Transaction method and device using digital currency

Abstract

The invention discloses a transaction method and device using digital currency and relates to the field of computer technology. One embodiment of the method comprises the steps that in the process of a collection and payment transaction based on a distributed account book technology, a payment terminal encrypts a plaintext amount involved in the transaction to obtain a ciphertext amount, and a corresponding verification message is generated to be used for verifying or decrypting the ciphertext amount. Through the embodiment, the technical problem that it is difficult to keep capital confidential through the existing distributed account book technology is solved, and the technical effects of ensuring cooperative sharing and protecting transaction privacy are achieved.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a transaction method and device using digital currency. Background technique [0002] Blockchain is a new type of distributed technology. Protocol makers formulate and publish rules before the system runs, and develop clients that follow the protocol. Afterwards, multiple institutions or individuals act as nodes to connect and run the system. On the client side, the data generated by malicious nodes that do not conform to the agreement will be discarded by other honest nodes. This method of confrontational consensus is used to jointly maintain a general ledger, so that no centralized authority or individual can tamper with the initial agreement. imagine. [0003] The first blockchain application scenario is Bitcoin, which implements a currency system that stipulates issuance rules and transfer logic in advance. The source of currency issuance is the block reward Coinbase of th...

AI Technical Summary

Problems solved by technology

[0005] However, in the process of realizing the present invention, the inventor found that there are at least the following problems in the prior art: in real life, the point-to-point transaction amount between users (enterprises or individuals) generally has confidentiality requirements, and the total balance of users in the system also has Confidentiality needs

Traditional centralized solutions can easily set data access rights without cooperative bookkeeping, which can solve the privacy problem well, but users still hope to use the advantages of distributed technology such as blockchain to store multi-party data. Other documents and data for cooperation, but a complete closed business loop requires funds to participate in real-time clearing and settlement, which leads to the problem that cooperation sharing and transaction privacy cannot coexist

Images