CN111445248B - Foreign exchange transaction processing method, device, system and storage medium - Google Patents
Foreign exchange transaction processing method, device, system and storage medium Download PDFInfo
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- CN111445248B CN111445248B CN202010284691.8A CN202010284691A CN111445248B CN 111445248 B CN111445248 B CN 111445248B CN 202010284691 A CN202010284691 A CN 202010284691A CN 111445248 B CN111445248 B CN 111445248B
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Abstract
The application provides a method, a device, a system and a storage medium for processing a foreign exchange transaction, wherein after a first blockchain obtains a foreign exchange transaction request, the foreign exchange transaction request is sent to at least one second blockchain; the first block chain receives transaction feasibility information fed back by at least one second block chain respectively; and if the transaction feasibility information corresponding to at least a preset number of blockchains in the first blockchain and at least one second blockchain represents that the sum of the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign exchange currency and the first foreign exchange amount is smaller than or equal to the maximum foreign exchange amount, generating an instruction for allowing a foreign exchange transaction request. So that even if the historical foreign exchange transaction amount stored in a blockchain is changed, no economic loss is incurred to the customer. And the data stored in the blockchain has non-tamperable capabilities. Because the content stored by the plurality of blockchains is the same, even if one blockchain is damaged, the client cannot conduct foreign exchange transaction.
Description
Technical Field
The present application relates to the field of supervision of foreign exchange data in banks, and more particularly, to a method, apparatus, system and storage medium for processing foreign exchange transactions.
Background
Foreign exchange transactions are exchanges of one country with another country. The client can apply for the foreign exchange transaction from the bank, and after receiving the foreign exchange transaction request from the client, the bank determines whether the foreign exchange transaction is feasible or not, for example, inquires whether the sum of the historical foreign exchange transaction amount and the current foreign exchange transaction amount of the client exceeds a set amount. And the bank allows the foreign exchange transaction request of the client after receiving the foreign exchange transaction feasible information fed back by the foreign exchange management office.
If the historical foreign exchange transaction amount of the client stored in the foreign exchange management office is changed, or if the storage device storing the historical foreign exchange transaction amount of the client in the foreign exchange management office is damaged, the client may not be able to conduct the foreign exchange transaction.
Disclosure of Invention
In view of the foregoing, the present application provides a method, apparatus, system and storage medium for processing foreign exchange transactions.
In order to achieve the above purpose, the present application provides the following technical solutions:
a method of processing a foreign exchange transaction, comprising:
the method comprises the steps that a first blockchain obtains a foreign exchange transaction request, wherein the foreign exchange transaction request comprises first user identity information, a first foreign exchange amount to be transacted and a first foreign exchange currency;
The first blockchain sending the foreign exchange transaction request to at least one second blockchain;
the first blockchain receives transaction feasibility information fed back by the at least one second blockchain respectively;
the transaction feasibility information corresponding to one blockchain refers to the sum of the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign currency and the first foreign exchange amount stored in the blockchain, and the maximum limit of the foreign exchange transaction of the first user identity information aiming at the first foreign currency;
and if the transaction feasibility information corresponding to at least a preset number of blockchains in the first blockchain and the at least one second blockchain characterizes that the sum of the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign exchange currency and the first foreign exchange amount stored by the first user identity information is smaller than or equal to the maximum foreign exchange amount of the first user identity information aiming at the first foreign exchange currency, generating an instruction for allowing the foreign exchange transaction request.
In an alternative embodiment, the sending the foreign exchange transaction request to at least one second blockchain includes:
Determining transaction feasibility information of the first blockchain;
and if the transaction feasibility information of the first blockchain characterizes that the sum of the historical transaction foreign exchange amount of the first user identity information stored by the first blockchain aiming at the first foreign exchange currency and the first foreign exchange amount is smaller than or equal to the maximum foreign exchange amount of the first user identity information aiming at the first foreign exchange currency, sending the foreign exchange transaction request to the at least one second blockchain.
In an alternative embodiment, the method further comprises:
if the transaction feasibility information corresponding to at least the preset number of blockchains in the first blockchain and the at least one second blockchain represents that the sum of the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign exchange currency and the first foreign exchange amount is smaller than or equal to the maximum foreign exchange amount of the first user identity information aiming at the first foreign exchange currency, a first block is created in the first blockchain;
the first block comprises a first block head and a first block main body, wherein the first block head stores characteristic values obtained based on the first user identity information, the first foreign exchange amount and the first foreign exchange currency, and characteristic values of a block head of a father block of the first block; the first block body comprises the first user identity information, the first foreign exchange amount and the first foreign exchange currency;
Sending an instruction for creating a block to the at least one second blockchain respectively, wherein the instruction for creating a block is used for indicating the at least one second blockchain to create a second block of the second blockchain respectively, the second block comprises a second block head and a second block main body, and the second block head stores characteristic values obtained based on the first user identity information, the first foreign exchange amount and the first foreign exchange currency and characteristic values of a block head of a father block of the second block; the second block body includes the first user identity information, the first foreign exchange amount, and the first foreign exchange currency.
In an alternative embodiment, the method further comprises:
acquiring a query history foreign exchange transaction request, wherein the query history foreign exchange transaction request comprises second user identity information, second foreign exchange currency and target history foreign exchange transaction time;
acquiring target historical foreign exchange transaction amount of the second user identity information aiming at the second foreign exchange currency at the target historical foreign exchange transaction time;
feeding back a query result containing the target historical foreign exchange transaction amount;
if receiving optimal block information representing that the first block chain is the fastest feedback query result in a plurality of block chains, monitoring the input of a foreign exchange transaction request;
The plurality of blockchains includes the first blockchain and the at least one second blockchain.
A foreign exchange transaction processing device for a first blockchain, comprising:
the system comprises a first acquisition module, a second acquisition module and a second acquisition module, wherein the first acquisition module is used for acquiring a foreign exchange transaction request, and the foreign exchange transaction request comprises first user identity information, a first foreign exchange amount to be transacted and a first foreign exchange currency;
a first sending module for sending the foreign exchange transaction request to at least one second blockchain;
the receiving module is used for receiving the transaction feasibility information fed back by the at least one second blockchain respectively;
the transaction feasibility information corresponding to one blockchain refers to the relation between the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign currency and the sum of the historical transaction foreign exchange amount and the first foreign exchange amount stored in the blockchain and the maximum amount of the foreign exchange transaction of the first user identity information aiming at the first foreign currency;
and the generation module is used for generating an instruction for allowing the foreign exchange transaction request if the sum of the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign exchange currency and the first foreign exchange amount stored by the transaction feasibility information characterization self corresponding to at least a preset number of blockchains in the first blockchain and the at least one second blockchain is smaller than or equal to the maximum foreign exchange amount of the first user identity information aiming at the first foreign exchange currency.
In an alternative embodiment, the sending module includes:
a determining unit configured to determine transaction feasibility information of the first blockchain;
and the sending unit is used for sending the foreign exchange transaction request to the at least one second blockchain if the transaction feasibility information of the first blockchain represents that the sum of the historical transaction foreign exchange amount of the first user identity information stored by the first blockchain aiming at the first foreign exchange currency and the first foreign exchange amount is smaller than or equal to the maximum foreign exchange amount of the first user identity information aiming at the first foreign exchange currency.
A readable storage medium having stored thereon a computer program, wherein the computer program, when executed by a processor, implements a method of processing a foreign exchange transaction as described in any of the above.
A foreign exchange transaction processing system, comprising:
an electronic device for determining a first blockchain from a plurality of blockchains, wherein the plurality of blockchains is referred to as a second blockchain in addition to the first blockchain;
the first blockchain is used for acquiring a foreign exchange transaction request, and the foreign exchange transaction request comprises first user identity information, a first foreign exchange amount to be transacted and a first foreign exchange currency; transmitting the foreign exchange transaction request to at least one second blockchain; comparing the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign exchange currency and the sum of the first foreign exchange amount, and obtaining transaction feasibility information according to the maximum foreign exchange amount of the first user identity information aiming at the first foreign exchange currency;
At least one second blockchain is used for acquiring historical transaction foreign exchange amount of the first user identity information stored by the second blockchain for the first foreign exchange currency after receiving the foreign exchange transaction request; comparing the sum of the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign exchange currency and the first foreign exchange amount with the maximum amount of the foreign exchange transaction of the first user identity information aiming at the first foreign exchange currency to obtain transaction feasibility information, and sending the transaction feasibility information to the first blockchain;
the first blockchain is further used for receiving transaction feasibility information fed back by at least one second blockchain respectively; and if the transaction feasibility information corresponding to at least a preset number of blockchains in the first blockchain and at least one second blockchain characterizes that the sum of the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign exchange currency and the first foreign exchange amount stored by the first user identity information is smaller than or equal to the maximum foreign exchange amount of the first user identity information aiming at the first foreign exchange currency, generating an instruction for allowing the foreign exchange transaction request.
In an alternative embodiment, the electronic device, when executing determining a first blockchain from a plurality of blockchains, is specifically configured to:
sending a query history foreign exchange transaction request to the plurality of blockchains, wherein the query history foreign exchange transaction request comprises second user identity information, second foreign exchange currency and target history foreign exchange transaction time;
receiving query results fed back by the plurality of block chains respectively, and recording receiving moments when the query results fed back by the plurality of block chains respectively are received; the query result of one blockchain comprises the target historical foreign exchange transaction amount of the second user identity aiming at the second foreign exchange currency at the target historical foreign exchange transaction time stored by the second user identity;
determining a blockchain corresponding to the minimum receiving time as the first blockchain;
and sending optimal block information to the first block chain, wherein the optimal block information characterizes the first block chain as the block chain with the fastest feedback query result in the plurality of block chains.
In an alternative embodiment, the first blockchain is further configured to:
and after receiving the optimal block information, monitoring the input of the foreign exchange transaction request.
According to the technical scheme, in the method for processing the foreign exchange transaction, after a first blockchain obtains a foreign exchange transaction request (the foreign exchange transaction request comprises first user identity information, first foreign exchange amount to be transacted and first foreign exchange currency), the foreign exchange transaction request is sent to at least one second blockchain; the first blockchain receives transaction feasibility information fed back by the at least one second blockchain respectively; and if the transaction feasibility information corresponding to at least a preset number of blockchains in the first blockchain and the at least one second blockchain represents that the sum of the historical transaction foreign exchange amount of the first user identity information corresponding to the first foreign exchange currency and the first foreign exchange amount stored by the first user identity information is smaller than or equal to the maximum foreign exchange amount of the first user identity information corresponding to the first foreign exchange currency, generating an instruction for allowing a foreign exchange transaction request. So that even if the historical foreign exchange transaction amount stored in a blockchain is changed, no economic loss is incurred to the customer. And, a shared database of the blockchain, data or information stored in it, have "can not forge", "the whole trace", "can trace back", "open transparent", "collective maintenance" characteristic, so the data stored in the blockchain has the performance of being unable to tamper. And, because the content stored by the plurality of blockchains is the same, even if one blockchain is damaged, whether the foreign exchange transaction can be executed can be judged based on other blockchains, so that the fact that the client cannot do the foreign exchange transaction is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings may be obtained according to the provided drawings without inventive effort to a person skilled in the art.
FIG. 1 is a block diagram of one implementation of a foreign exchange transaction processing system disclosed in an embodiment of the present application;
FIG. 2 is a schematic diagram of one implementation of blockchain storage information provided by embodiments of the present application;
FIG. 3 is a block diagram of another implementation of a foreign exchange transaction processing system provided in an embodiment of the present application;
FIG. 4 is a signaling diagram of an implementation of a method for processing a foreign exchange transaction according to an embodiment of the present application;
FIG. 5 is a flow chart of a blockchain creation block provided by an embodiment of the present application;
FIG. 6 is a signaling diagram illustrating a selection manner of a first blockchain according to an embodiment of the present disclosure;
fig. 7 is a schematic diagram of an implementation of a foreign exchange transaction processing device applied to a first blockchain according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The method for processing the foreign exchange transaction provided by the embodiment of the application can be applied to a foreign exchange transaction processing system shown in fig. 1.
As shown in fig. 1, the foreign exchange transaction processing system includes: a first blockchain 11, at least one second blockchain 12.
The foreign exchange transaction processing system can be applied to various application scenarios, and the application examples provide but are not limited to the following application scenarios.
First application scenario: a plurality of blockchains (including a first blockchain and at least one second blockchain) included in the foreign exchange transaction processing system are respectively deployed in a plurality of different banks; that is, one bank may be deployed with one or more blockchains.
In an alternative embodiment, each of the first blockchain and the at least one second blockchain includes a plurality of blocks, each block including one or more historical foreign exchange transaction information.
Optionally, the historical foreign exchange transaction information includes: the one or more user identity information is for a historical foreign exchange transaction amount of the one or more foreign exchange currencies at the at least one historical foreign exchange transaction time.
FIG. 2 is a schematic diagram of one implementation of blockchain storage information provided by embodiments of the present application.
Assuming that one of the first blockchain and the at least one second blockchain includes m blocks, the m blocks store information may be as shown in fig. 2. m is a positive integer greater than or equal to 1. The block 1 stores historical foreign exchange transaction information 1, the block 2 stores historical foreign exchange transaction information 2, …, and the block m stores historical foreign exchange transaction information m.
It can be appreciated that different blocks store historical foreign exchange transaction information corresponding to different user identity information respectively, or different blocks store different historical foreign exchange transaction information corresponding to the same user identity information. For example, taking fig. 2 as an example, block 1 stores first user identity information redeemed for dollars 1000 at month 1, 2019; block 2 stores the first user identity information redeemed for dollars 5000 at 2.2.2.2019.
It will be appreciated that the first blockchain and the at least one second blockchain store the same information, and in an alternative embodiment, if the client applies for a foreign exchange transaction at the bank, the first blockchain and the at least one second blockchain may be relied upon to determine whether the foreign exchange transaction is viable. May not need to be judged by the foreign exchange authority.
The second application scenario: a plurality of blockchains (the blockchains comprise a first blockchain and at least one second blockchain) contained in the foreign exchange transaction processing system are respectively deployed in a plurality of different banks and foreign exchange authorities; that is, one bank may be deployed with one or more blockchains; the foreign exchange authority may be deployed with one or more blockchains.
The second application scenario differs from the first application scenario in that one or more blockchains are also laid out in the foreign exchange management. If a client applies for a foreign exchange transaction at a bank, the first blockchain and at least one second blockchain can be used for judging whether the foreign exchange transaction is feasible. I.e. still to be judged by the foreign exchange authority.
Third application scenario: a plurality of blockchains including a first blockchain and at least one second blockchain) included in the foreign exchange transaction processing system are deployed in the foreign exchange management.
The content included in each blockchain in the second and third application scenarios may be referred to the description of the first application scenario, and will not be described herein.
In any of the three application scenarios, the first blockchain 11 is selected from a plurality of blockchains, and the first blockchain is the fastest responding blockchain among the plurality of blockchains. In the embodiment of the present application, the block chain that responds fastest among the block chains is called a first block chain, and other block chains are called second block chains.
It is to be appreciated that a first blockchain selected from a plurality of blockchains at different times may be different.
Referring to fig. 3, a block diagram of another implementation of a foreign exchange transaction processing system according to an embodiment of the present application is shown. In an alternative embodiment, the foreign exchange transaction processing system further includes an electronic device 31.
In an alternative embodiment, the electronic device 31 may be a mobile terminal such as a computer, a notebook, a desktop, a PAD, a smart phone, etc., and the electronic device 31 may also be a server or a cloud platform.
The electronic device 31 may send a query history foreign exchange transaction request to the n blockchains 32, the query history foreign exchange transaction request including the second user identity information, the second foreign exchange currency, and the target history foreign exchange transaction time. The electronic device 21 can obtain the query results fed back by the n blockchains, and the electronic device 31 takes the blockchain with the earliest feedback query result time in the n blockchains as the first blockchain; the blockchain other than the first blockchain among the n blockchains is used as the second blockchain.
Assuming that the time for the blockchain 1 to feed back the query result is 44 minutes, 50 seconds and 8 centiseconds in 5 months 1 day 12 points in 2019 in n blockchains; the time for the block chain 2 to feed back the query result is 2019, 5 months, 1 day, 12 points, 44 minutes, 50 seconds and 9 centiseconds; the time for the block chain 3 to feed back the query result is 2019, 5 months, 1 day, 12 points, 44 minutes, 51 seconds and 9 centiseconds; …; assuming that the time for the blockchain 1 to feed back the query result is earliest, blockchain 1 is the first blockchain and blockchain 2 through blockchain n are the second blockchain.
In an alternative embodiment, the electronic device 31 may be deployed in a foreign exchange authority; in an alternative embodiment, the electronic device 31 may be deployed in any bank.
In an alternative embodiment, in a second application scenario, the first blockchain is one that is deployed in the foreign exchange authority.
The method for processing a foreign exchange transaction according to the embodiment of the present application will be described below with reference to fig. 1, 2 and 3.
Referring to fig. 4, a signaling diagram of an implementation manner of a method for processing a foreign exchange transaction according to an embodiment of the present application is shown, where the method includes:
step S401: the first blockchain 11 obtains a foreign exchange transaction request including first user identity information, a first foreign exchange amount to be transacted, and a first foreign exchange currency.
The foreign exchange currencies may be the following currencies: french, swiss french, dollars, canadian, pounds, dutch shield, german mark, belgium french, euro, yen, australian element, and the like.
It will be appreciated that the types of the currencies are various, and that the embodiments of the present application are not intended to be exhaustive of all currencies, and that the embodiments of the present application are not limited to the types of the currencies.
The first foreign currency referred to in this embodiment of the present application may be any of the foreign currencies described above, and is referred to as the first foreign currency in this embodiment of the present application to distinguish it from the second foreign currency included in the subsequent query history foreign exchange request.
In an alternative embodiment, the second foreign currency is any of the above-mentioned foreign currencies, optionally the first foreign currency is the same as the second foreign currency, optionally the first foreign currency is different from the second foreign currency.
In a first application scenario, the foreign exchange transaction request may be entered by a bank staff at a first blockchain; alternatively, the foreign exchange transaction request may be obtained by the first blockchain 11 from the electronic device 31.
In a second application scenario, the request for the foreign exchange transaction may be obtained by the first blockchain from a server of a bank where the user applies for the foreign exchange transaction; alternatively, the foreign exchange transaction request is entered at the first blockchain by a bank or by a worker of a foreign exchange authority; alternatively, the foreign exchange transaction request may be obtained by the first blockchain 11 from the electronic device 31.
In a third application scenario, the request for the foreign exchange transaction may be obtained by the first blockchain from a server of a bank where the user applies for the foreign exchange transaction; alternatively, the request for the foreign exchange transaction is entered by a worker of the foreign exchange management at the first blockchain; alternatively, the foreign exchange transaction request may be obtained by the first blockchain 11 from the electronic device 31.
Step S402: the first blockchain 11 sends a foreign exchange transaction request to at least one second blockchain 12.
In an alternative embodiment, the first blockchain 11 receives the foreign exchange transaction request and then broadcasts the foreign exchange transaction request to the at least one second blockchain.
In an alternative embodiment, after the first blockchain receives the foreign exchange transaction request, determining transaction feasibility information of the first blockchain; and if the transaction feasibility information of the first blockchain characterizes that the sum of the historical transaction foreign exchange amount of the first user identity information stored by the first blockchain aiming at the first foreign exchange currency and the first foreign exchange amount is smaller than or equal to the maximum foreign exchange amount of the first user identity information aiming at the first foreign exchange currency, sending the foreign exchange request to the at least one second blockchain.
The maximum limit of the foreign exchange transaction is the maximum value of the foreign exchange which can be exchanged by the user in a preset time period.
In an alternative embodiment, the predetermined period of time may be at least one month, or at least one year, or the like. The embodiment of the application does not limit the preset time period.
Step S403: each second blockchain performs the steps of:
acquiring historical transaction foreign exchange amount of the first user identity information stored by the user per se aiming at a first foreign exchange currency;
Comparing the sum of the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign exchange currency and the first foreign exchange amount with the maximum amount of the foreign exchange transaction of the first user identity information aiming at the first foreign exchange currency to obtain transaction feasibility information;
the transaction feasibility information is sent to the first blockchain 11.
The maximum limit of the foreign exchange transaction is the maximum value of the foreign exchange which can be exchanged by the user in a preset time period.
In an alternative embodiment, the predetermined period of time may be at least one month, or at least one year, or the like. The embodiment of the application does not limit the preset time period.
In an alternative embodiment, the maximum amount of foreign exchange transactions for different users for the same foreign exchange currency may be different; alternatively, the maximum amount of foreign exchange transactions for different users for the same foreign exchange currency may be the same.
Assuming that the first user identity information is user identity information B, the foreign exchange currency is dollar, the first foreign exchange amount to be transacted is 15000, assuming that the maximum foreign exchange transaction limit of the user identity information B for dollar is not more than 50000 in one year, the historical transaction foreign exchange amounts of the user identity information B stored in one second blockchain are sequentially: the method comprises the following steps of exchanging 10000 dollars in 2019 1 month 1 day, exchanging 5000 dollars in 2019 5 month 2 days, and exchanging 6000 dollars in 2019 7 month 8 days; then, the second blockchain stores user identity information B corresponding to the sum of the historical transaction foreign exchange amount for the first foreign exchange currency and the first foreign exchange amount = 10000+5000+6000+15000 = 36000 < 50000.
Optionally, for any one of the first blockchain and the at least one second blockchain, if the sum of the historical transaction foreign exchange amount of the first user identity information for the first foreign exchange currency and the first foreign exchange amount stored is less than or equal to the maximum foreign exchange transaction amount of the first user identity information for the first foreign exchange currency, the transaction feasibility information is transaction feasibility. And if the sum of the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign exchange currency and the first foreign exchange amount is larger than the maximum foreign exchange transaction amount of the first user identity information aiming at the first foreign exchange currency, the transaction feasibility information is not feasible.
Step S404: the first blockchain 11 receives transaction feasibility information fed back by the at least one second blockchain respectively.
Step S405: if the transaction feasibility information corresponding to at least the preset number of blockchains in the first blockchain and the at least one second blockchain characterizes that the sum of the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign exchange currency and the first foreign exchange amount stored in the first blockchain and the at least one second blockchain is smaller than or equal to the maximum foreign exchange amount of the first user identity information aiming at the first foreign exchange currency, the first blockchain 11 generates an instruction for allowing the foreign exchange transaction request.
In an alternative embodiment, the predetermined number is selected in relation to the total number of the first blockchain and the at least one second blockchain, i.e., the predetermined number is greater than or equal to 51% (the total number of the first blockchain and the at least one second blockchain).
For example, the total number of first blockchains and the at least one second blockchain is 100, then the preset number is at least 51.
In an alternative embodiment, the predetermined number may be any integer value greater than or equal to 1 and less than or equal to the total number of the first blockchain and the at least one second blockchain.
Alternatively, the "instructions to allow the foreign exchange transaction request" refers to allowing the foreign exchange transaction request of the customer, i.e. allowing the customer to exchange the first foreign exchange amount of the first foreign exchange currency.
In the method for processing the foreign exchange transaction provided by the embodiment of the application, after a first blockchain obtains a foreign exchange transaction request (the foreign exchange transaction request comprises first user identity information, a first foreign exchange amount to be transacted and a first foreign exchange currency), the foreign exchange transaction request is sent to at least one second blockchain; the first blockchain receives transaction feasibility information fed back by the at least one second blockchain respectively; and if the transaction feasibility information corresponding to at least a preset number of blockchains in the first blockchain and the at least one second blockchain represents that the sum of the historical transaction foreign exchange amount of the first user identity information corresponding to the first foreign exchange currency and the first foreign exchange amount stored by the first user identity information is smaller than or equal to the maximum foreign exchange amount of the first user identity information corresponding to the first foreign exchange currency, generating an instruction for allowing a foreign exchange transaction request. So that even if the historical foreign exchange transaction amount stored in a blockchain is changed, no economic loss is incurred to the customer. And, a shared database of the blockchain, data or information stored in it, have "can not forge", "the whole trace", "can trace back", "open transparent", "collective maintenance" characteristic, so the data stored in the blockchain has the performance of being unable to tamper. And, because the content stored by the plurality of blockchains is the same, even if one blockchain is damaged, whether the foreign exchange transaction can be executed can be judged based on other blockchains, so that the fact that the client cannot do the foreign exchange transaction is avoided.
In an optional embodiment, if the transaction feasibility information corresponding to at least the preset number of blockchains in the first blockchain and the at least one second blockchain characterizes that the sum of the historical transaction foreign exchange amount of the first user identity information for the first foreign exchange currency and the first foreign exchange amount stored by the first blockchain is less than or equal to the maximum foreign exchange amount of the first user identity information for the first foreign exchange currency, the first blockchain may further execute the following operations. As shown in fig. 5, a flowchart of creating a block for a blockchain according to an embodiment of the present application includes:
step S501: the first blockchain 11 creates a first block in the first blockchain.
The first block comprises a first block head and a first block main body, wherein the first block head stores characteristic values obtained based on the first user identity information, the amount to be subjected to first foreign exchange and the first foreign exchange currency, and characteristic values of a block head of a father block of the first block; the first block body includes the first user identity information, the first foreign exchange amount, and the first foreign exchange currency.
Still referring to fig. 2, if the first blockchain includes m blocks as shown in fig. 2, the first block is the (m+1) th block.
The block header of the (m+1) -th block stores the characteristic value of the block header of the (m) -th block.
In an alternative embodiment, the first user identity information, the first foreign exchange amount and the first foreign exchange currency may be subjected to a preset operation to obtain a feature value.
Alternatively, the preset operation may be an irreversible operation, an asymmetric encryption algorithm, a hash algorithm, or the like.
Step S502: the first blockchain 11 sends instructions to the at least one second blockchain to create blocks, respectively.
The instruction for creating the block is to instruct the at least one second blockchain to create second blocks of the second blockchain, wherein the second blocks comprise second block heads and second block main bodies, and the second block heads store characteristic values obtained based on the first user identity information, the first foreign exchange amount and the first foreign exchange currency and characteristic values of block heads of father blocks of the second blocks; the second block body includes the first user identity information, the first foreign exchange amount, and the first foreign exchange currency.
In an alternative embodiment, the first blockchain is the fastest responding blockchain of the plurality of blockchains. In the embodiment of the present application, the block chain that responds fastest among the block chains is called a first block chain, and other block chains are called second block chains.
The selection process of the first blockchain is described below from the blockchain perspective, and the method shown in fig. 3 may be incorporated.
As shown in fig. 6, a signaling diagram of a selection manner of a first blockchain according to an embodiment of the present application is provided, where the method includes:
in step S601, the electronic device 31 transmits a query history foreign exchange transaction request to the plurality of blockchains 32.
Wherein the query historical foreign exchange transaction request includes second user identity information, a second foreign exchange currency, and a target historical foreign exchange transaction time.
The second user identity information is any user identity information; the second foreign exchange currency is any foreign exchange currency; the target historical foreign exchange transaction time is any historical foreign exchange transaction time.
The total number of the plurality of blockchains is illustrated as n in fig. 6.
Step S602: each of the plurality of blockchains performs the following operations:
obtaining a target historical foreign exchange transaction amount of the second user identity information for the second foreign exchange currency at the target historical foreign exchange transaction time;
and feeding back a query result containing the target historical foreign exchange transaction amount.
Each blockchain includes a plurality of user identity information for a historical foreign exchange transaction amount for one or more foreign exchange currencies at one or more historical foreign exchange transaction times.
Assuming that the second user identity information is user identity information C, the second foreign exchange currency is dollars, and the target historical foreign exchange transaction time is 2019, 5 months, and 1 day. Then each blockchain obtains the dollar amount that user identity information C redeemed at 2019, 5, 1, say $5000. The query result includes $ 5000.
Step S603: the electronic device 31 receives the query results fed back by the plurality of blockchains respectively, and records the receiving time when the query results fed back by the plurality of blockchains respectively are received; and determining the blockchain corresponding to the minimum receiving time as the first blockchain.
Assuming that the total number of the plurality of blockchains is n, assuming that, among the n blockchains, the time for the electronic device 31 to receive the query result of the blockchain 1 is 2019, 5 months, 1 day, 12 points, 44 minutes, 50 seconds, 8 centiseconds; the time of the query result of the block chain 2 is 2019, 5 months, 1 day, 12 points, 44 minutes, 50 seconds and 9 centiseconds; the time of the query result of the block chain 3 is 2019, 5 months, 1 day, 12 points, 44 minutes, 51 seconds and 9 centiseconds; …; assuming that the time to receive the query result of blockchain 1 is minimal, blockchain 1 is the first blockchain and blockchain 2 through blockchain n are all the second blockchain.
Step S604: the electronic device 31 sends the optimal block information to the first blockchain.
The optimal block information characterizes the first blockchain as the blockchain of the fastest feedback query result among the plurality of blockchains.
The first blockchain is illustrated in fig. 6 as blockchain 1.
Step S605: after receiving the optimal block information, the first blockchain 11 monitors the input of the foreign exchange transaction request.
In an alternative embodiment, the foreign exchange transaction requests may be monitored every set period of time.
The method is described in detail in the embodiments disclosed in the application, and the method can be implemented by using various devices, so that the application also discloses a device, and a specific embodiment is given in the following detailed description.
As shown in fig. 7, a schematic diagram of one implementation of a foreign exchange transaction processing device applied to a first blockchain according to an embodiment of the present application is provided, where the device includes:
a first obtaining module 71, configured to obtain a foreign exchange transaction request, where the foreign exchange transaction request includes first user identity information, a first foreign exchange amount to be transacted, and a first foreign exchange currency;
a first sending module 72 for sending the foreign exchange transaction request to at least one second blockchain;
a receiving module 73, configured to receive transaction feasibility information fed back by the at least one second blockchain respectively;
The transaction feasibility information corresponding to one blockchain refers to the relation between the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign currency and the sum of the historical transaction foreign exchange amount and the first foreign exchange amount stored in the blockchain and the maximum amount of the foreign exchange transaction of the first user identity information aiming at the first foreign currency;
and the generating module 74 is configured to generate an instruction for allowing the foreign exchange transaction request if, in the first blockchain and the at least one second blockchain, at least transaction feasibility information corresponding to a preset number of blockchains characterizes that a sum of a historical transaction foreign exchange amount of the first user identity information for the first foreign exchange currency and the first foreign exchange amount stored by the first blockchain and the at least one second blockchain is less than or equal to a maximum foreign exchange amount of the first user identity information for the first foreign exchange currency.
Optionally, the sending module includes:
a determining unit configured to determine transaction feasibility information of the first blockchain;
and the sending unit is used for sending the foreign exchange transaction request to the at least one second blockchain if the transaction feasibility information of the first blockchain represents that the sum of the historical transaction foreign exchange amount of the first user identity information stored by the first blockchain aiming at the first foreign exchange currency and the first foreign exchange amount is smaller than or equal to the maximum foreign exchange amount of the first user identity information aiming at the first foreign exchange currency.
Optionally, the method further comprises:
the creating module is configured to create a first block in the first blockchain if, in the first blockchain and the at least one second blockchain, at least transaction feasibility information corresponding to the preset number of blockchains characterizes that a sum of a historical transaction foreign exchange amount of the first user identity information for the first foreign exchange currency and the first foreign exchange amount stored by the first user identity information per se is less than or equal to a foreign exchange transaction maximum amount of the first user identity information for the first foreign exchange currency;
the first block comprises a first block head and a first block main body, wherein the first block head stores characteristic values obtained based on the first user identity information, the first foreign exchange amount and the first foreign exchange currency, and characteristic values of a block head of a father block of the first block; the first block body comprises the first user identity information, the first foreign exchange amount and the first foreign exchange currency;
the second sending module is used for respectively sending an instruction for creating a block to the at least one second block chain, wherein the instruction for creating the block is used for indicating the at least one second block chain to respectively create a second block of the second sending module, the second block comprises a second block head and a second block main body, and the second block head stores characteristic values obtained based on the first user identity information, the first foreign exchange amount and the first foreign exchange currency and characteristic values of a block head of a father block of the second block; the second block body includes the first user identity information, the first foreign exchange amount, and the first foreign exchange currency.
Optionally, the method further comprises:
the second acquisition module is used for acquiring a query history foreign exchange transaction request, wherein the query history foreign exchange transaction request comprises second user identity information, second foreign exchange currency and target history foreign exchange transaction time;
a third obtaining module, configured to obtain a target historical foreign exchange transaction amount of the second user identity information for the second foreign exchange currency at the target historical foreign exchange transaction time;
the third sending module is used for feeding back a query result containing the target historical foreign exchange transaction amount;
the monitoring module is used for monitoring the input of a foreign exchange transaction request if receiving optimal block information representing that the first block chain is the fastest feedback query result in a plurality of block chains;
the plurality of blockchains includes the first blockchain and the at least one second blockchain.
The embodiment of the application also provides a readable storage medium, on which a computer program is stored, the computer program, when executed by a processor, implementing the method for processing a foreign exchange transaction according to any one of the above.
The features described in the respective embodiments in the present specification may be replaced with each other or combined with each other. For device or system class embodiments, the description is relatively simple as it is substantially similar to method embodiments, with reference to the description of method embodiments in part.
It is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. The software modules may be disposed in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A method of processing a foreign exchange transaction, comprising:
the method comprises the steps that a first blockchain obtains a foreign exchange transaction request, wherein the foreign exchange transaction request comprises first user identity information, a first foreign exchange amount to be transacted and a first foreign exchange currency;
the first blockchain sending the foreign exchange transaction request to at least one second blockchain;
the first blockchain receives transaction feasibility information fed back by the at least one second blockchain respectively;
the transaction feasibility information corresponding to one blockchain refers to the sum of the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign exchange currency and the first foreign exchange amount stored in the blockchain, and the maximum limit of the foreign exchange transaction of the first user identity information aiming at the first foreign exchange currency;
And if the transaction feasibility information corresponding to at least a preset number of blockchains in the first blockchain and the at least one second blockchain characterizes that the sum of the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign exchange currency and the first foreign exchange amount stored by the first user identity information is smaller than or equal to the maximum foreign exchange amount of the first user identity information aiming at the first foreign exchange currency, generating an instruction for allowing the foreign exchange transaction request.
2. The method of claim 1, wherein said sending the request for a foreign exchange transaction to at least one second blockchain comprises:
determining transaction feasibility information of the first blockchain;
and if the transaction feasibility information of the first blockchain characterizes that the sum of the historical transaction foreign exchange amount of the first user identity information stored by the first blockchain aiming at the first foreign exchange currency and the first foreign exchange amount is smaller than or equal to the maximum foreign exchange amount of the first user identity information aiming at the first foreign exchange currency, sending the foreign exchange transaction request to the at least one second blockchain.
3. The method of processing a foreign exchange transaction according to claim 1 or 2, further comprising:
If the transaction feasibility information corresponding to at least the preset number of blockchains in the first blockchain and the at least one second blockchain represents that the sum of the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign exchange currency and the first foreign exchange amount is smaller than or equal to the maximum foreign exchange amount of the first user identity information aiming at the first foreign exchange currency, a first block is created in the first blockchain;
the first block comprises a first block head and a first block main body, wherein the first block head stores characteristic values obtained based on the first user identity information, the first foreign exchange amount and the first foreign exchange currency, and characteristic values of a block head of a father block of the first block; the first block body comprises the first user identity information, the first foreign exchange amount and the first foreign exchange currency;
sending an instruction for creating a block to the at least one second blockchain respectively, wherein the instruction for creating a block is used for indicating the at least one second blockchain to create a second block of the second blockchain respectively, the second block comprises a second block head and a second block main body, and the second block head stores characteristic values obtained based on the first user identity information, the first foreign exchange amount and the first foreign exchange currency and characteristic values of a block head of a father block of the second block; the second block body includes the first user identity information, the first foreign exchange amount, and the first foreign exchange currency.
4. The method of processing a foreign exchange transaction according to claim 1 or 2, further comprising:
acquiring a query history foreign exchange transaction request, wherein the query history foreign exchange transaction request comprises second user identity information, second foreign exchange currency and target history foreign exchange transaction time;
acquiring target historical foreign exchange transaction amount of the second user identity information aiming at the second foreign exchange currency at the target historical foreign exchange transaction time;
feeding back a query result containing the target historical foreign exchange transaction amount;
if receiving optimal block information representing that the first block chain is the fastest feedback query result in a plurality of block chains, monitoring the input of a foreign exchange transaction request;
the plurality of blockchains includes the first blockchain and the at least one second blockchain.
5. A foreign exchange transaction processing device, for use with a first blockchain, comprising:
the system comprises a first acquisition module, a second acquisition module and a second acquisition module, wherein the first acquisition module is used for acquiring a foreign exchange transaction request, and the foreign exchange transaction request comprises first user identity information, a first foreign exchange amount to be transacted and a first foreign exchange currency;
a first sending module for sending the foreign exchange transaction request to at least one second blockchain;
The receiving module is used for receiving the transaction feasibility information fed back by the at least one second blockchain respectively;
the transaction feasibility information corresponding to one blockchain refers to the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign exchange currency stored in the blockchain and the sum of the historical transaction foreign exchange amount and the first foreign exchange amount, and the relationship between the historical transaction foreign exchange amount and the sum of the historical transaction foreign exchange amount aiming at the first user identity information aiming at the first foreign exchange currency;
and the generation module is used for generating an instruction for allowing the foreign exchange transaction request if the sum of the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign exchange currency and the first foreign exchange amount stored by the transaction feasibility information characterization self corresponding to at least a preset number of blockchains in the first blockchain and the at least one second blockchain is smaller than or equal to the maximum foreign exchange amount of the first user identity information aiming at the first foreign exchange currency.
6. The foreign exchange transaction processing device of claim 5, wherein the transmission module includes:
a determining unit configured to determine transaction feasibility information of the first blockchain;
And the sending unit is used for sending the foreign exchange transaction request to the at least one second blockchain if the transaction feasibility information of the first blockchain represents that the sum of the historical transaction foreign exchange amount of the first user identity information stored by the first blockchain aiming at the first foreign exchange currency and the first foreign exchange amount is smaller than or equal to the maximum foreign exchange amount of the first user identity information aiming at the first foreign exchange currency.
7. A readable storage medium having stored thereon a computer program, which when executed by a processor, implements a method of processing a foreign exchange transaction according to any of the preceding claims 1 to 4.
8. A foreign exchange transaction processing system, comprising:
an electronic device for determining a first blockchain from a plurality of blockchains, wherein the plurality of blockchains is referred to as a second blockchain in addition to the first blockchain;
the first blockchain is used for acquiring a foreign exchange transaction request, and the foreign exchange transaction request comprises first user identity information, a first foreign exchange amount to be transacted and a first foreign exchange currency; transmitting the foreign exchange transaction request to at least one second blockchain; comparing the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign exchange currency and the sum of the first foreign exchange amount, and obtaining transaction feasibility information according to the maximum foreign exchange amount of the first user identity information aiming at the first foreign exchange currency;
At least one second blockchain is used for acquiring historical transaction foreign exchange amount of the first user identity information stored by the second blockchain for the first foreign exchange currency after receiving the foreign exchange transaction request; comparing the sum of the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign exchange currency and the first foreign exchange amount with the maximum amount of the foreign exchange transaction of the first user identity information aiming at the first foreign exchange currency to obtain transaction feasibility information, and sending the transaction feasibility information to the first blockchain;
the first blockchain is further used for receiving transaction feasibility information fed back by at least one second blockchain respectively; and if the transaction feasibility information corresponding to at least a preset number of blockchains in the first blockchain and at least one second blockchain characterizes that the sum of the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign exchange currency and the first foreign exchange amount stored by the first user identity information is smaller than or equal to the maximum foreign exchange amount of the first user identity information aiming at the first foreign exchange currency, generating an instruction for allowing the foreign exchange transaction request.
9. The foreign exchange transaction processing system of claim 8, wherein the electronic device, when executing the determination of the first blockchain from the plurality of blockchains, is specifically configured to:
sending a query history foreign exchange transaction request to the plurality of blockchains, wherein the query history foreign exchange transaction request comprises second user identity information, second foreign exchange currency and target history foreign exchange transaction time;
receiving query results fed back by the plurality of block chains respectively, and recording receiving moments when the query results fed back by the plurality of block chains respectively are received; the query result of one blockchain comprises the target historical foreign exchange transaction amount of the second user identity aiming at the second foreign exchange currency at the target historical foreign exchange transaction time stored by the second user identity;
determining a blockchain corresponding to the minimum receiving time as the first blockchain;
and sending optimal block information to the first block chain, wherein the optimal block information characterizes the first block chain as the block chain with the fastest feedback query result in the plurality of block chains.
10. The foreign exchange transaction processing system of claim 9, wherein the first blockchain is further to:
and after receiving the optimal block information, monitoring the input of the foreign exchange transaction request.
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