Trustworthiness and CCCI metrics in P2P communication

Publication Type:
Journal Article
Citation:
Computer Systems Science and Engineering, 2004, 19 (3), pp. 173 - 190
Issue Date:
2004-05-01
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Trustworthiness in Peer-to-Peer (P2P) communication is a foundation for the success of e-Business. Numerous methods and techniques have been proposed to help establish trust between two communicating peers. These methods and techniques refer to trust models and trust management protocols [1-21]. They propose methods of assigning trustworthiness by gathering recommendations (reputation) from other peers. There is also no work done in the existing literature on how to assign a trustworthiness value to a peer in a real world situation. In this paper, we first define the concept of trustworthiness in the context of P2P communication. We then present seven levels of trustworthiness, their associated trustworthiness values and semantics. We describe our CCCI metrics that can be used by the trusting peer to assign a trustworthiness value to a trusted peer after an interaction (not though reputation). This is typically needed in P2P communication because the majority of P2P communication is anonymous. We also give a framework on how to use CCCI metrics to assign trustworthiness values in a real world situation and this is demonstrated with examples.
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