Trust Course CS 6381 -- Grid and Peer-to-Peer Computing Gerardo Padilla.
A Domain-Based Trust Model in Peer-to-Peer...
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A Domain-Based Trust Model in Peer-to-Peer Environment FEN XU and YAJUN GUO Department of Computer Science, Huazhong Normal University, Wuhan, China In large scale peer-to-peer networks, it is difficult to establish the trust relationship between peers as it is less likely that repeatable interactions will occur with the same peer. So the network is vulnerable to malicious peers. In order to settle the problem, a novel domain-based trust model is proposed in this paper. This model can be used to deal with trust relationship between the entities in peer-to-peer environment and help peer-to-peer entities make trust choice. Select a node whose performance is the optimal as a super-node in each domain of nodes. Some information of nodes in this domain is stored in super- nodes. There are a lot of this kind of domains in the whole peer-to-peer structure, and super-nodes in each domain are connected in the form of the pure peer-to-peer structure in the overall structure. This model divides the trust relationships between entities into a trust relationship in domain and the trust relationship between domains which are dealt with in a different way. This model can evaluate the trust relationship between the entities more accurately, thus can solve security issues more effectively in the peer-to-peer environment. We present the implementing process of this model, and propose several formulae to respectively calculate the trust value in the domain and the trust value between domains. Furthmore, the simulation and analyses show that this model can get more real trust value at the small price, and the advantages of the model are simple structure and high reliability. In conclusion, we propose a novel domain-based trust model based on the super-node network architecture. The structure of this model is very simple. The model is very easy to be accepted by users and is suitable for many kinds of peer-to-peer application environments. The trust relationships between entities are divided into trust relationship in the domain and a trust relationship between domains in the model. For the different trust relationships, we use the different calculation method to assure the real-time performance, accuracy, integrity, and calculation efficiency of the trust value. In future, we will make much more specific definition and description for this model such as updating the strategy of the trust value and so on. We will also incorporate intrusion tolerant intelligence in this model, so that nodes are able to detect false information sent by any malicious node. International Journal of Distributed Sensor Networks, 5: 15, 2009 Copyright Ó Taylor & Francis Group, LLC ISSN: 1550-1329 print / 1550-1477 online DOI: 10.1080/15501320802506018 Address correspondence to Fen Xu, Department of Computer Science, Huazhong Normal University, Wuhan, China. E-mail: [email protected] 15
Transcript of A Domain-Based Trust Model in Peer-to-Peer...
A Domain-Based Trust Model in Peer-to-PeerEnvironment
FEN XU and YAJUN GUO
Department of Computer Science, Huazhong Normal University, Wuhan, China
In large scale peer-to-peer networks, it is difficult to establish the trust relationship between peers asit is less likely that repeatable interactions will occur with the same peer. So the network is vulnerableto malicious peers.
In order to settle the problem, a novel domain-based trust model is proposed in this paper. Thismodel can be used to deal with trust relationship between the entities in peer-to-peer environment andhelp peer-to-peer entities make trust choice. Select a node whose performance is the optimal as asuper-node in each domain of nodes. Some information of nodes in this domain is stored in super-nodes. There are a lot of this kind of domains in the whole peer-to-peer structure, and super-nodes ineach domain are connected in the form of the pure peer-to-peer structure in the overall structure. Thismodel divides the trust relationships between entities into a trust relationship in domain and the trustrelationship between domains which are dealt with in a different way. This model can evaluate thetrust relationship between the entities more accurately, thus can solve security issues more effectivelyin the peer-to-peer environment.
We present the implementing process of this model, and propose several formulae to respectivelycalculate the trust value in the domain and the trust value between domains. Furthmore, thesimulation and analyses show that this model can get more real trust value at the small price, andthe advantages of the model are simple structure and high reliability.
In conclusion, we propose a novel domain-based trust model based on the super-node networkarchitecture. The structure of this model is very simple. The model is very easy to be accepted by usersand is suitable for many kinds of peer-to-peer application environments. The trust relationshipsbetween entities are divided into trust relationship in the domain and a trust relationship betweendomains in the model. For the different trust relationships, we use the different calculation method toassure the real-time performance, accuracy, integrity, and calculation efficiency of the trust value. Infuture, we will make much more specific definition and description for this model such as updating thestrategy of the trust value and so on. We will also incorporate intrusion tolerant intelligence in thismodel, so that nodes are able to detect false information sent by any malicious node.
International Journal of Distributed Sensor Networks, 5: 15, 2009
Copyright � Taylor & Francis Group, LLC
ISSN: 1550-1329 print / 1550-1477 online
DOI: 10.1080/15501320802506018
Address correspondence to Fen Xu, Department of Computer Science, Huazhong NormalUniversity, Wuhan, China. E-mail: [email protected]
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