An electronic bill transaction system based on private blockchain

Abstract

The invention discloses an electronic bill transaction system based on a private block chain, which includes a network management system and a user system; the management system includes a network creation module, a statistics storage module and a network update module; the network creation module includes multiple Routing and multiple user nodes; each route sets the routing interface through routing mapping, and the user node connects to another user node through the routing interface set by the routing; the network update module is used to initialize user nodes, add user nodes and delete User node; the user system is installed at the user node, and the user system is used to realize the transaction between the transaction initiator and the transaction receiver, and the block formed by the transaction data is added to the node network through the smart contract. in the blockchain. The invention ensures the security of the account information in the transaction, and also ensures the security and tamper-proof of the transaction information.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to an electronic bill transaction system based on a private block chain. Background technique [0002] Due to its decentralization and non-tamperable information, blockchain technology is increasingly favored by companies in the fields of finance and insurance, especially the use of blockchain technology to achieve multi-party transactions (for example, transfer Transactions, payment transactions, etc.) are increasingly becoming the focus of attention. For example, when bank A wants to buy 100 bills to bank B, if the transaction is carried out on the blockchain, then all other nodes on the blockchain will The advantage of seeing this transaction is that other participants can participate in confirming the accuracy of the transaction and preventing information tampering. However, since there is no absolute authority node in the decentralized blockchain system, collective ver...

AI Technical Summary

Problems solved by technology

However, since there is no absolute authority node in the decentralized blockchain system, collective verification of each transaction is a necessary step, which makes the transactions of the transaction participants no secret at all, and an organization's account also May be tracked by institutions on other nodes, which brings the risk of information leakage

[0003] Although the industry currently adopts some blockchain transaction solutions to solve information leakage, the existing solutions use traditional cryptographic algorithms, including the Hash algorithm, which is a one-way cryptographic system. It is an irreversible mapping from plaintext to ciphertext, only encryption process, no decryption process; elliptic curve encryption method is a public key encryption technology, based on elliptic curve theory, using the points of elliptic curve on the finite field to form Point group discrete logarithm incomprehensibility, to achieve encryption, decryption and digital signature, the addition operation in the elliptic curve corresponds to the modular multiplication operation in the discrete logarithm, and the corresponding cryptographic system based on the elliptic curve can be established; based on the above algorithm The solution is either that the information leakage is not solved thoroughly, or the calculation efficiency is low, and the system operation cost is huge, which limits the application of blockchain technology in transaction scenarios.

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