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公开(公告)号：EP4394681A1
公开(公告)日：2024-07-03
申请号：EP22874380.3
申请日：2022-07-22
发明人： CHENG, Zhuo , LI, Guangyao , PENG, Chenyi
IPC分类号： G06Q20/36
摘要： The present disclosure provides a method for opening a digital wallet, a wallet application terminal, and a system. A specific embodiment of the method comprises: acquiring, from a digital currency issuer agency server, a list of operating agency servers that can open a digital wallet and displaying the list of operating agency servers, so that a user selects a target operating agency server from the list of operating agency servers; communicating with the target operating agency server, so that the target operating agency server verifies the user; when the verification is passed, sending a digital wallet opening request to the digital currency issuer agency server, so that the digital currency issuer agency server notifies the target operating agency server to perform a digital wallet opening operation, or sending a digital wallet opening request to the target operating agency server, so that the target operating agency server performs a digital wallet opening operation. In the embodiment, a digital wallet opening entry is elevated to the digital currency issuer agency server or another operating agency server, so that the user does not need to use a digital wallet opening method provided by a licensed operating agency server and can open digital wallets of multiple operating agency servers on the same platform, thereby greatly reducing the threshold for a user to use a digital wallet and improving convenience.
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32.发明公开
公开(公告)号：EP4325418A1
公开(公告)日：2024-02-21
申请号：EP22787639.8
申请日：2022-04-15
发明人： MU, Changchun , DI, Gang , ZHAO, Xinyu , CUI, Peidong , ZOU, Jingdan , ZHANG, Hongxue , BIAN, Yongchao
摘要： The present disclosure relates to a method, terminal and system for splitting, verifying and managing a digital currency in a transaction, mainly relating to the technical field of computers. A specific implementation of the method includes: determining a first transaction request indicating a digital currency and first transaction information; generating second transaction information including a second transaction amount according to the first transaction information; respectively signing the first transaction information and the second transaction information by using a private key of a first terminal; generating a first trust chain according to the signed first transaction information and the digital currency, and generating a second trust chain according to the signed second transaction information and the digital currency; and sending the first trust chain to a second terminal, so that the second terminal and the first terminal achieve, according to the first trust chain, an offline transaction corresponding to the first transaction amount included in the first transaction information. The implementation improves the security of the offline transaction while facilitating the use of the digital currency in performing the offline transaction.
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公开(公告)号：EP4325412A1
公开(公告)日：2024-02-21
申请号：EP22787654.7
申请日：2022-04-15
发明人： MU, Changchun , DI, Gang , ZHAO, Xinyu , CUI, Peidong , YAN, Jianli , YU, Peng , LIANG, Wei
IPC分类号： G06Q20/36
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. By means of the method, online payment of a digital currency is realized on the basis of a communication connection between different clients, such that the method is convenient and fast.
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34.发明公开
公开(公告)号：EP4318355A1
公开(公告)日：2024-02-07
申请号：EP22778629.0
申请日：2022-03-21
发明人： LIANG, Wei , XU, Kefeng , BIAN, Yongchao
摘要： Methods and apparatuses for generating, verifying and storing a transaction voucher, devices and a system are provided. The method includes: in response to a received transaction request, chain structure data of a digital currency is acquired, the chain structure data including a first currency string (S101); and a transaction voucher corresponding to a denomination of a current transaction is generated based on the chain structure data, the transaction voucher including a second currency string of a corresponding denomination and a second sub-chain, and the second sub-chain including current transaction information of the second currency string (S102). On the one hand, a pay warrant is provided for a transaction, so that the transaction is traceable, and the security of the transaction is ensured. On the other hand, the reading and storage efficiency of transaction data can be improved, and the transaction efficiency and the user experience can also be improved.
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公开(公告)号：EP4304131A1
公开(公告)日：2024-01-10
申请号：EP22762599.3
申请日：2022-03-03
发明人： MU, Changchun , DI, Gang , QIAN, Youcai , CHEN, Qingjie , DU, Jinzhao
摘要： The present disclosure mainly relates to the technical field of computers, and in particular to a method and apparatus for generating a random number in a blockchain. In a specific embodiment, the method includes: a first random number and a first digest value of the first random number are locally generated by a first node in a blockchain; the first node submits the first digest value to a smart contract; the smart contract broadcasts a first service, so that at least one blockchain node submits participation information about the first service; the smart contract determins a second node from the at least one blockchain node based on the order of submitting the participation information; when the first service ends, the first node submits the first random number to the smart contract; when the smart contract verifies that the first random number corresponds to the first digest value, the smart contract generates a second random number based on a second digest value of the second node and the first random number; and a second service is started based on the second random number. The embodiment improves the reliability of the random number, thereby ensuring the fairness of service results.
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公开(公告)号：EP4180984A1
公开(公告)日：2023-05-17
申请号：EP21852328.0
申请日：2021-08-04
发明人： MU, Changchun , DI, Gang , QIAN, Youcai , QING, Sude , CHEN, Qingjie , DU, Jinzhao
IPC分类号： G06F16/176
摘要： The disclosure relates to a method, apparatus and system for sharing files, and mainly relates to the technical field of computers. One specific implementation mode of the method comprises: acquiring files to be shared, and uploading, on a blockchain, formed compressed file packages; generating by calculation a root hash value in accordance with file names of the compressed packages and hash values thereof; and acquiring respective compressed file packages in a blockchain in accordance with the root hash value. The technical problem of an excessive burden of network resources caused by a large number of files is partially overcome by compressing a plurality of files into compressed file packages, and the file uploading and sharing efficiencies are increased by uploading the respective compressed file packages on the blockchain concurrently; the files are stored or updated, and the root hash value is shared by using data structures such as a binary tree structure, a multi-way tree structure, and a dynamic tree structure to acquire, by the root hash value and respective node hash values, the shared files, which improves the security of the files.
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