Document Type

Article

Language

eng

Format of Original

20 p.

Publication Date

8-2010

Publisher

Springer

Source Publication

Telecommunication Systems

Source ISSN

1018-4864

Original Item ID

doi: 10.1007%2Fs11235-009-9261-y

Abstract

In order to ensure secure sharing of resources in an ad-hoc network of handheld devices in a multimedia and ubiquitous computing environment, mutual collaboration is essential. However, the limitations, such as poor storage and computational capability of these multimedia and ubiquitous devices stand as the bottleneck for effective sharing of resources. As a result of this drawback, the adversaries are obtaining access to the new doors for security breaches. Mutual Trust is the weapon used to combat security violations by restricting malicious devices from participating in any interaction in such an open and dynamic environment. In this paper, we present a context-specific and reputation-based trust model along with a brief survey and a comparative study of the existing trust models found in the literature. To the best of our knowledge, our model is the first formal trust model for multimedia and ubiquitous computing, which incorporates multi-hop recommendation capability and flexible behavioral model to handle interactions among devices. The other major contribution of this universal trust model is a simple protocol for circumventing malicious recommendations and handling them for achieving accuracy. This paper also illustrates the implementation and evaluation detailed of our proposed omnipresent formal trust model.

Comments

Accepted version. Telecommunication Systems, Vol. 44, No. 3 (August 2010): 221-240. DOI. © 2010 Springer. Used with permission.

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