Implementation for two-dimensional FIR filters using the number theoretic transform. - Yoshitaka Morikawa; Hiroshi Hamada (ICASSP, 1983)

A fast image filtering processor-FIFP. - Nobumoto Yamane; Yoshitaka Morikawa; Hiroshi Hamada (ICASSP, 1986)

A fast image filtering processor using the Fermat number transform. - Nobumoto Yamane; Yoshitaka Morikawa; Hiroshi Hamada (Syst. Comput. Jpn., 1987)

A Fast Square Root Computation Using the Frobenius Mapping. - Feng Wang; Yasuyuki Nogami; Yoshitaka Morikawa (ICICS, 2003)

Finite Extension Field with Modulus of All-One Polynomial and Representation of Its Elements for Fast Arithmetic Operations. - Yasuyuki Nogami; Akinori Saito; Yoshitaka Morikawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2003)

A Method for Distinguishing the Two Candidate Elliptic Curves in CM Method. - Yasuyuki Nogami; Yoshitaka Morikawa (ICISC, 2004)

Fast Implementation of Extension Fields with TypeII ONB and Cyclic Vector Multiplication Algorithm. - Yasuyuki Nogami; Shigeru Shinonaga; Yoshitaka Morikawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2005)

An Efficient Square Root Computation in Finite Fields GF(p2d). - Feng Wang; Yasuyuki Nogami; Yoshitaka Morikawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2005)

A High-Speed Square Root Algorithm in Extension Fields. - Hidehiro Katou; Feng Wang; Yasuyuki Nogami; Yoshitaka Morikawa (ICISC, 2006)

Skew Frobenius Map and Efficient Scalar Multiplication for Pairing-Based Cryptography. - Yumi Sakemi; Yasuyuki Nogami; Katsuyuki Okeya; Hidehiro Katou; Yoshitaka Morikawa (CANS, 2008)

Integer Variable chi-Based Ate Pairing. - Yasuyuki Nogami; Masataka Akane; Yumi Sakemi; Hidehiro Katou; Yoshitaka Morikawa (Pairing, 2008)

A Method for Constructing a Pseudo Self-Dual Normal Basis. - Hiroaki Nasu; Yasuyuki Nogami; Satoshi Uehara; Ryo Namba; Yoshitaka Morikawa (Cybern. Syst., 2008)

A method for constructing a self-dual normal basis in odd characteristic extension fields. - Yasuyuki Nogami; Hiroaki Nasu; Yoshitaka Morikawa; Satoshi Uehara (Finite Fields Their Appl., 2008)

Minimum Mean Absolute Error Predictors for Lossless Image Coding. - Yoshihiko Hashidume; Yoshitaka Morikawa; Shuichi Maki (IEICE Trans. Inf. Syst., 2008)

A Necessary Condition for Gauss Period Normal Bases to Be the Same Normal Basis. - Yasuyuki Nogami; Ryo Namba; Yoshitaka Morikawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2008)

Accelerating Twisted Ate Pairing with Frobenius Map, Small Scalar Multiplication, and Multi-pairing. - Yumi Sakemi; Shoichi Takeuchi; Yasuyuki Nogami; Yoshitaka Morikawa (ICISC, 2009)

Cross twisted Xate pairing with Barreto-Naehrig curve for multi-pairing technique. - Yumi Sakemi; Yoshitaka Morikawa; Yasuyuki Nogami; Hidehiro Kato (ISIT, 2009)

Fast Ate Pairing Computation of Embedding Degree 12 Using Subfield-Twisted Elliptic Curve. - Masataka Akane; Yasuyuki Nogami; Yoshitaka Morikawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009)

A Multiplication Algorithm in Fpm Such That p>m with a Special Class of Gauss Period Normal Bases. - Hidehiro Katou; Yasuyuki Nogami; Tomoki Yoshida; Yoshitaka Morikawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009)

Finding a Basis Conversion Matrix via Prime Gauss Period Normal Basis. - Yasuyuki Nogami; Ryo Namba; Yoshitaka Morikawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009)

Integer Variable chi-Based Cross Twisted Ate Pairing and Its Optimization for Barreto-Naehrig Curve. - Yasuyuki Nogami; Yumi Sakemi; Hidehiro Kato; Masataka Akane; Yoshitaka Morikawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009)

Scalar Multiplication Using Frobenius Expansion over Twisted Elliptic Curve for Ate Pairing Based Cryptography. - Yasuyuki Nogami; Yumi Sakemi; Takumi Okimoto; Kenta Nekado; Masataka Akane; Yoshitaka Morikawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009)

Image Restoration Using a Universal GMM Learning and Adaptive Wiener Filter. - Nobumoto Yamane; Motohiro Tabuchi; Yoshitaka Morikawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009)

Mixed Bases for Efficient Inversion in mathbb F((22)2) and Conversion Matrices of SubBytes of AES. - Yasuyuki Nogami; Kenta Nekado; Tetsumi Toyota; Naoto Hongo; Yoshitaka Morikawa (CHES, 2010)

Efficient Squaring Algorithm in 2-nd Tower Field Available for Various Pairing-Based Cryptographies. - Kenta Nekado; Tatsuya Yuasa; Yasuyuki Nogami; Yoshitaka Morikawa (NBiS, 2010)

Accelerating Cross Twisted Ate Pairing with Ordinary Pairing Friendly Curve of Composite Order That Has Two Large Prime Factors. - Yumi Sakemi; Kazushi Nishii; Tetsuya Izuta; Yasuyuki Nogami; Yoshitaka Morikawa (NBiS, 2010)

Two Improvements of Twisted Ate Pairing with Barreto-Naehrig Curve by Dividing Miller's Algorithm. - Yumi Sakemi; Hidehiro Kato; Shoichi Takeuchi; Yasuyuki Nogami; Yoshitaka Morikawa (Adv. Inf. Sci. Serv. Sci., 2010)

Detailed Cost Estimation of CNTW Attack against EMV Signature Scheme. - Tetsuya Izu; Yoshitaka Morikawa; Yasuyuki Nogami; Yumi Sakemi; Masahiko Takenaka (Financial Cryptography Workshops, 2011)

Efficient Non Symmetric Pairing Groups on Ordinary Pairing Friendly Curve of Embedding Degree 1. - Tetsuya Izuta; Yasuyuki Nogami; Yoshitaka Morikawa (ICC, 2011)

Cyclic Vector Multiplication Algorithm and Existence Probability of Gauss Period Normal Basis. - Kenta Nekado; Yasuyuki Nogami; Hidehiro Kato; Yoshitaka Morikawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2011)

Mixed Bases for Efficient Inversion in F((22)2)2 and Conversion Matrices of SubBytes of AES. - Yasuyuki Nogami; Kenta Nekado; Tetsumi Toyota; Naoto Hongo; Yoshitaka Morikawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2011)

An Improvement of Twisted Ate Pairing Efficient for Multi-Pairing and Thread Computing. - Yumi Sakemi; Yasuyuki Nogami; Shoichi Takeuchi; Yoshitaka Morikawa (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2011)

Finding a Basis Conversion Matrix Using a Polynomial Basis Derived by a Small Multiplicative Cyclic Group. - Yasuyuki Nogami; Hidehiro Kato; Kenta Nekado; Satoshi Uehara; Yoshitaka Morikawa (IEEE Trans. Inf. Theory, 2012)