Katsuyuki Takashima

Waseda University — Japan

Computer Science · Physical Sciences

19h-index3.6kcitations82works0.02yr avg
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Research Topics

Cryptography and Data Security(52), Complexity and Algorithms in Graphs(35), Coding theory and cryptography(24), Cryptography and Residue Arithmetic(23), Privacy-Preserving Technologies in Data(22)

Publications82 total

On Lattice Isomorphism Problems for Lattices from LCD Codes over Finite Rings
IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences·2025Open Access
Compact FE for unbounded attribute-weighted sums for logspace from SXDH
Designs Codes and Cryptography·2024Open Access
Implementation Report of the Kohel–Lauter–Petit–Tignol Algorithm for the Constructive Deuring Correspondence
Advances in intelligent systems and computing·2022
Compact FE for Unbounded Attribute-Weighted Sums for Logspace from SXDH
Lecture notes in computer science·2022· 5 cited
Decomposed Richelot isogenies of Jacobian varieties of hyperelliptic curves and generalized Howe curves
arXiv (Cornell University)·2021Open Access
An Efficient Authenticated Key Exchange from Random Self-reducibility on CSIDH
Lecture notes in computer science·2021· 19 cited
Improved supersingularity testing of elliptic curves
JSIAM Letters·2021· 3 citedOpen Access
Efficient Attribute-Based Signatures for Unbounded Arithmetic Branching Programs
IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences·2020· 5 citedOpen Access
Counting Richelot isogenies between superspecial abelian surfaces
The Open Book Series·2020· 6 citedOpen Access
Post-Quantum Constant-Round Group Key Exchange from Static Assumptions
Mathematics for industry·2020· 8 citedOpen Access
Hybrid Meet-in-the-Middle Attacks for the Isogeny Path-Finding Problem
2020
Adaptively Simulation-Secure Attribute-Hiding Predicate Encryption
IEICE Transactions on Information and Systems·2020Open Access
Unbounded inner product functional encryption from bilinear maps
Japan Journal of Industrial and Applied Mathematics·2020
Counting superspecial Richelot isogenies and its cryptographic application.
arXiv (Cornell University)·2020· 1 citedOpen Access
Counting Richelot isogenies between superspecial abelian surfaces
arXiv (Cornell University)·2020· 2 citedOpen Access
An Efficient Authenticated Key Exchange from Random Self-Reducibility on CSIDH.
IACR Cryptology ePrint Archive·2020
Group Key Exchange from CSIDH and Its Application to Trusted Setup in Supersingular Isogeny Cryptosystems
Lecture notes in computer science·2020· 6 cited
Expressive Attribute-Based Encryption with Constant-Size Ciphertexts from the Decisional Linear Assumption
IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences·2019Open Access
Decentralized Attribute-Based Encryption and Signatures
IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences·2019· 21 citedOpen Access
New Assumptions on Isogenous Pairing Groups with Applications to Attribute-Based Encryption
Lecture notes in computer science·2019· 4 cited
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Frequent Co-authors

Tatsuaki Okamoto(21), Pratish Datta(4), Tsuyoshi Takagi(3), Reo Yoshida(3), Atsushi Fujioka(2), Kazuki Yoneyama(2), Yutaka Kawai(2), Toshiyuki Katsura(2), Takeshi Koshiba(2), Allison Lewko(1), Amit Sahai(1), Brent Waters(1), Satoshi Furukawa(1), Noboru Kunihiro(1), Junichi Tomida(1), Shintaro Terada(1), Tomoki Kawashima(1), Yusuke Aikawa(1), Atsushi Takayasu(1), Mitsuhiro Hattori(1)