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Supervisable anonymous legal digital currency issuing and circulation method

A digital currency and statutory technology, applied in the field of digital currency, can solve the problem of difficult protection of user privacy information

Active Publication Date: 2021-06-18
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, while the data of the blockchain is open and verifiable, it is difficult to protect the user's private information. Therefore, it is very necessary to build a legal digital currency system based on the blockchain that can protect user privacy and realize supervision.

Method used

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  • Supervisable anonymous legal digital currency issuing and circulation method
  • Supervisable anonymous legal digital currency issuing and circulation method
  • Supervisable anonymous legal digital currency issuing and circulation method

Examples

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example

[0175] Currency Issue Transactions

[0176] According to the actual scenario, currency issuance generally includes two situations. One is that the central bank issues digital currency to commercial banks. The specific issuance time and total issuance amount are dynamically determined according to the needs of commercial banks; the other is that the central bank issues digital currency to specific institutions based on specific purposes. The following will take the first type of currency issuance as an example for demonstration and discussion. For the second type of currency issuance, the transaction construction method is the same as that given below.

[0177] figure 2 shown in A transaction of =0 shows that the central bank has issued a total of 500 digital currencies to commercial bank 1. It can be seen from the transaction data that the commitment to the transaction amount of "-500" is written in the corresponding column of the central bank, and the commitment of the tr...

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Abstract

The invention discloses a supervisible anonymous legal digital currency issuing and circulation method, currency issuing transaction and circulation transaction are recorded in a table type distributed account book, each column of the account book represents a system participant, each row represents a part of transaction information. The system participants comprise a central bank, a commercial bank and a common user; when a transaction is initiated, recording the following contents in a corresponding column: a Pedersen commitment of a transaction amount, a commitment of an account balance, a range proof, a tracking key and a tracking key proof; and during the transaction, verifying whether the sum of all transaction amounts committed to be hidden in each transaction is 0, and verifying whether the range proof and the tracking key proof created by the transaction initiator are correct.

Description

technical field [0001] The invention belongs to the technical field of digital currency, and in particular relates to a supervisable anonymous legal digital currency issuance and circulation method. Background technique [0002] With the development of modern technology, electronic payment methods have gradually become an important means of payment in people's lives, while the use of traditional banknotes has gradually shrunk due to lack of portability. Secondly, the cost of printing, issuing and circulating banknotes is high. In addition, traditional banknotes are easy to forge, and the identity of the currency owner cannot be confirmed, making it difficult to supervise, and there are risks of being used for money laundering and terrorist financing. Therefore, in today's highly digital era, it is a trend to realize a regulated anonymous digital currency. [0003] Today, digital currencies are mainly divided into three categories, centralized digital currencies, decentrali...

Claims

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Application Information

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IPC IPC(8): G06Q20/38G06Q20/40G06Q20/06
CPCG06Q20/065G06Q20/3829G06Q20/4014
Inventor 苏明许佳佳杨颖王刚刘晓光
Owner NANKAI UNIV