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To enhance the security of spectrum sensing in centralized cognitive radio networks, we introduce a novel trust game-based model. We aim at encouraging the secondary users to send correctly their local sensing outcomes to the data fusion center. Our proposal ensures both the attacks detection and the punishment of malicious users. Indeed, our proposed punishment function intends to exempt the malicious...
Security in cognitive radio networks is still an open challenge especially with the increased number of attacks. Many approaches were proposed in literature in order to secure the CRNs such as the trust management and reputation. However, most of existing trust approaches focus on the attacks detection and do not take into consideration the penalty of the malicious users. To address this issue, we...
Parties are expected to be cooperative such that some tasks, e.g. Two-party computation in social cloud, become much easier. It is well known that reputation is an important property to promote cooperation among parties in game theory. Therefore, we consider the effect of reputation when parties interact in social cloud to find a new way realizing mutual cooperation. More specifically, parities in...
In Mobile Ad-Hoc Networks (MANETs), establishing trust relationships between the nodes in a decentralized fashion has been an important research issue for a long time. If the sender nodes accurately identify the legitimate nodes in the network, a robust routing can be provided while mitigating the effects of malicious nodes. Further, there is always a mutual interaction between a sender and its neighbor...
This paper focuses on the design of security enforcement mechanisms for the prevention of denial of service (DoS) attacks in wireless sensor networks. In the first part, we identify the requirement for security enforcement using auction theory, which allows us to detect non-cooperative nodes. Our novel scheme for preventing DoS attacks is called Secure Auction based Routing (SAR). In the proposed...
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