ISSN : 1796-203X
Volume : 4    Issue : 6    Date : June 2009

A Time and Mutable Attribute-Based Access Control Model
Ran Yang, Chuang Lin, and Fujun Feng
Page(s): 510-518
Full Text:
PDF (485 KB)

Access control is one of the most important technologies to guarantee computer security. A new
model with support for valid time and usage constraint is described based on full analysis of flaws
in existing models. In the new model, authorization rules can express access control policies
completely and access constraints are necessary conditions to prevent authorization abuse. To
solve the problems in implementation of the model, a sound scheme for administration of
authorizations is proposed and some access decision algorithms are developed.

Index Terms
mutable attribute, access constraint, time, access control