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Credible and secure lightweight block chain implementation system and method

A technology for implementing systems and blockchains, applied in the field of lightweight blockchain implementation systems, can solve the problems of insufficient endogenous security of blockchain systems, difficulty in taking into account security and lightweight, and insufficient system versatility. Achieve the effect of improving endogenous security, increasing endogenous security, reducing complexity and energy consumption

Pending Publication Date: 2022-04-19
上海交通大学宁波人工智能研究院
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Problems solved by technology

[0007] In view of the above-mentioned defects of the existing technology, the technical problem to be solved by the present invention is how to solve the problems of insufficient endogenous security, large resource consumption, difficulty in balancing security and lightweight, and insufficient system versatility in the existing blockchain system. The problem

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  • Credible and secure lightweight block chain implementation system and method
  • Credible and secure lightweight block chain implementation system and method
  • Credible and secure lightweight block chain implementation system and method

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Embodiment Construction

[0042] The following describes several preferred embodiments of the present invention with reference to the accompanying drawings, so as to make its technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned herein.

[0043] In the embodiment of the present invention, in order to solve the problems of insufficient endogenous security, large resource consumption, difficulty in taking into account security and light weight, and insufficient generality of the system in the existing blockchain system, a trusted and secure method is provided. The lightweight blockchain implementation method and device can measure and calculate the trustworthiness of nodes in real time during the operation of the blockchain system, and combine smart contracts with automatic real-time reward and punishment measures according to the node's ...

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Abstract

The invention discloses a trusted and secure lightweight block chain implementation system and method, and relates to the technical field of block chains and the technical field of information security, and the system comprises an information collection module which is responsible for collecting interaction behavior data of network access nodes in a block chain system; the trust management module interacts with the information collection module, obtains a quantitative judgment result of the trust degree of the network access node by calculating the trust value of the network access node, and divides the network access node into a high credible node and a low credible node according to the quantitative judgment result; and the lightweight module is connected with the trust management module, receives a result of the trust management module, and adopts a consensus algorithm, an encryption and decryption algorithm and a data verification mechanism with different complexities to high-credible nodes and low-credible nodes in the network access nodes to achieve lightweight deployment of the whole system. And converting the zero-trust block chain network into a trusted block chain network.

Description

technical field [0001] The present invention relates to the technical field of blockchain and the technical field of information security, in particular to a trusted and safe lightweight blockchain implementation system and method. Background technique [0002] At present, the non-tampering and traceability features provided by blockchain technology are only suitable for ensuring the authenticity of the data and records on the chain. There is no effective identification method for the authenticity of the data on the chain, and it is difficult to ensure the authenticity of the data that is not on the chain. ; Nodes in the blockchain network, out of their own interests, will generate malicious behaviors that attack the network, such as double-spending attacks, replay attacks, and collusion attacks. It is difficult for the existing blockchain system to take effective defense methods against malicious behavior of nodes; at the same time, the existing blockchain system needs to c...

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Application Information

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IPC IPC(8): H04L9/32H04L9/40H04L67/1097H04L41/082H04L41/16
CPCH04L9/3221H04L9/3226H04L9/3263H04L9/3297H04L63/10H04L63/20H04L67/1097H04L41/082H04L41/16H04L2463/121
Inventor 王东初伏玉笋于亚杨根科
Owner 上海交通大学宁波人工智能研究院
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