IEICE Trans

Yoshitaka MORIKAWA

An Improvement of Twisted Ate Pairing Efficient for Multi-Pairing and Thread Computing Yumi SAKEMI Yasuyuki NOGAMI Shoichi TAKEUCHI Yoshitaka MORIKAWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2011/06/01 Vol. E94-A No. 6 pp. 1356-1367 Type of Manuscript: Special Section PAPER (Special Section on Discrete Mathematics and Its Applications) Category: Keyword: twisted Ate pairing, Miller's algorithm, Frobenius map, multi-pairing, thread computing,
	Summary \| Full Text:PDF(414.9KB)

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
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2011/06/01 Vol. E94-A No. 6 pp. 1318-1327 Type of Manuscript: Special Section PAPER (Special Section on Discrete Mathematics and Its Applications) Category: Keyword: AES, inversion, towering, conversion matrix, bases,
	Summary \| Full Text:PDF(771KB)

Cyclic Vector Multiplication Algorithm and Existence Probability of Gauss Period Normal Basis Kenta NEKADO Yasuyuki NOGAMI Hidehiro KATO Yoshitaka MORIKAWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2011/01/01 Vol. E94-A No. 1 pp. 172-179 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Mathematics Keyword: extension field, Gauss period normal basis, all one polynomial field, cyclic vector multiplication algorithm,
	Summary \| Full Text:PDF(788.7KB)

Image Restoration Using a Universal GMM Learning and Adaptive Wiener Filter Nobumoto YAMANE Motohiro TABUCHI Yoshitaka MORIKAWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2009/10/01 Vol. E92-A No. 10 pp. 2560-2571 Type of Manuscript: PAPER Category: Digital Signal Processing Keyword: Wiener filter, Gaussian mixture distribution model, optimal restoration filter, adaptive filter, statistical learning,
	Summary \| Full Text:PDF(1.2MB)

Integer Variable χ-Based Cross Twisted Ate Pairing and Its Optimization for Barreto-Naehrig Curve Yasuyuki NOGAMI Yumi SAKEMI Hidehiro KATO Masataka AKANE Yoshitaka MORIKAWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2009/08/01 Vol. E92-A No. 8 pp. 1859-1867 Type of Manuscript: Special Section PAPER (Special Section on Discrete Mathematics and Its Applications) Category: Theory Keyword: Ate pairing, Miller's algorithm,
	Summary \| Full Text:PDF(280.6KB)

Finding a Basis Conversion Matrix via Prime Gauss Period Normal Basis Yasuyuki NOGAMI Ryo NAMBA Yoshitaka MORIKAWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2009/06/01 Vol. E92-A No. 6 pp. 1500-1507 Type of Manuscript: PAPER Category: Information Theory Keyword: public key cryptography, extension field, Gauss period normal basis, basis conversion,
	Summary \| Full Text:PDF(299.9KB)

Fast Ate Pairing Computation of Embedding Degree 12 Using Subfield-Twisted Elliptic Curve Masataka AKANE Yasuyuki NOGAMI Yoshitaka MORIKAWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2009/02/01 Vol. E92-A No. 2 pp. 508-516 Type of Manuscript: PAPER Category: Cryptography and Information Security Keyword: Ate pairing, twist, subfield arithmetic operation, fast computing,
	Summary \| Full Text:PDF(298.6KB)

A Multiplication Algorithm in F_p^m Such That p>m with a Special Class of Gauss Period Normal Bases Hidehiro KATO Yasuyuki NOGAMI Tomoki YOSHIDA Yoshitaka MORIKAWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2009/01/01 Vol. E92-A No. 1 pp. 173-181 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Mathematics Keyword: extension field, public-key cryptography, fast implementation, Gauss period normal bases, optimal normal basis,
	Summary \| Full Text:PDF(217KB)

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
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2009/01/01 Vol. E92-A No. 1 pp. 182-189 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Mathematics Keyword: Ate pairing, BN curve, scalar multiplication, Frobenius mapping, twisted subfield computation,
	Summary \| Full Text:PDF(574.7KB)

Minimum Mean Absolute Error Predictors for Lossless Image Coding Yoshihiko HASHIDUME Yoshitaka MORIKAWA Shuichi MAKI
Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2008/06/01 Vol. E91-D No. 6 pp. 1783-1792 Type of Manuscript: PAPER Category: Image Processing and Video Processing Keyword: lossless image coding, minimum mean absolute error, l₁-problem, linear programming, mmae predictor, adaptive prediction, context modeling, error modeling,
	Summary \| Full Text:PDF(902.9KB)

A Necessary Condition for Gauss Period Normal Bases to Be the Same Normal Basis Yasuyuki NOGAMI Ryo NAMBA Yoshitaka MORIKAWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/04/01 Vol. E91-A No. 4 pp. 1229-1232 Type of Manuscript: LETTER Category: Cryptography and Information Security Keyword: Gauss period normal basis, trace,
	Summary \| Full Text:PDF(77.5KB)

An Efficient Square Root Computation in Finite Fields GF(p^{2^d}) Feng WANG Yasuyuki NOGAMI Yoshitaka MORIKAWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2005/10/01 Vol. E88-A No. 10 pp. 2792-2799 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Cryptography and Information Security Keyword: square root, finite fields, quadratic residue,
	Summary \| Full Text:PDF(211.2KB)

Fast Implementation of Extension Fields with TypeII ONB and Cyclic Vector Multiplication Algorithm Yasuyuki NOGAMI Shigeru SHINONAGA Yoshitaka MORIKAWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2005/05/01 Vol. E88-A No. 5 pp. 1200-1208 Type of Manuscript: Special Section PAPER (Special Section on Discrete Mathematics and Its Applications) Category: Keyword: extension field, public-key cryptosystem, fast implementation, optimal extension field, optimal normal basis,
	Summary \| Full Text:PDF(181.4KB)

Finite Extension Field with Modulus of All-One Polynomial and Representation of Its Elements for Fast Arithmetic Operations Yasuyuki NOGAMI Akinori SAITO Yoshitaka MORIKAWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2003/09/01 Vol. E86-A No. 9 pp. 2376-2387 Type of Manuscript: PAPER Category: Information Theory Keyword: optimal extension field, Frobenius mapping, normal basis, inversion,
	Summary \| Full Text:PDF(328.7KB)

Coding Gain in Non-Paraunitary Subband Coding Systems S. A. Asghar BEHESHTI SHIRAZI Yoshitaka MORIKAWA Hiroshi HAMADA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1996/02/25 Vol. E79-A No. 2 pp. 233-241 Type of Manuscript: PAPER Category: Information Theory and Coding Theory Keyword: subband coding, non-paraunitary, coding gain, bit allocation quantizer model,
	Summary \| Full Text:PDF(640.2KB)

Improvement of Performance in DCT and SSKF Image Coding Systems for Negatively-Correlated Signal Input by Signal Modulation S. A. Asghar BEHESHTI SHIRAZI Yoshitaka MORIKAWA Hiroshi HAMADA
Publication: IEICE TRANSACTIONS on Communications Publication Date: 1995/11/25 Vol. E78-B No. 11 pp. 1529-1542 Type of Manuscript: PAPER Category: Source Encoding Keyword: image coding, DCT, SSKF, negative correlation, signal modulation,
	Summary \| Full Text:PDF(1.2MB)