R. Nishimaki

发表

Key-Private Proxy Re-Encryption from Lattices, Revisited

Ryo Nishimaki, Keita Xagawa, Keita Xagawa, 2015, IEICE Trans. Fundam. Electron. Commun. Comput. Sci..

Watermarking PRFs against Quantum Adversaries

Fuyuki Kitagawa, R. Nishimaki, 2022, EUROCRYPT.

Certified Everlasting Zero-Knowledge Proof for QMA

T. Morimae, Takashi Yamakawa, R. Nishimaki, 2021, IACR Cryptol. ePrint Arch..

Simple and Generic Constructions of Succinct Functional Encryption

Fuyuki Kitagawa, Keisuke Tanaka, R. Nishimaki, 2021, Journal of Cryptology.

Total synthesis of (-)-mniopetal E, a novel biologically intriguing drimane sesquiterpenoid.

K. Takao, M. Ishikawa, K. Tadano, 1999, The Journal of organic chemistry.

Universal Proxy Re-Encryption

Nico Döttling, Ryo Nishimaki, Nico Döttling, 2018, IACR Cryptol. ePrint Arch..

Cryptanalysis of Boyen’s attribute-based encryption scheme in TCC 2013

Ryo Nishimaki, Shweta Agrawal, Keita Xagawa, 2022, Designs, Codes and Cryptography.

Fast, compact, and expressive attribute-based encryption

Ryo Nishimaki, Yuto Kawahara, Junichi Tomida, 2020, Designs, Codes and Cryptography.

Watermarking cryptographic capabilities

Vinod Vaikuntanathan, Ryo Nishimaki, Daniel Wichs, 2016, STOC.

Adaptively Single-Key Secure Constrained PRFs for \mathrm NC^1

Ryo Nishimaki, Takashi Yamakawa, Takahiro Matsuda, 2019, Public Key Cryptography.

SYNTHETIC STUDIES OF MNIOPETALS. INTRAMOLECULAR DIELS-ALDER CYCLOADDITION APPROACH FOR ACCESS TO A KEY TRICYCLIC DRIMAN-TYPE INTERMEDIATE

M. Ishikawa, T. Murata, K. Tadano, 1997 .

Obfustopia Built on Secret-Key Functional Encryption

Fuyuki Kitagawa, Ryo Nishimaki, Keisuke Tanaka, 2018, Journal of Cryptology.

How to Watermark Cryptographic Functions

Ryo Nishimaki, R. Nishimaki, 2013, IACR Cryptol. ePrint Arch..

Indistinguishability Obfuscation for All Circuits from Secret-Key Functional Encryption

Fuyuki Kitagawa, Ryo Nishimaki, Keisuke Tanaka, 2017, IACR Cryptol. ePrint Arch..

Tagged One-Time Signatures: Tight Security and Optimal Tag Size

Ryo Nishimaki, Markulf Kohlweiss, Masayuki Abe, 2013, Public Key Cryptography.

Designated Verifier/Prover and Preprocessing NIZKs from Diffie-Hellman Assumptions

Ryo Nishimaki, Takashi Yamakawa, Shuichi Katsumata, 2019, IACR Cryptol. ePrint Arch..

Certified Everlasting Functional Encryption

T. Morimae, Takashi Yamakawa, R. Nishimaki, 2022, IACR Cryptol. ePrint Arch..

Quantum Encryption with Certified Deletion, Revisited: Public Key, Attribute-Based, and Classical Communication

Ryo Nishimaki, Tomoyuki Morimae, Takashi Yamakawa, 2021, IACR Cryptol. ePrint Arch..

Quantum Encryption with Certified Deletion: Public Key and Attribute-Based

Ryo Nishimaki, Takashi Yamakawa, Takashi Yamakawa, 2021, IACR Cryptol. ePrint Arch..

Bounded Functional Encryption for Turing Machines: Adaptive Security from General Assumptions

Takashi Yamakawa, Shota Yamada, Fuyuki Kitagawa, 2022, IACR Cryptol. ePrint Arch..

Adaptively Secure Inner Product Encryption from LWE

Ryo Nishimaki, Takashi Yamakawa, Shuichi Katsumata, 2020, IACR Cryptol. ePrint Arch..

Universally Composable Identity-Based Encryption

Ryo Nishimaki, Tatsuaki Okamoto, Yoshifumi Manabe, 2006, IEICE Trans. Fundam. Electron. Commun. Comput. Sci..

Constant-Size Structure-Preserving Signatures: Generic Constructions and Simple Assumptions

Ryo Nishimaki, Markulf Kohlweiss, Melissa Chase, 2012, Journal of Cryptology.

On the Insecurity of the Fiat-Shamir Signatures with Iterative Hash Functions

Ryo Nishimaki, Keisuke Tanaka, Eiichiro Fujisaki, 2009, ProvSec.

Compact NIZKs from Standard Assumptions on Bilinear Maps

Ryo Nishimaki, Takashi Yamakawa, Shuichi Katsumata, 2020, IACR Cryptol. ePrint Arch..

Exploring Constructions of Compact NIZKs from Various Assumptions

Ryo Nishimaki, Takashi Yamakawa, Shuichi Katsumata, 2019, IACR Cryptol. ePrint Arch..

Adaptively Secure Constrained Pseudorandom Functions in the Standard Model

Ryo Nishimaki, Takashi Yamakawa, Shuichi Katsumata, 2020, IACR Cryptol. ePrint Arch..

Verifiably encrypted signatures with short keys based on the decisional linear problem and obfuscation for encrypted VES

Keita Xagawa, R. Nishimaki, 2014, Designs, Codes and Cryptography.

Universally composable adaptive oblivious transfer (with access control) from standard assumptions

Jan Camenisch, Maria Dubovitskaya, Ryo Nishimaki, 2013, Digital Identity Management.

Verifiably encrypted signatures with short keys based on the decisional linear problem and obfuscation for encrypted VES

Ryo Nishimaki, Keita Xagawa, Keita Xagawa, 2013, Des. Codes Cryptogr..

A Multi-trapdoor Commitment Scheme from the RSA Assumption

Ryo Nishimaki, Keisuke Tanaka, Eiichiro Fujisaki, 2010, ACISP.

Equipping Public-Key Cryptographic Primitives with Watermarking (or: A Hole Is to Watermark)

Ryo Nishimaki, R. Nishimaki, 2020, IACR Cryptol. ePrint Arch..

Constrained PRFs for Bit-fixing ( and More ) from OWFs with Adaptive Security and Constant Collusion Resistance

Ryo Nishimaki, Shuichi Katsumata, Alex Davidson, 2019 .

Adaptively Single-Key Secure Constrained PRFs for NC1

Ryo Nishimaki, Takashi Yamakawa, Takahiro Matsuda, 2018, IACR Cryptol. ePrint Arch..

Constrained PRFs for Bit-fixing from OWFs with Constant Collusion Resistance

Ryo Nishimaki, Shuichi Katsumata, Alex Davidson, 2018, IACR Cryptol. ePrint Arch..

The Direction of Updatable Encryption Does Matter

Ryo Nishimaki, R. Nishimaki, 2021, IACR Cryptol. ePrint Arch..

Quantum Public-Key Encryption with Tamper-Resilient Public Keys from One-Way Functions

T. Morimae, Takashi Yamakawa, Fuyuki Kitagawa, 2023, IACR Cryptol. ePrint Arch..

Obfuscation of Pseudo-Deterministic Quantum Circuits

Takashi Yamakawa, Fuyuki Kitagawa, James Bartusek, 2023, IACR Cryptol. ePrint Arch..

One-out-of-Many Unclonable Cryptography: Definitions, Constructions, and More

Fuyuki Kitagawa, R. Nishimaki, 2023, IACR Cryptol. ePrint Arch..

Simple and Generic Constructions of Succinct Functional Encryption

Fuyuki Kitagawa, Ryo Nishimaki, Keisuke Tanaka, 2018, Journal of Cryptology.

Compact Designated Verifier NIZKs from the CDH Assumption Without Pairings

Ryo Nishimaki, Shuichi Katsumata, Shota Yamada, 2021, Journal of Cryptology.

Anonymous Traitor Tracing: How to Embed Arbitrary Information in a Key

Mark Zhandry, Ryo Nishimaki, Daniel Wichs, 2016, EUROCRYPT.

Security on Hybrid Encryption with the Tag-KEM/DEM Framework

Ryo Nishimaki, Keisuke Tanaka, Akira Numayama, 2009, ACISP.

CCA Proxy Re-Encryption without Bilinear Maps in the Standard Model

Ryo Nishimaki, Keisuke Tanaka, Toshihide Matsuda, 2010, Public Key Cryptography.

Generalizing Efficient Multiparty Computation

Ryo Nishimaki, Alain Tapp, Bernardo Machado David, 2015, ICITS.

Round-Optimal Blind Signatures in the Plain Model from Classical and Quantum Standard Assumptions

Ryo Nishimaki, Shuichi Katsumata, Shota Yamada, 2021, IACR Cryptol. ePrint Arch..

Leakage-resilient Identity-based Encryption in Bounded Retrieval Model with Nearly Optimal Leakage-Ratio

Ryo Nishimaki, Takashi Yamakawa, Takashi Yamakawa, 2019, IACR Cryptol. ePrint Arch..

Anonymous Traitor Tracing: How to Embed Arbitrary Information in a Key

Nishimaki Ryo, Wichs Daniel, Zhandry Mark, 2016, International Conference on the Theory and Application of Cryptographic Techniques.

Functional Encryption with Secure Key Leasing

Fuyuki Kitagawa, R. Nishimaki, 2022, IACR Cryptol. ePrint Arch..

Adaptively Secure and Succinct Functional Encryption: Improving Security and Efficiency, Simultaneously

Fuyuki Kitagawa, Ryo Nishimaki, Keisuke Tanaka, 2019, IACR Cryptol. ePrint Arch..

Watermarking Cryptographic Programs Against Arbitrary Removal Strategies

Ryo Nishimaki, Daniel Wichs, Daniel Wichs, 2015, IACR Cryptol. ePrint Arch..

Post-Challenge Leakage Resilient Public-Key Cryptosystem in Split State Model

Ryo Nishimaki, Keisuke Tanaka, Kenji Yasunaga, 2015, IEICE Trans. Fundam. Electron. Commun. Comput. Sci..

From Cryptomania to Obfustopia Through Secret-Key Functional Encryption

Nir Bitansky, Ryo Nishimaki, Daniel Wichs, 2016, Journal of Cryptology.

Obfuscation of Pseudo-Deterministic Quantum Circuits

Takashi Yamakawa, Fuyuki Kitagawa, James Bartusek, 2023, IACR Cryptol. ePrint Arch..

Secure Software Leasing from Standard Assumptions

Takashi Yamakawa, Fuyuki Kitagawa, R. Nishimaki, 2020, IACR Cryptol. ePrint Arch..