You can manage bookmarks using lists, please log in to your user account for this.
Media type:
E-Article
Title:
DEIT: Dempster Shafer Theory‐based edge‐centric Internet of Things‐specific trust model
Contributor:
Bhargava, Arpita;
Verma, Shekhar
imprint:
Wiley, 2021
Published in:
Transactions on Emerging Telecommunications Technologies, 32 (2021) 6
Language:
English
DOI:
10.1002/ett.4248
ISSN:
2161-3915
Origination:
Footnote:
Description:
<jats:title>Abstract</jats:title><jats:p>The potential benefits of edge‐centric Internet of Things (IoT) come with increased security threats and because the edge devices may be compromised into sending or forwarding wrong information. To negate the effect of wrong information on inference, such messages need to be identified. Identification and dropping of messages in the network as early as possible would minimize the communication overhead. Trust values of nodes help in the early identification of such messages. In this work, the Dempster Shafer Theory (DST)‐based edge‐centric IoT‐specific Trust Model (DEIT) is designed to compute trust to include the specific characteristics of IoT. Edge servers use DEIT to compute trust value of edge devices in the network. In DEIT, DST combines the available trust messages. DIET also uses the degradation variable, credibility variable, punishment variable, re‐compensating variable, and pardoning variable to compute final trust value. The computed trust value assists the edges in taking correct decisions. Simulation results demonstrate that it can immediately capture two major types of misbehavior, namely, information drop and modification under both sparse and dense traffic conditions. Through scenarios in the results section, the depiction of various possible misbehaviors has been discussed. Scenario 1 and 2 discuss a situation where a malicious edge device misbehaves in two ways, namely, dropping and modification of information, respectively. In scenario 3 and 4, situations are discussed when the trust opinion of the trusted and distrusted devices are neutralized with time using the degradation factor to illustrate and compare changes in trust values in two different situation.</jats:p>