Title
A mechanism for detecting dishonest recommendation in indirect trust computation.
Abstract
Indirect trust computation based on recommendations form an important component in trust-based access control models for pervasive environment. It can provide the service provider the confidence to interact with unknown service requesters. However, recommendation-based indirect trust computation is vulnerable to various types of attacks. This paper proposes a defense mechanism for filtering out dishonest recommendations based on a measure of dissimilarity function between the two subsets. A subset of recommendations with the highest measure of dissimilarity is considered as a set of dishonest recommendations. To analyze the effectiveness of the proposed approach, we have simulated three inherent attack scenarios for recommendation models (bad mouthing, ballot stuffing, and random opinion attack). The simulation results show that the proposed approach can effectively filter out the dishonest recommendations based on the majority rule. A comparison between the exiting schemes and our proposed approach is also given.
Year
DOI
Venue
2013
10.1186/1687-1499-2013-189
EURASIP J. Wireless Comm. and Networking
Keywords
Field
DocType
False Negative Rate, Matthews Correlation Coefficient, Dissimilarity Function, Pervasive Environment, Recommended Trust
Matthews correlation coefficient,Computer science,Computer security,Filter (signal processing),Service provider,Ballot,Access control,Majority rule,Computation
Journal
Volume
Issue
ISSN
2013
1
1687-1499
Citations 
PageRank 
References 
20
0.54
25
Authors
3
Name
Order
Citations
PageRank
Naima Iltaf1427.64
Abdul Ghafoor217940.85
Usman Zia3231.29