A blockchain user credibility evaluation method based on interactive behavior

An evaluation method and blockchain technology, applied in secure communication devices, digital transmission systems, electrical components, etc., can solve problems such as high computational overhead, insufficient comprehensiveness, lack of trust relationship evolution affecting effective detection of malicious nodes, etc., to improve accuracy The effect of reducing the cost of time and space

Active Publication Date: 2021-06-04
南京优慧信安科技有限公司
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  • Application Information

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Problems solved by technology

However, the current methods and means of evaluating the credibility of blockchain users in the research community are not comprehensive enough. Many existing methods usually only stay at simple and direct credibility calculations, and lack the transmission of trust relationships, evolutionary influence, and Research on effective detection of malicious nodes, etc., and the calculation overhead of existing methods when calculating user credibility is relatively large

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  • A blockchain user credibility evaluation method based on interactive behavior
  • A blockchain user credibility evaluation method based on interactive behavior
  • A blockchain user credibility evaluation method based on interactive behavior

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Embodiment Construction

[0045] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.

[0046] Such as figure 1 As shown, a blockchain user credibility evaluation method based on interactive behavior disclosed in the embodiment of the present invention evaluates the credibility of interactive users through the superposition of global reputation, direct trust value, and recommended trust value, so as to conduct interactive Decision-making, while encouraging honest user nodes and punishing cheating user nodes through the trust update mechanism, so that users can know the credibility of...

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Abstract

The invention discloses a blockchain user credibility evaluation method based on interactive behavior. The method first calculates the direct trust value of the target user according to the historical interaction information, and then calculates the global reputation of the target user after filtering the colluding groups ; Then calculate the recommended trust value of the target user according to the trust network; then calculate the current trust value of the target user by combining the direct trust value and the recommended trust value; finally, after the new interaction is generated, use the adaptive trust reward and punishment factor to evaluate the result renew. The present invention comprehensively quantifies and evaluates the credibility of blockchain users from the three levels of global reputation, direct trust value, and recommended trust value, and can improve the accuracy of evaluation results by filtering collusion groups. The search method can reduce the time and space consumption of recommendation trust calculation, and the user's speculative behavior can be constrained by the trust reward and punishment factor.

Description

technical field [0001] The invention relates to a method for evaluating the credibility of blockchain users based on interactive behaviors. The method quantitatively evaluates the credibility of blockchain users according to user interaction behaviors, and belongs to the application field of distributed computing. Background technique [0002] Blockchain is the core supporting technology of digital currency represented by Bitcoin. It is essentially a distributed ledger (Decentralized shared ledger) formed by sequentially appending blocks confirmed by consensus using cryptographic technology. Its biggest advantage lies in All participants on the network can share, but no single entity has complete control. The blockchain packages the data in the form of blocks in chronological order, and each block is linked to the previous block to form a chained shared distributed tamper-proof database. Blockchain technology has outstanding advantages such as decentralization, trustlessnes...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L63/1425H04L9/50
Inventor 杨鹏羊梦娇李幼平赵广振
Owner 南京优慧信安科技有限公司
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