Method and system for digital currency payment using digital currency chip card

Abstract

The invention provides a method and a system for carrying out digital currency payment by a digital currency card so as to solve the deficiencies in the prior art. The other beneficial effects of the method can be obtained from implementation ways. The method comprises the following steps that: terminal equipment receives payment amount information input by an external operation and then sends the payment amount information to a digital currency chip card; the digital currency chip card selects the digital currency of a payment amount and sends the digital currency to terminal equipment; after the terminal equipment receives the digital currency, a first request is generated and sent to a commercial bank digital currency system; after the commercial bank digital currency system receives the first request, a second request is generated and sent to a central bank digital currency system; the central bank digital currency system executes an operation of a preset item according to the second request and returns an operation success instruction to the commercial bank digital currency system; and after the commercial bank digital currency system receives the operation success instruction, trading success information is fed back to the terminal equipment.

Description

technical field [0001] The invention relates to the technical field of computer network and computer software, in particular to a method and system for digital currency payment using a digital currency chip card. Background technique [0002] Digital currency is a currency that converts cash values ​​into a series of electronically encrypted serial numbers. The security of the currency itself depends on cryptographic algorithms for protection. In terms of cryptographic algorithms, the security of digital currency systems involves symmetric ciphers, asymmetric ciphers, message digest algorithms, and identity-based cryptographic systems. In terms of system implementation, the overall security of cryptographic systems, the selection of cryptographic algorithms, and cryptographic algorithms must be deeply considered. The implementation of algorithms, the design of interactive protocols, the compatibility of international and domestic standards, etc., ensure the security of digit...

AI Technical Summary

Problems solved by technology

[0010] 2. Non-repeatable spending: digital currency can only be used once, and repeated spending can be easily checked;

[0011] 3. Controllable anonymity: Banks and merchants cannot track the use of digital currency even if they collude with each other. It is required that the system cannot link the purchase behavior of users of electronic cash together, thereby concealing the purchase history of digital currency users. However, the issuer of digital currency Use of digital currency can be tracked;

[0012] 4. Unforgeability: Users cannot forge fake digital currency;

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