Atsushi Takayasu

Publication Activity (10 Years)

Years Active: 2013-2024
Publications (10 Years): 63

Top Topics

Signature Scheme

Top Venues

IACR Cryptol. ePrint Arch.

IEICE Trans. Fundam. Electron. Commun. Comput. Sci.

Theor. Comput. Sci.

Des. Codes Cryptogr.

Publications

Kyoichi Asano, Keita Emura, Atsushi Takayasu
More Efficient Adaptively Secure Lattice-Based IBE with Equality Test in the Standard Model. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 107 (3) (2024)
Keita Emura, Shingo Sato, Atsushi Takayasu
Attribute-based Keyed (Fully) Homomorphic Encryption. IACR Cryptol. ePrint Arch. 2024 (2024)
Ren Taguchi, Atsushi Takayasu
On the Untapped Potential of the Quantum FLT-Based Inversion. ACNS (2) (2024)
Ren Taguchi, Atsushi Takayasu
On the Untapped Potential of the Quantum FLT-based Inversion. IACR Cryptol. ePrint Arch. 2024 (2024)
Yen-Ting Kuo, Atsushi Takayasu
A Lattice Attack on CRYSTALS-Kyber with Correlation Power Analysis. ICISC (1) (2023)
Keita Emura, Atsushi Takayasu
A Generic Construction of CCA-Secure Identity-Based Encryption with Equality Test against Insider Attacks. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 106 (3) (2023)
Ren Taguchi, Atsushi Takayasu
Concrete Quantum Cryptanalysis of Binary Elliptic Curves via Addition Chain. IACR Cryptol. ePrint Arch. 2023 (2023)
Ren Taguchi, Atsushi Takayasu
Concrete Quantum Cryptanalysis of Binary Elliptic Curves via Addition Chain. CT-RSA (2023)
Yen-Ting Kuo, Atsushi Takayasu
A Lattice Attack on CRYSTALS-Kyber with Correlation Power Analysis. IACR Cryptol. ePrint Arch. 2023 (2023)
Naoto Kimura, Atsushi Takayasu, Tsuyoshi Takagi
Memory-Efficient Quantum Information Set Decoding Algorithm. ACISP (2023)
Kohei Nakagawa, Hiroshi Onuki, Atsushi Takayasu, Tsuyoshi Takagi
L1-norm ball for CSIDH: Optimal strategy for choosing the secret key space. Discret. Appl. Math. 328 (2023)
Kyoichi Asano, Keita Emura, Atsushi Takayasu
More Efficient Adaptively Secure Lattice-based IBE with Equality Test in the Standard Model. IACR Cryptol. ePrint Arch. 2022 (2022)
Kyoichi Asano, Keita Emura, Atsushi Takayasu, Yohei Watanabe
A Generic Construction of CCA-Secure Attribute-Based Encryption with Equality Test. ProvSec (2022)
Kyoichi Asano, Keita Emura, Atsushi Takayasu
More Efficient Adaptively Secure Lattice-Based IBE with Equality Test in the Standard Model. ISC (2022)
Shingo Sato, Keita Emura, Atsushi Takayasu
Keyed-Fully Homomorphic Encryption Without Indistinguishability Obfuscation. ACNS (2022)
Shingo Sato, Keita Emura, Atsushi Takayasu
Keyed-Fully Homomorphic Encryption without Indistinguishability Obfuscation. IACR Cryptol. ePrint Arch. 2022 (2022)
Hiroki Okada, Atsushi Takayasu, Kazuhide Fukushima, Shinsaku Kiyomoto, Tsuyoshi Takagi
pp.1219-1234]. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (2) (2022)
Keita Emura, Atsushi Takayasu, Yohei Watanabe
Generic Constructions of Revocable Hierarchical Identity-based Encryption. IACR Cryptol. ePrint Arch. 2021 (2021)
Atsushi Takayasu
Adaptively secure lattice-based revocable IBE in the QROM: compact parameters, tight security, and anonymity. Des. Codes Cryptogr. 89 (8) (2021)
Keita Emura, Atsushi Takayasu, Yohei Watanabe
Efficient identity-based encryption with Hierarchical key-insulation from HIBE. Des. Codes Cryptogr. 89 (10) (2021)
Atsushi Takayasu
Tag-based ABE in prime-order groups via pair encoding. Des. Codes Cryptogr. 89 (8) (2021)
Kyoichi Asano, Keita Emura, Atsushi Takayasu, Yohei Watanabe
A Generic Construction of CCA-secure Attribute-based Encryption with Equality Test. IACR Cryptol. ePrint Arch. 2021 (2021)
Atsushi Takayasu, Yohei Watanabe
Revocable identity-based encryption with bounded decryption key exposure resistance: Lattice-based construction and more. Theor. Comput. Sci. 849 (2021)
Hiroki Okada, Atsushi Takayasu, Kazuhide Fukushima, Shinsaku Kiyomoto, Tsuyoshi Takagi
A Compact Digital Signature Scheme Based on the Module-LWR Problem. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (9) (2021)
Hiroki Okada, Atsushi Takayasu, Kazuhide Fukushima, Shinsaku Kiyomoto, Tsuyoshi Takagi
A Compact Digital Signature Scheme Based on the Module-LWR problem. IACR Cryptol. ePrint Arch. 2021 (2021)
Atsushi Takayasu
Adaptively Secure Lattice-based Revocable IBE in the QROM: Compact Parameters, Tight Security, and Anonymity. IACR Cryptol. ePrint Arch. 2021 (2021)
Keita Emura, Atsushi Takayasu, Yohei Watanabe
Adaptively secure revocable hierarchical IBE from k-linear assumption. Des. Codes Cryptogr. 89 (7) (2021)
Atsushi Takayasu
More Efficient Adaptively Secure Revocable Hierarchical Identity-based Encryption with Compact Ciphertexts: Achieving Shorter Keys and Tighter Reductions. IACR Cryptol. ePrint Arch. 2021 (2021)
Hiroki Okada, Atsushi Takayasu, Kazuhide Fukushima, Shinsaku Kiyomoto, Tsuyoshi Takagi
A Compact Digital Signature Scheme Based on the Module-LWR Problem. ICICS (2020)
Shuichi Katsumata, Takahiro Matsuda, Atsushi Takayasu
Lattice-based revocable (hierarchical) IBE with decryption key exposure resistance. Theor. Comput. Sci. 809 (2020)
Kohei Nakagawa, Hiroshi Onuki, Atsushi Takayasu, Tsuyoshi Takagi
-Norm Ball for CSIDH: Optimal Strategy for Choosing the Secret Key Space. IACR Cryptol. ePrint Arch. 2020 (2020)
Keita Emura, Atsushi Takayasu, Yohei Watanabe
Efficient Identity-Based Encryption with Hierarchical Key-Insulation from HIBE. IACR Cryptol. ePrint Arch. 2020 (2020)
Keita Emura, Atsushi Takayasu, Yohei Watanabe
Adaptively Secure Revocable Hierarchical IBE from k-linear Assumption. IACR Cryptol. ePrint Arch. 2020 (2020)
Noboru Kunihiro, Atsushi Takayasu
Worst case short lattice vector enumeration on block reduced bases of arbitrary blocksizes. Discret. Appl. Math. 277 (2020)
Hiroki Okada, Atsushi Takayasu, Kazuhide Fukushima, Shinsaku Kiyomoto, Tsuyoshi Takagi
On the Complexity of the LWR-Solving BKW Algorithm. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2020)
Kaichi Suzuki, Atsushi Takayasu, Noboru Kunihiro
Extended partial key exposure attacks on RSA: Improvement up to full size decryption exponents. Theor. Comput. Sci. 841 (2020)
Shuichi Katsumata, Takahiro Matsuda, Atsushi Takayasu
Lattice-Based Revocable (Hierarchical) IBE with Decryption Key Exposure Resistance. Public Key Cryptography (2) (2019)
Taiga Mizuide, Atsushi Takayasu, Tsuyoshi Takagi
Tight Reductions for Diffie-Hellman Variants in the Algebraic Group Model. CT-RSA (2019)
Liqiang Peng, Atsushi Takayasu
Generalized cryptanalysis of small CRT-exponent RSA. Theor. Comput. Sci. 795 (2019)
Atsushi Takayasu, Yao Lu, Liqiang Peng
Small CRT-Exponent RSA Revisited. J. Cryptol. 32 (4) (2019)
Kotaro Matsuda, Atsushi Takayasu, Tsuyoshi Takagi
Explicit Relation between Low-Dimensional LLL-Reduced Bases and Shortest Vectors. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (9) (2019)
Atsushi Takayasu, Noboru Kunihiro
Partial key exposure attacks on RSA: Achieving the Boneh-Durfee bound. Theor. Comput. Sci. 761 (2019)
Hiroki Okada, Atsushi Takayasu, Kazuhide Fukushima, Shinsaku Kiyomoto, Tsuyoshi Takagi
On the Complexity of the LWR-Solving BKW Algorithm. ICISC (2018)
Taiga Mizuide, Atsushi Takayasu, Tsuyoshi Takagi
Tight Reductions for Diffie-Hellman Variants in the Algebraic Group Model. IACR Cryptol. ePrint Arch. 2018 (2018)
Weiyao Wang, Yuntao Wang, Atsushi Takayasu, Tsuyoshi Takagi
Estimated Cost for Solving Generalized Learning with Errors Problem via Embedding Techniques. IWSEC (2018)
Atsushi Takayasu, Noboru Kunihiro
Partial Key Exposure Attacks on RSA: Achieving the Boneh-Durfee Bound. IACR Cryptol. ePrint Arch. 2018 (2018)
Shuichi Katsumata, Takahiro Matsuda, Atsushi Takayasu
Lattice-based Revocable (Hierarchical) IBE with Decryption Key Exposure Resistance. IACR Cryptol. ePrint Arch. 2018 (2018)
Atsushi Takayasu, Noboru Kunihiro
A Tool Kit for Partial Key Exposure Attacks on RSA. CT-RSA (2017)
Atsushi Takayasu, Yohei Watanabe
Lattice-based Revocable Identity-based Encryption with Bounded Decryption Key Exposure Resistance. IACR Cryptol. ePrint Arch. 2017 (2017)
Atsushi Takayasu, Yao Lu, Liqiang Peng
Small CRT-Exponent RSA Revisited. IACR Cryptol. ePrint Arch. 2017 (2017)
Atsushi Takayasu, Yohei Watanabe
Lattice-Based Revocable Identity-Based Encryption with Bounded Decryption Key Exposure Resistance. ACISP (1) (2017)
Atsushi Takayasu, Noboru Kunihiro
General Bounds for Small Inverse Problems and Its Applications to Multi-Prime RSA. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2017)
Atsushi Takayasu, Yao Lu, Liqiang Peng
Small CRT-Exponent RSA Revisited. EUROCRYPT (2) (2017)
Atsushi Takayasu, Noboru Kunihiro
How to Generalize RSA Cryptanalyses. IACR Cryptol. ePrint Arch. 2016 (2016)
Atsushi Takayasu, Noboru Kunihiro
Partial Key Exposure Attacks on RSA with Multiple Exponent Pairs. ACISP (2) (2016)
Atsushi Takayasu, Noboru Kunihiro
Small secret exponent attacks on RSA with unbalanced prime factors. ISITA (2016)
Atsushi Takayasu, Noboru Kunihiro
A Tool Kit for Partial Key Exposure Attacks on RSA. IACR Cryptol. ePrint Arch. 2016 (2016)
Atsushi Takayasu, Noboru Kunihiro
How to Generalize RSA Cryptanalyses. Public Key Cryptography (2) (2016)
Atsushi Takayasu, Noboru Kunihiro
Partial Key Exposure Attacks on CRT-RSA: General Improvement for the Exposed Least Significant Bits. ISC (2016)
Atsushi Takayasu, Noboru Kunihiro
General Bounds for Small Inverse Problems and Its Applications to Multi-Prime RSA. IACR Cryptol. ePrint Arch. 2016 (2016)
Katsuyuki Takashima, Atsushi Takayasu
Tighter Security for Efficient Lattice Cryptography via the Rényi Divergence of Optimized Orders. ProvSec (2015)
Atsushi Takayasu, Noboru Kunihiro
Partial Key Exposure Attacks on CRT-RSA: Better Cryptanalysis to Full Size Encryption Exponents. ACNS (2015)
Katsuyuki Takashima, Atsushi Takayasu
Tighter Security for Efficient Lattice Cryptography via the Rényi Divergence of Optimized Orders. IACR Cryptol. ePrint Arch. 2015 (2015)
Atsushi Takayasu, Noboru Kunihiro
Partial Key Exposure Attacks on RSA: Achieving the Boneh-Durfee Bound. Selected Areas in Cryptography (2014)
Atsushi Takayasu, Noboru Kunihiro
General Bounds for Small Inverse Problems and Its Applications to Multi-Prime RSA. ICISC (2014)
Atsushi Takayasu, Noboru Kunihiro
Cryptanalysis of RSA with Multiple Small Secret Exponents. ACISP (2014)
Atsushi Takayasu, Noboru Kunihiro
Better Lattice Constructions for Solving Multivariate Linear Equations Modulo Unknown Divisors. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (6) (2014)
Atsushi Takayasu, Noboru Kunihiro
Better Lattice Constructions for Solving Multivariate Linear Equations Modulo Unknown Divisors. ACISP (2013)