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FCReducer: Locating Symmetric Cryptographic Functions on the Memory

Ryoya FURUKAWA, Ryoichi ISAWA, Masakatu MORII, Daisuke INOUE, Koji NAKAO
2018 IEICE transactions on information and systems  
. † † † The authors are with National Institute of Information and Communications Technology, Koganei-shi, 184-8795 Japan. a) E-mail: isawa@nict.go.jp DOI: 10.1587/transinf.2017EDP7143 Fig. 1 1 A customized  ... 
doi:10.1587/transinf.2017edp7143 fatcat:6tz5sk3tgfbxxaxetter4werte

Threat Alert Prioritization Using Isolation Forest and Stacked Auto Encoder with Day-Forward-Chaining Analysis

Muhamad Erza Aminanto, Tao Ban, Ryoichi Isawa, Takeshi Takahashi, Daisuke Inoue
2020 IEEE Access  
RYOICHI ISAWA received his B.E. and M.E. degrees from the University of Tokushima, Japan, in 2004 and 2006, respectively. He received his Ph.D. degree from Kobe University, Japan, in 2012.  ... 
doi:10.1109/access.2020.3041837 fatcat:j2gge7abtfb6pagdgfvddhx25m

A Cross-Platform Study on Emerging Malicious Programs Targeting IoT Devices

Tao BAN, Ryoichi ISAWA, Shin-Ying HUANG, Katsunari YOSHIOKA, Daisuke INOUE
2019 IEICE transactions on information and systems  
Along with the proliferation of IoT (Internet of Things) devices, cyberattacks towards them are on the rise. In this paper, aiming at efficient precaution and mitigation of emerging IoT cyberthreats, we present a multimodal study on applying machine learning methods to characterize malicious programs which target multiple IoT platforms. Experiments show that opcode sequences obtained from static analysis and API sequences obtained by dynamic analysis provide sufficient discriminant information
more » ... uch that IoT malware can be classified with near optimal accuracy. Automated and accelerated identification and mitigation of new IoT cyberthreats can be enabled based on the findings reported in this study.
doi:10.1587/transinf.2018ofl0007 fatcat:r5gvvq7eizhxzh3fyv7lw6e4xy

An Original Entry Point Detection Method with Candidate-Sorting for More Effective Generic Unpacking

Ryoichi ISAWA, Daisuke INOUE, Koji NAKAO
2015 IEICE transactions on information and systems  
. † The authors are with the National Institute of Information and Communications Technology (NICT), Koganei-shi, 184-8795 Japan. a) E-mail: isawa@nict.go.jp DOI: 10.1587/transinf.2014EDP7268 Fig. 2  ...  Ryoichi Isawa received his B.E. and M.E. degrees from the University of Tokushima, Japan, in 2004 and 2006, respectively. He received his Ph.D. degree from Kobe University, Japan, in 2012.  ... 
doi:10.1587/transinf.2014edp7268 fatcat:tfymdsrqcvh3jkk3p5kxnjc6su

An Efficient Approach to Detect and Classify IoT Malware Based On Byte Sequences from Executable Files

Tzu-Ling Wan, Tao Ban, Shin-Ming Cheng, Yen-Ting Lee, Bo Sun, Ryoichi Isawa, Takeshi Takahashi, Daisuke Inoue
2020 IEEE Open Journal of the Computer Society  
Isawa, T. Takahashi, and D. Inoue are with National Institute of Information and Communications Technology, Tokyo, Japan. Email: {bantao, isawa, takeshi takahashi, dai}@nict.go.jp B.  ... 
doi:10.1109/ojcs.2020.3033974 fatcat:5b55cl3qcvbrdp2hiayqbqkk3y

DOUBLE PYLORUS COMPLICATED WITH SYSTEMIC LUPUS ERYTHEMATOSUS : REPORT OF A CASE
全身性エリテマトーデスに合併したDouble Pylorusの1例

Tatsuo MUNEHISA, Ryosaku HARADA, Hiroshi TEZUKA, Keisuke NAKATA, Akihiko KURATA, Toyokichi MURO, Kenji KOHNO, Ryuji FURUKAWA, Yukio KUSUMOTO, Shigenobu NAGATAKI, Nobuko ISHII, Toshihiko KOJI (+3 others)
1982 Gastroenterological Endoscopy  
Kunihide ISAWA AND Ryoichi TSUCHIYA 10) Jarmoszuk N., Danoff, D. M. and Chappelka A. R.: Pyloric septum, a rare complication of peptic ulcer disease. Am. J.  ... 
doi:10.11280/gee1973b.24.1960 fatcat:topile76fnbkndmg6vxap6hk6y

モバイルコードを用いたポート動的変更機能を有するリモートアクセスVPNの評価(ライフログ活用技術,オフィス情報システム,マルチメディアシステム,マルチメディア通信,IP放送/映像伝送,一般)
Evaluation of Remote Access VPN with Dynamic Port Randomization Function by Mobile Codes

Tatsuya Takehisa, Masanori Hirotomo, Ryoichi Isawa, Masakatu Morii, Koji Nakao
2009 ITE Technical Report  
Recently , the vaTiety of attacks against servers in the Intemet is increased . The survivability of servers se τv { ng the remote access VPN is influenced by several cyber attacks 。 As a countermeasure against the attacks , we have proposed a method for the remote access VPN With dynamic port randomization function by mobile codes . In this paper, we evaluate the perform ... mce of the dyna皿 ic po 貫 randomization 撫 ction embedding the remote access VPN , and show efficiency of our method .
doi:10.11485/itetr.33.37.0_119 fatcat:c55ykyzwlfhi7luopok3sntbs4

AsiaJCIS 2020 TOC

2020 2020 15th Asia Joint Conference on Information Security (AsiaJCIS)  
Isawa (National Institute of Information and Communications Technology), Takeshi Takahashi (National Institute of Information and Communications Technology), and Daisuke Inoue (National Institute of Information  ...  National Institute of Information and Communications Technology), Yen-Ting Lee (National Taiwan University of Science and Technology), Shin-Ming Cheng (National Taiwan University of Science and Technology), Ryoichi  ... 
doi:10.1109/asiajcis50894.2020.00004 fatcat:j5vl4jwnrbc3znpnapkzwcmrwe

Index

2018 Nippon Saikingaku Zasshi  
〃 WS5-8 (P-332) Inoue, Sachi 井上 紗智 WS8-2 Inoue, Satoshi 井上 智 P-054 Inouye, Masayori 井上 正順 WS12-2 Inukai, Tatsuya 犬飼 達也 WS2-3 〃 P-377 Isaka, Masanori 井坂 雅徳 P-137 〃 P-358 Isawa  ...  Sato, Emi 佐藤 絵美 P-298 Sato, Kanako 佐藤 加奈子 P-365 Sato, Keiko 佐藤 啓子 P-161 〃 P-306 Sato, Kozue 佐藤 梢 P-014 Sato, Michio 佐藤 道大 P-027 Sato, Mitsuhiko 佐藤 光彦 P-017 〃 P-198 Sato, Ryoichi  ... 
doi:10.3412/jsb.73.156 pmid:29479021 fatcat:lpjvphrpovbrjlw6ni2kxtu344

Japanische Studenten an der Berliner Universität 1920 – 1945 [article]

Rudolf Hartmann, Humboldt-Universität Zu Berlin, Humboldt-Universität Zu Berlin, Klaus Kracht
2017
SUGIYAMA Ryoichi DIA, 02.04.1935 / Ingenieur / Japanisches Marinebüro, Bayerischer Platz 13/14.  ...  IDETA Setsuo IKEDA Saburô IMANISHI Masao ISAWA Masanobu GH, ISHIKAWA Tokuichi (Pseudonym: Sagara Shige'ichi 1905--1980 ) DIA, 09.11.1928.  ... 
doi:10.18452/5458 fatcat:3jxp5hpc5vbrpmmtni7k5avteq

Poster

2020 Nippon Saikingaku Zasshi  
assembly of a symbiont Rickettsia from sandfly, Sergentomyia squamirostris ○Kentaro Itokawa 1 , Akihiro Kuroki 2 , Chizu Sanjoba 2 , Tsuyoshi Sekizuka 1 , Rina Tanaka 1 , Daisuke Kobayashi 3 , Haruhiko Isawa  ...  ,川村 久美子 4 , 荒川 宜親 5 ,長野 由紀子 5 ,長野 則之 1,2 ( 1 信大院・医理工・医療生命科学, 2 信大院・医・病因病態検査学, 3 関東化学株式会社・試薬技術部, 4 名大 院・医・病態解析学, 5 名大院・医・細菌学) ○Wataru Hayashi 1 , Hayato Tanaka 2 , Masaki Iimura 2 , Eiji Soga 2 , Ryoichi  ... 
doi:10.3412/jsb.75.60 pmid:31969516 fatcat:jd7bagpexrcyvleh7va5yrohxu