Improvement of a Multi-Role-Based Access Control Policy Victor R. L. SHEN
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2000/07/25 Vol. E83-ANo. 7 ;
pp. 1483-1485 Type of Manuscript: LETTER Category: Information Security Keyword: multi-role-based access control, cryptography, security of data, user hierarchy,