Digital currency double offline payment realization method, device and apparatus and storage medium

Abstract

The invention discloses a digital currency double offline payment realization method, device and apparatus, and a storage medium. The method includes the following steps: connecting an issuing end ofa digital currency with a wallet end by using a digital currency distribution mechanism, and distributing the currency to the wallet end of a user for storing digital assets based on a blockchain modethrough the digital currency distribution mechanism; when the user performs offline payment in the digital wallet, enabling a receiving party and a paying party to establish connection through NFC; realizing identity verification and encrypted communication by exchanging public keys of the receiving party and the paying party; and sending the collection amount input by the receiving party to thepaying party, generating a transaction according to assets organized by the paying party to prompt the paying party to confirm signatures; and sending the generated transaction to the receiving partyand notifying the receiving party to verify whether assets in the transaction are legal or not, and after the receiving party confirms the transaction and signatures, the receiving party and the paying party encrypting and storing new assets and waiting for uploading to the block chain, so that double offline transaction is realized, and safe payment is realized under the condition that the receiving party and the paying party are offline.

Description

technical field [0001] The present invention relates to the technical field of blockchain applications, and in particular to a method, device, equipment, and storage medium for realizing digital currency dual offline payment. Background technique [0002] With the advancement of science and technology, blockchain technology is booming and in the ascendant. Blockchain has been widely used in many industries, especially the financial field, due to its distributed ledger, traceability, non-tampering, low trust and other characteristics. Many governments and enterprises are also actively trying to use blockchain technology to solve digital currency issuance. technical problems in the. [0003] However, there are still many problems in some existing blockchain-based digital currency products, and there is still a long way to go before entering the field of mass consumption. These questions mainly focus on the following points: [0004] 1. To complete a transaction in the block...

AI Technical Summary

Problems solved by technology

[0004] 1. To complete a transaction in the blockchain needs to wait for a long confirmation time

[0005] 2. Both parties to the transaction must remain online in real time or for a long time (connected to the blockchain network), and offline payment cannot be realized

[0006] 3. All transaction history records can be traced on the chain, and the actual privacy security of users is not high

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