Koichiro Akiyama

According to our database, Koichiro Akiyama authored at least 6 papers between 2009 and 2020.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2020

Cryptanalysis of GiophantusTM Schemes against Hybrid Attack.

Yuntao Wang, Yasuhiko Ikematsu, Koichiro Akiyama, Tsuyoshi Takagi

Proceedings of the 7th on ASIA Public-Key Cryptography Workshop, 2020

2018

An Improvement on the Linear Algebraic Attack for the Indeterminate Equation Encryption Scheme.

Yasuhiko Ikematsu, Koichiro Akiyama, Tsuyoshi Takagi

Proceedings of the International Symposium on Information Theory and Its Applications, 2018

2017

A Public-key Encryption Scheme Based on Non-linear Indeterminate Equations (Giophantus).

Koichiro Akiyama, Yasuhiro Goto, Shinya Okumura, Tsuyoshi Takagi, Koji Nuida, Goichiro Hanaoka, Hideo Shimizu, Yasuhiko Ikematsu

IACR Cryptol. ePrint Arch., 2017

A Public-Key Encryption Scheme Based on Non-linear Indeterminate Equations.

Koichiro Akiyama, Yasuhiro Goto, Shinya Okumura, Tsuyoshi Takagi, Koji Nuida, Goichiro Hanaoka

Proceedings of the Selected Areas in Cryptography - SAC 2017, 2017

2016

An Estimate of the Complexity of the Section Finding Problem on Algebraic Surfaces.

Shinya Okumura, Koichiro Akiyama, Tsuyoshi Takagi

Proceedings of the Fourth International Symposium on Computing and Networking, 2016

2009

An Algebraic Surface Cryptosystem.

Koichiro Akiyama, Yasuhiro Goto, Hideyuki Miyake

Proceedings of the Public Key Cryptography, 2009