Katsuyuki Takashima

Publication Activity (10 Years)

Years Active: 2004-2022
Publications (10 Years): 36

Top Topics

Encryption Scheme

Top Venues

IACR Cryptol. ePrint Arch.

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

Publications

Pratish Datta, Tapas Pal, Katsuyuki Takashima
Compact FE for Unbounded Attribute-Weighted Sums for Logspace from SXDH. ASIACRYPT (1) (2022)
Pratish Datta, Tapas Pal, Katsuyuki Takashima
Compact FE for Unbounded Attribute-Weighted Sums for Logspace from SXDH. IACR Cryptol. ePrint Arch. 2022 (2022)
Yuta Kambe, Yusuke Aikawa, Momonari Kudo, Masaya Yasuda, Katsuyuki Takashima, Kazuhiro Yokoyama
Implementation Report of the Kohel-Lauter-Petit-Tignol Algorithm for the Constructive Deuring Correspondence. ICMC (2021)
Yuji Hashimoto, Katsuyuki Takashima
Improved supersingularity testing of elliptic curves. JSIAM Lett. 13 (2021)
Pratish Datta, Tatsuaki Okamoto, Katsuyuki Takashima
Efficient Attribute-Based Signatures for Unbounded Arithmetic Branching Programs. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2021)
Toshiyuki Katsura, Katsuyuki Takashima
Decomposed Richelot isogenies of Jacobian varieties of hyperelliptic curves and generalized Howe curves. CoRR (2021)
Tomoki Kawashima, Katsuyuki Takashima, Yusuke Aikawa, Tsuyoshi Takagi
An Efficient Authenticated Key Exchange from Random Self-Reducibility on CSIDH. IACR Cryptol. ePrint Arch. 2020 (2020)
Tatsuaki Okamoto, Katsuyuki Takashima
Decentralized Attribute-Based Encryption and Signatures. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2020)
Katsuyuki Takashima
Expressive Attribute-Based Encryption with Constant-Size Ciphertexts from the Decisional Linear Assumption. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2020)
Pratish Datta, Tatsuaki Okamoto, Katsuyuki Takashima
Adaptively Simulation-Secure Attribute-Hiding Predicate Encryption. IEICE Trans. Inf. Syst. (7) (2020)
Yasuhiko Ikematsu, Ryoya Fukasaku, Momonari Kudo, Masaya Yasuda, Katsuyuki Takashima, Kazuhiro Yokoyama
Hybrid Meet-in-the-Middle Attacks for the Isogeny Path-Finding Problem. APKC@AsiaCCS (2020)
Toshiyuki Katsura, Katsuyuki Takashima
Counting superspecial Richelot isogenies and its cryptographic application. CoRR (2020)
Tomoki Kawashima, Katsuyuki Takashima, Yusuke Aikawa, Tsuyoshi Takagi
An Efficient Authenticated Key Exchange from Random Self-reducibility on CSIDH. ICISC (2020)
Tomoki Moriya, Katsuyuki Takashima, Tsuyoshi Takagi
Group Key Exchange from CSIDH and Its Application to Trusted Setup in Supersingular Isogeny Cryptosystems. Inscrypt (2019)
Atsushi Fujioka, Katsuyuki Takashima, Kazuki Yoneyama
One-Round Authenticated Group Key Exchange from Isogenies. ProvSec (2019)
Tatsuaki Okamoto, Katsuyuki Takashima
Fully Secure Functional Encryption with a Large Class of Relations from the Decisional Linear Assumption. J. Cryptol. 32 (4) (2019)
Pratish Datta, Tatsuaki Okamoto, Katsuyuki Takashima
Efficient Attribute-Based Signatures for Unbounded Arithmetic Branching Programs. Public Key Cryptography (1) (2019)
Pratish Datta, Tatsuaki Okamoto, Katsuyuki Takashima
Efficient Attribute-Based Signatures for Unbounded Arithmetic Branching Programs. IACR Cryptol. ePrint Arch. 2019 (2019)
Junichi Tomida, Katsuyuki Takashima
Unbounded Inner Product Functional Encryption from Bilinear Maps. IACR Cryptol. ePrint Arch. 2018 (2018)
Atsushi Fujioka, Katsuyuki Takashima, Shintaro Terada, Kazuki Yoneyama
Supersingular Isogeny Diffie-Hellman Authenticated Key Exchange. ICISC (2018)
Satoshi Furukawa, Noboru Kunihiro, Katsuyuki Takashima
Multi-party Key Exchange Protocols from Supersingular Isogenies. ISITA (2018)
Pratish Datta, Tatsuaki Okamoto, Katsuyuki Takashima
Adaptively Simulation-Secure Attribute-Hiding Predicate Encryption. ASIACRYPT (2) (2018)
Pratish Datta, Tatsuaki Okamoto, Katsuyuki Takashima
Adaptively Simulation-Secure Attribute-Hiding Predicate Encryption. IACR Cryptol. ePrint Arch. 2018 (2018)
Atsushi Fujioka, Katsuyuki Takashima, Shintaro Terada, Kazuki Yoneyama
Supersingular Isogeny Diffie-Hellman Authenticated Key Exchange. IACR Cryptol. ePrint Arch. 2018 (2018)
Takeshi Koshiba, Katsuyuki Takashima
New Assumptions on Isogenous Pairing Groups with Applications to Attribute-Based Encryption. ICISC (2018)
Junichi Tomida, Katsuyuki Takashima
Unbounded Inner Product Functional Encryption from Bilinear Maps. ASIACRYPT (2) (2018)
Atsushi Fujioka, Katsuyuki Takashima, Kazuki Yoneyama
One-Round Authenticated Group Key Exchange from Isogenies. IACR Cryptol. ePrint Arch. 2018 (2018)
Katsuyuki Takashima
New Proof Techniques for DLIN-Based Adaptively Secure Attribute-Based Encryption. ACISP (1) (2017)
Hikari Tachibana, Katsuyuki Takashima, Tsuyoshi Takagi
Constructing an efficient hash function from $3$-isogenies. JSIAM Lett. 9 (2017)
Takeshi Koshiba, Katsuyuki Takashima
Pairing Cryptography Meets Isogeny: A New Framework of Isogenous Pairing Groups. IACR Cryptol. ePrint Arch. 2016 (2016)
Tatsuaki Okamoto, Katsuyuki Takashima
Adaptively Attribute-Hiding (Hierarchical) Inner Product Encryption. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2016)
Katsuyuki Takashima, Atsushi Takayasu
Tighter Security for Efficient Lattice Cryptography via the Rényi Divergence of Optimized Orders. ProvSec (2015)
Tatsuaki Okamoto, Katsuyuki Takashima
Achieving short ciphertexts or short secret-keys for adaptively secure general inner-product encryption. Des. Codes Cryptogr. 77 (2-3) (2015)
Katsuyuki Takashima
New Proof Techniques for DLIN-Based Adaptively Secure Attribute-Based Encryption and Their Application. IACR Cryptol. ePrint Arch. 2015 (2015)
Tatsuaki Okamoto, Katsuyuki Takashima
Dual Pairing Vector Spaces and Their Applications. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2015)
Katsuyuki Takashima, Atsushi Takayasu
Tighter Security for Efficient Lattice Cryptography via the Rényi Divergence of Optimized Orders. IACR Cryptol. ePrint Arch. 2015 (2015)
Katsuyuki Takashima
Expressive Attribute-Based Encryption with Constant-Size Ciphertexts from the Decisional Linear Assumption. IACR Cryptol. ePrint Arch. 2014 (2014)
Katsuyuki Takashima
Recent Topics on Practical Functional Encryption. CANDAR (2014)
Katsuyuki Takashima
Expressive Attribute-Based Encryption with Constant-Size Ciphertexts from the Decisional Linear Assumption. SCN (2014)
Yutaro Kiyomura, Noriyasu Iwamoto, Shun'ichi Yokoyama, Kenichiro Hayasaka, Yuntao Wang, Takanori Yasuda, Katsuyuki Takashima, Tsuyoshi Takagi
Heuristic counting of Kachisa-Schaefer-Scott curves. JSIAM Lett. 6 (2014)
Tatsuaki Okamoto, Katsuyuki Takashima
Efficient Attribute-Based Signatures for Non-Monotone Predicates in the Standard Model. IEEE Trans. Cloud Comput. 2 (4) (2014)
Tatsuaki Okamoto, Katsuyuki Takashima
Decentralized Attribute-Based Signatures. Public Key Cryptography (2013)
Reo Yoshida, Katsuyuki Takashima
Computing a Sequence of 2-Isogenies on Supersingular Elliptic Curves. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2013)
Yutaka Kawai, Katsuyuki Takashima
Predicate- and Attribute-Hiding Inner Product Encryption in a Public Key Setting. Pairing (2013)
Yutaka Kawai, Katsuyuki Takashima
Predicate- and Attribute-Hiding Inner Product Encryption in a Public Key Setting. IACR Cryptol. ePrint Arch. 2013 (2013)
Yutaka Kawai, Katsuyuki Takashima
Fully-Anonymous Functional Proxy-Re-Encryption. IACR Cryptol. ePrint Arch. 2013 (2013)
Tatsuaki Okamoto, Katsuyuki Takashima
Efficient (Hierarchical) Inner-Product Encryption Tightly Reduced from the Decisional Linear Assumption. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2013)
Mitsuhiro Hattori, Nori Matsuda, Takashi Ito, Yoichi Shibata, Katsuyuki Takashima, Takeshi Yoneda
Provably-Secure Cancelable Biometrics Using 2-DNF Evaluation. J. Inf. Process. 20 (2) (2012)
Tatsuaki Okamoto, Katsuyuki Takashima
Fully Secure Unbounded Inner-Product and Attribute-Based Encryption. IACR Cryptol. ePrint Arch. 2012 (2012)
Tatsuaki Okamoto, Katsuyuki Takashima
Adaptively Attribute-Hiding (Hierarchical) Inner Product Encryption. EUROCRYPT (2012)
Tatsuaki Okamoto, Katsuyuki Takashima
Fully Secure Unbounded Inner-Product and Attribute-Based Encryption. ASIACRYPT (2012)
Mitsuhiro Hattori, Nori Matsuda, Takashi Ito, Yoichi Shibata, Katsuyuki Takashima, Takeshi Yoneda
Provably-Secure Cancelable Biometrics Using 2-DNF Evaluation. Inf. Media Technol. 7 (2) (2012)
Tatsuaki Okamoto, Katsuyuki Takashima
Some Key Techniques on Pairing Vector Spaces. AFRICACRYPT (2011)
Tatsuaki Okamoto, Katsuyuki Takashima
Efficient Attribute-Based Signatures for Non-monotone Predicates in the Standard Model. Public Key Cryptography (2011)
Tatsuaki Okamoto, Katsuyuki Takashima
Adaptively Attribute-Hiding (Hierarchical) Inner Product Encryption. IACR Cryptol. ePrint Arch. 2011 (2011)
Tatsuaki Okamoto, Katsuyuki Takashima
Achieving Short Ciphertexts or Short Secret-Keys for Adaptively Secure General Inner-Product Encryption. CANS (2011)
Tatsuaki Okamoto, Katsuyuki Takashima
Decentralized Attribute-Based Signatures. IACR Cryptol. ePrint Arch. 2011 (2011)
Tatsuaki Okamoto, Katsuyuki Takashima
Efficient Attribute-Based Signatures for Non-Monotone Predicates in the Standard Model. IACR Cryptol. ePrint Arch. 2011 (2011)
Tatsuaki Okamoto, Katsuyuki Takashima
Achieving Short Ciphertexts or Short Secret-Keys for Adaptively Secure General Inner-Product Encryption. IACR Cryptol. ePrint Arch. 2011 (2011)
Tatsuaki Okamoto, Katsuyuki Takashima
Fully Secure Functional Encryption with General Relations from the Decisional Linear Assumption. CRYPTO (2010)
Tatsuaki Okamoto, Katsuyuki Takashima
Fully Secure Functional Encryption with General Relations from the Decisional Linear Assumption. IACR Cryptol. ePrint Arch. 2010 (2010)
Allison B. Lewko, Tatsuaki Okamoto, Amit Sahai, Katsuyuki Takashima, Brent Waters
Fully Secure Functional Encryption: Attribute-Based Encryption and (Hierarchical) Inner Product Encryption. IACR Cryptol. ePrint Arch. 2010 (2010)
Allison B. Lewko, Tatsuaki Okamoto, Amit Sahai, Katsuyuki Takashima, Brent Waters
Fully Secure Functional Encryption: Attribute-Based Encryption and (Hierarchical) Inner Product Encryption. EUROCRYPT (2010)
Tatsuaki Okamoto, Katsuyuki Takashima
Hierarchical Predicate Encryption for Inner-Products. ASIACRYPT (2009)
Katsuyuki Takashima
Efficiently Computable Distortion Maps for Supersingular Curves. ANTS (2008)
Tatsuaki Okamoto, Katsuyuki Takashima
Homomorphic Encryption and Signatures from Vector Decomposition. Pairing (2008)
Reo Yoshida, Katsuyuki Takashima
Simple Algorithms for Computing a Sequence of 2-Isogenies. ICISC (2008)
Katsuyuki Takashima
Scaling Security of Elliptic Curves with Fast Pairing Using Efficient Endomorphisms. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2007)
Katsuyuki Takashima
Practical Application of Lattice Basis Reduction Algorithm to Side-Channel Analysis on (EC)DSA. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (5) (2006)
Katsuyuki Takashima
A New Type of Fast Endomorphisms on Jacobians of Hyperelliptic Curves and Their Cryptographic Application. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2006)
Katsuyuki Takashima
Practical Modifications of Leadbitter et al.'s Repeated-Bits Side-Channel Analysis on (EC)DSA. WISA (2005)
Katsuyuki Takashima
New Families of Hyperelliptic Curves with Efficient Gallant-Lambert-Vanstone Method. ICISC (2004)