WO2022100381A1 - 基于区块链的众筹联合账户创建方法、设备及存储介质 - Google Patents
基于区块链的众筹联合账户创建方法、设备及存储介质 Download PDFInfo
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- WO2022100381A1 WO2022100381A1 PCT/CN2021/124732 CN2021124732W WO2022100381A1 WO 2022100381 A1 WO2022100381 A1 WO 2022100381A1 CN 2021124732 W CN2021124732 W CN 2021124732W WO 2022100381 A1 WO2022100381 A1 WO 2022100381A1
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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
- G06Q20/04—Payment circuits
- G06Q20/06—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme
- G06Q20/065—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme using e-cash
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
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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
- G06Q20/08—Payment architectures
- G06Q20/10—Payment architectures specially adapted for electronic funds transfer [EFT] systems; specially adapted for home banking systems
- G06Q20/102—Bill distribution or payments
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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
- G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
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- G—PHYSICS
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- 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
- G06Q40/04—Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
Definitions
- the present application belongs to the field of blockchain technology, and specifically relates to a method, device and storage medium for creating a joint account for crowdfunding based on blockchain.
- the inventor realizes that at present, many families who have an accident or a major disease and urgently need large medical expenses use crowdfunding to raise the cost.
- Kind people in the society can donate through the crowdfunding platform, but the donor cannot know after the donation.
- the use of crowdfunding funds is not well supervised, resulting in some people using this loophole to compile false injury or disease information to defraud crowdfunding funds.
- This application proposes a method, device and storage medium for creating a crowdfunding joint account based on blockchain.
- This application applies the joint account to the crowdfunding scenario, so that all donors become the joint holders of the crowdfunding joint account, thereby It can make the donors aware of the use of the donations, so that the donors can be called the supervisors of the use of the donated funds, and avoid the situation of fraudulent donations by using the crowdfunding platform.
- the embodiment of the first aspect of the present application proposes a blockchain-based crowdfunding joint account transaction processing method, which is applied to a blockchain node device, including: receiving an account creation request sent by a crowdfunding creator's terminal, the account The creation request includes the crowdfunding joint account address, crowdfunding information, the user address of the crowdfunding creator and the smart contract; assign a contract address to the smart contract; combine the crowdfunding joint account address, the crowdfunding information, the The user address of the crowdfunding creator, the contract address and the smart contract are stored in the blockchain node device; the donation information sent by the crowdfunding platform is received, and the donation information includes the crowdfunding information, the donor's user address and Donation amount; send the contract address of the crowdfunding joint account corresponding to the current crowdfunding task to the donor according to the donation information.
- An embodiment of the second aspect of the present application provides a blockchain node device, comprising: a receiving module configured to receive an account creation request sent by a terminal of a crowdfunding creator, where the account creation request includes the crowdfunding joint account address, The crowdfunding information, the user address of the crowdfunding creator and the smart contract; the allocation module is used to allocate the contract address to the smart contract; the storage module is used to store the crowdfunding joint account address, the crowdfunding information, all the The user address of the crowdfunding creator, the contract address and the smart contract are stored in the blockchain node device; the receiving module is used to receive donation information sent by the crowdfunding platform, and the donation information includes crowdfunding information, the user address of the donor and the donation amount; the sending module is used to send the contract address of the crowdfunding joint account corresponding to the current crowdfunding task to the donor according to the donation information.
- An embodiment of the third aspect of the present application provides a computer device, including a memory and a processor, where computer-readable instructions are stored in the memory, and when the computer-readable instructions are executed by the processor, cause the processing Execute the above block chain-based crowdfunding joint account creation method, the method includes: receiving an account creation request sent by the crowdfunding creator's terminal, the account creation request including the crowdfunding joint account address, crowdfunding information, crowdfunding User address and smart contract of the creator; assign a contract address to the smart contract; combine the crowdfunding joint account address, the crowdfunding information, the user address of the crowdfunding creator, the contract address and the The smart contract is stored in the blockchain node device; receives the donation information sent by the crowdfunding platform, the donation information includes the crowdfunding information, the user address of the donor and the donation amount; according to the donation information, the current crowdfunding task corresponds to the The contract address of the crowdfunding joint account is sent to said donor.
- Embodiments of the fourth aspect of the present application provide a storage medium storing computer-readable instructions, and when the computer-readable instructions are executed by one or more processors, cause the one or more processors to execute the above block-based instructions
- a method for creating a crowdfunding joint account of a chain includes: receiving an account creation request sent by a terminal of a crowdfunding creator, where the account creation request includes a crowdfunding joint account address, crowdfunding information, the user address of the crowdfunding creator and smart contract; assign a contract address to the smart contract; store the crowdfunding joint account address, the crowdfunding information, the user address of the crowdfunding creator, the contract address and the smart contract in the block In the chain node device; receive the donation information sent by the crowdfunding platform, the donation information includes the crowdfunding information, the user address of the donor and the donation amount; according to the donation information, the contract of the crowdfunding joint account corresponding to the current crowdfunding task address to said donor.
- the embodiment of the present application applies the joint account to the crowdfunding scenario, so that the donor becomes the supervisor of the use of the donated funds, and avoids the occurrence of fraudulent donations by someone using the crowdfunding platform.
- FIG. 1 shows a schematic flowchart of a method for creating a joint account for crowdfunding based on blockchain provided by an embodiment of the present application.
- FIG. 2 shows a schematic structural diagram of a blockchain node device provided by an embodiment of the present application.
- FIG. 3 shows a schematic structural diagram of a computer device provided by an embodiment of the present application.
- FIG. 4 shows a schematic diagram of a storage medium provided by an embodiment of the present application.
- This application may relate to the field of artificial intelligence technology, for example, relevant data may be acquired and processed based on artificial intelligence technology.
- the technical solution of the present application can be applied to various joint account creation scenarios, such as joint account creation scenarios in digital medicine.
- the crowdfunding platform involved in this application may be a medical platform, a third-party platform or other platforms, and the crowdfunding platform may include various medical data.
- the medical data may include one or more of personal health records, prescriptions, examination reports, and medical insurance business data.
- Some embodiments of the present application provide a method for creating a crowdfunding joint account based on blockchain.
- a user creates a crowdfunding task on a crowdfunding platform, he requests to create a crowdfunding joint account in the blockchain system, and generates The smart contract corresponding to the crowdfunding joint account, in which the transfer logic of the crowdfunding joint account is agreed.
- the smart contract can be stipulated in the smart contract that all co-holders need to be notified when transferring funds from the crowdfunding joint account, and it can be agreed that only the crowdfunding creator can transfer funds from the crowdfunding joint account, and donors shall not transfer funds from the crowdfunding joint account.
- the joint account transfers money, and the accounts that agree to receive transfers from the crowdfunding joint account (such as the account of the medical structure), etc.
- the crowdfunding creator can initiate an account creation request to the blockchain node device through his terminal, and carry the crowdfunding information and the user of the crowdfunding creator in the account creation request.
- address crowdfunding joint account address and smart contract.
- the crowdfunding joint account address may be the account number of the crowdfunding joint account, and the crowdfunding information includes a description of the reason for the crowdfunding, a description of the use of the funds, and the personal information of the crowdfunding creator.
- the blockchain node device receives the account creation request, and creates the crowdfunding joint account in the blockchain system through the following steps 101-103.
- Step 101 Receive an account creation request sent by the crowdfunding creator's terminal, where the account creation request includes the crowdfunding joint account address, crowdfunding information, the crowdfunding creator's user address, and a smart contract.
- Step 102 Assign a contract address to the smart contract.
- the user address of the crowdfunding creator is obtained from the account creation request.
- the user address and the crowdfunding joint account address are encoded by a preset encoding algorithm.
- the preset coding algorithm can be RLP (Recursive Length Prefix, recursive length prefix).
- the encoded string is hashed by a preset hash algorithm, and the preset hash algorithm can be SHA3 (Secure Hah Algorithm 3, the third generation of secure hashing algorithms). Eliminate the first preset number of characters in the string obtained by the hash operation, and determine the remaining string as the contract address corresponding to the smart contract.
- the preset number can be 12 or 14, etc.
- Step 103 Store the crowdfunding joint account address, crowdfunding information, the user address of the crowdfunding creator, the contract address and the smart contract in the blockchain node device.
- Step 104 Receive donation information sent by the crowdfunding platform, where the donation information includes crowdfunding information, the user address of the donor and the donation amount.
- the crowdfunding platform When a donor makes a donation for the crowdfunding task through the crowdfunding platform, the crowdfunding platform obtains the user address and donation amount of the donor, and sends the donation information to the blockchain node device. User address and donation amount.
- Step 105 Send the contract address of the crowdfunding joint account corresponding to the current crowdfunding task to the donor according to the donation information.
- the contract address of the crowdfunding joint account corresponding to the crowdfunding information is obtained from the block stored by the blockchain node device. According to the user address of the donor included in the donation information, the obtained contract address is sent to the donor.
- the donor's terminal After receiving the contract address, the donor's terminal stores the contract address.
- the management of the crowdfunding joint account is realized in the blockchain, so that the crowdfunding creator and each donor can use their private key and the contract address of the crowdfunding joint account without sharing the private key.
- the management of the joint account Therefore, all the donors become the co-holders of the crowdfunding joint account, and the donors can monitor the use of the funds in the crowdfunding joint account.
- the management of the crowdfunding joint account can be realized in the blockchain, which can ensure the authenticity and reliability of the donation records and the use records of the donations in the crowdfunding joint account, avoid account fraud, and multiple Co-holders use their own private keys without sharing private keys, which can improve the security of crowdfunding joint accounts.
- the blockchain node device also generates a new block according to the received donation information. Add the new block to the blockchain corresponding to the current crowdfunding task. Based on the traceability and non-tampering characteristics of the blockchain, the block containing the donation information is stored in the blockchain node device, which can ensure the authenticity of the donation record of the crowdfunding joint account and avoid fraudulent donation information.
- the following steps 106-108 can be used to perform transaction processing on the crowdfunding joint account .
- Step 106 Receive a transfer request from the crowdfunding joint account sent by the crowdfunding creator, where the transfer request includes the public key and the transfer information ciphertext signed with the private key corresponding to the public key.
- the terminal When the crowdfunding creator needs to transfer money from the crowdfunding joint account, the terminal will display the transfer interface.
- the crowdfunding creator enters the destination account address and transfer amount in this interface.
- the terminal detects that the crowdfunding creator clicks the button used to confirm the transfer in this interface.
- obtain the destination account address and transfer amount entered by the crowdfunding creator from this interface and obtain the stored public key, private key and the contract address of the crowdfunding joint account from the local.
- the transfer amount, destination account address and contract address are signed by the private key, and the ciphertext of the transfer information is obtained.
- the terminal of the crowdfunding creator sends a transfer request to the blockchain node device, and the transfer request carries the above-mentioned transfer information ciphertext and public key.
- the blockchain node device receives the transfer request sent by the crowdfunding creator's terminal.
- Step 107 Obtain transfer information corresponding to the transfer request according to the public key and the ciphertext of the transfer information, where the transfer information includes the contract address corresponding to the crowdfunding joint account.
- the embodiment of the present application specifically obtains the transfer information corresponding to the transfer request through the following steps 1071-1073.
- Step 1071 Decrypt the ciphertext of the transfer information by using the public key to obtain the transfer amount corresponding to the transfer request, the destination account address, and the contract address corresponding to the crowdfunding joint account.
- the blockchain node device obtains the public key and the ciphertext of the transfer information from the received transfer request, and decrypts the ciphertext of the transfer information through the public key to obtain the transfer amount, destination account address and contract address.
- Step 1072 Calculate the user address corresponding to the crowdfunding creator through a preset asymmetric encryption algorithm according to the public key.
- a preset asymmetric encryption algorithm that is consistent with the terminal of the crowdfunding creator is set in the blockchain node device.
- the blockchain node device operates on the public key carried in the transfer request through a preset asymmetric encryption algorithm to obtain the user address of the crowdfunding creator. Since the public key and its corresponding private key are generated by calculating the user address of the crowdfunding creator through the preset asymmetric encryption algorithm, the crowdfunding can be obtained by performing the reverse operation on the public key through the preset asymmetric encryption algorithm. The user address of the creator.
- Step 1073 Determine the transfer amount, the destination account address, the contract address, and the user address corresponding to the crowdfunding creator as the transfer information corresponding to the transfer request.
- the transfer request of the crowdfunding joint account carries the contract address of the crowdfunding joint account, and the blockchain node device can obtain the contract address from the transfer request, so that the smart contract corresponding to the crowdfunding joint account can be called according to the contract address subsequently.
- the transfer request is processed. It is precisely because the smart contract corresponding to the crowdfunding joint account is designed that the scenario requirements of the joint account in the realistic crowdfunding situation are met.
- Step 108 According to the contract address, call the smart contract corresponding to the crowdfunding joint account to process the transfer information.
- the transfer logic of the joint account is agreed upon by the smart contract.
- the crowdfunding creator transfers from the joint account, it must be transferred to the target account specified in the smart contract, such as a hospital account. If the target account is not the account specified by the smart contract, the transfer cannot be realized. It ensures the accuracy of the use of donations, avoids the abuse of donations, and reduces fraudulent donations in crowdfunding platforms.
- the transfer information corresponding to the transfer request is acquired through the operation of step 108, the transfer information is specifically processed through the operations of the following steps 1081-1085.
- Step 1081 Obtain the smart contract corresponding to the crowdfunding joint account and the crowdfunding joint account address according to the contract address.
- the smart contract and crowdfunding joint account address corresponding to the contract address from the blockchain node device.
- Step 1082 According to the smart contract, determine whether the destination account address is an account that has the authority to receive transfers from the crowdfunding joint account. If so, go to step 1083. If not, transfer is not allowed.
- the transfer logic of the crowdfunding joint account is specified in the smart contract, if the destination account address agreed in the smart contract includes the destination account address that the crowdfunding creator requests to transfer, then it is determined that the destination account address can receive funds from the crowdfunding joint account. Funds transferred from the account. Otherwise, it is determined that the destination account address cannot receive donations from the crowdfunding joint account.
- Step 1083 Perform transfer processing according to the transfer amount, the destination account address and the crowdfunding joint account address.
- the transfer will be processed according to the transfer amount, destination account address and crowdfunding joint account address. Specifically, according to the transfer amount and the crowdfunding joint account address, the transfer amount is subtracted from the current balance of the crowdfunding joint account. And according to the transfer amount and the destination account address, add the transfer amount to the current balance of the destination account.
- a successful transfer notification is generated according to the transfer amount and the address of the destination account. information.
- the crowdfunding joint account address send a transfer success notification to the terminal of each co-holder of the crowdfunding joint account, so that all co-holders can know the balance change of the crowdfunding joint account in real time. Enable donors to monitor the use of donations.
- a transfer record corresponding to the transfer request is also generated according to the transfer amount, the destination account address, and the crowdfunding joint account address.
- the correspondence between the crowdfunding joint account address and the transfer record is stored in each blockchain node device.
- the transfer records of the crowdfunding joint account are stored in the blockchain node device, which can ensure the authenticity of the transfer records of the crowdfunding joint account and avoid account book fraud.
- the blockchain node device Before transferring money to the target account through the above method, the blockchain node device also obtains the identification information of the target account corresponding to the transfer request, and sends the identification information to all donors corresponding to the crowdfunding joint account.
- the identification information may be the name of the target account.
- the blockchain node device decrypts the ciphertext of the transfer information through the public key, and obtains the transfer amount corresponding to the transfer request, the destination account address, and the contract address corresponding to the crowdfunding joint account; Obtain the identification information of the target account corresponding to the transfer request from the crowdfunding information of the fundraising account; obtain the user address of each donor corresponding to the crowdfunding joint account; send the identification information to the crowdfunding joint account according to the user address of each donor. corresponding to each donor.
- the identification information of the target account corresponding to the transfer request is sent to each donor through the above method, so that each donor knows the whereabouts of the donation, supervises the use of the donation, and reduces the fraudulent donation in the crowdfunding platform. Phenomenon.
- a corresponding joint account is created for the crowdfunding task, and a smart contract corresponding to the joint account is created, and the transfer-in and transfer-out logic of the joint account is recorded in the smart contract.
- Publish the smart contract to the blockchain to get the contract address.
- the contract address is sent to each donor, so that each donor becomes the joint holder of the joint account, and each donor can be informed of the use of the funds in the joint account.
- an embodiment of the present application provides a blockchain node device for executing the blockchain-based crowdfunding joint account creation method described in any of the above embodiments, including: a receiving module 201 for receiving The account creation request sent by the terminal of the crowdfunding creator, the account creation request includes the crowdfunding joint account address, crowdfunding information, the user address of the crowdfunding creator and the smart contract; the allocation module 202 is used for allocating the contract address to the smart contract; The storage module 203 is used to store the crowdfunding joint account address, crowdfunding information, the user address of the crowdfunding creator, the contract address and the smart contract in the blockchain node device; the receiving module 201 is used to receive the crowdfunding platform sending The donation information includes crowdfunding information, the donor's user address and donation amount; the sending module 204 is used to send the contract address of the crowdfunding joint account corresponding to the current crowdfunding task to the donor according to the donation information.
- the allocation module 202 is used to obtain the crowdfunding joint account address and the user address of the crowdfunding creator from the account creation request; encode the crowdfunding joint account address and the user address of the crowdfunding creator through a preset coding algorithm; Set the hash algorithm to perform a hash operation on the encoded string; remove the first preset number of characters in the string obtained by the hash operation, and determine the remaining string as the contract address corresponding to the smart contract.
- the sending module 204 is configured to obtain the contract address of the crowdfunding joint account corresponding to the crowdfunding information from the block stored in the blockchain node device according to the crowdfunding information included in the donation information; according to the user address of the donor included in the donation information , and send the obtained contract address to the donor.
- the storage module 203 is further configured to generate a new block according to the donation information; and add the new block to the blockchain corresponding to the current crowdfunding task.
- the device further includes: a transaction management module for receiving a transfer request from the crowdfunding joint account sent by the crowdfunding creator, where the transfer request includes the public key and the transfer information ciphertext signed with the private key corresponding to the public key; Transfer information cipher text, obtain the transfer information corresponding to the transfer request, and the transfer information includes the contract address corresponding to the crowdfunding joint account; according to the contract address, call the smart contract corresponding to the crowdfunding joint account to process the transfer information.
- a transaction management module for receiving a transfer request from the crowdfunding joint account sent by the crowdfunding creator, where the transfer request includes the public key and the transfer information ciphertext signed with the private key corresponding to the public key; Transfer information cipher text, obtain the transfer information corresponding to the transfer request, and the transfer information includes the contract address corresponding to the crowdfunding joint account; according to the contract address, call the smart contract corresponding to the crowdfunding joint account to process the transfer information.
- the sending module 204 is further configured to obtain the identification information of the target account corresponding to the transfer request, and send the identification information to all the donors corresponding to the crowdfunding joint account.
- the sending module 204 is also specifically configured to decrypt the ciphertext of the transfer information by using the public key to obtain the transfer amount corresponding to the transfer request, the destination account address and the contract address corresponding to the crowdfunding joint account; Obtain the identification information of the target account corresponding to the transfer request from the crowdfunding information of the fundraising account; obtain the user address of each donor corresponding to the crowdfunding joint account; send the identification information to the crowdfunding joint account according to the user address of each donor. corresponding to each donor.
- the embodiment of the present application applies the joint account to the crowdfunding scenario, so that all the donors become the joint holders of the crowdfunding joint account, so that the donors can be informed of the use of the donations, and the donors can call the donations using the donations.
- the supervisor of the situation to avoid the situation that someone uses the crowdfunding platform to defraud donations.
- the computer device includes a processor, a non-volatile storage medium, a memory, and a network interface connected through a system bus.
- the non-volatile storage medium of the computer device stores an operating system, a database and computer-readable instructions
- the database may store a sequence of control information.
- the processor can realize a A blockchain-based crowdfunding joint account creation method.
- the processor of the computer device is used to provide computing and control capabilities and support the operation of the entire computer device.
- Computer-readable instructions may be stored in the memory of the computer device, and when executed by the processor, the computer-readable instructions may cause the processor to execute a blockchain-based crowdfunding joint account creation method.
- the network interface of the computer equipment is used for communication with the terminal connection.
- FIG. 3 is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer equipment to which the solution of the present application is applied. Include more or fewer components than shown in the figures, or combine certain components, or have a different arrangement of components.
- the computer device includes a memory, a processor, and a computer program stored on the memory and running on the processor.
- the processor executes the computer program, the processor implements the following steps: receiving an account creation request sent by a terminal of a crowdfunding creator, and the account creation request Including the crowdfunding joint account address, crowdfunding information, the user address of the crowdfunding creator and the smart contract; assign the contract address to the smart contract; combine the crowdfunding joint account address, crowdfunding information, the user address and contract address of the crowdfunding creator and smart contracts are stored in the blockchain node device; receive donation information sent by the crowdfunding platform, the donation information includes crowdfunding information, the user address of the donor and the donation amount; according to the donation information, the crowdfunding corresponding to the current crowdfunding task is combined.
- the contract address of the account is sent to the donor.
- the processor executes the computer program, the following steps may also be implemented: obtaining the crowdfunding joint account address and the user address of the crowdfunding creator from the account creation request; The address is encoded; the encoded string is hashed by a preset hash algorithm; the first preset number of characters in the string obtained by the hash operation are eliminated, and the remaining string is determined as the contract corresponding to the smart contract address.
- the processor executes the computer program, the following steps may also be implemented: according to the crowdfunding information included in the donation information, obtain the contract address of the crowdfunding joint account corresponding to the crowdfunding information from the block stored in the blockchain node device; according to the donation information including The user address of the donor, and send the obtained contract address to the donor.
- the processor executes the computer program, the following steps may also be implemented: generating a new block according to the donation information; adding the new block to the blockchain corresponding to the current crowdfunding task.
- the processor executes the computer program, the following steps may also be implemented: receiving a transfer request from the crowdfunding joint account sent by the crowdfunding creator, where the transfer request includes the public key and the transfer information ciphertext signed with the private key corresponding to the public key; And the ciphertext of the transfer information, obtain the transfer information corresponding to the transfer request, and the transfer information includes the contract address corresponding to the crowdfunding joint account; according to the contract address, call the smart contract corresponding to the crowdfunding joint account to process the transfer information.
- the processor executes the computer program, the following steps may also be implemented: acquiring identification information of the target account corresponding to the transfer request, and sending the identification information to all donors corresponding to the crowdfunding joint account.
- the processor executes the computer program, the following steps can also be implemented: decrypt the ciphertext of the transfer information by using the public key to obtain the transfer amount corresponding to the transfer request, the destination account address and the contract address corresponding to the crowdfunding joint account; according to the destination account address, follow the crowd Obtain the identification information of the target account corresponding to the transfer request from the crowdfunding information corresponding to the fundraising joint account; obtain the user address of each donor corresponding to the crowdfunding joint account; send the identification information to the respective donors according to the user address of each donor. Each donor corresponding to the crowdfunding joint account.
- An embodiment of the present application further provides a storage medium storing computer-readable instructions.
- the one or more processors when the computer-readable instructions are executed by one or more processors, the one or more processors perform the following steps : Receive an account creation request sent by the crowdfunding creator's terminal, where the account creation request includes the crowdfunding joint account address, crowdfunding information, the crowdfunding creator's user address and a smart contract; assign a contract address to the smart contract; Store the crowdfunding joint account address, the crowdfunding information, the user address of the crowdfunding creator, the contract address and the smart contract in the blockchain node device; receive donations sent by the crowdfunding platform
- the donation information includes crowdfunding information, the donor's user address and donation amount; according to the donation information, the contract address of the crowdfunding joint account corresponding to the current crowdfunding task is sent to the donor.
- the processor may also perform the following steps: obtaining the crowdfunding joint account address and the user address of the crowdfunding creator from the account creation request;
- the user address of the crowdfunding creator is encoded;
- the encoded string is hashed by a preset hash algorithm; the first preset number of characters in the string obtained by the hash operation are eliminated, and the remaining strings are determined.
- the processor may also perform the following steps: according to the crowdfunding information included in the donation information, obtain the contract address of the crowdfunding joint account corresponding to the crowdfunding information from the block stored in the blockchain node device; the user address of the donor included in the donation information, and send the obtained contract address to the donor.
- the processor may further perform the following steps: generating a new block according to the donation information; adding the new block to the blockchain corresponding to the current crowdfunding task.
- the processor may also perform the following steps: receiving a transfer request from the crowdfunding joint account sent by the crowdfunding creator, where the transfer request includes a public key and a transfer information ciphertext signed with a private key corresponding to the public key ; According to the public key and the ciphertext of the transfer information, obtain the transfer information corresponding to the transfer request, and the transfer information includes the contract address corresponding to the crowdfunding joint account; according to the contract address, call the The smart contract corresponding to the crowdfunding joint account processes the transfer information.
- the processor may further perform the following steps: acquiring identification information of the target account corresponding to the transfer request, and sending the identification information to all donors corresponding to the crowdfunding joint account.
- the processor may also perform the following steps: decrypt the ciphertext of the transfer information by using the public key to obtain the transfer amount corresponding to the transfer request, the destination account address and the contract address corresponding to the crowdfunding joint account; the destination account address, obtain the identification information of the target account corresponding to the transfer request from the crowdfunding information corresponding to the crowdfunding joint account; obtain the user address of each donor corresponding to the crowdfunding joint account; The user address of each donor is sent, and the identification information is sent to each donor corresponding to the crowdfunding joint account.
- the storage medium involved in this application may be non-volatile or volatile.
- the aforementioned storage medium may be a non-volatile storage medium such as a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM), or a random storage memory (Random Access Memory, RAM), etc.
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Abstract
本申请提出一种基于区块链的众筹联合账户创建方法、设备及存储介质，该方法包括：接收众筹创建人的终端发送的账户创建请求，账户创建请求包括众筹联合账户地址、众筹信息、众筹创建人的用户地址及智能合约；为智能合约分配合约地址；将众筹联合账户地址、众筹信息、众筹创建人的用户地址、合约地址及智能合约存储在区块链节点设备中；接收众筹平台发送的包括众筹信息、捐款人的用户地址及捐款额度；将当前众筹任务对应的众筹联合账户的合约地址发送给捐款人。本申请将联合账户应用于众筹场景，使捐款人成为众筹联合账户的共同持有人，能使捐款人获知善款使用情况，使捐款人成为所捐善款使用情况的监督者，避免有人利用众筹平台诈捐的情况出现。
Description
本申请要求于2020年11月16日提交中国专利局、申请号为202011280586.3，发明名称为“基于区块链的众筹联合账户创建方法、设备及存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
本申请属于区块链技术领域，具体涉及一种基于区块链的众筹联合账户创建方法、设备及存储介质。
发明人意识到，目前，很多发生意外事故或重大疾病急需大额医药费用的家庭采用众筹的方式来筹集费用，社会上的善心人士可以通过众筹平台进行捐款，但捐款之后捐款人无法获知这部分费用如何被使用，众筹善款的使用得不到很好的监督，导致有人利用这个漏洞编纂虚假伤情或疾病信息来骗取众筹善款。
本申请提出一种基于区块链的众筹联合账户创建方法、设备及存储介质，本申请将联合账户应用于众筹场景，使所有捐款人都成为众筹联合账户的共同持有人，从而能够使捐款人获知善款的使用情况，使捐款人称为所捐善款使用情况的监督者，避免有人利用众筹平台诈捐的情况出现。
本申请第一方面实施例提出了一种基于区块链的众筹联合账户交易处理方法，应用于区块链节点设备，包括：接收众筹创建人的终端发送的账户创建请求，所述账户创建请求包括众筹联合账户地址、众筹信息、众筹创建人的用户地址及智能合约；为所述智能合约分配合约地址；将所述众筹联合账户地址、所述众筹信息、所述众筹创建人的用户地址、所述合约地址及所述智能合约存储在区块链节点设备中；接收众筹平台发送的捐款信息，所述捐款信息包括众筹信息、捐款人的用户地址及捐款额度；根据所述捐款信息将当前众筹任务对应的众筹联合账户的合约地址发送给所述捐款人。
本申请第二方面的实施例提供了一种区块链节点设备，包括：接收模块，用于接收众筹创建人的终端发送的账户创建请求，所述账户创建请求包括众筹联合账户地址、众筹信息、众筹创建人的用户地址及智能合约；分配模块，用于为所述智能合约分配合约地址；存储模块，用于将所述众筹联合账户地址、所述众筹信息、所述众筹创建人的用户地址、所述合约地址及所述智能合约存储在区块链节点设备中；所述接收模块，用于接收众筹平台发送的捐款信息，所述捐款信息包括众筹信息、捐款人的用户地址及捐款额度；发送模块，用于根据所述捐款信息将当前众筹任务对应的众筹联合账户的合约地址发送给所述捐款人。
本申请第三方面的实施例提供了一种计算机设备，包括存储器和处理器，所述存储器中存储有计算机可读指令，所述计算机可读指令被所述处理器执行时，使得所述处理器执行上述基于区块链的众筹联合账户创建方法，该方法包括：接收众筹创建人的终端发送的账户创建请求，所述账户创建请求包括众筹联合账户地址、众筹信息、众筹创建人的用户地址及智能合约；为所述智能合约分配合约地址；将所述众筹联合账户地址、所述众筹信息、所述众筹创建人的用户地址、所述合约地址及所述智能合约存储在区块链节点设备中；接收众筹平台发送的捐款信息，所述捐款信息包括众筹信息、捐款人的用户地址及捐款额度；根据所述捐款信息将当前众筹任务对应的众筹联合账户的合约地址发送给所述捐款人。
本申请第四方面的实施例提供了一种存储有计算机可读指令的存储介质，所述计算机可读指令被一个或多个处理器执行时，使得一个或多个处理器执行上述基于区块链的众筹联合账户创建方法，该方法包括：接收众筹创建人的终端发送的账户创建请求，所述账户创建请求包括众筹联合账户地址、众筹信息、众筹创建人的用户地址及智能合约；为所述智能合约分配合约地址；将所述众筹联合账户地址、所述众筹信息、所述众筹创建人的用户地址、所述合约地址及所述智能合约存储在区块链节点设备中；接收众筹平台发送的捐款信息，所述捐款信息包括众筹信息、捐款人的用户地址及捐款额度；根据所述捐款信息将当前众筹任务对应的众筹联合账户的合约地址发送给所述捐款人。
本申请实施例将联合账户应用于众筹场景，使捐款人成为所捐善款使用情况的监督者，避免有人利用众筹平台诈捐的情况出现。
本申请附加的方面和优点将在下面的描述中部分给出，部分将从下面的描述中变的明显，或通过本申请的实践了解到。
通过阅读下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的，而并不认为是对本申请的限制。而且在整个附图中，用相同的参考符号表示相同的部件。图1示出了本申请一实施例所提供的一种基于区块链的众筹联合账户创建方法的流程示意图。
图2示出了本申请一实施例所提供的一种区块链节点设备的结构示意图。
图3示出了本申请一实施例所提供的一种计算机设备的结构示意图。
图4示出了本申请一实施例所提供的一种存储介质的示意图。
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
可以理解，本申请所使用的术语“第一”、“第二”等可在本文中用于描述各种元件，但这些元件不受这些术语限制。这些术语仅用于将第一个元件与另一个元件区分。
本申请可涉及人工智能技术领域，如可以基于人工智能技术对相关的数据进行获取和处理。可选的，本申请的技术方案可应用于各种联合账户创建场景，如数字医疗中的联合账户创建场景。例如，本申请涉及的众筹平台可以为医疗平台、第三方平台或其他平台，该众筹平台中可以包括各种医疗数据。可选的，该医疗数据可包括个人健康档案、处方、检查报告、医疗保险业务数据中的一种或多种数据。
本申请的一些实施例提供了一种基于区块链的众筹联合账户创建方法，当用户在众筹平台创建一个众筹任务时，在区块链系统中请求创建一个众筹联合账户，生成该众筹联合账户对应的智能合约，在该智能合约中约定该众筹联合账户的转账逻辑。例如，可以在该智能合约中约定从众筹联合账户转出款项时需要通知全体共同持有人，以及约定只有众筹创建人可以从该众筹联合账户转出款项，捐款人不得从该众筹联合账户转出款项，以及约定能够从该众筹联合账户接收转账的账户（如医疗结构的账户），等等。
制定出该众筹联合账户对应的合约之后，众筹创建人可以通过自己的终端向区块链节点设备发起账户创建请求，并在该账户创建请求中携带众筹信息、众筹创建人的用户地址、众筹联合账户地址及智能合约。其中，众筹联合账户地址可以为该众筹联合账户的账号，众筹信息包括众筹原因说明、款项用途说明，众筹创建人的个人信息等。
如图1所示，区块链节点设备接收到该账户创建请求，通过如下步骤101-103的操作在区块链系统中创建该众筹联合账户。
步骤101：接收众筹创建人的终端发送的账户创建请求，该账户创建请求包括众筹联合账户地址、众筹信息、众筹创建人的用户地址及智能合约。
步骤102：为智能合约分配合约地址。
具体地，从账户创建请求中获取众筹创建人的用户地址。通过预设编码算法对该用户地址和众筹联合账户地址进行编码。预设编码算法可以为RLP（Recursive
Length Prefix,递归的长度前缀）。
通过预设散列算法将编码得到的字符串进行散列运算，预设散列算法可以为SHA3（Secure Hah
Algorithm 3，第三代安全散列算法）。将散列运算得到的字符串的前预设数目个字符剔除，将剩余的字符串确定为智能合约对应的合约地址。预设数目可以为12或14等。
步骤103：将众筹联合账户地址、众筹信息、众筹创建人的用户地址、合约地址及智能合约存储在区块链节点设备中。
将众筹联合账户地址、众筹信息、众筹创建人的用户地址、合约地址及智能合约对应存储在区块链中的每个区块链节点设备中。
步骤104：接收众筹平台发送的捐款信息，该捐款信息包括众筹信息、捐款人的用户地址及捐款额度。
当有捐款人通过众筹平台为该众筹任务捐款时，众筹平台获取捐款人的用户地址和捐款额度，发送捐款信息给区块链节点设备，该捐款信息包括众筹信息、捐款人的用户地址及捐款额度。
步骤105：根据该捐款信息将当前众筹任务对应的众筹联合账户的合约地址发送给捐款人。
根据该捐款信息包括的众筹信息，从区块链节点设备存储的区块中获取该众筹信息对应的众筹联合账户的合约地址。根据该捐款信息包括的捐款人的用户地址，发送获取的合约地址给捐款人。
捐款人的终端接收到该合约地址之后，存储该合约地址。在区块链中实现众筹联合账户的管理，使得众筹创建人和每个捐款人在不共享私钥的前提下，通过各自的私钥和众筹联合账户的合约地址即可实现对众筹联合账户的管理操作。从而使捐款人都成为该众筹联合账户的共同持有人，能够使捐款人对该众筹联合账户中的善款的使用情况进行监督。且基于区块链的可追溯、不可篡改特性，在区块链中实现众筹联合账户的管理，能够确保众筹联合账户的捐款记录及善款使用记录真实可靠，避免账户作假，且多个共同持有人使用各自的私钥，无需共享私钥，能够提高众筹联合账户的安全性。
在本申请的另一些实施例中，区块链节点设备还根据接收的捐款信息，生成一个新的区块。将该新的区块添加到当前众筹任务对应的区块链中。基于区块链的可追溯、不可篡改的特性，将包含捐款信息的区块存储在区块链节点设备中，能够确保众筹联合账户的捐款记录的真实性，避免捐款信息作假。
通过上述方式在区块链系统中创建众筹任务对应的众筹联合账户，并部署该众筹联合账户的智能合约之后，可以通过如下步骤106-108的操作来对众筹联合账户进行交易处理。
步骤106：接收众筹创建人发送的众筹联合账户的转账请求，该转账请求包括公钥及利用公钥对应的私钥签名的转账信息密文。
众筹创建人需要从众筹联合账户转账时，终端显示转账界面，众筹创建人在该界面中输入目的账户地址及转账金额，终端检测到众筹创建人点击该界面中用于确定转账的按钮时，从该界面中获取众筹创建人输入的目的账户地址和转账金额，从本地获取存储的公钥、私钥和该众筹联合账户的合约地址。通过该私钥对转账金额、目的账户地址和合约地址进行签名，得到转账信息密文。然后众筹创建人的终端发送转账请求给区块链节点设备，在该转账请求中携带上述转账信息密文和公钥。区块链节点设备接收众筹创建人的终端发送的该转账请求。
步骤107：根据公钥和转账信息密文，获取转账请求对应的转账信息，该转账信息中包括众筹联合账户对应的合约地址。
本申请实施例具体通过如下步骤1071-1073的操作来获取该转账请求对应的转账信息。
步骤1071：通过公钥对转账信息密文进行解密，得到转账请求对应的转账金额、目的账户地址和众筹联合账户对应的合约地址。
区块链节点设备从接收到的转账请求中获取公钥及转账信息密文，通过该公钥对该转账信息密文进行解密，得到转账金额、目的账户地址和合约地址。
步骤1072：根据公钥，通过预设非对称加密算法计算众筹创建人对应的用户地址。
本申请实施例在区块链节点设备中设置了与众筹创建人的终端上一致的预设非对称加密算法。区块链节点设备通过预设非对称加密算法对转账请求中携带的公钥进行运算，得到众筹创建人的用户地址。由于公钥及其对应的私钥是通过预设非对称加密算法对众筹创建人的用户地址进行运算生成的，因此通过预设非对称加密算法对公钥进行反向运算，能够得到众筹创建人的用户地址。
步骤1073：将转账金额、目的账户地址、合约地址和众筹创建人对应的用户地址确定为该转账请求对应的转账信息。
众筹联合账户的转账请求中携带了众筹联合账户的合约地址，区块链节点设备从转账请求中能够获得该合约地址，从而后续根据该合约地址能够调用众筹联合账户对应的智能合约对该转账请求进行处理。正是由于设计了众筹联合账户对应的智能合约，才满足了现实的众筹情境中联合账户的场景需求。
步骤108：根据合约地址，调用众筹联合账户对应的智能合约对转账信息进行处理。
通过智能合约约定联合账户的转账逻辑，众筹创建人从联合账户转出时，必须是转给智能合约规定的目标账户，如医院的账户。若目标账户不是智能合约规定的账户，则无法实现转账。确保了善款使用的准确性，避免善款滥用，减少众筹平台中的诈捐行为。
通过步骤108的操作获取到该转账请求对应的转账信息之后，具体通过如下步骤1081-1085的操作来对该转账信息进行处理。
步骤1081：根据合约地址，获取众筹联合账户对应的智能合约及众筹联合账户地址。
根据转账信息包括的合约地址，从区块链节点设备中获取该合约地址对应的智能合约及众筹联合账户地址。
步骤1082：根据智能合约，确定目的账户地址是否为有权限能够从该众筹联合账户接收转账的账户，如果是，则执行步骤1083，如果否，则不允许转账。
由于智能合约中规定了众筹联合账户的转账逻辑，若智能合约中约定的目的账户地址中包括众筹创建人请求转账的该目的账户地址，则确定该目的账户地址能够接收从该众筹联合账户转出的善款。否则，确定该目的账户地址不能接收从该众筹联合账户转出的善款。
步骤1083：根据转账金额、目的账户地址和众筹联合账户地址进行转账处理。
若通过上述方式确定本次转账请求满足智能合约的规定，则根据转账金额、目的账户地址和众筹联合账户地址进行转账处理。具体地，根据转账金额和众筹联合账户地址，从众筹联合账户的当前余额中减去该转账金额。以及根据转账金额和目的账户地址，在目的账户的当前余额的基础上加上该转账金额。
通过上述方式从该众筹联合账户向目的账户转账之后，根据该转账金额和目的账户地址，生成转账成功通知，该转账成功通知中包括该转账金额、目的账户地址以及用于提示转账成功的提示信息。根据该众筹联合账户地址，分别向该众筹联合账户的每个共同持有人的终端发送转账成功通知，以便所有的共同持有人都能实时获知该众筹联合账户的余额变动情况，使捐款人能够对善款的使用情况进行监督。
通过上述方式完成众筹联合账户的转账之后，还根据转账金额、目的账户地址、众筹联合账户地址，生成转账请求对应的转账记录。在各个区块链节点设备中存储众筹联合账户地址与转账记录的对应关系。基于区块链的可追溯、不可篡改的特性，将众筹联合账户的转账记录存储在区块链节点设备中，能够确保众筹联合账户的转账记录的真实性，避免账本作假。
通过上述方式向目标账户转账之前，区块链节点设备还获取该转账请求对应的目标账户的标识信息，发送该标识信息给众筹联合账户对应的所有捐款人。标识信息可以为目标账户的名称。
具体地，区块链节点设备通过公钥对转账信息密文进行解密，得到转账请求对应的转账金额、目的账户地址和众筹联合账户对应的合约地址；根据目的账户地址，从众筹联合账户对应的众筹信息中获取转账请求对应的目标账户的标识信息；获取众筹联合账户对应的每个捐款人的用户地址；根据每个捐款人的用户地址，分别将标识信息发送给众筹联合账户对应的每个捐款人。
通过上述方式将转账请求对应的目标账户的标识信息发送给每个捐款人，使每个捐款人获知善款去向，对善款的使用进行很好的监督，减少众筹平台中存在的诈捐现象。
在本申请实施例中，在用户创建众筹任务时，为本次众筹任务创建对应的联合账户，创建联合账户对应的智能合约，智能合约中记录了联合账户的转入及转出逻辑。将智能合约发布到区块链上获得合约地址。将该合约地址发送给每一个捐款人，使每一个捐款人都成为该联合账户的共同持有人，能够使每一个捐款人获知该联合账户中的善款的使用情况。将联合账户应用于众筹场景，使捐款人成为所捐善款使用情况的监督者，避免有人利用众筹平台诈捐的情况出现。
如图2所示，本申请实施例提供了区块链节点设备，用于执行上述任一实施例所述的基于区块链的众筹联合账户创建方法，包括：接收模块201，用于接收众筹创建人的终端发送的账户创建请求，账户创建请求包括众筹联合账户地址、众筹信息、众筹创建人的用户地址及智能合约；分配模块202，用于为智能合约分配合约地址；存储模块203，用于将众筹联合账户地址、众筹信息、众筹创建人的用户地址、合约地址及智能合约存储在区块链节点设备中；接收模块201，用于接收众筹平台发送的捐款信息，捐款信息包括众筹信息、捐款人的用户地址及捐款额度；发送模块204，用于根据捐款信息将当前众筹任务对应的众筹联合账户的合约地址发送给捐款人。
分配模块202，用于从账户创建请求中获取众筹联合账户地址和众筹创建人的用户地址；通过预设编码算法对众筹联合账户地址和众筹创建人的用户地址进行编码；通过预设散列算法对编码得到的字符串进行散列运算；将散列运算得到的字符串的前预设数目个字符剔除，将剩余的字符串确定为智能合约对应的合约地址。
发送模块204，用于根据捐款信息包括的众筹信息，从区块链节点设备存储的区块中获取众筹信息对应的众筹联合账户的合约地址；根据捐款信息包括的捐款人的用户地址，发送获取的合约地址给捐款人。
存储模块203，还用于根据捐款信息，生成一个新的区块；将新的区块添加到当前众筹任务对应的区块链中。
该设备还包括：交易管理模块，用于接收众筹创建人发送的众筹联合账户的转账请求，转账请求包括公钥及利用公钥对应的私钥签名的转账信息密文；根据公钥和转账信息密文，获取转账请求对应的转账信息，转账信息中包括众筹联合账户对应的合约地址；根据合约地址，调用众筹联合账户对应的智能合约对转账信息进行处理。
发送模块204，还用于获取转账请求对应的目标账户的标识信息，发送标识信息给众筹联合账户对应的所有捐款人。
发送模块204，还具体用于通过公钥对转账信息密文进行解密，得到转账请求对应的转账金额、目的账户地址和众筹联合账户对应的合约地址；根据目的账户地址，从众筹联合账户对应的众筹信息中获取转账请求对应的目标账户的标识信息；获取众筹联合账户对应的每个捐款人的用户地址；根据每个捐款人的用户地址，分别将标识信息发送给众筹联合账户对应的每个捐款人。
本申请实施例将联合账户应用于众筹场景，使所有捐款人都成为众筹联合账户的共同持有人，从而能够使捐款人获知善款的使用情况，使捐款人称为所捐善款使用情况的监督者，避免有人利用众筹平台诈捐的情况出现。
本申请实施例提供了一种计算机设备，如图3所示，该计算机设备包括通过系统总线连接的处理器、非易失性存储介质、存储器和网络接口。其中，该计算机设备的非易失性存储介质存储有操作系统、数据库和计算机可读指令，数据库中可存储有控件信息序列，该计算机可读指令被处理器执行时，可使得处理器实现一种基于区块链的众筹联合账户创建方法。该计算机设备的处理器用于提供计算和控制能力，支撑整个计算机设备的运行。该计算机设备的存储器中可存储有计算机可读指令，该计算机可读指令被处理器执行时，可使得处理器执行一种基于区块链的众筹联合账户创建方法。该计算机设备的网络接口用于与终端连接通信。本领域技术人员可以理解，图3中示出的结构，仅仅是与本申请方案相关的部分结构的框图，并不构成对本申请方案所应用于其上的计算机设备的限定，具体的计算机设备可以包括比图中所示更多或更少的部件，或者组合某些部件，或者具有不同的部件布置。
该计算机设备包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，处理器执行计算机程序时实现以下步骤：接收众筹创建人的终端发送的账户创建请求，账户创建请求包括众筹联合账户地址、众筹信息、众筹创建人的用户地址及智能合约；为智能合约分配合约地址；将众筹联合账户地址、众筹信息、众筹创建人的用户地址、合约地址及智能合约存储在区块链节点设备中；接收众筹平台发送的捐款信息，捐款信息包括众筹信息、捐款人的用户地址及捐款额度；根据捐款信息将当前众筹任务对应的众筹联合账户的合约地址发送给捐款人。
处理器执行计算机程序时还可以实现以下步骤：从账户创建请求中获取众筹联合账户地址和众筹创建人的用户地址；通过预设编码算法对众筹联合账户地址和众筹创建人的用户地址进行编码；通过预设散列算法对编码得到的字符串进行散列运算；将散列运算得到的字符串的前预设数目个字符剔除，将剩余的字符串确定为智能合约对应的合约地址。
处理器执行计算机程序时还可以实现以下步骤：根据捐款信息包括的众筹信息，从区块链节点设备存储的区块中获取众筹信息对应的众筹联合账户的合约地址；根据捐款信息包括的捐款人的用户地址，发送获取的合约地址给捐款人。
处理器执行计算机程序时还可以实现以下步骤：根据捐款信息，生成一个新的区块；将新的区块添加到当前众筹任务对应的区块链中。
处理器执行计算机程序时还可以实现以下步骤：接收众筹创建人发送的众筹联合账户的转账请求，转账请求包括公钥及利用公钥对应的私钥签名的转账信息密文；根据公钥和转账信息密文，获取转账请求对应的转账信息，转账信息中包括众筹联合账户对应的合约地址；根据合约地址，调用众筹联合账户对应的智能合约对转账信息进行处理。
处理器执行计算机程序时还可以实现以下步骤：获取转账请求对应的目标账户的标识信息，发送标识信息给众筹联合账户对应的所有捐款人。
处理器执行计算机程序时还可以实现以下步骤：通过公钥对转账信息密文进行解密，得到转账请求对应的转账金额、目的账户地址和众筹联合账户对应的合约地址；根据目的账户地址，从众筹联合账户对应的众筹信息中获取转账请求对应的目标账户的标识信息；获取众筹联合账户对应的每个捐款人的用户地址；根据每个捐款人的用户地址，分别将标识信息发送给众筹联合账户对应的每个捐款人。
本申请实施例还提出了一种存储有计算机可读指令的存储介质，如图4所示，该计算机可读指令被一个或多个处理器执行时，使得一个或多个处理器执行以下步骤：接收众筹创建人的终端发送的账户创建请求，所述账户创建请求包括众筹联合账户地址、众筹信息、众筹创建人的用户地址及智能合约；为所述智能合约分配合约地址；将所述众筹联合账户地址、所述众筹信息、所述众筹创建人的用户地址、所述合约地址及所述智能合约存储在区块链节点设备中；接收众筹平台发送的捐款信息，所述捐款信息包括众筹信息、捐款人的用户地址及捐款额度；根据所述捐款信息将当前众筹任务对应的众筹联合账户的合约地址发送给所述捐款人。
处理器还可以执行以下步骤：从所述账户创建请求中获取所述众筹联合账户地址和所述众筹创建人的用户地址；通过预设编码算法对所述众筹联合账户地址和所述众筹创建人的用户地址进行编码；通过预设散列算法对编码得到的字符串进行散列运算；将散列运算得到的字符串的前预设数目个字符剔除，将剩余的字符串确定为所述智能合约对应的合约地址。
处理器还可以执行以下步骤：根据所述捐款信息包括的众筹信息，从所述区块链节点设备存储的区块中获取所述众筹信息对应的众筹联合账户的合约地址；根据所述捐款信息包括的捐款人的用户地址，发送获取的所述合约地址给所述捐款人。
处理器还可以执行以下步骤：根据所述捐款信息，生成一个新的区块；将所述新的区块添加到所述当前众筹任务对应的区块链中。
处理器还可以执行以下步骤：接收所述众筹创建人发送的所述众筹联合账户的转账请求，所述转账请求包括公钥及利用所述公钥对应的私钥签名的转账信息密文；根据所述公钥和所述转账信息密文，获取所述转账请求对应的转账信息，所述转账信息中包括所述众筹联合账户对应的合约地址；根据所述合约地址，调用所述众筹联合账户对应的智能合约对所述转账信息进行处理。
处理器还可以执行以下步骤：获取所述转账请求对应的目标账户的标识信息，发送所述标识信息给所述众筹联合账户对应的所有捐款人。
处理器还可以执行以下步骤：通过所述公钥对所述转账信息密文进行解密，得到所述转账请求对应的转账金额、目的账户地址和所述众筹联合账户对应的合约地址；根据所述目的账户地址，从所述众筹联合账户对应的众筹信息中获取所述转账请求对应的目标账户的标识信息；获取所述众筹联合账户对应的每个捐款人的用户地址；根据所述每个捐款人的用户地址，分别将所述标识信息发送给所述众筹联合账户对应的每个捐款人。
可选的，本申请涉及的存储介质可以是非易失性的，也可以是易失性的。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，该计算机程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，前述的存储介质可为磁碟、光盘、只读存储记忆体（Read-Only Memory，ROM）等非易失性存储介质，或随机存储记忆体（Random
Access Memory，RAM）等。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。
Claims (20)
- 一种基于区块链的众筹联合账户创建方法，其中，应用于区块链节点设备，包括：接收众筹创建人的终端发送的账户创建请求，所述账户创建请求包括众筹联合账户地址、众筹信息、众筹创建人的用户地址及智能合约；为所述智能合约分配合约地址；将所述众筹联合账户地址、所述众筹信息、所述众筹创建人的用户地址、所述合约地址及所述智能合约存储在区块链节点设备中；接收众筹平台发送的捐款信息，所述捐款信息包括众筹信息、捐款人的用户地址及捐款额度；根据所述捐款信息将当前众筹任务对应的众筹联合账户的合约地址发送给所述捐款人。
- 根据权利要求1所述的方法，其中，所述为所述智能合约分配合约地址，包括：从所述账户创建请求中获取所述众筹联合账户地址和所述众筹创建人的用户地址；通过预设编码算法对所述众筹联合账户地址和所述众筹创建人的用户地址进行编码；通过预设散列算法对编码得到的字符串进行散列运算；将散列运算得到的字符串的前预设数目个字符剔除，将剩余的字符串确定为所述智能合约对应的合约地址。
- 根据权利要求1所述的方法，其中，所述根据所述捐款信息将当前众筹任务对应的众筹联合账户的合约地址发送给所述捐款人，包括：根据所述捐款信息包括的众筹信息，从所述区块链节点设备存储的区块中获取所述众筹信息对应的众筹联合账户的合约地址；根据所述捐款信息包括的捐款人的用户地址，发送获取的所述合约地址给所述捐款人。
- 根据权利要求1-3任一项所述的方法，其中，所述方法还包括：根据所述捐款信息，生成一个新的区块；将所述新的区块添加到所述当前众筹任务对应的区块链中。
- 根据权利要求1-3任一项所述的方法，其中，所述方法还包括：接收所述众筹创建人发送的所述众筹联合账户的转账请求，所述转账请求包括公钥及利用所述公钥对应的私钥签名的转账信息密文；根据所述公钥和所述转账信息密文，获取所述转账请求对应的转账信息，所述转账信息中包括所述众筹联合账户对应的合约地址；根据所述合约地址，调用所述众筹联合账户对应的智能合约对所述转账信息进行处理。
- 根据权利要求5所述的方法，其中，所述方法还包括：获取所述转账请求对应的目标账户的标识信息，发送所述标识信息给所述众筹联合账户对应的所有捐款人。
- 根据权利要求6所述的方法，其中，所述获获取所述转账请求对应的目标账户的标识信息，发送所述标识信息给所述众筹联合账户对应的所有捐款人，包括：通过所述公钥对所述转账信息密文进行解密，得到所述转账请求对应的转账金额、目的账户地址和所述众筹联合账户对应的合约地址；根据所述目的账户地址，从所述众筹联合账户对应的众筹信息中获取所述转账请求对应的目标账户的标识信息；获取所述众筹联合账户对应的每个捐款人的用户地址；根据所述每个捐款人的用户地址，分别将所述标识信息发送给所述众筹联合账户对应的每个捐款人。
- 一种区块链节点设备，其中，包括：接收模块，用于接收众筹创建人的终端发送的账户创建请求，所述账户创建请求包括众筹联合账户地址、众筹信息、众筹创建人的用户地址及智能合约；分配模块，用于为所述智能合约分配合约地址；存储模块，用于将所述众筹联合账户地址、所述众筹信息、所述众筹创建人的用户地址、所述合约地址及所述智能合约存储在区块链节点设备中；所述接收模块，用于接收众筹平台发送的捐款信息，所述捐款信息包括众筹信息、捐款人的用户地址及捐款额度；发送模块，用于根据所述捐款信息将当前众筹任务对应的众筹联合账户的合约地址发送给所述捐款人。
- 一种计算机设备，包括存储器和处理器，所述存储器中存储有计算机可读指令，所述计算机可读指令被所述处理器执行时，使得所述处理器执行基于区块链的众筹联合账户创建方法，所述方法包括：接收众筹创建人的终端发送的账户创建请求，所述账户创建请求包括众筹联合账户地址、众筹信息、众筹创建人的用户地址及智能合约；为所述智能合约分配合约地址；将所述众筹联合账户地址、所述众筹信息、所述众筹创建人的用户地址、所述合约地址及所述智能合约存储在区块链节点设备中；接收众筹平台发送的捐款信息，所述捐款信息包括众筹信息、捐款人的用户地址及捐款额度；根据所述捐款信息将当前众筹任务对应的众筹联合账户的合约地址发送给所述捐款人。
- 根据权利要求9所述的计算机设备，其中，执行所述为所述智能合约分配合约地址，包括：从所述账户创建请求中获取所述众筹联合账户地址和所述众筹创建人的用户地址；通过预设编码算法对所述众筹联合账户地址和所述众筹创建人的用户地址进行编码；通过预设散列算法对编码得到的字符串进行散列运算；将散列运算得到的字符串的前预设数目个字符剔除，将剩余的字符串确定为所述智能合约对应的合约地址。
- 根据权利要求9所述的计算机设备，其中，执行所述根据所述捐款信息将当前众筹任务对应的众筹联合账户的合约地址发送给所述捐款人，包括：根据所述捐款信息包括的众筹信息，从所述区块链节点设备存储的区块中获取所述众筹信息对应的众筹联合账户的合约地址；根据所述捐款信息包括的捐款人的用户地址，发送获取的所述合约地址给所述捐款人。
- 根据权利要求9-11任一项所述的计算机设备，其中，所述处理器执行所述方法时，还包括：根据所述捐款信息，生成一个新的区块；将所述新的区块添加到所述当前众筹任务对应的区块链中。
- 根据权利要求9-11任一项所述的计算机设备，其中，所述处理器执行所述方法时，还包括：接收所述众筹创建人发送的所述众筹联合账户的转账请求，所述转账请求包括公钥及利用所述公钥对应的私钥签名的转账信息密文；根据所述公钥和所述转账信息密文，获取所述转账请求对应的转账信息，所述转账信息中包括所述众筹联合账户对应的合约地址；根据所述合约地址，调用所述众筹联合账户对应的智能合约对所述转账信息进行处理。
- 根据权利要求13所述的计算机设备，其中，所述处理器执行所述方法时，还包括：获取所述转账请求对应的目标账户的标识信息，发送所述标识信息给所述众筹联合账户对应的所有捐款人。
- 一种存储有计算机可读指令的存储介质，所述计算机可读指令被一个或多个处理器执行时，使得一个或多个处理器执行基于区块链的众筹联合账户创建方法，所述方法包括：接收众筹创建人的终端发送的账户创建请求，所述账户创建请求包括众筹联合账户地址、众筹信息、众筹创建人的用户地址及智能合约；为所述智能合约分配合约地址；将所述众筹联合账户地址、所述众筹信息、所述众筹创建人的用户地址、所述合约地址及所述智能合约存储在区块链节点设备中；接收众筹平台发送的捐款信息，所述捐款信息包括众筹信息、捐款人的用户地址及捐款额度；根据所述捐款信息将当前众筹任务对应的众筹联合账户的合约地址发送给所述捐款人。
- 根据权利要求15所述的存储介质，其中，执行所述为所述智能合约分配合约地址，包括：从所述账户创建请求中获取所述众筹联合账户地址和所述众筹创建人的用户地址；通过预设编码算法对所述众筹联合账户地址和所述众筹创建人的用户地址进行编码；通过预设散列算法对编码得到的字符串进行散列运算；将散列运算得到的字符串的前预设数目个字符剔除，将剩余的字符串确定为所述智能合约对应的合约地址。
- 根据权利要求15所述的存储介质，其中，执行所述根据所述捐款信息将当前众筹任务对应的众筹联合账户的合约地址发送给所述捐款人，包括：根据所述捐款信息包括的众筹信息，从所述区块链节点设备存储的区块中获取所述众筹信息对应的众筹联合账户的合约地址；根据所述捐款信息包括的捐款人的用户地址，发送获取的所述合约地址给所述捐款人。
- 根据权利要求15-17任一项所述的存储介质，其中，所述处理器执行所述方法时，还包括：根据所述捐款信息，生成一个新的区块；将所述新的区块添加到所述当前众筹任务对应的区块链中。
- 根据权利要求15-17任一项所述的存储介质，其中，所述处理器执行所述方法时，还包括：接收所述众筹创建人发送的所述众筹联合账户的转账请求，所述转账请求包括公钥及利用所述公钥对应的私钥签名的转账信息密文；根据所述公钥和所述转账信息密文，获取所述转账请求对应的转账信息，所述转账信息中包括所述众筹联合账户对应的合约地址；根据所述合约地址，调用所述众筹联合账户对应的智能合约对所述转账信息进行处理。
- 根据权利要求19所述的存储介质，其中，所述处理器执行所述方法时，还包括：获取所述转账请求对应的目标账户的标识信息，发送所述标识信息给所述众筹联合账户对应的所有捐款人。
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