|Title||Attribute delegation in ubiquitous environments|
|Publication Type||Conference Paper|
|Year of Publication||2007|
|Authors||I. Agudo, J. Lopez, and J. A. Montenegro|
|Conference Name||3rd international conference on Mobile multimedia communications (MobiMedia ’07)|
|Conference Location||Nafpaktos, Greece|
When delegation is implemented using the attribute certificates in a Privilege Management Infrastructure (PMI), this one reaches a considerable level of distributed functionality. However, the approach is not flexible enough for the requirements of ubiquitous environments. Additionally, the PMI can become a too complex solution for devices such as smartphones and PDAs, where resources are limited. In this work, we solve the previous limitations by defining a second class of attributes, called domain attributes, which are managed directly by users and are not right under the scope of the PMI, thus providing a light solution for constrained devices. The two classes of attributes are related by defining a simple ontology. We also introduce in the paper the concept of Attribute Federation which is responsible for supporting domain attributes and the corresponding ontology.
Attribute delegation in ubiquitous environments