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2020 – today
- 2024
[j18]Fuyuki Kitagawa, Ryo Nishimaki:
Watermarking PRFs and PKE Against Quantum Adversaries. J. Cryptol. 37(3): 22 (2024)- [j17]Shuichi Katsumata, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Compact NIZKs from Standard Assumptions on Bilinear Maps. J. Cryptol. 37(3): 23 (2024) - [c48]Fuyuki Kitagawa, Tomoyuki Morimae, Ryo Nishimaki, Takashi Yamakawa:
Quantum Public-Key Encryption with Tamper-Resilient Public Keys from One-Way Functions. CRYPTO (7) 2024: 93-125 - [c47]Taiga Hiroka, Fuyuki Kitagawa, Tomoyuki Morimae, Ryo Nishimaki, Tapas Pal
, Takashi Yamakawa:
Certified Everlasting Secure Collusion-Resistant Functional Encryption, and More. EUROCRYPT (3) 2024: 434-456 - [c46]Taiga Hiroka, Fuyuki Kitagawa, Ryo Nishimaki, Takashi Yamakawa:
Robust Combiners and Universal Constructions for Quantum Cryptography. TCC (2) 2024: 126-158 - [i63]Jeffrey Champion, Fuyuki Kitagawa, Ryo Nishimaki, Takashi Yamakawa:
Untelegraphable Encryption and its Applications. CoRR abs/2410.24189 (2024) - [i62]Shweta Agrawal, Simran Kumari, Ryo Nishimaki:
Pre-Constrained Cryptography: Broad Definitions, New Constructions, Unbounded Security. IACR Cryptol. ePrint Arch. 2024: 1294 (2024) - [i61]Dominique Bazin, Ryo Nishimaki:
A Note on Security Definitions for Secret Sharing with Certified Deletion. IACR Cryptol. ePrint Arch. 2024: 1690 (2024) - 2023
- [j16]Masayuki Abe, Dennis Hofheinz, Ryo Nishimaki, Miyako Ohkubo, Jiaxin Pan:
Compact Structure-Preserving Signatures with Almost Tight Security. J. Cryptol. 36(4): 37 (2023) - [c45]Shweta Agrawal, Fuyuki Kitagawa, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Public Key Encryption with Secure Key Leasing. EUROCRYPT (1) 2023: 581-610 - [c44]James Bartusek, Fuyuki Kitagawa, Ryo Nishimaki, Takashi Yamakawa:
Obfuscation of Pseudo-Deterministic Quantum Circuits. STOC 2023: 1567-1578 - [c43]Fuyuki Kitagawa, Ryo Nishimaki, Takashi Yamakawa:
Publicly Verifiable Deletion from Minimal Assumptions. TCC (4) 2023: 228-245 - [c42]Fuyuki Kitagawa, Ryo Nishimaki:
One-Out-of-Many Unclonable Cryptography: Definitions, Constructions, and More. TCC (4) 2023: 246-275 - [i60]Fuyuki Kitagawa, Ryo Nishimaki:
One-out-of-Many Unclonable Cryptography: Definitions, Constructions, and More. CoRR abs/2302.09836 (2023) - [i59]Taiga Hiroka, Fuyuki Kitagawa, Tomoyuki Morimae, Ryo Nishimaki, Tapas Pal, Takashi Yamakawa:
Certified Everlasting Secure Collusion-Resistant Functional Encryption, and More. CoRR abs/2302.10354 (2023) - [i58]James Bartusek, Fuyuki Kitagawa, Ryo Nishimaki, Takashi Yamakawa:
Obfuscation of Pseudo-Deterministic Quantum Circuits. CoRR abs/2302.11083 (2023) - [i57]Shweta Agrawal, Fuyuki Kitagawa, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Public Key Encryption with Secure Key Leasing. CoRR abs/2302.11663 (2023) - [i56]Fuyuki Kitagawa, Tomoyuki Morimae, Ryo Nishimaki, Takashi Yamakawa:
Quantum Public-Key Encryption with Tamper-Resilient Public Keys from One-Way Functions. CoRR abs/2304.01800 (2023) - [i55]Fuyuki Kitagawa, Ryo Nishimaki, Takashi Yamakawa:
Publicly Verifiable Deletion from Minimal Assumptions. CoRR abs/2304.07062 (2023) - [i54]Fuyuki Kitagawa, Ryo Nishimaki:
One-out-of-Many Unclonable Cryptography: Definitions, Constructions, and More. IACR Cryptol. ePrint Arch. 2023: 229 (2023) - [i53]Taiga Hiroka, Fuyuki Kitagawa, Tomoyuki Morimae, Ryo Nishimaki, Tapas Pal, Takashi Yamakawa:
Certified Everlasting Secure Collusion-Resistant Functional Encryption, and More. IACR Cryptol. ePrint Arch. 2023: 236 (2023) - [i52]James Bartusek, Fuyuki Kitagawa, Ryo Nishimaki, Takashi Yamakawa:
Obfuscation of Pseudo-Deterministic Quantum Circuits. IACR Cryptol. ePrint Arch. 2023: 252 (2023) - [i51]Shweta Agrawal, Fuyuki Kitagawa, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Public Key Encryption with Secure Key Leasing. IACR Cryptol. ePrint Arch. 2023: 264 (2023) - [i50]Fuyuki Kitagawa, Tomoyuki Morimae, Ryo Nishimaki, Takashi Yamakawa:
Quantum Public-Key Encryption with Tamper-Resilient Public Keys from One-Way Functions. IACR Cryptol. ePrint Arch. 2023: 490 (2023) - [i49]Fuyuki Kitagawa, Ryo Nishimaki, Takashi Yamakawa:
Publicly Verifiable Deletion from Minimal Assumptions. IACR Cryptol. ePrint Arch. 2023: 538 (2023) - [i48]Taiga Hiroka, Fuyuki Kitagawa, Ryo Nishimaki, Takashi Yamakawa:
Robust Combiners and Universal Constructions for Quantum Cryptography. IACR Cryptol. ePrint Arch. 2023: 1772 (2023) - 2022
- [j15]Shweta Agrawal, Rajarshi Biswas, Ryo Nishimaki, Keita Xagawa, Xiang Xie, Shota Yamada:
Cryptanalysis of Boyen's attribute-based encryption scheme in TCC 2013. Des. Codes Cryptogr. 90(10): 2301-2318 (2022) - [j14]Fuyuki Kitagawa, Ryo Nishimaki, Keisuke Tanaka:
Obfustopia Built on Secret-Key Functional Encryption. J. Cryptol. 35(3): 19 (2022) - [c41]Fuyuki Kitagawa, Ryo Nishimaki:
Functional Encryption with Secure Key Leasing. ASIACRYPT (4) 2022: 569-598 - [c40]Taiga Hiroka, Tomoyuki Morimae, Ryo Nishimaki, Takashi Yamakawa:
Certified Everlasting Zero-Knowledge Proof for QMA. CRYPTO (1) 2022: 239-268 - [c39]Fuyuki Kitagawa, Ryo Nishimaki:
Watermarking PRFs Against Quantum Adversaries. EUROCRYPT (3) 2022: 488-518 - [c38]Ryo Nishimaki:
The Direction of Updatable Encryption Does Matter. Public Key Cryptography (2) 2022: 194-224 - [c37]Fuyuki Kitagawa, Ryo Nishimaki:
KDM Security for the Fujisaki-Okamoto Transformations in the QROM. Public Key Cryptography (2) 2022: 286-315 - [c36]Shweta Agrawal, Fuyuki Kitagawa, Anuja Modi, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Bounded Functional Encryption for Turing Machines: Adaptive Security from General Assumptions. TCC (1) 2022: 618-647 - [i47]Fuyuki Kitagawa, Ryo Nishimaki:
Watermarking PRFs against Quantum Adversaries. CoRR abs/2205.11034 (2022) - [i46]Taiga Hiroka, Tomoyuki Morimae, Ryo Nishimaki, Takashi Yamakawa:
Certified Everlasting Functional Encryption. CoRR abs/2207.13878 (2022) - [i45]Fuyuki Kitagawa, Ryo Nishimaki:
Functional Encryption with Secure Key Leasing. CoRR abs/2209.13081 (2022) - [i44]Shweta Agrawal, Fuyuki Kitagawa, Anuja Modi, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Bounded Functional Encryption for Turing Machines: Adaptive Security from General Assumptions. IACR Cryptol. ePrint Arch. 2022: 316 (2022) - [i43]Fuyuki Kitagawa, Ryo Nishimaki:
Watermarking PRFs against Quantum Adversaries. IACR Cryptol. ePrint Arch. 2022: 631 (2022) - [i42]Taiga Hiroka, Tomoyuki Morimae, Ryo Nishimaki, Takashi Yamakawa:
Certified Everlasting Functional Encryption. IACR Cryptol. ePrint Arch. 2022: 969 (2022) - [i41]Fuyuki Kitagawa, Ryo Nishimaki:
Functional Encryption with Secure Key Leasing. IACR Cryptol. ePrint Arch. 2022: 1252 (2022) - 2021
- [j13]Junichi Tomida, Yuto Kawahara, Ryo Nishimaki:
Fast, compact, and expressive attribute-based encryption. Des. Codes Cryptogr. 89(11): 2577-2626 (2021) - [j12]Fuyuki Kitagawa, Ryo Nishimaki, Keisuke Tanaka:
Simple and Generic Constructions of Succinct Functional Encryption. J. Cryptol. 34(3): 25 (2021) - [j11]Shuichi Katsumata, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Compact Designated Verifier NIZKs from the CDH Assumption Without Pairings. J. Cryptol. 34(4): 42 (2021) - [c35]Taiga Hiroka, Tomoyuki Morimae, Ryo Nishimaki, Takashi Yamakawa:
Quantum Encryption with Certified Deletion, Revisited: Public Key, Attribute-Based, and Classical Communication. ASIACRYPT (1) 2021: 606-636 - [c34]Shuichi Katsumata, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Round-Optimal Blind Signatures in the Plain Model from Classical and Quantum Standard Assumptions. EUROCRYPT (1) 2021: 404-434 - [c33]Nico Döttling, Ryo Nishimaki:
Universal Proxy Re-Encryption. Public Key Cryptography (1) 2021: 512-542 - [c32]Fuyuki Kitagawa, Ryo Nishimaki, Takashi Yamakawa:
Secure Software Leasing from Standard Assumptions. TCC (1) 2021: 31-61 - [i40]Taiga Hiroka, Tomoyuki Morimae, Ryo Nishimaki, Takashi Yamakawa:
Quantum Encryption with Certified Deletion, Revisited: Public Key, Attribute-Based, and Classical Communication. CoRR abs/2105.05393 (2021) - [i39]Taiga Hiroka, Tomoyuki Morimae, Ryo Nishimaki, Takashi Yamakawa:
Certified Everlasting Zero-Knowledge Proof for QMA. CoRR abs/2109.14163 (2021) - [i38]Ryo Nishimaki:
The Direction of Updatable Encryption Does Matter. IACR Cryptol. ePrint Arch. 2021: 221 (2021) - [i37]Shuichi Katsumata, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Round-Optimal Blind Signatures in the Plain Model from Classical and Quantum Standard Assumptions. IACR Cryptol. ePrint Arch. 2021: 306 (2021) - [i36]Ryo Nishimaki, Takashi Yamakawa:
Quantum Encryption with Certified Deletion: Public Key and Attribute-Based. IACR Cryptol. ePrint Arch. 2021: 394 (2021) - [i35]Shweta Agrawal, Rajarshi Biswas, Ryo Nishimaki, Keita Xagawa, Xiang Xie, Shota Yamada:
Cryptanalysis of Boyen's Attribute-Based Encryption Scheme in TCC 2013. IACR Cryptol. ePrint Arch. 2021: 505 (2021) - [i34]Taiga Hiroka, Tomoyuki Morimae, Ryo Nishimaki, Takashi Yamakawa:
Quantum Encryption with Certified Deletion, Revisited: Public Key, Attribute-Based, and Classical Communication. IACR Cryptol. ePrint Arch. 2021: 617 (2021) - [i33]Fuyuki Kitagawa, Ryo Nishimaki, Keisuke Tanaka:
Obfustopia Built on Secret-Key Functional Encryption. IACR Cryptol. ePrint Arch. 2021: 1018 (2021) - [i32]Fuyuki Kitagawa, Ryo Nishimaki:
KDM Security for the Fujisaki-Okamoto Transformations in the QROM. IACR Cryptol. ePrint Arch. 2021: 1200 (2021) - [i31]Taiga Hiroka, Tomoyuki Morimae, Ryo Nishimaki, Takashi Yamakawa:
Certified Everlasting Zero-Knowledge Proof for QMA. IACR Cryptol. ePrint Arch. 2021: 1315 (2021) - 2020
- [j10]Nir Bitansky, Ryo Nishimaki, Alain Passelègue, Daniel Wichs:
From Cryptomania to Obfustopia Through Secret-Key Functional Encryption. J. Cryptol. 33(2): 357-405 (2020) - [c31]Shuichi Katsumata, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Adaptively Secure Inner Product Encryption from LWE. ASIACRYPT (3) 2020: 375-404 - [c30]Alex Davidson, Shuichi Katsumata, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Adaptively Secure Constrained Pseudorandom Functions in the Standard Model. CRYPTO (1) 2020: 559-589 - [c29]Shuichi Katsumata, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Compact NIZKs from Standard Assumptions on Bilinear Maps. EUROCRYPT (3) 2020: 379-409 - [c28]Junichi Tomida, Yuto Kawahara, Ryo Nishimaki:
Fast, Compact, and Expressive Attribute-Based Encryption. Public Key Cryptography (1) 2020: 3-33 - [c27]Ryo Nishimaki:
Equipping Public-Key Cryptographic Primitives with Watermarking (or: A Hole Is to Watermark). TCC (1) 2020: 179-209 - [i30]Fuyuki Kitagawa, Ryo Nishimaki, Takashi Yamakawa:
Secure Software Leasing from Standard Assumptions. CoRR abs/2010.11186 (2020) - [i29]Alex Davidson, Shuichi Katsumata, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Adaptively Secure Constrained Pseudorandom Functions in the Standard Model. IACR Cryptol. ePrint Arch. 2020: 111 (2020) - [i28]Shuichi Katsumata, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Compact NIZKs from Standard Assumptions on Bilinear Maps. IACR Cryptol. ePrint Arch. 2020: 223 (2020) - [i27]Shuichi Katsumata, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Adaptively Secure Inner Product Encryption from LWE. IACR Cryptol. ePrint Arch. 2020: 1135 (2020) - [i26]Ryo Nishimaki:
Equipping Public-Key Cryptographic Primitives with Watermarking (or: A Hole Is to Watermark). IACR Cryptol. ePrint Arch. 2020: 1173 (2020) - [i25]Fuyuki Kitagawa, Ryo Nishimaki, Takashi Yamakawa:
Secure Software Leasing from Standard Assumptions. IACR Cryptol. ePrint Arch. 2020: 1314 (2020)
2010 – 2019
- 2019
- [j9]Ryo Nishimaki:
How to Watermark Cryptographic Functions by Bilinear Maps. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 102-A(1): 99-113 (2019) - [c26]Fuyuki Kitagawa, Ryo Nishimaki, Keisuke Tanaka, Takashi Yamakawa:
Adaptively Secure and Succinct Functional Encryption: Improving Security and Efficiency, Simultaneously. CRYPTO (3) 2019: 521-551 - [c25]Shuichi Katsumata, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Exploring Constructions of Compact NIZKs from Various Assumptions. CRYPTO (3) 2019: 639-669 - [c24]Shuichi Katsumata, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Designated Verifier/Prover and Preprocessing NIZKs from Diffie-Hellman Assumptions. EUROCRYPT (2) 2019: 622-651 - [c23]Nuttapong Attrapadung, Takahiro Matsuda, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Adaptively Single-Key Secure Constrained PRFs for \mathrm NC^1. Public Key Cryptography (2) 2019: 223-253 - [c22]Ryo Nishimaki, Takashi Yamakawa:
Leakage-Resilient Identity-Based Encryption in Bounded Retrieval Model with Nearly Optimal Leakage-Ratio. Public Key Cryptography (1) 2019: 466-495 - [i24]Ryo Nishimaki, Takashi Yamakawa:
Leakage-resilient Identity-based Encryption in Bounded Retrieval Model with Nearly Optimal Leakage-Ratio. IACR Cryptol. ePrint Arch. 2019: 45 (2019) - [i23]Shuichi Katsumata, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Designated Verifier/Prover and Preprocessing NIZKs from Diffie-Hellman Assumptions. IACR Cryptol. ePrint Arch. 2019: 255 (2019) - [i22]Shuichi Katsumata, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Exploring Constructions of Compact NIZKs from Various Assumptions. IACR Cryptol. ePrint Arch. 2019: 623 (2019) - [i21]Junichi Tomida, Yuto Kawahara, Ryo Nishimaki:
Fast, Compact, and Expressive Attribute-Based Encryption. IACR Cryptol. ePrint Arch. 2019: 966 (2019) - 2018
- [j8]Aloni Cohen, Justin Holmgren, Ryo Nishimaki, Vinod Vaikuntanathan, Daniel Wichs:
Watermarking Cryptographic Capabilities. SIAM J. Comput. 47(6): 2157-2202 (2018) - [c21]Nuttapong Attrapadung, Takahiro Matsuda, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Constrained PRFs for \mathrmNC^1 in Traditional Groups. CRYPTO (2) 2018: 543-574 - [c20]Fuyuki Kitagawa, Ryo Nishimaki, Keisuke Tanaka:
Obfustopia Built on Secret-Key Functional Encryption. EUROCRYPT (2) 2018: 603-648 - [c19]Fuyuki Kitagawa, Ryo Nishimaki, Keisuke Tanaka:
Simple and Generic Constructions of Succinct Functional Encryption. Public Key Cryptography (2) 2018: 187-217 - [i20]Nuttapong Attrapadung, Takahiro Matsuda, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Constrained PRFs for NC1 in Traditional Groups. IACR Cryptol. ePrint Arch. 2018: 154 (2018) - [i19]Nico Döttling, Ryo Nishimaki:
Universal Proxy Re-Encryption. IACR Cryptol. ePrint Arch. 2018: 840 (2018) - [i18]Alex Davidson, Ryo Nishimaki:
A Bit-fixing PRF with O(1) Collusion-Resistance from LWE. IACR Cryptol. ePrint Arch. 2018: 890 (2018) - [i17]Fuyuki Kitagawa, Ryo Nishimaki, Keisuke Tanaka, Takashi Yamakawa:
Adaptively Secure and Succinct Functional Encryption: Improving Security and Efficiency, Simultaneously. IACR Cryptol. ePrint Arch. 2018: 974 (2018) - [i16]Alex Davidson, Shuichi Katsumata, Ryo Nishimaki, Shota Yamada:
Constrained PRFs for Bit-fixing from OWFs with Constant Collusion Resistance. IACR Cryptol. ePrint Arch. 2018: 982 (2018) - [i15]Nuttapong Attrapadung, Takahiro Matsuda, Ryo Nishimaki, Shota Yamada, Takashi Yamakawa:
Adaptively Single-Key Secure Constrained PRFs for NC1. IACR Cryptol. ePrint Arch. 2018: 1000 (2018) - 2017
- [c18]Masayuki Abe, Dennis Hofheinz, Ryo Nishimaki, Miyako Ohkubo, Jiaxin Pan:
Compact Structure-Preserving Signatures with Almost Tight Security. CRYPTO (2) 2017: 548-580 - [i14]Fuyuki Kitagawa, Ryo Nishimaki, Keisuke Tanaka:
Indistinguishability Obfuscation: Simpler Constructions using Secret-Key Functional Encryption. IACR Cryptol. ePrint Arch. 2017: 275 (2017) - [i13]Fuyuki Kitagawa, Ryo Nishimaki, Keisuke Tanaka:
Indistinguishability Obfuscation for All Circuits from Secret-Key Functional Encryption. IACR Cryptol. ePrint Arch. 2017: 361 (2017) - [i12]Masayuki Abe, Dennis Hofheinz, Ryo Nishimaki, Miyako Ohkubo, Jiaxin Pan:
Compact Structure-preserving Signatures with Almost Tight Security. IACR Cryptol. ePrint Arch. 2017: 524 (2017) - [i11]Fuyuki Kitagawa, Ryo Nishimaki, Keisuke Tanaka:
From Single-Key to Collusion-Resistant Secret-Key Functional Encryption by Leveraging Succinctness. IACR Cryptol. ePrint Arch. 2017: 638 (2017) - 2016
- [j7]Masayuki Abe, Melissa Chase, Bernardo David, Markulf Kohlweiss, Ryo Nishimaki, Miyako Ohkubo:
Constant-Size Structure-Preserving Signatures: Generic Constructions and Simple Assumptions. J. Cryptol. 29(4): 833-878 (2016) - [c17]Ryo Nishimaki, Daniel Wichs, Mark Zhandry:
Anonymous Traitor Tracing: How to Embed Arbitrary Information in a Key. EUROCRYPT (2) 2016: 388-419 - [c16]Ryo Nishimaki:
Watermarking Cryptographic Programs. Mycrypt 2016: 521-543 - [c15]Aloni Cohen, Justin Holmgren, Ryo Nishimaki, Vinod Vaikuntanathan, Daniel Wichs:
Watermarking cryptographic capabilities. STOC 2016: 1115-1127 - [c14]Nir Bitansky, Ryo Nishimaki, Alain Passelègue, Daniel Wichs:
From Cryptomania to Obfustopia Through Secret-Key Functional Encryption. TCC (B2) 2016: 391-418 - [i10]Nir Bitansky, Ryo Nishimaki, Alain Passelègue, Daniel Wichs:
From Cryptomania to Obfustopia through Secret-Key Functional Encryption. IACR Cryptol. ePrint Arch. 2016: 558 (2016) - 2015
- [j6]Ryo Nishimaki, Keita Xagawa:
Verifiably encrypted signatures with short keys based on the decisional linear problem and obfuscation for encrypted VES. Des. Codes Cryptogr. 77(1): 61-98 (2015) - [j5]Ryo Nishimaki, Keita Xagawa:
Key-Private Proxy Re-Encryption from Lattices, Revisited. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 98-A(1): 100-116 (2015) - [j4]Eiichiro Fujisaki, Akinori Kawachi, Ryo Nishimaki, Keisuke Tanaka, Kenji Yasunaga:
Post-Challenge Leakage Resilient Public-Key Cryptosystem in Split State Model. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 98-A(3): 853-862 (2015) - [c13]Bernardo Machado David, Ryo Nishimaki, Samuel Ranellucci, Alain Tapp:
Generalizing Efficient Multiparty Computation. ICITS 2015: 15-32 - [i9]Bernardo David, Ryo Nishimaki, Samuel Ranellucci, Alain Tapp:
Generalizing Efficient Multiparty Computation. IACR Cryptol. ePrint Arch. 2015: 135 (2015) - [i8]Ryo Nishimaki, Keita Xagawa:
Verifiably Encrypted Signatures with Short Keys based on the Decisional Linear Problem and Obfuscation for Encrypted VES. IACR Cryptol. ePrint Arch. 2015: 248 (2015) - [i7]Masayuki Abe, Bernardo David, Markulf Kohlweiss, Ryo Nishimaki, Miyako Ohkubo:
Tagged One-Time Signatures: Tight Security and Optimal Tag Size. IACR Cryptol. ePrint Arch. 2015: 311 (2015) - [i6]Ryo Nishimaki, Daniel Wichs:
Watermarking Cryptographic Programs Against Arbitrary Removal Strategies. IACR Cryptol. ePrint Arch. 2015: 344 (2015) - [i5]Nishanth Chandran, Melissa Chase, Feng-Hao Liu, Ryo Nishimaki, Keita Xagawa:
Re-encryption, functional re-encryption, and multi-hop re-encryption: A framework for achieving obfuscation-based security and instantiations from lattices. IACR Cryptol. ePrint Arch. 2015: 491 (2015) - [i4]Ryo Nishimaki, Daniel Wichs, Mark Zhandry:
Anonymous Traitor Tracing: How to Embed Arbitrary Information in a Key. IACR Cryptol. ePrint Arch. 2015: 750 (2015) - [i3]Aloni Cohen, Justin Holmgren, Ryo Nishimaki, Vinod Vaikuntanathan, Daniel Wichs:
Watermarking Cryptographic Capabilities. IACR Cryptol. ePrint Arch. 2015: 1096 (2015) - 2014
- [c12]Nishanth Chandran, Melissa Chase, Feng-Hao Liu, Ryo Nishimaki, Keita Xagawa:
Re-encryption, Functional Re-encryption, and Multi-hop Re-encryption: A Framework for Achieving Obfuscation-Based Security and Instantiations from Lattices. Public Key Cryptography 2014: 95-112 - [i2]Ryo Nishimaki:
How to Watermark Cryptographic Functions. IACR Cryptol. ePrint Arch. 2014: 472 (2014) - 2013
- [c11]Masayuki Abe, Jan Camenisch, Maria Dubovitskaya, Ryo Nishimaki:
Universally composable adaptive oblivious transfer (with access control) from standard assumptions. Digital Identity Management 2013: 1-12 - [c10]Ryo Nishimaki:
How to Watermark Cryptographic Functions. EUROCRYPT 2013: 111-125 - [c9]Masayuki Abe, Bernardo David, Markulf Kohlweiss, Ryo Nishimaki, Miyako Ohkubo:
Tagged One-Time Signatures: Tight Security and Optimal Tag Size. Public Key Cryptography 2013: 312-331 - [c8]Ryo Nishimaki, Keita Xagawa:
Verifiably Encrypted Signatures with Short Keys Based on the Decisional Linear Problem and Obfuscation for Encrypted VES. Public Key Cryptography 2013: 405-422 - 2012
- [j3]Ryo Nishimaki, Eiichiro Fujisaki, Keisuke Tanaka:
An Efficient Non-interactive Universally Composable String-Commitment Scheme. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 95-A(1): 167-175 (2012) - [j2]Ryo Nishimaki, Eiichiro Fujisaki, Keisuke Tanaka:
A Multi-Trapdoor Commitment Scheme from the RSA Assumption. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 95-A(1): 176-184 (2012) - [c7]Masayuki Abe, Melissa Chase, Bernardo David, Markulf Kohlweiss, Ryo Nishimaki, Miyako Ohkubo:
Constant-Size Structure-Preserving Signatures: Generic Constructions and Simple Assumptions. ASIACRYPT 2012: 4-24 - [i1]Masayuki Abe, Melissa Chase, Bernardo David, Markulf Kohlweiss, Ryo Nishimaki, Miyako Ohkubo:
Constant-Size Structure-Preserving Signatures: Generic Constructions and Simple Assumptions. IACR Cryptol. ePrint Arch. 2012: 285 (2012) - 2010
- [c6]Ryo Nishimaki, Eiichiro Fujisaki, Keisuke Tanaka:
A Multi-trapdoor Commitment Scheme from the RSA Assumption. ACISP 2010: 182-199 - [c5]Toshihide Matsuda, Ryo Nishimaki, Keisuke Tanaka:
CCA Proxy Re-Encryption without Bilinear Maps in the Standard Model. Public Key Cryptography 2010: 261-278
2000 – 2009
- 2009
- [c4]Toshihide Matsuda, Ryo Nishimaki, Akira Numayama, Keisuke Tanaka:
Security on Hybrid Encryption with the Tag-KEM/DEM Framework. ACISP 2009: 343-359 - [c3]Ryo Nishimaki, Eiichiro Fujisaki, Keisuke Tanaka:
Efficient Non-interactive Universally Composable String-Commitment Schemes. ProvSec 2009: 3-18 - [c2]Eiichiro Fujisaki, Ryo Nishimaki, Keisuke Tanaka:
On the Insecurity of the Fiat-Shamir Signatures with Iterative Hash Functions. ProvSec 2009: 118-128 - 2008
- [j1]Ryo Nishimaki, Yoshifumi Manabe, Tatsuaki Okamoto:
Universally Composable Identity-Based Encryption. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 91-A(1): 262-271 (2008) - 2006
- [c1]Ryo Nishimaki, Yoshifumi Manabe, Tatsuaki Okamoto:
Universally Composable Identity-Based Encryption. VIETCRYPT 2006: 337-353
Coauthor Index
[j17] [c48] [c47] [c46] [i63] [c45] [c44] [c43] [i59] [i58] [i57] [i56] [i55] [i53] [i52] [i51] [i50] [i49] [i48] [c40] [c36] [i46] [i44] [i42] [j11] [c35] [c34] [c32] [i40] [i39] [i37] [i36] [i34] [i31] [c31] [c30] [c29] [i30] [i29] [i28] [i27] [i25] [c26] [c25] [c24] [c23] [c22] [i24] [i23] [i22] [c21] [i20] [i17] [i15]
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last updated on 2024-12-13 19:13 CET by the dblp team
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