Katsumi TAKAHASHI

Secret Sharing with Share-Conversion: Achieving Small Share-Size and Extendibility to Multiparty Computation
Ryo KIKUCHI Koji CHIDA Dai IKARASHI Wakaha OGATA Koki HAMADA Katsumi TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/01/01
Vol. E98-A  No. 1  pp. 213-222
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Foundation
Keyword: 
secret sharing scheme, multiparty computation, code-efficiency, 
 Summary | Full Text:PDF(1.1MB)
Time-Memory Trade-off Cryptanalysis for Limited Key on FPGA-Based Parallel Machine RASH
Katsumi TAKAHASHI Hiroai ASAMI Katsuto NAKAJIMA Masahiro IIDA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2003/05/01
Vol. E86-D  No. 5  pp. 781-788
Type of Manuscript:  Special Section PAPER (Special Issue on Reconfigurable Computing)
Category: 
Keyword: 
RASH, FPGA, reconfigurable computing, time-memory trade-off cryptanalysis, 
 Summary | Full Text:PDF(596.6KB)
Design and Implementation of Parallel and Distributed Wargame Simulation System and Its Evaluation
Atsuo OZAKI Masakazu FURUICHI Katsumi TAKAHASHI Hitoshi MATSUKAWA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2001/10/01
Vol. E84-D  No. 10  pp. 1376-1384
Type of Manuscript:  Special Section PAPER (IEICE/IEEE Joint Special Issue on Autonomous Decentralized Systems and Systems' Assurance)
Category: Issues
Keyword: 
parallel and distributed simulation, HLA, wargame, model design, interactive simulation, 
 Summary | Full Text:PDF(1.5MB)