Counterfeit money identification method based on block chain and SDN

Abstract

The invention provides a counterfeit money identification method based on a blockchain and an SDN (Software Defined Network), and the method comprises the steps: a terminal being connected with a switcher, the switcher being connected with an SDN controller, the SDN controller being connected with a cloud server, and forming a counterfeit money identification system for counterfeit money identification. The method comprises: the terminal extracting and processing the feature data of the suspected counterfeit money and sending the feature data to the SDN controller; the SDN controller performing data analysis; when the banknote is judged to be counterfeit banknote, sending the generated identification code and the characteristic data to a cloud server, comparing the received suspected counterfeit money characteristic data with the true money characteristic information, analyzing distinguishing characteristic data, updating a suspected counterfeit money characteristic information base, creating a counterfeit money blacklist strategy, and storing the counterfeit money blacklist strategy and the characteristic data in a block chain node. Compared with a traditional currency detection method which performs feature comparison item by item through genuine currency and to-be-detected currency, the currency detection method is small in resource consumption and high in speed, feature information amount stored in the terminal is reduced, the security of the switching network is improved, and the risk of being stolen is reduced.

Description

technical field [0001] The invention relates to computer communication technology, in particular to a method for identifying counterfeit banknotes based on blockchain and SDN (software-defined network). Background technique [0002] Blockchain is a term in the field of information technology. In essence, it is a shared database, and the data or information stored in it has the characteristics of "unforgeable", "retaining traces throughout the process", "traceable", "open and transparent", and "collective maintenance". Based on these characteristics, blockchain technology has laid a solid "trust" foundation, created a reliable "cooperation" mechanism, and has broad application prospects. [0003] Blockchain technology is a new technology composed of consensus mechanism, database, cryptography, P2P and other technologies, and security has always been the focus of research by all parties. Information about sender, receiver, and transaction amounts between parties is an import...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems in the prior art, the present invention proposes a counterfeit banknote identification method based on block chain and SDN (software-defined network), which can solve the problem that resource consumption is large when checking banknotes by banknote detectors or ATM cash machines, and that the characteristics of genuine banknotes are easily The problem of theft, and the low security of the transmission network, and the problem of resource consumption in the establishment of a central server

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