Tatsuaki Okamoto

157 papers A* 36A 11B 10C 10Misc 4Journal 58Unranked 26

Year	Rank	Type	Title / Venue / Authors
2025	—	`conf`	Relationships Among FuncCPA and Its Related Notions. TCC (2) Takumi Shinozaki, Tatsuaki Okamoto, Keisuke Tanaka, Masayuki Tezuka, Yusuke Yoshida
2022	J	`jnl`	A New Quantitative Definition of the Complexity of Organized Matters. Complex. Tatsuaki Okamoto
2022	J	`jnl`	Standard model leakage-resilient authenticated key exchange using inner-product extractors. Des. Codes Cryptogr. Janaka Alawatugoda, Tatsuaki Okamoto
2022	Misc	`conf`	Stronger Security and Generic Constructions for Adaptor Signatures. INDOCRYPT Wei Dai, Tatsuaki Okamoto, Go Yamamoto
2022	J	`jnl`	Stronger Security and Generic Constructions for Adaptor Signatures. IACR Cryptol. ePrint Arch. Wei Dai, Tatsuaki Okamoto, Go Yamamoto
2021	J	`jnl`	Efficient Attribute-Based Signatures for Unbounded Arithmetic Branching Programs. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Pratish Datta, Tatsuaki Okamoto, Katsuyuki Takashima
2021	J	`jnl`	Standard Model Leakage-Resilient Authenticated Key Exchange using Inner-product Extractors. IACR Cryptol. ePrint Arch. Janaka Alawatugoda, Tatsuaki Okamoto
2020	J	`jnl`	Adaptively Simulation-Secure Attribute-Hiding Predicate Encryption. IEICE Trans. Inf. Syst. Pratish Datta, Tatsuaki Okamoto, Katsuyuki Takashima
2020	J	`jnl`	Decentralized Attribute-Based Encryption and Signatures. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Tatsuaki Okamoto, Katsuyuki Takashima
2020	J	`jnl`	Efficient Inner Product Functional Encryption with Full-Hiding Security. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Junichi Tomida, Masayuki Abe, Tatsuaki Okamoto
2019	—	`conf`	Efficient Attribute-Based Signatures for Unbounded Arithmetic Branching Programs. Public Key Cryptography (1) Pratish Datta, Tatsuaki Okamoto, Katsuyuki Takashima
2019	J	`jnl`	Efficient Attribute-Based Signatures for Unbounded Arithmetic Branching Programs. IACR Cryptol. ePrint Arch. Pratish Datta, Tatsuaki Okamoto, Katsuyuki Takashima
2019	J	`jnl`	Fully Secure Functional Encryption with a Large Class of Relations from the Decisional Linear Assumption. J. Cryptol. Tatsuaki Okamoto, Katsuyuki Takashima
2018	—	`conf`	Adaptively Simulation-Secure Attribute-Hiding Predicate Encryption. ASIACRYPT (2) Pratish Datta, Tatsuaki Okamoto, Katsuyuki Takashima
2018	J	`jnl`	Adaptively Simulation-Secure Attribute-Hiding Predicate Encryption. IACR Cryptol. ePrint Arch. Pratish Datta, Tatsuaki Okamoto, Katsuyuki Takashima
2018	J	`jnl`	Full-Hiding (Unbounded) Multi-Input Inner Product Functional Encryption from the k-Linear Assumption. IACR Cryptol. ePrint Arch. Pratish Datta, Tatsuaki Okamoto, Junichi Tomida
2018	—	`conf`	Full-Hiding (Unbounded) Multi-input Inner Product Functional Encryption from the k-Linear Assumption. Public Key Cryptography (2) Pratish Datta, Tatsuaki Okamoto, Junichi Tomida
2017	C	`ed.`	Provable Security - 11th International Conference, ProvSec 2017, Xi'an, China, October 23-25, 2017, Proceedings ProvSec Tatsuaki Okamoto, Yong Yu, Man Ho Au, Yannan Li
2017	B	`conf`	Signature Schemes with Randomized Verification. ACNS Cody Freitag, Rishab Goyal, Susan Hohenberger, Venkata Koppula, Eysa Lee, Tatsuaki Okamoto, Jordan Tran, Brent Waters
2016	J	`jnl`	A Secure M + 1st Price Auction Protocol Based on Bit Slice Circuits. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Takuho Mitsunaga, Yoshifumi Manabe, Tatsuaki Okamoto
2016	J	`jnl`	A Unified Paradigm of Organized Complexity and Semantic Information Theory. CoRR Tatsuaki Okamoto
2016	J	`jnl`	Adaptively Attribute-Hiding (Hierarchical) Inner Product Encryption. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Tatsuaki Okamoto, Katsuyuki Takashima
2016	C	`conf`	Efficient Functional Encryption for Inner-Product Values with Full-Hiding Security. ISC Junichi Tomida, Masayuki Abe, Tatsuaki Okamoto
2016	J	`jnl`	Packing Messages and Optimizing Bootstrapping in GSW-FHE. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Ryo Hiromasa, Masayuki Abe, Tatsuaki Okamoto
2015	J	`jnl`	A Cryptographic Moving-Knife Cake-Cutting Protocol with High Social Surplus. J. Inf. Process. Yoshifumi Manabe, Risako Otsuka, Tatsuaki Okamoto
2015	J	`jnl`	Achieving short ciphertexts or short secret-keys for adaptively secure general inner-product encryption. Des. Codes Cryptogr. Tatsuaki Okamoto, Katsuyuki Takashima
2015	J	`jnl`	Dual Pairing Vector Spaces and Their Applications. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Tatsuaki Okamoto, Katsuyuki Takashima
2015	—	`ed.`	Financial Cryptography and Data Security - 19th International Conference, FC 2015, San Juan, Puerto Rico, January 26-30, 2015, Revised Selected Papers Financial Cryptography Rainer Böhme, Tatsuaki Okamoto
2015	—	`conf`	New Realizations of Somewhere Statistically Binding Hashing and Positional Accumulators. ASIACRYPT (1) Tatsuaki Okamoto, Krzysztof Pietrzak, Brent Waters, Daniel Wichs
2015	J	`jnl`	New Realizations of Somewhere Statistically Binding Hashing and Positional Accumulators. IACR Cryptol. ePrint Arch. Tatsuaki Okamoto, Krzysztof Pietrzak, Brent Waters, Daniel Wichs
2015	—	`conf`	Packing Messages and Optimizing Bootstrapping in GSW-FHE. Public Key Cryptography Ryo Hiromasa, Masayuki Abe, Tatsuaki Okamoto
2014	B	`conf`	Constant-Round Black-Box Construction of Composable Multi-Party Computation Protocol. TCC Susumu Kiyoshima, Yoshifumi Manabe, Tatsuaki Okamoto
2014	J	`jnl`	Efficient Attribute-Based Signatures for Non-Monotone Predicates in the Standard Model. IEEE Trans. Cloud Comput. Tatsuaki Okamoto, Katsuyuki Takashima
2013	J	`jnl`	Constant-Round Black-Box Construction of Composable Multi-Party Computation Protocol. IACR Cryptol. ePrint Arch. Susumu Kiyoshima, Yoshifumi Manabe, Tatsuaki Okamoto
2013	—	`conf`	Decentralized Attribute-Based Signatures. Public Key Cryptography Tatsuaki Okamoto, Katsuyuki Takashima
2013	J	`jnl`	Efficient (Hierarchical) Inner-Product Encryption Tightly Reduced from the Decisional Linear Assumption. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Tatsuaki Okamoto, Katsuyuki Takashima
2013	J	`jnl`	Efficient Secure Auction Protocols Based on the Boneh-Goh-Nissim Encryption. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Takuho Mitsunaga, Yoshifumi Manabe, Tatsuaki Okamoto
2013	J	`jnl`	Message Recovery Signature Schemes from Sigma-Protocols. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Masayuki Abe, Tatsuaki Okamoto, Koutarou Suzuki
2013	J	`jnl`	Secure Integration of Asymmetric and Symmetric Encryption Schemes. J. Cryptol. Eiichiro Fujisaki, Tatsuaki Okamoto
2012	—	`conf`	A Cryptographic Moving-Knife Cake-Cutting Protocol IWIGP Yoshifumi Manabe, Tatsuaki Okamoto
2012	A*	`conf`	Adaptively Attribute-Hiding (Hierarchical) Inner Product Encryption. EUROCRYPT Tatsuaki Okamoto, Katsuyuki Takashima
2012	Misc	`conf`	Efficient Concurrent Oblivious Transfer in Super-Polynomial-Simulation Security. IWSEC Susumu Kiyoshima, Yoshifumi Manabe, Tatsuaki Okamoto
2012	A	`conf`	Fully Secure Unbounded Inner-Product and Attribute-Based Encryption. ASIACRYPT Tatsuaki Okamoto, Katsuyuki Takashima
2012	J	`jnl`	Fully Secure Unbounded Inner-Product and Attribute-Based Encryption. IACR Cryptol. ePrint Arch. Tatsuaki Okamoto, Katsuyuki Takashima
2012	J	`jnl`	Meta-envy-free Cake-cutting and Pie-cutting Protocols. Inf. Media Technol. Yoshifumi Manabe, Tatsuaki Okamoto
2012	J	`jnl`	Meta-envy-free Cake-cutting and Pie-cutting Protocols. J. Inf. Process. Yoshifumi Manabe, Tatsuaki Okamoto
2011	Misc	`conf`	A Secure M + 1st Price Auction Protocol Based on Bit Slice Circuits. IWSEC Takuho Mitsunaga, Yoshifumi Manabe, Tatsuaki Okamoto
2011	B	`conf`	Achieving Short Ciphertexts or Short Secret-Keys for Adaptively Secure General Inner-Product Encryption. CANS Tatsuaki Okamoto, Katsuyuki Takashima
2011	J	`jnl`	Achieving Short Ciphertexts or Short Secret-Keys for Adaptively Secure General Inner-Product Encryption. IACR Cryptol. ePrint Arch. Tatsuaki Okamoto, Katsuyuki Takashima
2011	J	`jnl`	Adaptively Attribute-Hiding (Hierarchical) Inner Product Encryption. IACR Cryptol. ePrint Arch. Tatsuaki Okamoto, Katsuyuki Takashima
2011	J	`jnl`	An eCK-secure Authenticated Key Exchange Protocol without Random Oracles. KSII Trans. Internet Inf. Syst. Daisuke Moriyama, Tatsuaki Okamoto
2011	J	`jnl`	Decentralized Attribute-Based Signatures. IACR Cryptol. ePrint Arch. Tatsuaki Okamoto, Katsuyuki Takashima
2011	J	`jnl`	Efficient Attribute-Based Signatures for Non-Monotone Predicates in the Standard Model. IACR Cryptol. ePrint Arch. Tatsuaki Okamoto, Katsuyuki Takashima
2011	—	`conf`	Efficient Attribute-Based Signatures for Non-monotone Predicates in the Standard Model. Public Key Cryptography Tatsuaki Okamoto, Katsuyuki Takashima
2011	A	`conf`	Leakage resilient eCK-secure key exchange protocol without random oracles. AsiaCCS Daisuke Moriyama, Tatsuaki Okamoto
2011	—	`conf`	Some Key Techniques on Pairing Vector Spaces. AFRICACRYPT Tatsuaki Okamoto, Katsuyuki Takashima
2010	J	`jnl`	Chosen Ciphertext Security with Optimal Ciphertext Overhead. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Masayuki Abe, Eike Kiltz, Tatsuaki Okamoto
2010	Misc	`conf`	Efficient Secure Auction Protocols Based on the Boneh-Goh-Nissim Encryption. IWSEC Takuho Mitsunaga, Yoshifumi Manabe, Tatsuaki Okamoto
2010	A*	`conf`	Fully Secure Functional Encryption with General Relations from the Decisional Linear Assumption. CRYPTO Tatsuaki Okamoto, Katsuyuki Takashima
2010	J	`jnl`	Fully Secure Functional Encryption with General Relations from the Decisional Linear Assumption. IACR Cryptol. ePrint Arch. Tatsuaki Okamoto, Katsuyuki Takashima
2010	A*	`conf`	Fully Secure Functional Encryption: Attribute-Based Encryption and (Hierarchical) Inner Product Encryption. EUROCRYPT Allison B. Lewko, Tatsuaki Okamoto, Amit Sahai, Katsuyuki Takashima, Brent Waters
2010	J	`jnl`	Fully Secure Functional Encryption: Attribute-Based Encryption and (Hierarchical) Inner Product Encryption. IACR Cryptol. ePrint Arch. Allison B. Lewko, Tatsuaki Okamoto, Amit Sahai, Katsuyuki Takashima, Brent Waters
2010	B	`conf`	Meta-Envy-Free Cake-Cutting Protocols. MFCS Yoshifumi Manabe, Tatsuaki Okamoto
2009	C	`conf`	An eCK-Secure Authenticated Key Exchange Protocol without Random Oracles. ProvSec Daisuke Moriyama, Tatsuaki Okamoto
2009	—	`conf`	Compact CCA-Secure Encryption for Messages of Arbitrary Length. Public Key Cryptography Masayuki Abe, Eike Kiltz, Tatsuaki Okamoto
2009	A	`conf`	Hierarchical Predicate Encryption for Inner-Products. ASIACRYPT Tatsuaki Okamoto, Katsuyuki Takashima
2008	—	`conf`	An Efficient Anonymous Credential System. Financial Cryptography Norio Akagi, Yoshifumi Manabe, Tatsuaki Okamoto
2008	J	`jnl`	An optimistic fair exchange protocol and its security in the universal composability framework. Int. J. Appl. Cryptogr. Yusuke Okada, Yoshifumi Manabe, Tatsuaki Okamoto
2008	C	`conf`	Anonymous return route information for onion based mix-nets. SecureComm Yoshifumi Manabe, Tatsuaki Okamoto
2008	A	`conf`	Chosen Ciphertext Security with Optimal Ciphertext Overhead. ASIACRYPT Masayuki Abe, Eike Kiltz, Tatsuaki Okamoto
2008	J	`jnl`	Chosen Ciphertext Security with Optimal Ciphertext Overhead. IACR Cryptol. ePrint Arch. Masayuki Abe, Eike Kiltz, Tatsuaki Okamoto
2008	C	`conf`	Homomorphic Encryption and Signatures from Vector Decomposition. Pairing Tatsuaki Okamoto, Katsuyuki Takashima
2008	J	`jnl`	On the Equivalence of Several Security Notions of KEM and DEM. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Waka Nagao, Yoshifumi Manabe, Tatsuaki Okamoto
2008	C	`conf`	Relationship of Three Cryptographic Channels in the UC Framework. ProvSec Waka Nagao, Yoshifumi Manabe, Tatsuaki Okamoto
2008	J	`jnl`	Universally Composable Identity-Based Encryption. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Ryo Nishimaki, Yoshifumi Manabe, Tatsuaki Okamoto
2007	J	`jnl`	Authenticated Key Exchange and Key Encapsulation Without Random Oracles. IACR Cryptol. ePrint Arch. Tatsuaki Okamoto
2007	A	`conf`	Authenticated Key Exchange and Key Encapsulation in the Standard Model. ASIACRYPT Tatsuaki Okamoto
2007	B	`ed.`	Cryptology and Network Security, 6th International Conference, CANS 2007, Singapore, December 8-10, 2007, Proceedings CANS Feng Bao, San Ling, Tatsuaki Okamoto, Huaxiong Wang, Chaoping Xing
2007	C	`ed.`	Pairing-Based Cryptography - Pairing 2007, First International Conference, Tokyo, Japan, July 2-4, 2007, Proceedings Pairing Tsuyoshi Takagi, Tatsuaki Okamoto, Eiji Okamoto, Takeshi Okamoto
2007	—	`ed.`	Public Key Cryptography - PKC 2007, 10th International Conference on Practice and Theory in Public-Key Cryptography, Beijing, China, April 16-20, 2007, Proceedings Public Key Cryptography Tatsuaki Okamoto, Xiaoyun Wang
2006	J	`jnl`	A Universally Composable Secure Channel Based on the KEM-DEM Framework. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Waka Nagao, Yoshifumi Manabe, Tatsuaki Okamoto
2006	—	`conf`	Cryptography Based on Bilinear Maps. AAECC Tatsuaki Okamoto
2006	B	`conf`	Efficient Blind and Partially Blind Signatures Without Random Oracles. TCC Tatsuaki Okamoto
2006	J	`jnl`	Efficient Blind and Partially Blind Signatures Without Random Oracles. IACR Cryptol. ePrint Arch. Tatsuaki Okamoto
2006	—	`conf`	On Pairing-Based Cryptosystems. VIETCRYPT Tatsuaki Okamoto
2006	J	`jnl`	On the Equivalence of Several Security Notions of Key Encapsulation Mechanism. IACR Cryptol. ePrint Arch. Waka Nagao, Yoshifumi Manabe, Tatsuaki Okamoto
2006	—	`conf`	Universally Composable Identity-Based Encryption. VIETCRYPT Ryo Nishimaki, Yoshifumi Manabe, Tatsuaki Okamoto
2005	B	`conf`	A Universally Composable Secure Channel Based on the KEM-DEM Framework. TCC Waka Nagao, Yoshifumi Manabe, Tatsuaki Okamoto
2005	—	`conf`	Relationship of three cryptographic channels in the UC framework. ICITS Tatsuaki Okamoto
2005	J	`jnl`	Resource Bounded Unprovability of Computational Lower Bounds CoRR Tatsuaki Okamoto, Ryo Kashima
2005	J	`jnl`	Security and Performance Evaluation of ESIGN and RSA on IC Cards by Using Byte-Unit Modular Algorithms. IEICE Trans. Commun. Chung-Huang Yang, Hikaru Morita, Tatsuaki Okamoto
2004	—	`conf`	An RSA Family of Trap-Door Permutations with a Common Domain and Its Applications. Public Key Cryptography Ryotaro Hayashi, Tatsuaki Okamoto, Keisuke Tanaka
2004	J	`jnl`	RSA-OAEP Is Secure under the RSA Assumption. J. Cryptol. Eiichiro Fujisaki, Tatsuaki Okamoto, David Pointcheval, Jacques Stern
2004	B	`ed.`	Topics in Cryptology - CT-RSA 2004, The Cryptographers' Track at the RSA Conference 2004, San Francisco, CA, USA, February 23-27, 2004, Proceedings CT-RSA Tatsuaki Okamoto
2003	A	`conf`	Almost Uniform Density of Power Residues and the Provable Security of ESIGN. ASIACRYPT Tatsuaki Okamoto, Jacques Stern
2003	J	`jnl`	Resource Bounded Unprovability of Computational Lower Bounds. IACR Cryptol. ePrint Arch. Tatsuaki Okamoto, Ryo Kashima
2002	J	`jnl`	Delegation Chains Secure up to Constant Length. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. Masayuki Abe, Tatsuaki Okamoto
2001	C	`ed.`	Information and Communications Security, Third International Conference, ICICS 2001, Xian, China, November 13-16, 2001 ICICS Sihan Qing, Tatsuaki Okamoto, Jianying Zhou
2001	B	`conf`	REACT: Rapid Enhanced-Security Asymmetric Cryptosystem Transform. CT-RSA Tatsuaki Okamoto, David Pointcheval
2001	A*	`conf`	RSA-OAEP Is Secure under the RSA Assumption. CRYPTO Eiichiro Fujisaki, Tatsuaki Okamoto, David Pointcheval, Jacques Stern
2001	—	`conf`	The Gap-Problems: A New Class of Problems for the Security of Cryptographic Schemes. Public Key Cryptography Tatsuaki Okamoto, David Pointcheval
2000	A	`ed.`	Advances in Cryptology - ASIACRYPT 2000, 6th International Conference on the Theory and Application of Cryptology and Information Security, Kyoto, Japan, December 3-7, 2000, Proceedings ASIACRYPT Tatsuaki Okamoto
2000	J	`jnl`	On Relationships between Statistical Zero-Knowledge Proofs. J. Comput. Syst. Sci. Tatsuaki Okamoto
2000	A*	`conf`	Provably Secure Partially Blind Signatures. CRYPTO Masayuki Abe, Tatsuaki Okamoto
2000	A*	`conf`	Quantum Public-Key Cryptosystems. CRYPTO Tatsuaki Okamoto, Keisuke Tanaka, Shigenori Uchiyama
2000	J	`jnl`	RSA-OAEP is Secure under the RSA Assumption. IACR Cryptol. ePrint Arch. Eiichiro Fujisaki, Tatsuaki Okamoto, David Pointcheval, Jacques Stern
1999	A	`conf`	A Signature Scheme with Message Recovery as Secure as Discrete Logarithm. ASIACRYPT Masayuki Abe, Tatsuaki Okamoto
1999	—	`conf`	An Improvement on a Practical Secret Voting Scheme. ISW Miyako Ohkubo, Fumiaki Miura, Masayuki Abe, Atsushi Fujioka, Tatsuaki Okamoto
1999	C	`conf`	Delegation Chains Secure up to Constant Length. ICICS Masayuki Abe, Tatsuaki Okamoto
1999	—	`conf`	How to Enhance the Security of Public-Key Encryption at Minimum Cost. Public Key Cryptography Eiichiro Fujisaki, Tatsuaki Okamoto
1999	A*	`conf`	Secure Integration of Asymmetric and Symmetric Encryption Schemes. CRYPTO Eiichiro Fujisaki, Tatsuaki Okamoto
1998	A*	`conf`	A New Public-Key Cryptosystem as Secure as Factoring. EUROCRYPT Tatsuaki Okamoto, Shigenori Uchiyama
1998	A*	`conf`	A Practical and Provably Secure Scheme for Publicly Verifiable Secret Sharing and Its Applications. EUROCRYPT Eiichiro Fujisaki, Tatsuaki Okamoto
1998	—	`conf`	Lower Bounds on Term-Based Divisible Cash Systems. Public Key Cryptography Tatsuaki Okamoto, Moti Yung
1998	A*	`conf`	On Concrete Security Treatment of Signatures Derived from Identification. CRYPTO Kazuo Ohta, Tatsuaki Okamoto
1998	A*	`conf`	Security of an Identity-Based Cryptosystem and the Related Reductions. EUROCRYPT Tatsuaki Okamoto, Shigenori Uchiyama
1997	C	`ed.`	Information and Communication Security, First International Conference, ICICS'97, Beijing, China, November 11-14, 1997, Proceedings ICICS Yongfei Han, Tatsuaki Okamoto, Sihan Qing
1997	A*	`conf`	Keeping the SZK-Verifier Honest Unconditionally. CRYPTO Giovanni Di Crescenzo, Tatsuaki Okamoto, Moti Yung
1997	—	`conf`	Receipt-Free Electronic Voting Schemes for Large Scale Elections. Security Protocols Workshop Tatsuaki Okamoto
1997	A*	`conf`	Statistical Zero Knowledge Protocols to Prove Modular Polynomial Relations. CRYPTO Eiichiro Fujisaki, Tatsuaki Okamoto
1997	—	`conf`	Threshold Key-Recovery Systems for RSA. Security Protocols Workshop Tatsuaki Okamoto
1996	—	`conf`	An electronic voting scheme. IFIP World Conference on IT Tools Tatsuaki Okamoto
1996	A*	`conf`	On Relationships between Statistical Zero-Knowledge Proofs. STOC Tatsuaki Okamoto
1996	—	`conf`	Practical Escrow Cash System. Security Protocols Workshop Eiichiro Fujisaki, Tatsuaki Okamoto
1995	A*	`conf`	An Efficient Divisible Electronic Cash Scheme. CRYPTO Tatsuaki Okamoto
1995	A*	`conf`	Honest Verifier vs Dishonest Verifier in Public Coin Zero-Knowledge Proofs. CRYPTO Ivan Damgård, Oded Goldreich, Tatsuaki Okamoto, Avi Wigderson
1994	A*	`conf`	Designated Confirmer Signatures and Public-Key Encryption are Equivalent. CRYPTO Tatsuaki Okamoto
1994	A*	`conf`	How to Simultaneously Exchange Secrets by General Assumptions. CCS Tatsuaki Okamoto, Kazuo Ohta
1994	A*	`conf`	Single-Term Divisible Electronic Coins. EUROCRYPT Tony L. Eng, Tatsuaki Okamoto
1994	A	`conf`	Zero-Knowledge Proofs of Computational Power in the Shared String Model. ASIACRYPT Alfredo De Santis, Tatsuaki Okamoto, Giuseppe Persiano
1993	A*	`conf`	On Key Distribution and Authentication in Mobile Radio Networks. EUROCRYPT Choonsik Park, Kaoru Kurosawa, Tatsuaki Okamoto, Shigeo Tsujii
1993	B	`conf`	On the Relationship among Cryptographic Physical Assumptions. ISAAC Tatsuaki Okamoto
1993	J	`jnl`	Reducing elliptic curve logarithms to logarithms in a finite field. IEEE Trans. Inf. Theory Alfred Menezes, Tatsuaki Okamoto, Scott A. Vanstone
1992	—	`conf`	A Practical Secret Voting Scheme for Large Scale Elections. AUSCRYPT Atsushi Fujioka, Tatsuaki Okamoto, Kazuo Ohta
1992	A*	`conf`	An Efficient Digital Signature Scheme Based on an Elliptic Curve Over the Ring Z CRYPTO Tatsuaki Okamoto, Atsushi Fujioka, Eiichiro Fujisaki
1992	A*	`conf`	How Intractable Is the Discrete Logarithm for a General Finite Group? EUROCRYPT Tatsuaki Okamoto, Kouichi Sakurai, Hiroki Shizuya
1992	A*	`conf`	Provably Secure and Practical Identification Schemes and Corresponding Signature Schemes. CRYPTO Tatsuaki Okamoto
1992	A*	`conf`	Secure Bit Commitment Function against Divertibility. EUROCRYPT Kazuo Ohta, Tatsuaki Okamoto, Atsushi Fujioka
1991	A	`conf`	A Digital Multisignature Scheme Based on the Fiat-Shamir Scheme. ASIACRYPT Kazuo Ohta, Tatsuaki Okamoto
1991	A	`conf`	An Extensin of Zero-Knowledge Proofs and Its Applications. ASIACRYPT Tatsuaki Okamoto
1991	A*	`conf`	Direct Zero Knowledge Proofs of Computational Power in Five Rounds. EUROCRYPT Tatsuaki Okamoto, David Chaum, Kazuo Ohta
1991	A*	`conf`	ESIGN: An Efficient Digital Signature Implementation for Smard Cards. EUROCRYPT Atsushi Fujioka, Tatsuaki Okamoto, Shoji Miyaguchi
1991	A*	`conf`	Efficient Algorithms for the Construction of Hyperelliptic Cryptosystems. CRYPTO Tatsuaki Okamoto, Kouichi Sakurai
1991	A*	`conf`	Interactive Bi-Proof Systems and Undeniable Signature Schemes. EUROCRYPT Atsushi Fujioka, Tatsuaki Okamoto, Kazuo Ohta
1991	A*	`conf`	New Public-Key Schemes Based on Elliptic Curves over the Ring Z CRYPTO Kenji Koyama, Ueli M. Maurer, Tatsuaki Okamoto, Scott A. Vanstone
1991	A*	`conf`	Reducing Elliptic Curve Logarithms to Logarithms in a Finite Field STOC Alfred Menezes, Scott A. Vanstone, Tatsuaki Okamoto
1991	A*	`conf`	Universal Electronic Cash. CRYPTO Tatsuaki Okamoto, Kazuo Ohta
1990	J	`jnl`	A fast signature scheme based on congruential polynomial operations. IEEE Trans. Inf. Theory Tatsuaki Okamoto
1990	A*	`conf`	How to Utilize the Randomness of Zero-Knowledge Proofs. CRYPTO Tatsuaki Okamoto, Kazuo Ohta
1990	A*	`conf`	Membership Authentication for Hierarchical Multigroups Using the Extended Fiat-Shamir Scheme. EUROCRYPT Kazuo Ohta, Tatsuaki Okamoto, Kenji Koyama
1989	A*	`conf`	Disposable Zero-Knowledge Authentications and Their Applications to Untraceable Electronic Cash. CRYPTO Tatsuaki Okamoto, Kazuo Ohta
1989	A*	`conf`	Divertible Zero Knowledge Interactive Proofs and Commutative Random Self-Reducibility. EUROCRYPT Tatsuaki Okamoto, Kazuo Ohta
1988	J	`jnl`	A Digital Multisignature Schema Using Bijective Public-Key Cryptosystems. ACM Trans. Comput. Syst. Tatsuaki Okamoto
1988	A*	`conf`	A Modification of the Fiat-Shamir Scheme. CRYPTO Kazuo Ohta, Tatsuaki Okamoto
1987	J	`jnl`	A single public-key authentication scheme for multiple users. Syst. Comput. Jpn. Tatsuaki Okamoto
1986	J	`jnl`	A digital signature scheme based on polynomial operations. Syst. Comput. Jpn. Tatsuaki Okamoto, Akira Shiraishi
1986	J	`jnl`	Specification and Verification of Decentralized Daisy Chain Arbiters with omega-Extended Regular Expressions. Theor. Comput. Sci. Ichiro Suzuki, Y. Motohashi, Kenichi Taniguchi, Tadao Kasami, Tatsuaki Okamoto