Koh-ichi Nagao - researchr alias

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Viewing Publication 1 - 17 from 17

2019

Maximum Number of Steps Taken by Modular Exponentiation and Euclidean AlgorithmHiroyuki Okazaki, Koh-ichi Nagao, Yuichi Futa. fm, 27(1):87-91, 2019. [doi]

2016

Bit Coincidence Mining Algorithm IIKoh-ichi Nagao. iacr, 2016:924, 2016. [doi]

2015

Complexity of ECDLP under the First Fall Degree AssumptionKoh-ichi Nagao. iacr, 2015:984, 2015. [doi]

Bit Coincidence Mining AlgorithmKoh-ichi Nagao. iacr, 2015:986, 2015. [doi]

Polynomial time reduction from 3SAT to solving low first fall degree multivariable cubic equations systemKoh-ichi Nagao. iacr, 2015:985, 2015. [doi]

2013

Equations System coming from Weil descent and subexponential attack for algebraic curve cryptosystemKoh-ichi Nagao. iacr, 2013:549, 2013. [doi]

Decomposition formula of the Jacobian group of plane curveKoh-ichi Nagao. iacr, 2013:548, 2013. [doi]

2010

Decomposition Attack for the Jacobian of a Hyperelliptic Curve over an Extension FieldKoh-ichi Nagao. ants 2010: 285-300 [doi]

On the complexity of Decomposition AttackKoh-ichi Nagao. iacr, 2010:511, 2010. [doi]

2007

Decomposed Attack for the Jacobian of a Hyperelliptic Curve over an Extension FieldKoh-ichi Nagao. iacr, 2007:112, 2007. [doi]

2006

A Weil Descent Attack against Elliptic Curve Cryptosystems over Quartic Extension FieldsSeigo Arita, Kazuto Matsuo, Koh-ichi Nagao, Mahoro Shimura. ieicet, 89-A(5):1246-1254, 2006. [doi]

2004

A Weil Descent Attack against Elliptic Curve Cryptosystems over Quartic Extension FieldsSeigo Arita, Kazuto Matsuo, Koh-ichi Nagao, Mahoro Shimura. iacr, 2004:240, 2004. [doi]

Improvement of ThLeriault Algorithm of Index Calculus for Jacobian of Hyperelliptic Curves of Small GenusKoh-ichi Nagao. iacr, 2004:161, 2004. [doi]

Analysis of Baby-Step Giant-Step Algorithms for Non-uniform DistributionsKoh-ichi Nagao, Shigenori Uchiyama, Naoki Kanayama, Kazuto Matsuo. ieicet, 87-A(1):10-17, 2004. [doi]

2003

Generating Secure Genus Two Hyperelliptic Curves Using Elkies' Point Counting AlgorithmNaoki Kanayama, Koh-ichi Nagao, Shigenori Uchiyama. ieiceta, 86-A(4):919-927, 2003. [doi]

2000

Improving Group Law Algorithms for Jacobians of Hyperelliptic CurvesKoh-ichi Nagao. antsw 2000: 439-448

1997

Construction of high-rank elliptic curves with a nontrivial torsion pointKoh-ichi Nagao. moc, 66(217):411-415, 1997.

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