Koh-ichi Nagao

17 papers Journal 15Unranked 2
YearRankTypeTitle / Venue / Authors
2019 J jnl
Maximum Number of Steps Taken by Modular Exponentiation and Euclidean Algorithm.
Formaliz. Math.
Hiroyuki Okazaki, Koh-ichi Nagao, Yuichi Futa
2016 J jnl
Bit Coincidence Mining Algorithm II.
IACR Cryptol. ePrint Arch.
Koh-ichi Nagao
2015 J jnl
Bit Coincidence Mining Algorithm.
IACR Cryptol. ePrint Arch.
Koh-ichi Nagao
2015 J jnl
Complexity of ECDLP under the First Fall Degree Assumption.
IACR Cryptol. ePrint Arch.
Koh-ichi Nagao
2015 J jnl
Polynomial time reduction from 3SAT to solving low first fall degree multivariable cubic equations system.
IACR Cryptol. ePrint Arch.
Koh-ichi Nagao
2013 J jnl
Decomposition formula of the Jacobian group of plane curve.
IACR Cryptol. ePrint Arch.
Koh-ichi Nagao
2013 J jnl
Equations System coming from Weil descent and subexponential attack for algebraic curve cryptosystem.
IACR Cryptol. ePrint Arch.
Koh-ichi Nagao
2010 — conf
Decomposition Attack for the Jacobian of a Hyperelliptic Curve over an Extension Field.
ANTS
Koh-ichi Nagao
2010 J jnl
On the complexity of Decomposition Attack.
IACR Cryptol. ePrint Arch.
Koh-ichi Nagao
2007 J jnl
Decomposed Attack for the Jacobian of a Hyperelliptic Curve over an Extension Field.
IACR Cryptol. ePrint Arch.
Koh-ichi Nagao
2006 J jnl
A Weil Descent Attack against Elliptic Curve Cryptosystems over Quartic Extension Fields.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Seigo Arita, Kazuto Matsuo, Koh-ichi Nagao, Mahoro Shimura
2004 J jnl
A Weil Descent Attack against Elliptic Curve Cryptosystems over Quartic Extension Fields.
IACR Cryptol. ePrint Arch.
Seigo Arita, Kazuto Matsuo, Koh-ichi Nagao, Mahoro Shimura
2004 J jnl
Analysis of Baby-Step Giant-Step Algorithms for Non-uniform Distributions.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Koh-ichi Nagao, Shigenori Uchiyama, Naoki Kanayama, Kazuto Matsuo
2004 J jnl
Improvement of ThéLeriault Algorithm of Index Calculus for Jacobian of Hyperelliptic Curves of Small Genus.
IACR Cryptol. ePrint Arch.
Koh-ichi Nagao
2003 J jnl
Generating Secure Genus Two Hyperelliptic Curves Using Elkies' Point Counting Algorithm.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Naoki Kanayama, Koh-ichi Nagao, Shigenori Uchiyama
2000 — conf
Improving Group Law Algorithms for Jacobians of Hyperelliptic Curves.
ANTS
Koh-ichi Nagao
1997 J jnl
Construction of high-rank elliptic curves with a nontrivial torsion point.
Math. Comput.
Koh-ichi Nagao