Name
Abstract | ||
|---|---|---|
Although P2P systems are usually used for informationexchange between peers, they have either protectedpeers' anonymity, or required transacting peers to trusteach other implicitly. Both these approaches arevulnerable to attacks by malicious peers who could abusethe P2P system to spread viruses, incorrect, or damaginginformation.In this paper, we propose an approach for trustmanagement in P2P systems. We introduce an optimisticrole-based model for trust amongst peers and show that itis scalable, dynamic, revocable, secure and transitive.Our proposed solution permits asymmetric trustrelationships that can be verified by any peer in thesystem through a simple, low-cost algorithm. This paperintroduces a metric known as iComplex that combines apeer's trust value for each of its roles into a single,relative, probabilistic guarantee of trust. Finally, wediscuss how our trust model allows peers to revokerelationships with malicious peers, and the non-repudiation of peer relations.We use simulations to illustrate the trust valuedistribution amongst peers in the network. Our analysisand experiments demonstrates the low-cost involved toverify and validate trust values. Lastly, we establish theeffectiveness of using sum as the aggregation function tocombine trust values of a peer. |
Year | DOI | Venue |
|---|---|---|
2004 | 10.1109/IWIA.2004.1288044 | IWIA |
Keywords | Field | DocType |
communities,dynamic coalitions,peer-to- peer,validate trust value,trust valuedistribution,trust.,peer-to-peer communities,low-cost involved toverify,trust value,malicious peer,aggregation function tocombine trust,role-based trust model,p2p system,trust model,optimisticrole-based model,low-cost algorithm,trust,access control,knowledge management,distributed processing,information exchange | Internet privacy,Political science,Trust anchor,Peer-to-peer,Computer security,Information exchange,Probabilistic logic,Computational trust,Anonymity,Transitive relation,Scalability | Conference |
ISBN | Citations | PageRank |
0-7695-2117-7 | 15 | 1.23 |
References | Authors | |
14 | 3 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Mujtaba Khambatti | 1 | 39 | 2.71 |
| Partha Dasgupta | 2 | 298 | 47.40 |
| Kyung Dong Ryu | 3 | 353 | 27.98 |