Method and system for depositing digital currency into digital currency chip card

Abstract

The invention provides a method and system for depositing digital currency into a digital currency chip card, which realizes the exchange between digital currency and physical currency, ensures the security of the transaction environment during the transaction process, and also provides safe custody of digital currency way. The method of the present invention includes: the digital currency system of the commercial bank receives the amount information of the physical cash and the digital currency chip card information of the exchange requesting party, and then determines the digital currency participating in the exchange according to the amount information, and then according to the digital currency and the exchange requesting party's The digital currency chip card information generates exchange request information, and then sends the exchange request information to the central bank's digital currency system; the central bank's digital currency system performs the operation of the preset project according to the exchange request information and returns an indication of successful operation to the commercial bank digital currency system. Currency system: After receiving the instruction of successful operation, the digital currency system of the commercial bank writes the digital currency into the digital currency chip card of the exchange requesting party.

Description

Technical field [0001] The present invention relates to the field of computer networks and computer software, and in particular, to a method and system for depositing a digital currency to a digital currency chip card. Background technique [0002] Digital currency is a currency that converts cash value into a series of electronic encrypted sequences, and the security of currency itself is protected by the password algorithm. In terms of password algorithms, digital currency system security involves symmetric password, asymmetric password, packet summary algorithm, and identity-based cryptographic system, must deeply consider the overall security of the cryptographic system in terms of system implementation, the choice of password algorithm, password The implementation of the algorithm, the design of the interactive protocol, the compatibility of international, domestic standards, etc., to ensure the transaction safety of digital currencies. [0003] With the development of mobil...

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;

[0018] 1. Digital currency cannot be compatible with physical currency circulation

In most countries, digital currency cannot be exchanged with physical currency; at the same time, since the currency attributes of most digital currencies have not been recognized by countries, the currency function of digital currency can only be realized on some special occasions, and cannot participate in economic activities. Each link, so that the scope of use of digital currency is limited

[0019] 2. The transaction risk of digital currency is high

Based on the fact that the transaction can be carried out as long as the transaction value is recognized by both parties, there is a greater transaction risk in the transaction process; at the same time, it is also possible that the transaction platform is attacked and the transaction is forged during the attack, resulting in losses for both parties

[0020] 3. There is currently no way for safekeeping of digital currency

Existing digital currencies are generally stored in local wallets. Taking Bitcoin as an example, when a Trojan horse infects a user's computer, it will automatically search for the wallet.dat file in the computer (Wallet.dat is the wallet data of Bitcoin) ), and then send it to the attacker to steal the user’s bitcoin. Therefore, how to safely keep the digital currency is also an urgent problem to be solved

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