Kenya Nishiki
Hitachi
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Featured researches published by Kenya Nishiki.
symposium on applications and the internet | 2005
Kenya Nishiki; Erika Tanaka
A key challenge in a ubiquitous network society is the design of effective authentication and access control schemes that adequately meet the unique security issues posed by the context-aware service paradigm. Despite recent advances in Web services security approaches, issues remain that impede the development of context-aware authentication and access control framework for the ubiquitous computing environment. In this paper, we propose a distributed system based on authentication and access control agents characterized by autonomic policy decision, network federation and dynamic access control for context-aware services. We will describe the travel navigation service system implementation as one of the context-aware services and also report unresolved issues, which include network mobility support, trust relationship among agents and device interconnection.
Archive | 2000
Kenya Nishiki; Masataka Ota; Kenichi Yoshida
Archive | 1997
Kiminori Sugauchi; Toshiaki Hirata; Kenya Nishiki; Satoshi Miyazaki; Keizo Mizuguchi; Shuji Fujino
Archive | 2003
Kenya Nishiki; Tadamichi Sakata; 匡通 坂田; 健哉 西木
Archive | 2006
Masanori Mori; Kenya Nishiki; Erika Tanaka; 真紀 森; 英里香 田中; 健哉 西木
Archive | 2004
Makoto Kayashima; Kenya Nishiki; Tadamichi Sakata; 匡通 坂田; 信 萱島; 健哉 西木
Archive | 2005
Kojiro Nakayama; Masayuki Sakata; Takeshi Ishizaki; Kenya Nishiki
Archive | 2002
Kenya Nishiki; Tadamichi Sakata; Junji Shimizu; 匡通 坂田; 淳 清水; 健哉 西木
Archive | 2007
Kenya Nishiki
Archive | 2002
Kenya Nishiki; Tadamichi Sakata; Junji Shimizu; 匡通 坂田; 淳 清水; 健哉 西木