A blockchain-based transaction security identification method

Abstract

The invention provides a block chain-based transaction security identification method. The terminal takes images related to counterfeit banknotes, forms the first data packet and sends it to the switch; the SDN controller reads the first data packet sent by the switch, analyzes and generates a counterfeit banknote traceability strategy, stores it in the blockchain node, and uploads the first data package To the cloud server; the cloud server establishes a counterfeit banknote traceability file database; the SDN controller sends the counterfeit banknote feature information and blockchain node related information to the switch, and the switch sends the blockchain node related information including the counterfeit banknote traceability strategy to all terminals in the entire network; The terminal implements counterfeit banknote traceability strategy. The invention reduces the failure rate of the terminal camera, improves the stability of the exchange network, and enhances the security of counterfeit banknote tracking strategies.

Description

technical field [0001] The invention relates to the technical fields of big data, block chain and SDN, and relates to a transaction security identification method based on block chain, in particular to a counterfeit banknote tracing method based on block chain and SDN (software defined network). Background technique [0002] With the rapid development of Internet technology, technologies such as computer, big data, artificial intelligence, Internet of Things and information security have had a profound impact on people's work, life and way of thinking. The rapid development and popularization of Internet technology has greatly promoted social progress and national economic development. However, while Internet technology brings convenience to people, it also brings some negative effects to people's life. With the increasing amount of Internet data and people's increasing dependence on the Internet, the problem of network information security has become more and more prominen...

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a method for tracing counterfeit banknotes based on blockchain and SDN (Software Defined Network), which can solve the problems of resource consumption and high failure rate of real-time shooting of banknote images or nearby images by banknote detectors or ATM cash machines, and also solves the problem of high failure rate in transmission The network security is low, and the establishment of additional central servers consumes resources

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