Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2001/06/01 Vol. E84-DNo. 6 ;
pp. 700-708 Type of Manuscript: PAPER Category: Applications of Information Security Techniques Keyword: cryptographic key assignment, access control, user hierarchy, secure filter,
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1997/10/25 Vol. E80-ANo. 10 ;
pp. 2032-2034 Type of Manuscript: LETTER Category: Information Security Keyword: cryptographic key assignment, access control, group hierarchy,
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1997/10/25 Vol. E80-ANo. 10 ;
pp. 2035-2037 Type of Manuscript: LETTER Category: Information Security Keyword: cryptographic key assignment, access control, user hierarchy,