Committee 
Date Time 
Place 
Paper Title / Authors 
Abstract 
Paper # 
RECONF, VLD, CPSY, IPSJARC, IPSJSLDM [detail] 
20220125 09:30 
Online 
Online 
GPU acceleration of algorithm for minimal distance approximate calculation between two objects Masumi Fukuta, Takakazu Kurokawa, Takashi Matsubara, Keisuke Iwai (NDA) VLD202162 CPSY202131 RECONF202170 
(To be available after the conference date) [more] 
VLD202162 CPSY202131 RECONF202170 pp.7377 
EA, ASJH, EMM 
20201120 09:00 
Online 
Online 
[Poster Presentation]
Improving waveletsynchrosqueezing transform with calculating angular frequency using time shift Akira Kakutani, Takashi Matsubara, Keisuke Iwai, Takakazu Kurokawa (NDA) EA202021 EMM202036 
Timefrequency analysis is mainly used for analyzing acoustic signals. Shorttime Fourier transform by Allen, et al. and... [more] 
EA202021 EMM202036 pp.15 
IPSJSLDM, RECONF, VLD, CPSY, IPSJARC [detail] 
20200124 11:25 
Kanagawa 
Raiosha, Hiyoshi Campus, Keio University 
Implementation of high speed rainbow table generation using Keccak hashing algorithm on CUDA Nguyen Dat Thuong, Keisuke Iwai, Takashi Matsubara, Takakazu Kurokawa (NDA) VLD201984 CPSY201982 RECONF201974 
This paper proposes the implementation of high speed rainbow table generation using Keccak hashing algorithm with the in... [more] 
VLD201984 CPSY201982 RECONF201974 pp.181186 
HWS (2nd) 
20191206 16:00 
Tokyo 
Asakusabashi Hulic Conference 
[Poster Presentation]
Correlation power analysis and its countermeasure for lightweight ciphers LED and SKINNY implemented in SAKURAX FPGA Hayato Tanaka, Keisuke Iwai, Takashi Matsubara, Takakazu Kurokawa (NDA) 
[more] 

EA, ASJH, ASJAA 
20180724 13:00 
Hokkaido 
Hokkaido Univ. 
[Poster Presentation]
Denoising Method for Underwater Acoustic Signals by Using Hough Transform Yoshihiro Taira, Takashi Matsubara, Keisuke Iwai, Takakazu Kurokawa (NDA) EA201811 
Underwater acoustic signals are used in various fields such as marine environmental measurement, exploration of sea bott... [more] 
EA201811 pp.5964 
AP 
20170824 10:00 
Hokkaido 
National Institute of Technology, Hakodate College 
DOA Estimation for Coprime Arrays Without Knowledge of Source Number AnhTuan Nguyen, Takashi Matsubara, Takakazu Kurokawa (NDA) AP201769 
Pal et al. use a coprime array to extend it to a larger virtual ULA, and after spatial smoothing technique is implemente... [more] 
AP201769 pp.712 
AP 
20161208 13:25 
Tokyo 
KikaiShinkoKaikan Bldg. 
High Performance DOA Estimation Method for Copime Arrays and Nested Arrays AnhTuan Nguyen, Takashi Matsubara, Takakazu Kurokawa (NDA) AP2016126 
In this paper, we consider a coprime array or nested array. Pal et al. have proposed a method to extend these arrays to ... [more] 
AP2016126 pp.1722 
ISEC 
20160902 14:50 
Tokyo 
KikaiShinkoKaikan Bldg. 
Implementation of security evaluation function on a Development Environment of Cryptography using GUI Toshihiro Nakamura, Keisuke Iwai, Takashi Matsubara, Takakazu Kurokawa (NDA) ISEC201646 
Security evaluation on cryptography and cryptography development
are two sides of the same coin.
Security evaluation... [more] 
ISEC201646 pp.4956 
AP, SAT, SANE (Joint) 
20160720 14:55 
Hokkaido 
Otaru port marina 
High Performance DOA Estimation Method with Coprime Array using Toeplitz Matrix AnhTuan Nguyen, Takashi Matsubara, Takakazu Kurokawa (NDA) AP201639 
MUSIC and ESPRIT are high accuracy direction of arrival(DOA) estimation methods using uniform linear array antenna(ULA).... [more] 
AP201639 pp.1318 
AP, SAT, SANE (Joint) 
20160720 16:20 
Hokkaido 
Otaru port marina 
Improvement of RVMUSIC using Unitary Transformation and Orthogonal Complement Koji Sonoyama, Takashi Matsubara, Takakazu Kurokawa (NDA) AP201642 
Directionofarrival (DOA) estimation with an array antenna includes MUSIC and ESPRIT. MUSIC needs big computational com... [more] 
AP201642 pp.3136 
ISEC 
20160519 10:25 
Tokyo 
KikaiShinkoKaikan Bldg. 
IDS using Discrete Fourier Transform with window functions Yusuke Tsuge, Keisuke Iwai, Hidema Tanaka, Takakazu Kurokawa (NDA) ISEC20162 
An Intrusion Detection System (IDS) is countermeasure against network attack. There are mainly two types of detections; ... [more] 
ISEC20162 pp.511 
IT, ISEC, WBS 
20160310 13:40 
Tokyo 
The University of ElectroCommunications 
CollisionFree Rainbow Table Structure Yuki Tabata, Keisuke Iwai, Hidema Tanaka, Takakazu Kurokawa (NDA) IT2015114 ISEC201573 WBS201597 
Rainbow table is a method to crack the password in high speed from hash values. Collision of password candidates occurs,... [more] 
IT2015114 ISEC201573 WBS201597 pp.8188 
ISEC 
20151218 13:55 
Tokyo 
KikaiShinkoKaikan Bldg. 
Evaluation of authenticated encryptions implemented on FPGA with highlevel synthesis Makoto Kotegawa, Keisuke Iwai, Hidema Tanaka, Takakazu Kurokawa (NDA) ISEC201555 
Competition for Authenticated Encryption Security, Applicability, and Robustness (CAESAR) which is a development and eva... [more] 
ISEC201555 pp.916 
AP 
20151210 09:15 
Tokyo 
KikaiShinkoKaikan Bldg. 
DOA Estimating Method via Toeplitz Matrices without Information of Source Number AnhTuan Nguyen, Koji Sonoyama, Takashi Matsubara, Takakazu Kurokawa (NDA) AP2015154 
MUSIC and ESPRIT are high accuracy methods for estimating the direction of arrival of signals using array antenna. These... [more] 
AP2015154 pp.16 
ISEC 
20150904 10:55 
Tokyo 
KikaiShinkoKaikan Bldg. 
Improvement of RainbowCrack Reduction Function Yuki Tabata, Keisuke Iwai, Hidema Tanaka, Takakazu Kurokawa (NDA) ISEC201526 
Rainbow table is a method to crack the password in high speed from hash values. Rainbow table can crack passwords only i... [more] 
ISEC201526 pp.914 
ISEC 
20150904 11:20 
Tokyo 
KikaiShinkoKaikan Bldg. 
High speed implementation of Hash function on GPU Nguyen Dat Thuong, Keisuke Iwai, Hidema Tanaka, Takakazu Kurokawa (NDA) ISEC201527 
In order to protect the personal information and high confidential information, encryption technology and hash function ... [more] 
ISEC201527 pp.1519 
IA, ICSS 
20150611 14:35 
Fukuoka 
Kyushu Institute of Technology Univ. 
An Efficient Rainbow Table Compression Yuki Tabata, Keisuke Iwai, Hidema Tanaka, Takakazu Kurokawa (NDA) IA20153 ICSS20153 
Rainbow table is a method to crack the password in high speed from hash values. Rainbow table can crack passwords only i... [more] 
IA20153 ICSS20153 pp.914 
AP, RCS (Joint) 
20141112 12:45 
Yamagata 
Yamagata University, Yonezawa Campus 
A Proposal of High Accurate Method for Estimating the Number of Signals Based on Support Vector Machine Anh Tuan Nguyen, Takashi Matsubara, Takakazu Kurokawa (NDA) AP2014133 
In the case of multiple correlative signals inping on an array antenna in low SN ratio, the MENSE is effective method fo... [more] 
AP2014133 pp.2934 
ISEC 
20140905 15:35 
Tokyo 
KikaiShinkoKaikan Bldg. 
GPU implementation of Ciphers using Schematic to Program Translator(SPT) Masashi Watanabe, Keisuke Iwai, Hidema Tanaka, Takakazu Kurokawa (NDA) ISEC201452 
With the spread of heterogeneous computing, accelerators such as GPU are widely used. However, it is not easy to develop... [more] 
ISEC201452 pp.3542 
CPSY, DC (Joint) 
20140729 17:50 
Niigata 
Toki Messe, Niigata 
Development of Cipher implementation tool using GUI Masashi Watanabe, Keisuke Iwai, Hidema Tanaka, Takakazu Kurokawa (NDA) CPSY201431 
With the spread of heterogeneous computing, accelerators such as GPU are widely used. However, it
is not easy to write ... [more] 
CPSY201431 pp.125129 