WO2020224489A1 - Procédé de partage de données bancaires basé sur une chaîne de blocs et appareil associé - Google Patents

Procédé de partage de données bancaires basé sur une chaîne de blocs et appareil associé Download PDF

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WO2020224489A1
WO2020224489A1 PCT/CN2020/087558 CN2020087558W WO2020224489A1 WO 2020224489 A1 WO2020224489 A1 WO 2020224489A1 CN 2020087558 W CN2020087558 W CN 2020087558W WO 2020224489 A1 WO2020224489 A1 WO 2020224489A1
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block
key
transaction data
transaction
data
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PCT/CN2020/087558
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English (en)
Chinese (zh)
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陈璐伟
郭鸿程
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深圳壹账通智能科技有限公司
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/389—Keeping log of transactions for guaranteeing non-repudiation of a transaction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
    • G06Q40/02—Banking, e.g. interest calculation or account maintenance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H04L63/0435—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply symmetric encryption, i.e. same key used for encryption and decryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H04L63/0823—Network architectures or network communication protocols for network security for authentication of entities using certificates
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/008—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols involving homomorphic encryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3236—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using cryptographic hash functions

Definitions

  • This application relates to the field of blockchain technology, and in particular to a bank data sharing method and related equipment based on blockchain.
  • Small and medium commercial banks refer to national commercial banks, regional joint-stock commercial banks and city commercial banks other than the five major commercial banks of Industry, Agriculture, China, Construction, and Bank of Communications. These small and medium-sized banks have flexible market sensitivity and high financial service efficiency, support the development of a large number of small and medium-sized enterprises and the private economy, and promote economic growth. The second is to promote the marketization of my country's financial industry through the reform and innovation of the financial system. .
  • a blockchain-based bank data sharing method and related equipment are provided.
  • a method for sharing bank data based on blockchain includes the following steps:
  • Receive a data sharing request sent by any bank terminal on the blockchain send the data sharing request to each of the blocks, receive the ciphertext transaction data generated by each of the blocks, and transfer all The ciphertext transaction data is decrypted and sent to the bank terminal that issued the data sharing request;
  • obtaining the block key of any block on the blockchain, and encrypting the transaction data generated in the block according to the block key to obtain the ciphertext transaction data specifically includes:
  • An exclusive OR operation is performed on the hash result and the symmetric encryption result to obtain a final key, and the transaction data in the block is encrypted using the final key to obtain the ciphertext transaction data.
  • a bank data sharing device based on blockchain includes the following modules:
  • the block establishment module is configured to establish a consensus node between multiple bank terminals, establish several blocks according to the transaction results of the consensus node, and connect the several blocks to form a blockchain;
  • the data encryption module is configured to obtain a block key of any block on the blockchain, and encrypt transaction data generated in the block according to the block key to obtain ciphertext transaction data;
  • the data sharing module is configured to receive a data sharing request sent by any bank terminal on the blockchain, send the data sharing request to each block, and receive the secret generated by each block Text transaction data, decrypt the ciphertext transaction data and send it to the bank terminal that issued the data sharing request;
  • the transaction package generation module includes the following modules:
  • the original key module is configured to obtain the digital certificate included in the transaction data of any block on the blockchain, and arrange the characters in the digital certificate in reverse order to generate the original key of the block;
  • the homomorphic encryption module is configured to obtain the original key vector of the original key, and apply a homomorphic encryption algorithm to encrypt the original key vector to obtain a homomorphic encryption vector;
  • the symmetric encryption module is configured to apply a hash key algorithm to encrypt the random numbers in the homomorphic key vector to obtain a hash result, and apply the symmetric encryption algorithm to encrypt the ciphertext data in the homomorphic encryption vector Then get the symmetric encryption result;
  • the ciphertext obtaining module is configured to perform an exclusive OR operation on the hash result and the symmetric encryption result to obtain a final key, and apply the final key to encrypt the transaction data in the block to obtain the Encrypted transaction data.
  • a computer device includes a memory and a processor.
  • the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the processor executes the steps of the following method:
  • Receive a data sharing request sent by any bank terminal on the blockchain send the data sharing request to each of the blocks, receive the ciphertext transaction data generated by each of the blocks, and transfer all The ciphertext transaction data is decrypted and sent to the bank terminal that issued the data sharing request;
  • obtaining the block key of any block on the blockchain, and encrypting the transaction data generated in the block according to the block key to obtain the ciphertext transaction data specifically includes:
  • An exclusive OR operation is performed on the hash result and the symmetric encryption result to obtain a final key, and the transaction data in the block is encrypted using the final key to obtain the ciphertext transaction data.
  • a storage medium storing computer-readable instructions.
  • the one or more processors execute the steps of the following method:
  • Receive a data sharing request sent by any bank terminal on the blockchain send the data sharing request to each of the blocks, receive the ciphertext transaction data generated by each of the blocks, and transfer all The ciphertext transaction data is decrypted and sent to the bank terminal that issued the data sharing request;
  • obtaining the block key of any block on the blockchain, and encrypting the transaction data generated in the block according to the block key to obtain the ciphertext transaction data specifically includes:
  • An exclusive OR operation is performed on the hash result and the symmetric encryption result to obtain a final key, and the transaction data in the block is encrypted using the final key to obtain the ciphertext transaction data.
  • Figure 1 is an overall flow chart of a method for sharing bank data based on blockchain in one or more embodiments of the application;
  • FIG. 2 is a schematic diagram of a block establishment process in a bank data sharing method based on blockchain in one or more embodiments of the present application;
  • FIG. 3 is a schematic diagram of a data encryption process in a bank data sharing method based on blockchain in one or more embodiments of the present application;
  • FIG. 4 is a schematic diagram of a data sharing process in a bank data sharing method based on blockchain in one or more embodiments of the present application;
  • Fig. 5 is a structural diagram of a bank data sharing device based on blockchain in one or more embodiments of the application.
  • FIG. 1 is an overall flowchart of a method for sharing bank data based on blockchain according to an embodiment of the application. As shown in Figure 1, a method for sharing bank data based on blockchain includes the following steps:
  • the identity of the bank terminal needs to be verified, that is, establishing a consensus node between any two bank terminals in advance requires whether the bank transaction data is relevant, For example, a transaction is carried out between bank A terminal and bank B terminal, then a consensus node will be established between bank A terminal and bank B terminal.
  • S2 Obtain a block key of any block on the blockchain, and encrypt transaction data generated in the block according to the block key to obtain ciphertext transaction data;
  • the block key is assigned when the block is created, and its assignment rule can be based on the time when the block is generated, that is, the time is entered as an independent variable into the random function to obtain a number, and then according to this
  • the serial number extracts the key corresponding to the serial number from the database.
  • the bank terminal after receiving the data sharing request sent by the bank terminal, it is necessary to judge whether the transaction data corresponding to the data sharing request can be shared according to the smart contract, and then send the data sharing request to each Block. If the ciphertext transaction data generated in each block is not decrypted successfully, it is necessary to send an instruction to resend the data sharing request to the bank terminal that issued the data sharing request.
  • the S2 obtains the block key of any block on the blockchain, and encrypts the transaction data generated in the block according to the block key to obtain the ciphertext Transaction data, as shown in Figure 3, can be implemented as follows:
  • S201 Obtain a digital certificate included in the transaction data of any block on the blockchain, and arrange the characters in the digital certificate in reverse order to generate the original key of the block;
  • the transaction time and transaction type of the transaction data in the block are obtained, and the smart contract list corresponding to the transaction time and the transaction type is extracted after querying the smart contract list, and the smart contract list is stored in the server; Wherein, an index row is set in the smart contract list.
  • the structured query language SQL can be used to traverse the index row, extract the smart contract corresponding to the transaction time from the index row, and then according to the transaction Type
  • the selected smart contracts are screened to obtain the smart contract corresponding to the transaction data; the type of transaction mainly refers to payment in batches, one-time payment, etc.
  • Send a digital certificate acquisition request to the smart contract developer receive feedback information from the smart contract developer, extract the digital certificate contained in the feedback information, and arrange the characters in the digital certificate in reverse order to generate the The original key of the block.
  • the feedback information is segmented first, that is, the characteristic characters in the feedback information are obtained, which are generally ":", """, etc., Then, the feedback information is divided into a main part and an accessory part according to the characteristic characters, and the main part is the digital certificate.
  • S202 Obtain an original key vector of the original key, and apply a homomorphic encryption algorithm to encrypt the original key vector to obtain a homomorphic encryption vector;
  • the homomorphic encryption algorithm used may be an additive homomorphic encryption algorithm or a multiplicative homomorphic algorithm.
  • symmetric key encryption is also called private key encryption or shared key encryption, that is, both parties sending and receiving data must use the same key to encrypt and decrypt the plaintext.
  • Symmetric key encryption algorithms mainly include: DES, 3DES, IDEA, FEAL, BLOWFISH, etc.
  • the hash key is calculated by using a hash function, and it has the following characteristics: the original password is calculated by the hash function to obtain a hash value; changing the original password, the hash value calculated by the hash function will also correspond Change; the same password has the same hash value; the hash function is one-way and irreversible.
  • the SMS4 encryption algorithm when encrypting the random number, can also be used for encryption.
  • the plaintext to be encrypted and the key in the round key sequence are sequentially calculated by round function iteration, as follows :
  • the plaintext input is (X 0 , X 1 , X 2 , X 3 ) ⁇ (Z 2 32 ) 4
  • the ciphertext output is (Y 0 , Y 1 , Y 2 , Y 3 ) ⁇ (Z 2 32 ) 4
  • S204 Perform an exclusive OR operation on the hash result and the symmetric encryption result to obtain a final key, and use the final key to encrypt transaction data in the block to obtain the ciphertext transaction data.
  • FIG. 2 is a schematic diagram of the block establishment process in a method for sharing bank data based on blockchain in one of the embodiments of the application.
  • the S1 establishes a consensus node between multiple bank terminals.
  • a number of blocks are established according to the transaction results of the consensus node, and a block chain is formed after connecting the several blocks, including:
  • any bank terminal when any bank terminal generates transaction data, information such as the name or feature code of the bank terminal will be written in the transaction data to facilitate data search when the transaction data is counted in the future.
  • the same feature code can be used in different bank terminals according to a prior agreement. For example, Bank A and Bank B pre-share data, then Bank A and Bank B use the same feature code. Searching whether different bank terminals have the same feature code can determine which bank terminals to establish consensus nodes.
  • transaction data when multiple transaction data are packaged, they can be packaged according to the time when the transaction data is generated, that is, transaction data generated within a certain period of time is packaged into a transaction package.
  • a multi-threaded manner can be used to process a large number of transaction data at the same time, which can effectively reduce the inability to generate real-time transaction results caused by high concurrency.
  • blocks can be established in time, which facilitates instant data sharing between banks.
  • FIG. 4 is a schematic diagram of the data sharing process in a blockchain-based bank data sharing method in one of the embodiments of the application.
  • the S3 receives any one of the data on the blockchain A data sharing request issued by a bank terminal, sending the data sharing request to each of the blocks, receiving the ciphertext transaction data generated by each of the blocks, decrypting the ciphertext transaction data and sending it to the Bank terminals for data sharing requests, including:
  • S301 Receive a data sharing request sent by any of the bank terminals, obtain the IP address of the bank terminal according to the data sharing request, and determine the block to be shared where the bank terminal is located according to the IP address;
  • historical data of the frequency of transaction data generation in the block is acquired, and the time node for collecting transaction data in the block is set according to the historical data; when historical data is collected, each bank in the block The terminal performs number marking, and records the historical data generated by each bank terminal through the tracking mark.
  • the time node When the time node arrives, collect real-time transaction data generated by each bank terminal in the block, and extract data sharing request information from the real-time transaction data. Wherein, the historical data of the normal transaction data length is obtained, and a normal transaction data threshold is set according to the historical data. If the length of transaction data sent by any bank terminal is found to be greater than the normal transaction data threshold, then Perform keyword query, where the keyword can be "share", if the transaction data sent by the bank terminal contains the keyword, then extract the data sharing request information, if there is no such keyword, send a data exception Information to the consensus node.
  • S302 Obtain a block key to be shared of the block to be shared, and generate a decrypted message after decrypting the block key to be shared;
  • the block key obtaining instruction when obtaining the block key to be shared of the block to be shared, may be sent to the block to be shared first, and then the feedback of the block to be shared is received Information, if there is the block key to be shared in the feedback information, use it for decryption, if there is no block key to be shared, you need to resend the key acquisition instruction or verify the key Whether the fetch instruction is correct.
  • the same key can be used to encrypt the transaction data to be shared during encryption, so that one key can be used to decrypt data in different blocks during decryption. Therefore, for blocks that do not include the block key to be shared in the feedback information, the information reflected is that these blocks do not agree to data sharing.
  • the S101 obtains a plurality of existing transaction data generated by the bank terminal, extracts the characteristic identifier of each bank terminal from the existing transaction data, and displays the characteristic identifier of each bank terminal according to the characteristic identifier.
  • the establishment of several consensus nodes between the bank terminals includes:
  • the IP address of the bank terminal is obtained
  • the DNS resolution code is obtained after DNS resolution of the IP address
  • the physical location of the bank terminal is determined according to the last three digits in the DNS resolution code , Number the bank terminal according to the physical location, and mark the feedback information with the number.
  • the DNS resolution is to correspond the IP address and the DNS resolution code list, and query the DNS resolution code corresponding to the IP address from the DNS resolution code category.
  • characteristic characters mainly refer to judgmental words such as "agree” and "negative".
  • Extract the characteristic identifier sent by the bank terminal and establish a consensus node between bank terminals with the same characteristic identifier.
  • the transaction data can be divided into several sub-blocks, and the separator is a punctuation mark, such as ",”, ",", “:”, etc., and then the query is
  • the text information in each sub-block is packaged into a text group, and the text similarity algorithm is applied to obtain the core words in the text group, and a consensus node is established between the banks corresponding to transaction data with the same core words.
  • the consensus is The content is the core word.
  • the step S102 obtaining multiple transaction data from any of the consensus nodes, and packaging the multiple transaction data to generate a transaction package, includes:
  • transaction complexity refers to the number of terminals involved in the transaction, the number of steps involved, and the amount of transaction data.
  • Transaction complexity can be divided into multiple levels according to the transaction data volume. For example, the data volume of simple transactions is less than 100, the data volume of general transactions is 101-1000, the data volume of more complex transactions is 1001-5000, and the data volume of complex transactions is less than 100. The amount of data is greater than 5000 and so on.
  • the performance index of the server in this embodiment mainly refers to the data processing capacity of the server, that is, the upper limit of processing data in a unit time. Different transactions correspond to different servers, so that each server can fully function. .
  • the multiple transaction data are packaged into the transaction package according to the correspondence between the transaction complexity and the performance index.
  • the performance index includes m threads, and m is a positive integer
  • the step S302 obtaining the block key to be shared of the block to be shared, and decrypting the block key to be shared to generate a decrypted message, includes:
  • a hash key there are two commonly used encryption methods, a hash key and a symmetric key.
  • the original password is calculated by a hash function to obtain a hash value. Changing the original password will also change the hash value, so it is often used
  • the hash value is used as a method of data encryption.
  • the exclusive OR operation is also called a half-add operation, and its algorithm is equivalent to binary addition without carry: In binary, 1 represents true and 0 represents false, then the exclusive OR algorithm is: (The same is 0, but the difference is 1). These rules are the same as addition, except that there is no carry, so XOR is often regarded as non-carry addition.
  • the encrypted data is effectively decrypted through the hash encryption algorithm and the symmetric encryption algorithm, thereby ensuring the accuracy of the decrypted message.
  • a bank data sharing device based on blockchain is proposed, as shown in Figure 5, including the following modules:
  • the block establishment module 51 is configured to establish a consensus node between multiple bank terminals, establish a number of blocks according to the transaction results of the consensus node, and connect the blocks to form a blockchain;
  • the data encryption module 52 is configured to obtain a block key of any block on the blockchain, and encrypt transaction data generated in the block according to the block key to obtain ciphertext transaction data ;
  • the data sharing module 53 is configured to receive a data sharing request sent by any bank terminal on the blockchain, send the data sharing request to each of the blocks, and receive the data generated by each of the blocks. Ciphertext transaction data, decrypting the ciphertext transaction data and sending it to the bank terminal that issued the data sharing request;
  • the transaction package generation module includes the following modules:
  • the original key module is configured to obtain the digital certificate included in the transaction data of any block on the blockchain, and arrange the characters in the digital certificate in reverse order to generate the original key of the block;
  • the homomorphic encryption module is configured to obtain the original key vector of the original key, and apply a homomorphic encryption algorithm to encrypt the original key vector to obtain a homomorphic encryption vector;
  • the symmetric encryption module is configured to apply a hash key algorithm to encrypt the random numbers in the homomorphic key vector to obtain a hash result, and apply the symmetric encryption algorithm to encrypt the ciphertext data in the homomorphic encryption vector Then get the symmetric encryption result;
  • the ciphertext obtaining module is configured to perform an exclusive OR operation on the hash result and the symmetric encryption result to obtain a final key, and apply the final key to encrypt the transaction data in the block to obtain the Encrypted transaction data.
  • the block establishment module includes:
  • the establishment of a consensus node module is configured to obtain existing transaction data generated by multiple bank terminals, extract the characteristic identifier of each bank terminal from the existing transaction data, and select the characteristic identifier in each bank according to the characteristic identifier. Establishing a number of said consensus nodes between terminals;
  • the transaction package generation module is configured to obtain multiple transaction data from any of the consensus nodes, and generate a transaction package after packaging the multiple transaction data;
  • the block chain generation module is set to start multi-threading to perform parallel processing on the transaction data in several said transaction packages to obtain several transaction results. After aggregating consensus nodes with the same transaction results, a block is generated to connect several exchanges. After the block, the block chain is formed.
  • a computer device in one of the embodiments, includes a memory and a processor.
  • the memory stores computer readable instructions.
  • the processor executes the foregoing implementations. The steps of the blockchain-based bank data sharing method in the example.
  • a storage medium storing computer-readable instructions.
  • the computer-readable instructions are executed by one or more processors, the one or more processors execute the steps in the above embodiments.
  • the storage medium may be a non-volatile storage medium.
  • the program can be stored in a computer-readable storage medium, and the storage medium can include: Read only memory (ROM, Read Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, etc.

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Abstract

La présente invention se rapporte au domaine technique des chaînes de blocs, et concerne plus particulièrement un procédé de partage de données bancaires basé sur une chaîne de blocs et un appareil associé. Le procédé de partage de données bancaires basé sur une chaîne de blocs consiste : à créer des nœuds de consensus entre de multiples terminaux bancaires, à créer une pluralité de blocs selon les résultats de transaction des nœuds de consensus, et à connecter la pluralité de blocs de manière à former une chaîne de blocs ; à acquérir une clé de bloc de n'importe quel bloc dans la chaîne de blocs, à chiffrer, selon la clé de bloc, des données de transaction générées dans ledit bloc de manière à obtenir des données de transaction de cryptogramme ; et à recevoir une demande de partage de données envoyée par l'un quelconque des terminaux bancaires sur la chaîne de blocs, à envoyer la demande de partage de données aux blocs respectifs, à recevoir des données de transaction de cryptogramme générées par les blocs respectifs, à déchiffrer les données de transaction de cryptogramme, et à envoyer les données déchiffrées au terminal bancaire envoyant la demande de partage de données. La présente invention assure un partage de données efficace entre différents terminaux bancaires, ce qui permet d'améliorer la compétitivité des banques de petite et moyenne tailles dans des activités financières.
PCT/CN2020/087558 2019-05-07 2020-04-28 Procédé de partage de données bancaires basé sur une chaîne de blocs et appareil associé WO2020224489A1 (fr)

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CN110224808B (zh) * 2019-05-07 2022-10-04 深圳壹账通智能科技有限公司 基于区块链的银行数据共享方法、装置、计算机设备和存储介质
CN113497818A (zh) * 2020-04-01 2021-10-12 深圳Tcl数字技术有限公司 一种数据共享方法以及共享系统
CN111862486A (zh) * 2020-07-22 2020-10-30 中国工商银行股份有限公司 基于联盟链的制卡方法、装置及系统
CN113168652B (zh) 2020-08-03 2022-04-15 支付宝(杭州)信息技术有限公司 区块链交易处理系统和方法
CN112261082B (zh) * 2020-09-21 2021-11-19 中国科学院计算技术研究所 基于区块链和安全多方计算的被动dns数据共享方法及系统
CN114422230B (zh) * 2022-01-17 2023-04-07 上海数喆数据科技有限公司 一种基于数据加密的信息传输系统
CN114900348B (zh) * 2022-04-28 2024-01-30 福建福链科技有限公司 一种区块链传感器数据验证的方法及终端

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150379510A1 (en) * 2012-07-10 2015-12-31 Stanley Benjamin Smith Method and system to use a block chain infrastructure and Smart Contracts to monetize data transactions involving changes to data included into a data supply chain.
CN107332658A (zh) * 2017-08-11 2017-11-07 浙江赛佳控股有限公司 基于链式区块链技术的接口实现方法及装置
CN109462472A (zh) * 2017-09-06 2019-03-12 阿里巴巴集团控股有限公司 数据加密和解密的方法、装置和系统
CN109639753A (zh) * 2018-10-26 2019-04-16 众安信息技术服务有限公司 一种基于区块链的数据共享方法及系统
CN110224808A (zh) * 2019-05-07 2019-09-10 深圳壹账通智能科技有限公司 基于区块链的银行数据共享方法及相关设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2017100426A4 (en) * 2017-04-18 2017-06-15 McAlister, Gary MR New Islamic Banking Sharia Compliant Blockchain Innovation Patent that has no riba, usury or interest component for but not limited to savings, deposit, ethical loans, finance, stock share bond, Private Placement Programs, Digitally discover new mine deposits to franchise & new monetary system using blockchains POS proof of stake/secondary mining mine discovery process of assets and commodities for entities such as but not limited to Governments, treasuries, central banks, banks, financial institutions, monetary funds, judicial entities, profit-sharing blockchain franchise investments PSBFI's.
CN108898475B (zh) * 2018-05-08 2021-04-06 众安信息技术服务有限公司 基于属性加密的联盟区块链实现信贷方法及系统
CN108876591A (zh) * 2018-05-28 2018-11-23 江苏荣泽信息科技股份有限公司 基于区块链的银行间同业现金流通管理系统
CN109242476A (zh) * 2018-09-14 2019-01-18 比比物流有限公司 虚拟银行卡区块链系统及其银行节点、网络支付方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150379510A1 (en) * 2012-07-10 2015-12-31 Stanley Benjamin Smith Method and system to use a block chain infrastructure and Smart Contracts to monetize data transactions involving changes to data included into a data supply chain.
CN107332658A (zh) * 2017-08-11 2017-11-07 浙江赛佳控股有限公司 基于链式区块链技术的接口实现方法及装置
CN109462472A (zh) * 2017-09-06 2019-03-12 阿里巴巴集团控股有限公司 数据加密和解密的方法、装置和系统
CN109639753A (zh) * 2018-10-26 2019-04-16 众安信息技术服务有限公司 一种基于区块链的数据共享方法及系统
CN110224808A (zh) * 2019-05-07 2019-09-10 深圳壹账通智能科技有限公司 基于区块链的银行数据共享方法及相关设备

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