Credit evaluation method used in P2P overlay network configuration based on group

A technology of overlay network and network architecture, which is applied in the field of group-based reputation evaluation in P2P overlay network architecture, and can solve problems such as complex process and large errors

Inactive Publication Date: 2012-05-23
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0018] The disadvantage of this method is that when performing matrix iterative calculations, the process is relatively complicated and the error is large

Method used

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  • Credit evaluation method used in P2P overlay network configuration based on group
  • Credit evaluation method used in P2P overlay network configuration based on group
  • Credit evaluation method used in P2P overlay network configuration based on group

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Our reputation calculation is divided into three parts, and of course these three parts will appear iteratively.

[0039] (1) Behavioral reputation

[0040] This part of the reputation value will be calculated by the behavior of the node. The behavior of the node is divided into two parts, the current performance behavior and the past historical behavior performance. We use time slice (time window) to calculate, use Cr u (k) represents the reputation value of entity u during time slice k, and Cr(u) represents the cumulative reputation value of entity u up to time k. then there is

[0041] Cr ( u ) = Σ k = 1 K Cr u ( k ) ①

[0042] in

[0043] Cr u ( ...

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Abstract

The invention relates to a node credit evaluation method based on a group or a cluster used in group or cluster based P2P overlay network configuration. A new credit evaluation system considers the following three essential factors: behavior credit which represents credit degrees of a node historical transaction record and a present behavior; group credit which represents a total credit degree of a group of mutually associated entity nodes to restrict a malicious behavior appeared in a group, wherein, a multinode cooperation cheating behavior is responded well simultaneously; introduction of recommendation credit, wherein, a requirement of sharing resource by a newly added node is solved well, and the newly added node can merge into a network rapidly in a short time. In the P2P overlay network configuration based on group or cluster (103), whatever form is used by the group or cluster to carry out association, a CN (cluster head node) (101) of the group or cluster plays a role of supervising an adjacent group and restricting a present group node.

Description

technical field [0001] The present invention relates to a group (or group, Group or Cluster based) peer-to-peer overlay (P2P Overlay) network architecture, a method for group (or group) based node reputation evaluation. Background technique [0002] P2P (Peer to Peer) technology has been widely used in the resource sharing business of the current Internet. However, due to the lack of good trust and security mechanisms, the wide application of P2P systems is limited to a certain extent. In the group (or group)-based P2P overlay network architecture, the present invention proposes a group (or group)-based node reputation evaluation system to realize node reputation calculation and ensure data and entity node security. [0003] In the P2P system, each entity node acts as a service provider (provider) and at the same time acts as a service requester (requestor), and each entity interacts directly to share resources. For example, when downloading files from the other party or c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q30/02H04L29/08
Inventor 冯钢薛飞腾张翼德
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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