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公开(公告)号：EP4425408A1
公开(公告)日：2024-09-04
申请号：EP22885992.2
申请日：2022-10-26
发明人： MU, Changchun , DI, Gang , CUI, Peidong , ZHAO, Xinyu , GUO, Jianchang , YUAN, Qiao
IPC分类号： G06Q20/32
摘要： The present disclosure provides a digital currency transaction method and system, and related transaction terminals, and relates to the field of computer technology. A specific implementation of the method includes: exchanging, by a first transaction terminal, user certificates with a second transaction terminal to verify user identities of the two parties after establishing a communication connection with the second transaction terminal, negotiating with the second transaction terminal to generate a transaction factor after confirming that the user identity verification of the two parties succeeds, and uploading first digital currency transaction information including the transaction factor to a first operating institution back-end system, and sending, by the first operating institution back-end system, the first digital currency transaction information to a second operating institution back-end system to complete the digital currency transaction. This implementation achieves separation between identity verification and the transaction, reduces user interaction steps, simplifies the transaction process, is not limited by the transaction distance, supports both password-free and password-verified payments, and eliminates the need for a second touch during password verification, thereby greatly shortening the touch time, and enhancing the transaction security.
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公开(公告)号：EP4421718A1
公开(公告)日：2024-08-28
申请号：EP22882803.4
申请日：2022-10-17
发明人： MU, Changchun , DI, Gang , ZHAO, Xinyu , CUI, Peidong , YU, Peng , YAN, Jianli
摘要： Provided are a method and apparatus of verifying an anomalous digital currency transaction, relating to the technical field of computers. One specific embodiment of the method comprises: receiving, by a first terminal application, digital currency transaction information sent from a second terminal application; and executing, by a first terminal application, a corresponding anomaly determination operation according to the network connection state of a first operating institution back-end system, to determine that the digital currency transaction is anomalous, and the anomaly determination operation is one of the following two operations: an operation of searching a local double-spending information list for double-spending information corresponding to the digital currency transaction information and an operation of sending the digital currency transaction information to the first operating institution back-end system for verification.
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公开(公告)号：EP4365808A1
公开(公告)日：2024-05-08
申请号：EP22831652.7
申请日：2022-06-10
发明人： MU, Changchun , DI, Gang , QIAN, Youcai , DU, Jinzhao
CPC分类号： G06F21/64 , H04L9/50 , G06Q50/18 , G06F21/6254 , G06Q50/265 , G06Q2220/0020130101 , G06Q50/01 , G06Q40/02 , G06Q40/04 , G06Q30/06 , G06Q30/018
摘要： The present invention discloses a method and an apparatus for data verification, and relates to the field of computer technology. A implementation of the method includes: performing a first verification on data-to-be-verified, where the data-to-be-verified includes a first contract parameter, a identifier of the smart contract, and a first execution result; processing, after the first verification is passed, the first contract parameter to obtain second contract parameter, and executing a smart contract based on the second contract parameter to obtain a second execution result; and sending the second contract parameter, the identifier of the smart contract, and the second execution result to a consensus verification node for a consensus verification. According to the implementation, a mechanism of multi-node joint verification ensures the accuracy of the contract execution result, and avoids the situation that an operating agency system is in charge of both contract execution and contract verification, causing the low credibility of verification of the smart contract, thereby improving the credibility of contract execution and verification.
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公开(公告)号：EP4325411A1
公开(公告)日：2024-02-21
申请号：EP22787622.4
申请日：2022-04-15
发明人： MU, Changchun , DI, Gang , ZHAO, Xinyu , CUI, Peidong , WANG, Ting , BIAN, Yongchao
摘要： The disclosure relates to the technical field of computers. Disclosed are a digital currency management method, apparatus and system. A specific implementation of the method includes: sending one or more first digital currencies to a first currency management apparatus corresponding to a first client, where the one or more first digital currencies belong to one or more second currency management apparatuses different from the first currency management apparatus; and receiving a second digital currency, which is generated by the first currency management apparatus according to the one or more first digital currencies, where the denomination of the second digital currency is equal to the sum of denominations of the one or more first digital currencies. According to the implementation, rapid digital currency exchange may be realized on the basis of the fact that a client receives digital currencies respectively belonging to different digital currency management mechanisms, such that the liquidity of the digital currencies is improved.
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公开(公告)号：EP4293534A1
公开(公告)日：2023-12-20
申请号：EP22752346.1
申请日：2022-02-10
发明人： MU, Changchun , DI, Gang , QING, Sude , WANG, Yanhui , ZENG, Junwei , WU, Hao
摘要： The present disclosure relates to the technical field of computers, in particular to a method and apparatus for classifying a blockchain address. The method includes: transaction vectors are generated for transaction records corresponding to each blockchain address in a blockchain address set; a corresponding address vector is generated based on the transaction vectors corresponding to a blockchain address to be classified; and the address vector of the blockchain address to be classified is input into a classifier, so as to determine a class of the blockchain address to be classified. By means of the method, equal-length vectors representing the blockchain addresses can be obtained for classification by the classifier, transaction behaviors and association relationships of participating entities in a blockchain are effectively expressed. At the same time, the problem that feature engineering in traditional machine learning is prone to being affected by the external environment is also avoided, the classification accuracy is high, and a result is reliable; and the defects of error propagation, insufficient algorithm generalization, high requirements for hardware resources and time costs, etc. in existing methods are also overcome.
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6.发明公开
公开(公告)号：EP4459532A1
公开(公告)日：2024-11-06
申请号：EP22913953.0
申请日：2022-11-28
发明人： MU, Changchun , DI, Gang , LV, Yuan , ZHAO, Xinyu , ZHANG, Zhan , CUI, Peidong , ZHANG, Mingming , PENG, Meiling , CHEN, Song
IPC分类号： G06Q20/36
摘要： Disclosed are a digital currency transaction method, apparatus and electronic device, and a computer-readable medium, which relate to the technical field of digital currencies. The method includes: receiving a transaction request in response to a connection to a digital currency wallet, and acquiring feature negotiation information from a hardware carrier of the digital currency wallet; determining a transaction type on a basis of the feature negotiation information; acquiring a deduction amount corresponding to the transaction request, and generating an interoperability-based transaction request on a basis of the deduction amount and the feature negotiation information in response to determining that the transaction type is an interoperability-based transaction; sending the interoperability-based transaction request to an interoperability platform, so as to invoke a corresponding operator interface by means of the interoperability platform to send the interoperability-based transaction request to a corresponding digital currency operator; and receiving deduction information generated after the digital currency operator executes deduction on a basis of the interoperability-based transaction request, and outputting the deduction information. Limitations of capacity and an algorithm capability of front-end currency string storage are solved
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公开(公告)号：EP4421716A1
公开(公告)日：2024-08-28
申请号：EP22882650.9
申请日：2022-10-09
发明人： DI, Gang , MU, Changchun , CUI, Peidong , ZHAO, Xinyu , YAN, Jianli , ZHANG, Hongxue
IPC分类号： G06Q20/36
摘要： The provided are a digital currency payment method and apparatus, and relates to the field of computer technology. A specific implementation of the method includes: determining, by a payment device, transaction information of a current digital currency transaction based on an instruction sent by a collection device; invoking the transaction information through a local security chip, and sending the transaction information to the collection device for verification, where the transaction information includes a digital currency or identification information, and the identification information is used for identifying a wallet account or digital currency of the payment device; and updating, by the payment device, a digital currency balance after determining that the transaction information passes the verification.
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公开(公告)号：EP4390815A1
公开(公告)日：2024-06-26
申请号：EP22857506.4
申请日：2022-07-21
发明人： MU, Changchun , DI, Gang , QIAN, Youcai , DU, Jinzhao
摘要： A method and apparatus for executing smart contract, relating to the technical field of digital currencies. The method comprises: in response to an execution request of smart contract, calling an application layer contract to execute service logic processing, and constructing fund layer contract parameters required for executing a fund layer contract (S101); and according to the service logic and the fund layer contract parameters, calling the fund layer contract by the application layer contract to execute fund processing (S102). The method can separate application logic processing and fund processing in a business scenario, and contract responsibility is clear, and logic processing is simple; in addition, by calling between smart contracts, complex contracts are implemented by combining simple contracts, and thus the method is adapted to more business application scenarios.
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公开(公告)号：EP4350556A1
公开(公告)日：2024-04-10
申请号：EP22810634.0
申请日：2022-05-26
发明人： DI, Gang , GAO, Yang , HE, Mengwei , QIAN, Youcai , CHENG, Mingyu
摘要： The present invention relates to the technical field of computers, and discloses an information verification method and apparatus. A implementation of the method includes: constructing a constraint set of a zero-knowledge proof circuit, wherein the constraint set includes a range attribute verification condition; receiving a verifiable representation, using the verifiable representation as a secret input of the zero-knowledge proof circuit, and generating a personal information credential by means of the zero-knowledge proof circuit, wherein the verifiable representation is generated according to personal information to be verified; and in response to receiving decentralized identity information and a threshold value, which are sent by a verification system of a personal information credential, using the decentralized identity information and the threshold value as public inputs of the zero-knowledge proof circuit, and verifying, by the zero-knowledge proof circuit, whether the personal information credential satisfies the constraint set. By means of the implementation, sensitive information during user information verification can be protected while maintaining a decentralized identity system, thereby avoiding directly showing plaintext of real information of a user, and the verification efficiency is high.
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公开(公告)号：EP4328836A3
公开(公告)日：2024-03-06
申请号：EP23211407.4
申请日：2022-04-15
发明人： MU, Changchun , DI, Gang , ZHAO, Xinyu , CUI, Peidong , YAN, Jianli , YU, Peng , LIANG, Wei
摘要： A digital currency payment method and system, and an apparatus, a security chip, and an application method, which relate to the technical field of computers. The payment method includes: generating a transaction amount, or acquiring, by means of a communication connection between a first client and a second client, the transaction amount sent by the second client; and sending a payment request to the second client by means of the communication connection, where the payment request indicates a first digital currency corresponding to the transaction amount or a circulation identifier of the first digital currency, so as to enable a second currency management apparatus corresponding to the second client to cash a second digital currency corresponding to the transaction amount to a first currency management apparatus corresponding to the first client.
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