Groth-Sahai proofs,
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A Multi-Trapdoor Commitment Scheme from the RSA Assumption Ryo NISHIMAKI Eiichiro FUJISAKI Keisuke TANAKA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2012/01/01 Vol. E95-A No. 1 pp. 176-184 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Secure Protocol Keyword: non-interactive commitment, multi-trapdoor commitment, non-malleability, RSA assumption, weak signature,
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An Efficient Non-interactive Universally Composable String-Commitment Scheme Ryo NISHIMAKI Eiichiro FUJISAKI Keisuke TANAKA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2012/01/01 Vol. E95-A No. 1 pp. 167-175 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Secure Protocol Keyword: universal composability, commitment, all-but-one trapdoor function, homomorphic encryption,
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Formal Security Treatments for IBE-to-Signature Transformation: Relations among Security Notions Yang CUI Eiichiro FUJISAKI Goichiro HANAOKA Hideki IMAI Rui ZHANG
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2009/01/01 Vol. E92-A No. 1 pp. 53-66 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Digital Signature Keyword: identity based encryption, digital signature, security notions,
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Traceable Ring Signature Eiichiro FUJISAKI Koutarou SUZUKI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/01/01 Vol. E91-A No. 1 pp. 83-93 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Signatures Keyword: ring signature, traceability, security model,
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Security of ESIGN-PSS Tetsutaro KOBAYASHI Eiichiro FUJISAKI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2007/07/01 Vol. E90-A No. 7 pp. 1395-1405 Type of Manuscript: PAPER Category: Information Security Keyword: ESIGN, PSS encoding, AER assumption, existential unforgeability against chosen-message attack (CMA security),
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Plaintext Simulatability Eiichiro FUJISAKI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2006/01/01 Vol. E89-A No. 1 pp. 55-65 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Public Key Cryptography Keyword: plaintext simulatability, plaintext awareness, chosen-ciphertext security (CCA2-security), Dolev-Dwork-Naor's encryption scheme, CCA2-secure encryption scheme without overhead,
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A Simple Approach to Secretly Sharing a Factoring Witness in a Publicly-Verifiable Manner Eiichiro FUJISAKI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2002/05/01 Vol. E85-A No. 5 pp. 1041-1049 Type of Manuscript: Special Section PAPER (Special Section on Discrete Mathematics and Its Applications) Category: Keyword: publicly verifiable secret sharing (PVSS), integer commitment scheme on a group with hidden order, fair-cryptosystem,
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A Chosen-Cipher Secure Encryption Scheme Tightly as Secure as Factoring Eiichiro FUJISAKI Tatsuaki OKAMOTO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2001/01/01 Vol. E84-A No. 1 pp. 179-187 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Keyword: chosen-cipher security, factoring, random oracle, exact security,
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How to Enhance the Security of Public-Key Encryption at Minimum Cost Eiichiro FUJISAKI Tatsuaki OKAMOTO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2000/01/25 Vol. E83-A No. 1 pp. 24-32 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Keyword: indistinguishability, chosen-plaintext attack, adaptive chosen-ciphertext attack, random oracle model,
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Statistical Zero-Knowledge Protocols to Prove Modular Polynomial Relations Eiichiro FUJISAKI Tatsuaki OKAMOTO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1999/01/25 Vol. E82-A No. 1 pp. 81-92 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Keyword: bit commitment, statistical zero-knowledge, argument of knowledge,
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Practical Escrow Cash Schemes Eiichiro FUJISAKI Tatsuaki OKAMOTO
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1998/01/25 Vol. E81-A No. 1 pp. 11-19 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Keyword: escrow, trustee, electronic cash, money laundering, extortion crime,
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