427 search results - page 15 / 86 » Policies: Giving Users Control over Calls |
CNSR
2005
IEEE
14 years 3 months ago
2005
IEEE
This paper presents an approach for managing access to services over presence-based communications based on the context of the situation. This paper addresses two technical challe...
COLCOM
2007
IEEE
14 years 4 months ago
2007
IEEE
—In an ad-hoc collaborative sharing environment, attribute-based access control provides a promising approach in defining authorization over shared resources based on users’ p...
SDMW
2007
Springer
14 years 4 months ago
2007
Springer
Abstract. We investigate the experimental effectiveness of query rewriting over XML security views. Our model consists of access control policies specified over DTDs with XPath e...
INFOCOM
2006
IEEE
14 years 3 months ago
2006
IEEE
— We consider feed-forward packet switched networks with fixed routing and random congestion losses. Users of the network are assumed to be greedy in the sense that each user in...
CONTEXT
2003
Springer
14 years 3 months ago
2003
Springer
In conventional security systems, protected resources such as documents, hardware devices and software applications follow an On/Off access policy. On, allows to grant access and ...