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Assessing multi-hop interpersonal trust in online social networks (OSNs) is critical for many social network applications such as online marketing but challenging due to the difficulties of handling complex OSN topology, in existing models such as subjective logic, and the lack of effective validation methods. To address these challenges, we for the first time properly define trust propagation and...
The success of a public key infrastructure such as the Web of trust (WoT) heavily depends on its ability to ensure that public keys are used by their legitimate owners, thereby avoiding malicious impersonations. To guarantee this property, the WoT requires users to physically gather, check each otherpsilas credentials (e.g., ID cards), to sign the trusted keys, and to subsequently monitor their validity...
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