CN111445248A - Foreign exchange transaction processing method, device and system and storage medium - Google Patents
Foreign exchange transaction processing method, device and system and storage medium Download PDFInfo
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Abstract
The application provides a foreign exchange transaction processing method, a device, a system and a storage medium, wherein after a first block chain obtains a foreign exchange transaction request, the foreign exchange transaction request is sent to at least one second block chain; the first block chain receives transaction feasibility information fed back by at least one second block chain respectively; 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 less than or equal to the foreign exchange transaction maximum amount, generating an instruction for allowing the foreign exchange transaction request. So even if the historical foreign exchange transaction amount stored in a blockchain is changed, no economic loss is caused to the client. And the data stored in the blockchain has the non-tampering performance. Because the stored contents of a plurality of block chains are the same, even if one block chain is damaged, the client cannot perform foreign exchange transaction.
Description
Technical Field
The present application relates to the field of bank foreign exchange data supervision, and more particularly, to a method, an apparatus, a system, and a storage medium for processing foreign exchange transactions.
Background
Foreign exchange transactions are the exchange of one country's currency with another. The customer can apply for the foreign exchange transaction from the bank, and after receiving the foreign exchange transaction request from the customer, the bank will determine whether the foreign exchange transaction is feasible or not, for example, query whether the sum of the historical foreign exchange transaction amount and the current foreign exchange transaction amount of the customer exceeds the set amount or not. And the bank allows the foreign exchange transaction request of the client after receiving the feasible information of the foreign exchange transaction fed back by the foreign exchange management office.
If the historical foreign exchange transaction amount of the customer stored by the foreign exchange management office is changed or the storage device of the foreign exchange management office storing the historical foreign exchange transaction amount of the customer is damaged, the customer may not be able to perform the foreign exchange transaction.
Disclosure of Invention
In view of the above, the present application provides a foreign exchange transaction processing method, device, system and storage medium.
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 acquires 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 sends the foreign exchange transaction request to at least one second blockchain;
the first block chain receives transaction feasibility information fed back by the at least one second block chain respectively;
the transaction feasibility information corresponding to one blockchain refers to the relationship between the sum of the historical transaction foreign exchange amount of the first user identity information for the first foreign currency and the first foreign exchange amount stored in the blockchain and the maximum foreign exchange transaction amount of the first user identity information for the first foreign currency;
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 for the first foreign exchange currency and the first foreign exchange amount stored by the first user identity information is less than or equal to the foreign exchange transaction maximum amount of the first user identity information for the first foreign exchange currency, generating an instruction for allowing the foreign exchange transaction request.
In an optional embodiment, said sending said foreign exchange transaction request 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 represents 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 in the first blockchain is less than or equal to the foreign exchange transaction maximum amount of the first user identity information for the first foreign exchange currency, sending the foreign exchange transaction request to the at least one second blockchain.
In an optional embodiment, 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 for the first foreign exchange currency and the first foreign exchange amount stored by the first user identity information is less than or equal to the foreign exchange transaction maximum amount of the first user identity information for 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, and the first block head stores a characteristic value obtained based on the first user identity information, the first foreign exchange amount and the first foreign exchange currency, and a characteristic value of a block head of a parent block of the first block; the first block body comprises the first user identity information, the first foreign currency amount and the first foreign currency type;
sending a block creating instruction to the at least one second block chain respectively, wherein the block creating instruction is an instruction for instructing the at least one second block chain to create own second blocks respectively, each second block comprises a second block head and a second block main body, and the second block head stores therein a feature value obtained based on the first user identity information, the first foreign currency amount and the first foreign currency type, and a feature value of a block head of a parent block of the second block; the second block body includes the first subscriber identity information, the first foreign currency amount, and the first foreign currency type.
In an optional embodiment, further comprising:
acquiring a historical foreign exchange transaction query request, wherein the historical foreign exchange transaction query request comprises second user identity information, a second foreign exchange currency and target historical foreign exchange transaction time;
acquiring 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;
feeding back a query result containing the target historical foreign exchange transaction amount;
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 the plurality of block chains;
the plurality of blockchains includes the first blockchain and the at least one second blockchain.
A foreign exchange transaction processing device applied to a first block chain comprises:
the system comprises a first acquisition module, a second acquisition module and a third 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, configured to send 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 relationship between the historical transaction foreign exchange amount of the first user identity information stored in the blockchain for the first foreign currency type, the sum of the historical transaction foreign exchange amount and the first foreign exchange amount, and the maximum foreign exchange transaction amount of the first user identity information for the first foreign currency type;
a generating module, configured to generate an instruction for allowing the foreign exchange transaction request if, in the first blockchain and the at least one second blockchain, the transaction feasibility information corresponding to at least a preset number of blockchains represents 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 generating module for the first user identity information is less than or equal to a foreign exchange transaction maximum amount of the first user identity information for the first foreign exchange currency.
In an optional embodiment, the sending module includes:
the determining unit is used for determining the transaction feasibility information of the first block chain;
a sending unit, configured to send the foreign exchange transaction request to the at least one second blockchain if the transaction feasibility information of the first blockchain indicates 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 in the first blockchain is less than or equal to a foreign exchange transaction maximum amount of the first user identity information for the first foreign exchange currency.
A readable storage medium, having a computer program stored thereon, wherein the computer program, when executed by a processor, implements a method for processing a foreign exchange transaction as described in any one of the above.
A foreign exchange transaction processing system comprising:
the method comprises the steps of determining a first blockchain from a plurality of blockchains, wherein the plurality of blockchains except the first blockchain are called second blockchains;
the first block chain is used for acquiring 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; sending the foreign exchange transaction request to at least one second blockchain; comparing the sum of the historical transaction foreign exchange amount of the first foreign exchange currency for which the first user identity information is stored with the first foreign exchange amount with the size of the foreign exchange transaction maximum amount of the first foreign exchange currency corresponding to the first user identity information to obtain transaction feasibility information;
the at least one second block chain is used for acquiring historical transaction foreign exchange amount of the first user identity information aiming at the first foreign exchange currency, which is stored by the second block chain after the foreign exchange transaction request is received; comparing the sum of the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign exchange currency with the first foreign exchange amount, obtaining transaction feasibility information aiming at the size of the foreign exchange transaction maximum amount of the first foreign exchange currency by the first user identity information, and sending the transaction feasibility information to the first block chain;
the first block chain is further used for receiving transaction feasibility information fed back by at least one second block chain respectively; 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 for the first foreign exchange currency and the first foreign exchange amount stored by the first user identity information is less than or equal to the foreign exchange transaction maximum amount of the first user identity information for the first foreign exchange currency, and an instruction allowing the foreign exchange transaction request is generated.
In an optional embodiment, when determining the first blockchain from the plurality of blockchains, the electronic device is specifically configured to:
sending a query historical foreign exchange transaction request to the plurality of blockchains, wherein the query historical foreign exchange transaction request comprises second user identity information, a second foreign exchange currency and a target historical foreign exchange transaction time;
receiving the query results fed back by the block chains respectively, and recording the receiving time when the query results fed back by the block chains respectively are received; the query result of one blockchain comprises a target historical foreign exchange transaction amount of the second user identity stored in the blockchain aiming at the second foreign exchange currency at the target historical foreign exchange transaction time;
determining a block chain corresponding to the minimum receiving time as the first block chain;
and sending optimal block information to the first block chain, wherein the optimal block information represents that the first block chain is the block chain which feeds back the query result fastest in the plurality of block chains.
In an optional embodiment, the first blockchain is further configured to:
and after receiving the optimal block information, monitoring the input of a foreign exchange transaction request.
According to the technical scheme, in the foreign exchange transaction processing method provided by the application, after a foreign exchange transaction request is obtained by a first blockchain (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 block chain receives transaction feasibility information fed back by the at least one second block chain respectively; if the transaction feasibility information representations respectively corresponding to at least a preset number of blockchains in the first blockchain and the at least one second blockchain indicate 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 user identity information is less than or equal to the foreign exchange transaction maximum amount of the first user identity information for the first foreign exchange currency, and an instruction allowing a foreign exchange transaction request is generated. So even if the historical foreign exchange transaction amount stored in a blockchain is changed, no economic loss is caused to the client. Moreover, the block chain shares the database, and the data or information stored in the database has the characteristics of being unforgeable, being traceable in the whole process, being traceable, being publicly transparent, being maintained in a collective mode and the like, so that the data stored in the block chain has the property of being not falsified. Moreover, because the contents stored in the plurality of blockchains are the same, even if one blockchain is damaged, whether the foreign exchange transaction can be executed can be judged based on other blockchains, and the condition that the client cannot perform the foreign exchange transaction can be avoided.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
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 illustrating an implementation manner of storing information in a blockchain according to an embodiment of the present disclosure;
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 manner of a foreign exchange transaction processing method according to an embodiment of the present application;
fig. 5 is a flowchart of a blockchain creation block according to an embodiment of the present application;
fig. 6 is a signaling diagram of a selection manner of a first block chain according to an embodiment of the present application;
fig. 7 is a schematic diagram of an implementation manner of the fx transaction processing apparatus applied to the first blockchain according to the embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The foreign exchange transaction processing method provided by the embodiment of the application can be applied to the foreign exchange transaction processing system shown in fig. 1.
As shown in fig. 1, the foreign exchange transaction processing system includes: a first block chain 11, at least one second block chain 12.
The foreign exchange transaction processing system can be applied to various application scenarios, and the embodiment of the application provides, but is not limited to, the following application scenarios.
First application scenario: a plurality of block chains (including a first block chain and at least one second block chain) contained in the foreign exchange transaction processing system are respectively deployed in a plurality of different banks; that is, a bank may be deployed with one or more blockchains.
In an optional embodiment, each blockchain of the first blockchain and the at least one second blockchain comprises a plurality of blocks, and each block comprises 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 historical foreign exchange transaction amounts for one or more foreign exchange currencies at least one historical foreign exchange transaction time.
Fig. 2 is a schematic diagram illustrating an implementation manner of storing information for a block chain according to an embodiment of the present application.
Assuming that one of the first block chain and the at least one second block chain comprises m blocks, the m blocks store information as shown in fig. 2. m is a positive integer greater than or equal to 1. Block 1 stores history foreign exchange transaction information 1, block 2 stores history foreign exchange transaction information 2 and …, and block m stores history foreign exchange transaction information m.
It can be understood that different blocks store different pieces of historical foreign exchange transaction information corresponding to different pieces of user identity information, or different blocks store different pieces of historical foreign exchange transaction information corresponding to the same piece of user identity information. For example, taking fig. 2 as an example, block 1 stores the first user identity information as $ 1000 to $ 1 in 2019; block 2 stores the first user identity information as exchanged for $ 5000 on 2 months and 2 days in 2019.
It is to be understood that the first blockchain and the at least one second blockchain store the same information, and in an alternative embodiment, if the customer applies for the foreign exchange transaction at the bank, the first blockchain and the at least one second blockchain may be relied on to determine whether the foreign exchange transaction is feasible. It may not be necessary to make a judgment by the foreign exchange authority.
Second application scenario: the foreign exchange transaction processing system comprises a plurality of block chains (the block chains comprise a first block chain and at least one second block chain) which are respectively deployed in a plurality of different banks and foreign exchange management offices; 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 authority. That is, if there is a client applying for the foreign exchange transaction in the bank, the first blockchain and the at least one second blockchain can be used to determine whether the foreign exchange transaction is feasible. I.e. still to be judged by the foreign exchange authority.
The third application scenario: the fx transaction processing system includes a plurality of blockchains including a first blockchain and at least one second blockchain) each deployed in a fx management office.
The content of each block chain in the second and third application scenarios may refer to the description of the first application scenario, and is not described herein again.
In any of the three application scenarios, the first blockchain 11 is selected from a plurality of blockchains, and the first blockchain is a blockchain with the fastest response among the plurality of blockchains. In the embodiment of the present application, a block chain with the fastest response among a plurality of block chains is referred to as a first block chain, and other block chains are referred to as second block chains.
It is to be understood that the first blockchain selected from the plurality of blockchains at different times may be different.
Please refer to fig. 3, which is a block diagram of another implementation manner of the foreign exchange transaction processing system according to an embodiment of the present application. In an alternative embodiment, the foreign exchange transaction processing system further comprises an electronic device 31.
In an optional embodiment, the electronic device 31 may be a mobile terminal such as a computer, a laptop, a desktop, a PAD, and a smart phone, and the electronic device 31 may also be a server or a cloud platform.
The electronic device 31 may send a query historical fx trade request to the n blockchains 32, the query historical fx trade request including the second user identity information, the second fx currency, and the target historical fx trade time. The electronic device 21 may obtain the query results fed back by the n block chains, and the electronic device 31 takes the block chain with the earliest query result feedback time in the n block chains as the first block chain; and the block chains except the first block chain in the n block chains are used as second block chains.
Suppose that, in the n blockchains, the time for the blockchain 1 to feed back the query result is 2019, 5, 1, 12, 44 minutes, 50 seconds, 8 centiseconds; the time for feeding back the query result by the blockchain 2 is 2019, 5, 1, 12, 44, 50, second 9 centi-second; the time for the block chain 3 to feed back the query result is 2019, 5, 1, 12, 44 minutes, 51 seconds and 9 centiseconds; …, respectively; assuming that the time for feeding back the query result by the blockchain 1 is earliest, the blockchain 1 is the first blockchain, and the blockchains 2 to n are all the second blockchains.
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 optional embodiment, in the second application scenario, the first blockchain is a blockchain deployed in the foreign exchange management office.
The foreign exchange transaction processing method provided by the embodiment of the present application is described below with reference to fig. 1, fig. 2, and fig. 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, which includes first user identity information, a first foreign exchange amount to be transacted, and a first foreign exchange currency.
The foreign currency may be of the following currency: french farads, swiss farads, dollars, canadian yuan, pound, netherlands shield, german mark, belgium farads, euros, japanese yuan, australian yuan, and the like.
It is understood that there are many types of foreign currency, and the embodiments of the present application do not exhaust all the currency, and the embodiments of the present application do not limit the types of foreign currency.
The first foreign currency mentioned in the embodiments of the present application may be any of the above-mentioned foreign currency, and the first foreign currency is referred to as the first foreign currency in the embodiments of the present application in order to distinguish it from the second foreign currency included in the subsequent query history foreign currency transaction request.
In an alternative embodiment, the second foreign currency is any one 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 input by a bank worker in 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 fx transaction request may be obtained by the first blockchain from a server of a bank where the user applies for the fx transaction; or, the foreign exchange transaction request is input by a bank or a staff of a foreign exchange management office in the first blockchain; 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 fx transaction request may be obtained by the first blockchain from a server of a bank where the user applies for the fx transaction; or, the fx transaction request is input by a staff of the fx management office in 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, upon receiving the foreign exchange transaction request, sends a broadcast of the foreign exchange transaction request to the at least one second blockchain.
In an optional embodiment, after the first block link receives the foreign exchange transaction request, determining transaction feasibility information of the first block link; and if the transaction feasibility information of the first block chain represents 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 in the first block chain is less than or equal to the foreign exchange transaction maximum amount of the first user identity information for the first foreign exchange currency, sending the foreign exchange transaction request to the at least one second block chain.
The foreign exchange transaction maximum limit is the maximum value of foreign exchanges which can be exchanged by the user within a preset time period.
In an alternative embodiment, the predetermined time period may be at least one month, or at least one year, etc. The preset time period is not limited in the embodiments of the present application.
Step S403: each second blockchain performs the following steps:
acquiring historical transaction foreign exchange amount of the first user identity information stored in the mobile terminal 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 with the first foreign exchange amount, and obtaining transaction feasibility information according to the size of the first user identity information aiming at the foreign exchange transaction maximum amount of the first foreign exchange currency;
the transaction feasibility information is sent to the first blockchain 11.
The foreign exchange transaction maximum limit is the maximum value of foreign exchanges which can be exchanged by the user within a preset time period.
In an alternative embodiment, the predetermined time period may be at least one month, or at least one year, etc. The preset time period is not limited in the embodiments of the present application.
In an alternative embodiment, the maximum amount of foreign exchange transactions for different users in 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 currency of the foreign exchange is U.S. dollars, the amount of the first foreign exchange to be traded is 15000, assuming that the maximum amount of the user identity information B for the foreign exchange trading of U.S. dollars is not more than 50000 in one year, the historical trading foreign exchange amounts of the user identity information B stored in a second blockchain are sequentially: exchanging for 10000 dollars in 1 month and 1 month in 2019, exchanging for 5000 dollars in 5 month and 2 month in 2019, and exchanging for 6000 dollars in 7 month and 8 month in 2019; then, the sum of the first foreign exchange amount and the historical transaction foreign exchange amount for the first foreign exchange currency corresponding to the user identity information B stored in the second blockchain is 10000+5000+6000+15000, 36000 and 50000.
Optionally, for any block chain of the first block chain and the at least one second block chain, 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 is less than or equal to the foreign exchange transaction maximum amount of the first user identity information for the first foreign exchange currency, the transaction feasibility information is transaction feasible. And if the sum of the stored historical transaction foreign exchange amount of the first user identity information for 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 for the first foreign exchange currency, the transaction feasibility information is that the transaction is not feasible.
Step S404: the first blockchain 11 receives the transaction feasibility information fed back by the at least one second blockchain respectively.
Step S405: if the transaction feasibility information representation corresponding to at least a preset number of blockchains in the first blockchain and the at least one second blockchain shows 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 user identity information is less than or equal to the foreign exchange transaction maximum amount of the first user identity information for the first foreign exchange currency, the first blockchain 11 generates an instruction for allowing the foreign exchange transaction request.
In an optional embodiment, the predetermined number is selected in relation to a 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, if the total number of the first block chain and the at least one second block chain is 100, then the preset number is at least 51.
In an alternative embodiment, the preset 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 "instruction to allow the foreign exchange transaction request" refers to allowing the client's foreign exchange transaction request, i.e., allowing the client to redeem a first foreign exchange amount in a first foreign exchange currency.
In the foreign exchange transaction processing method provided by the embodiment of the application, after a foreign exchange transaction request is obtained by a first blockchain (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 block chain receives transaction feasibility information fed back by the at least one second block chain respectively; if the transaction feasibility information representations respectively corresponding to at least a preset number of blockchains in the first blockchain and the at least one second blockchain indicate 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 user identity information is less than or equal to the foreign exchange transaction maximum amount of the first user identity information for the first foreign exchange currency, and an instruction allowing a foreign exchange transaction request is generated. So even if the historical foreign exchange transaction amount stored in a blockchain is changed, no economic loss is caused to the client. Moreover, the block chain shares the database, and the data or information stored in the database has the characteristics of being unforgeable, being traceable in the whole process, being traceable, being publicly transparent, being maintained in a collective mode and the like, so that the data stored in the block chain has the property of being not falsified. Moreover, because the contents stored in the plurality of blockchains are the same, even if one blockchain is damaged, whether the foreign exchange transaction can be executed can be judged based on other blockchains, and the condition that the client cannot perform the foreign exchange transaction can be 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 represents 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 user identity information is less than or equal to the foreign exchange transaction maximum amount of the first user identity information for the first foreign exchange currency, the first blockchain may further perform the following operations. As shown in fig. 5, a flow chart of creating a block for a block chain according to an embodiment of the present application includes:
step S501: the first block chain 11 creates a first block in the first block chain.
The first block comprises a first block head and a first block main body, and the first block head stores a characteristic value obtained based on the first user identity information, the amount of the to-be-first foreign exchange and the currency of the first foreign exchange, and a characteristic value of a block head of a parent block of the first block; the first block body includes the first subscriber identity information, the first foreign currency amount, and the first foreign currency type.
Still taking fig. 2 as an example, if the first block chain includes m blocks as shown in fig. 2, the first block is the m +1 th block.
The block head of the m +1 th block stores the characteristic value of the block head of the m-th block.
In an optional embodiment, the first user identity information, the first foreign currency amount and the first foreign currency type may be subjected to a preset operation to obtain a feature value.
Optionally, 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 an instruction to create a block to the at least one second blockchain, respectively.
The instruction for creating the block is to instruct the at least one second block chain to create second blocks of the block respectively, each second block includes a second block header and a second block body, and the second block header stores therein a feature value obtained based on the first user identity information, the first foreign currency amount and the first foreign currency type, and a feature value of a block header of a parent block of the second block; the second block body includes the first subscriber identity information, the first foreign currency amount, and the first foreign currency type.
In an alternative embodiment, the first blockchain is a blockchain with the fastest response among the plurality of blockchains. In the embodiment of the present application, a block chain with the fastest response among a plurality of block chains is referred to as a first block chain, and other block chains are referred to as second block chains.
The following describes the selection process of the first blockchain from the view point of blockchains, which may be combined with the method shown in fig. 3.
As shown in fig. 6, a signaling diagram of a selection manner of a first block chain provided in the embodiment of the present application is provided, where the method includes:
in step S601, the electronic device 31 sends a query history foreign exchange transaction request to the plurality of blockchains 32.
The query historical foreign exchange transaction request comprises second user identity information, a second foreign exchange currency and target historical foreign exchange transaction time.
The second user identity information is any user identity information; the second foreign currency is any foreign currency; the target historical fx trade time is any historical fx trade time.
The total number of the block chains is n in fig. 6.
Step S602: each blockchain 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 historical foreign exchange transaction amounts for one or more foreign exchange currencies at one or more historical foreign exchange transaction times for the user identity information.
Assume that the second user identity information is user identity information C, the second fx currency is U.S. dollars, and the target historical fx transaction time is 2019, 5 month, 1 day. Then each blockchain obtains the dollar amount of user identity information C redeemed in 2019 on day 5/month 1, assumed to be $ 5000. The query result includes $ 5000.
Step S603: the electronic device 31 receives the query results fed back by the multiple block chains respectively, and records the receiving time when the query results fed back by the multiple block chains respectively are received; and determining the block chain corresponding to the minimum receiving time as a first block chain.
Assuming that the total number of the block chains is n, and assuming that, in the n block chains, the time for the electronic device 31 to receive the query result of the block chain 1 is 2019, 5, 1, 12, 44, 50, 8 centiseconds; the time of the query result of the blockchain 2 is 2019, 5, 1, 12, 44, 50, second and 9 centiseconds; the time of the query result of the blockchain 3 is 2019, 5, 1, 12, 44 minutes, 51 seconds and 9 centiseconds; …, respectively; assuming that the time for receiving the query result of the blockchain 1 is the minimum, the blockchain 1 is the first blockchain, and the blockchains 2 to n are all the second blockchains.
Step S604: the electronic device 31 sends the optimal block information to the first block chain.
And the optimal block information represents that the first block chain is the block chain which feeds back the query result fastest in the plurality of block chains.
Fig. 6 illustrates the block chain 1 as the first block chain.
Step S605: after receiving the optimal tile information, the first tile chain 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 present application, and the method of the present application can be implemented by various types of apparatuses, so that an apparatus is also disclosed in the present application, and the following detailed description is given of specific embodiments.
As shown in fig. 7, a schematic diagram of an implementation manner of a fx transaction processing apparatus applied to a first blockchain according to an embodiment of the present application is provided, where the apparatus 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 relationship between the historical transaction foreign exchange amount of the first user identity information stored in the blockchain for the first foreign currency type, the sum of the historical transaction foreign exchange amount and the first foreign exchange amount, and the maximum foreign exchange transaction amount of the first user identity information for the first foreign currency type;
a generating module 74, configured to generate an instruction for allowing the foreign exchange transaction request if the transaction feasibility information representations corresponding to at least a preset number of blockchains in the first blockchain and the at least one second blockchain represent 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 generating module for the first user identity information is less than or equal to a foreign exchange transaction maximum amount of the first user identity information for the first foreign exchange currency.
Optionally, the sending module includes:
the determining unit is used for determining the transaction feasibility information of the first block chain;
a sending unit, configured to send the foreign exchange transaction request to the at least one second blockchain if the transaction feasibility information of the first blockchain indicates 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 in the first blockchain is less than or equal to a foreign exchange transaction maximum amount of the first user identity information for the first foreign exchange currency.
Optionally, the method further includes:
a creating module, configured to create a first block in the first blockchain if the transaction feasibility information corresponding to at least the preset number of blockchains represents 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 creating module for the first blockchain is less than or equal to a foreign exchange transaction maximum amount of the first user identity information for the first foreign exchange currency in the first blockchain;
the first block comprises a first block head and a first block main body, and the first block head stores a characteristic value obtained based on the first user identity information, the first foreign exchange amount and the first foreign exchange currency, and a characteristic value of a block head of a parent block of the first block; the first block body comprises the first user identity information, the first foreign currency amount and the first foreign currency type;
a second sending module, configured to send a block creation instruction to the at least one second block chain, where the block creation instruction is an instruction to instruct the at least one second block chain to create a second block of its own, the second block includes a second block header and a second block main body, and the second block header stores therein a feature value obtained based on the first user identity information, the first foreign exchange amount, and the first foreign exchange currency, and a feature value of a block header of a parent block of the second block; the second block body includes the first subscriber identity information, the first foreign currency amount, and the first foreign currency type.
Optionally, the method further includes:
the second acquisition module is used for acquiring a historical foreign exchange transaction query request, wherein the historical foreign exchange transaction query request comprises second user identity information, a second foreign exchange currency and target historical 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 the foreign exchange transaction request if receiving the optimal block information which represents that the first block chain is the fastest feedback query result in the 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, and when the computer program is executed by a processor, the method for processing the foreign exchange transaction is realized according to any one of the above methods.
Note that the features described in the embodiments in the present specification may be replaced with or combined with each other. For the device or system type embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
It is further noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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 an … …" does not exclude the presence of other identical 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. A software module may reside 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 for processing a foreign exchange transaction, comprising:
the method comprises the steps that a first blockchain acquires 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 sends the foreign exchange transaction request to at least one second blockchain;
the first block chain receives transaction feasibility information fed back by the at least one second block chain respectively;
the transaction feasibility information corresponding to one blockchain refers to the relationship between the sum of the historical transaction foreign exchange amount of the first user identity information for the first foreign currency and the first foreign exchange amount stored in the blockchain and the maximum foreign exchange transaction amount of the first user identity information for the first foreign currency;
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 for the first foreign exchange currency and the first foreign exchange amount stored by the first user identity information is less than or equal to the foreign exchange transaction maximum amount of the first user identity information for the first foreign exchange currency, generating an instruction for allowing the foreign exchange transaction request.
2. The foreign exchange transaction processing method of claim 1, wherein the sending the foreign exchange transaction request 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 represents 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 in the first blockchain is less than or equal to the foreign exchange transaction maximum amount of the first user identity information for the first foreign exchange currency, sending the foreign exchange transaction request to the at least one second blockchain.
3. The foreign exchange transaction processing method 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 for the first foreign exchange currency and the first foreign exchange amount stored by the first user identity information is less than or equal to the foreign exchange transaction maximum amount of the first user identity information for 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, and the first block head stores a characteristic value obtained based on the first user identity information, the first foreign exchange amount and the first foreign exchange currency, and a characteristic value of a block head of a parent block of the first block; the first block body comprises the first user identity information, the first foreign currency amount and the first foreign currency type;
sending a block creating instruction to the at least one second block chain respectively, wherein the block creating instruction is an instruction for instructing the at least one second block chain to create own second blocks respectively, each second block comprises a second block head and a second block main body, and the second block head stores therein a feature value obtained based on the first user identity information, the first foreign currency amount and the first foreign currency type, and a feature value of a block head of a parent block of the second block; the second block body includes the first subscriber identity information, the first foreign currency amount, and the first foreign currency type.
4. The foreign exchange transaction processing method according to claim 1 or 2, further comprising:
acquiring a historical foreign exchange transaction query request, wherein the historical foreign exchange transaction query request comprises second user identity information, a second foreign exchange currency and target historical foreign exchange transaction time;
acquiring 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;
feeding back a query result containing the target historical foreign exchange transaction amount;
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 the plurality of block chains;
the plurality of blockchains includes the first blockchain and the at least one second blockchain.
5. A foreign exchange transaction processing apparatus, applied to a first blockchain, comprising:
the system comprises a first acquisition module, a second acquisition module and a third 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, configured to send 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 relationship between the historical transaction foreign exchange amount of the first user identity information stored in the blockchain for the first foreign currency type, the sum of the historical transaction foreign exchange amount and the first foreign exchange amount, and the maximum foreign exchange transaction amount of the first user identity information for the first foreign currency type;
a generating module, configured to generate an instruction for allowing the foreign exchange transaction request if, in the first blockchain and the at least one second blockchain, the transaction feasibility information corresponding to at least a preset number of blockchains represents 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 generating module for the first user identity information is less than or equal to a foreign exchange transaction maximum amount of the first user identity information for the first foreign exchange currency.
6. The foreign exchange transaction processing apparatus of claim 5, wherein the sending module comprises:
the determining unit is used for determining the transaction feasibility information of the first block chain;
a sending unit, configured to send the foreign exchange transaction request to the at least one second blockchain if the transaction feasibility information of the first blockchain indicates 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 in the first blockchain is less than or equal to a foreign exchange transaction maximum amount of the first user identity information for the first foreign exchange currency.
7. A readable storage medium having stored thereon a computer program for, when executed by a processor, implementing a method for processing a foreign exchange transaction according to any one of claims 1 to 5.
8. A foreign exchange transaction processing system, comprising:
the method comprises the steps of determining a first blockchain from a plurality of blockchains, wherein the plurality of blockchains except the first blockchain are called second blockchains;
the first block chain is used for acquiring 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; sending the foreign exchange transaction request to at least one second blockchain; comparing the sum of the historical transaction foreign exchange amount of the first foreign exchange currency for which the first user identity information is stored with the first foreign exchange amount with the size of the foreign exchange transaction maximum amount of the first foreign exchange currency corresponding to the first user identity information to obtain transaction feasibility information;
the at least one second block chain is used for acquiring historical transaction foreign exchange amount of the first user identity information aiming at the first foreign exchange currency, which is stored by the second block chain after the foreign exchange transaction request is received; comparing the sum of the historical transaction foreign exchange amount of the first user identity information aiming at the first foreign exchange currency with the first foreign exchange amount, obtaining transaction feasibility information aiming at the size of the foreign exchange transaction maximum amount of the first foreign exchange currency by the first user identity information, and sending the transaction feasibility information to the first block chain;
the first block chain is further used for receiving transaction feasibility information fed back by at least one second block chain respectively; 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 for the first foreign exchange currency and the first foreign exchange amount stored by the first user identity information is less than or equal to the foreign exchange transaction maximum amount of the first user identity information for the first foreign exchange currency, and an instruction allowing the foreign exchange transaction request is generated.
9. The fx transaction processing system according to claim 8, wherein the electronic device, when performing the determination of the first blockchain from the plurality of blockchains, is specifically configured to:
sending a query historical foreign exchange transaction request to the plurality of blockchains, wherein the query historical foreign exchange transaction request comprises second user identity information, a second foreign exchange currency and a target historical foreign exchange transaction time;
receiving the query results fed back by the block chains respectively, and recording the receiving time when the query results fed back by the block chains respectively are received; the query result of one blockchain comprises a target historical foreign exchange transaction amount of the second user identity stored in the blockchain aiming at the second foreign exchange currency at the target historical foreign exchange transaction time;
determining a block chain corresponding to the minimum receiving time as the first block chain;
and sending optimal block information to the first block chain, wherein the optimal block information represents that the first block chain is the block chain which feeds back the query result fastest in the plurality of block chains.
10. The fx transaction processing system according to claim 9, wherein the first blockchain is further configured to:
and after receiving the optimal block information, monitoring the input of a foreign exchange transaction request.
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