Anti-quantum computing digital currency anonymous communication method and system based on ID cryptography

Abstract

The invention discloses an anti-quantum computing digital currency anonymous communication method and system based on ID cryptography. The method comprises the following steps: S1, issuing public and private keys and system public and private keys to a user, a commercial bank digital currency system and a central bank digital currency system respectively by using a key management server; s2, performing identity authentication on the commercial bank digital currency system and the central bank digital currency system by using an identity authentication method; s3, performing identity authentication on the user and the commercial bank digital currency system by adopting an identity authentication method, and obtaining a new anonymous identity of the user; and S4, anonymous transaction of digital currency among different users is realized through a digital currency transaction method. The anti-quantum computing digital currency communication system has the beneficial effects that the anti-quantum computing digital currency communication system is established, and the user communicates with the commercial bank digital currency system by using the frequently updated anonymous identity, so that the privacy information of the user can be protected, and the transaction is safer.

Description

technical field [0001] The invention relates to the field of identity authentication, in particular to an anonymous communication method and system for anti-quantum computing digital currency based on ID cryptography. Background technique [0002] The core elements of the digital currency D-RMB system of the People's Bank of China are one currency, two types of libraries and three centers. A coin, namely "D-RMB" (DC / EP), referred to as D coin, refers to a string of encrypted numbers signed by the central bank representing a specific amount. Two types of libraries: D-RMB issuance library and bank library (central bank digital currency database, commercial bank digital currency database). The digital currency appears as the central bank's digital currency fund in the issuance library; the digital currency appears as the commercial bank's inventory digital cash in the bank treasury. Three centers: one is the registration center (records the whole process of currency generatio...

AI Technical Summary

Problems solved by technology

[0006] 1. CA certification and IBC certification in the existing digital currency system cannot resist quantum computing;

[0007] 2. In the existing anti-quantum computing communication system based on quantum secure communication, the cost is too high for users and the management of symmetric keys is complicated;

[0008] 3. In the existing anti-quantum computing communication system based on the asymmetric key pool, it is necessary to generate the public key of all members into the asymmetric key pool and store it in each key card, which increases the storage cost of the client key card and operational workload;

[0009] 4. In the existing anti-quantum computing communication system based on asymmetric key pools, the overall process and data structure of the traditional CA authentication and IBC authentication systems have been changed, resulting in switching of CA authentication and IBC authentication systems and their corresponding user application systems The cost of anti-quantum computing solutions is too high;

[0010] 5. In the existing digital currency communication system, the identities of the sender and the payee are public, which may easily cause user privacy leakage

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