A trust evaluation method based on fuzzy filtering

A fuzzy, trust value technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as low reputation value, increase the stability of trust model, and maliciously drive up reputation value, so as to improve enthusiasm and reduce The probability of whitewashing and the effect of increasing stability
CN104009993BActive Publication Date: 2017-06-13华炫鼎盛(北京)科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
华炫鼎盛(北京)科技有限公司
Publication Date
2017-06-13

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Abstract

The invention relates to a trust evaluation method based on fuzzy filtration. According to the method, based on the Dirichlet reputation evaluation system and the fuzzy theory, an evaluation matrix is established to refine user evaluation, calculate a direct trust vector, conduct evaluation filtration, conduct evaluation convergence, calculate a recommended trust vector and calculate a comprehensive trust value, and finally a transaction is conducted between a solicited node and a corresponding node which has a high comprehensive trust value; in this way, the technical problem of the prior art that the reputation value of a node in a P2P network is too low, and therefore the reputation value is whitewashed or driven up maliciously is solved. Meanwhile, by updating the Dirichlet prior basic rate, the motivation of providing high-quality services of the nodes is effectively improved, the node whitewashed probability is reduced to a certain degree, and the stability of a trust model is improved.
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Description

technical field

[0001] The invention relates to the technical field of trusted computing in information security, in particular to the construction of a multi-evaluation trust assessment system, and more specifically to a Dirichlet trust assessment system based on fuzzy filtering. Background technique

[0002] With the rapid development of information technology, the sharing of various resources among network users has become a reality. P2P network has become a hot research field of scholars nowadays because of its unique sharing concept and convenient structure characteristics. Considering the open, anonymous and dynamic structural characteristics of the P2P network, the two parties sharing the transaction cannot get the security guarantee in the real world. The entry and exit of nodes in the P2P network is free and arbitrary, and lacks a corresponding restraint mechanism. This embodies the concept of freedom and equality in the creation of P2P networks, and at the same t...

Claims

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